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  • 1101.
    Barnekow, Carl-Henrik
    Blekinge Institute of Technology, School of Technoculture, Humanities and Planning.
    Hattholmen: en stadsdelsförvandling i Karlskrona2008Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Karlskrona är unikt i Sverige genom sin geografiska placering i kustlandskapet med de begränsningar det ger för framtida utvidgningar. Centrala Trossö ligger i en ände av staden och under flera århundraden har staden bara kunnat växa in över land. När många städer pratar om stadsformer som ”rund stad” och ”bandstad” har Karlskrona en form av ”tårtbitsstad” med centrum i spetsen och resten av staden i nordöstlig riktning. Staden strävar efter att behålla Trossö som centrum, men har idag problem med att allt fler bor längre och längre från ön. Genom att det geografiska läget är som det är råder det idag brist på utrymme för staden att växa med ny bebyggelse nära centrum, medan vissa industriområden ligger väldigt centralt. Dessa områden kan omvandlas till bostadsområden och de förutsättningar som behövs för att staden skall kunna växa med en tät och hållbar stadsbebyggelse kan skapas. Arbetet har tagit fram ett förslag på hur en framtida stadsbebyggelse på ett centralt industriområde, Hattholmen, kan utformas. För att stärka förslaget har en Space Syntax-analys gjorts över centrala delarna av Karlskrona tillsammans med andra studenter i kursen Stadsanalys på Blekinge Tekniska Högskola under vårterminen 2008. Analysen visar hur svagt integrerat nordöstra Trossö är med resterande delar av centrum. Analysresultatet har tillsammans med inventeringar av det tänkta arbetsområdet varit grund för det framtagna förslaget. Med god utvecklad stadsbebyggelse på Hattholmen växer Karlskrona med en ny stadsdel nära centrum. Förutsättningar för nya allmänna mötesplatser, promenadstråk och parker skapas både i Handelshamnen och på Hattholmen. Genom en bro över Handelsfjärden knyts den nya stadsdelen direkt till centrala Karlskrona och nya attraktiva bostäder på gångavstånd från Trossö. Torgbildningar och parker kan naturligt placeras vid brons landfästen, allt medan staden underlättar och främjar ett miljövänligt rörelsemönster och förstärker stadens kulturhistoriska värden genom den starka kontakten med havet. Efter att förslagets tagits fram har en Space Syntax-analys gjorts med förslaget som grund för att visa hur dess inverkan blir på stadsstrukturen omkring sig. Analysen visar tydligrationen ökar för Handelshamnen omen och stärker nordöstra Trossö.

  • 1102. Barney, Sebastian
    Perspectives on Software and their Priorities: Balancing Conflicting Stakeholder Views2009Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    The sustainable development of a software product depends on a number of groups working together to achieve a common goal. However, each of the groups interacts with the product in different ways, and can have conflicting aims and objectives. For example, developers trying to correct issues in the software architecture, which will impact future releases of the product, can be stopped by a project manager who is charged with delivering a release on time and within budget. While the functional requirements of a software product are usually documented, there are a number of other investments in software development that are not always as explicitly agreed upon but are still essential to a product's long-term success. The major investment types include software product quality -- a main control variable in software development, and intellectual capital (IC) -- being the key input and tool used in software development. As management requires measurement, it is necessary understand the priorities placed on investment options by the various groups involved in the development of a software product. The objective of this thesis is to develop a method capable of both determining the priorities of different groups, and the level of alignment between these groups in terms of their priorities. Evolving the method from a study into the values used to select requirements for a release of software, Ericsson supported the development of a methodology to determine and compare the priorities of different groups for software product quality, and IC. The method elicited the required information from a series of case studies to build up a picture of the priorities placed on major investment options and constraints -- features, quality, IC, time and cost. The results highlight strengths, and areas for improvement -- through the identification of differing priorities and ambiguities in management of different aspects studied. In conducting this research, systematic biases in the selection of requirements appear to be occurring, adding an objective to understand how bias impacts decision making in a requirements engineering context. This thesis provides a method that determines the priorities on the level of investment on different options in the development of software products. It is concluded that people involved in the development of software need to be aligned on issues of software product quality as these priorities set expectations. The same was not found true for issues of IC, where groups can complete tasks without negatively impacting others, as long as the organisation works effectively as a single entity. On the issue of biases in the prioritisation of these aspects, prospect theory is found to apply to requirements selection in an academic experiment -- suggesting people will prefer functionality over software product quality, and to meet the known requirements of customers over predicting general market requirements.

  • 1103. Barney, Sebastian
    Software Quality Alignment: Evaluation and Understanding2011Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Background: The software development environment is growing increasingly complex, with a greater diversity of stakeholders involved in product development. Moves towards global software development with onshoring, offshoring, insourcing and outsourcing have seen a range of stakeholders introduced to the software development process, each with their own incentives and understanding of their product. These differences between the stakeholders can be especially problematic with regard to aspects of software quality. The aspects are often not clearly and explicitly defined for a product, but still essential for its long-term sustainability. Research shows that software projects are more likely to succeed when the stakeholders share a common understanding of software quality. Objectives: This thesis has two main objectives. The first is to develop a method to determine the level of alignment between stakeholders with regard to the priority given to aspects of software quality. Given the ability to understand the levels of alignment between stakeholders, the second objective is to identify factors that support and impair this alignment. Both the method and the identified factors will help software development organisations create work environments that are better able to foster a common set of priorities with respect to software quality. Method: The primary research method employed throughout this thesis is case study research. In total, six case studies are presented, all conducted in large or multinational companies. A range of data collection techniques have been used, including questionnaires, semi-structured interviews and workshops. Results: A method to determine the level of alignment between stakeholders on the priority given to aspects of software quality is presented—the Stakeholder Alignment Assessment Method for Software Quality (SAAM-SQ). It is developed by drawing upon a systematic literature review and the experience of conducting a related case study. The method is then refined and extended through the experience gained from its repeated application in a series of case studies. These case studies are further used to identify factors that support and impair alignment in a range of different software development contexts. The contexts studied include onshore insourcing, onshore outsourcing, offshore insourcing and offshore outsourcing. Conclusion: SAAM-SQ is found to be robust, being successfully applied to case studies covering a range of different software development contexts. The factors identified from the case studies as supporting or impairing alignment confirm and extend research in the global software development domain.

  • 1104. Barney, Sebastian
    et al.
    Aurum, Aybüke
    Hu, Ganglan
    Wohlin, Claes
    Creating Software Product Value in China2009In: IEEE Software, ISSN 0740-7459 , Vol. 26, no 4Article in journal (Refereed)
    Abstract [en]

    China has become a formidable player and continues to grow strongly in what has become a dynamic global market for software development. In this highly competitive environment it has never been more difficult or important to maximize the creation of software product value. But each key stakeholder group – purchasers, users, software managers and developers – has a different notion of value when looking at a software product. As the value of a software product is largely derived through the requirements it fulfils, we looked at the criteria used to select and prioritise requirements for a release of software, and the perspectives that motivate them. The value of a software product is largely derived through the requirements it fulfils. To help understand how value is created we looked at the criteria used to select and prioritise requirements for a release of software, and the perspectives that motivate them. We studied three groups of software development companies operating in China – Chinese companies with a domestic market, Chinese companies with an international market, and western companies operating in China. The results were similar for all three groups, except After-sales Support was a significantly greater concern for Chinese companies with an international market.

  • 1105. Barney, Sebastian
    et al.
    Aurum, Aybüke
    Wohlin, Claes
    A Product Management Challenge: Creating Software Product Value through Requirements Selection2008In: Journal of systems architecture, ISSN 1383-7621, E-ISSN 1873-6165, Vol. 54, no 6, p. 576-593Article in journal (Refereed)
    Abstract [en]

    It is important for a software company to maximize value creation for a given investment. The purpose of requirements engineering activities is to add business value that is accounted for in terms of return on investment of a software product. This paper provides insight into the release planning processes used in the software industry to create software product value, by presenting three case studies. It examines how IT professionals perceive value creation through requirements engineering and how the release planning process is conducted to create software product value. It also presents to what degree the major stakeholders' perspectives are represented in the decision-making process. Our findings show that the client and market base of the software product represents the most influential group in the decision to implement specific requirements. This is reflected both in terms of deciding the processes followed and the decision-making criteria applied when selecting requirements for the product. Furthermore, the management of software product value is dependant on the context in which the product exists. Factors, such as the maturity of the product, the marketplace in which it exists, and the development tools and methods available, influence the criteria that decide whether a requirement is included in a specific project or release.

  • 1106. Barney, Sebastian
    et al.
    Aurum, Aybüke
    Wohlin, Claes
    A product management challenge: Creating software product value through requirements selection2008Conference paper (Refereed)
    Abstract [en]

    It is important for a software company to maximize value creation for a given investment. The purpose of requirements engineering activities is to add business value that is accounted for in terms of return on investment of a software product. This paper provides insight into the release planning processes used in the software industry to create software product value, by presenting three case studies. It examines how IT professionals perceive value creation through requirements engineering and how the release planning process is conducted to create software product value. It also presents to what degree the major stakeholders' perspectives are represented in the decision-making process. Our findings show that the client and market base of the software product represents the most influential group in the decision to implement specific requirements. This is reflected both in terms of deciding the processes followed and the decision-making criteria applied when selecting requirements for the product. Furthermore, the management of software product value is dependant on the context in which the product exists. Factors, such as the maturity of the product, the marketplace in which it exists, and the development tools and methods available, influence the criteria that decide whether a requirement is included in a specific project or release. (C) 2007 Elsevier B.V. All rights reserved.

  • 1107. Barney, Sebastian
    et al.
    Aurum, Aybüke
    Wohlin, Claes
    Quest for a Silver Bullet: Creating Software Product Value through Requirements Selection2006Conference paper (Refereed)
  • 1108. Barney, Sebastian
    et al.
    Aurum, Aybüke
    Wohlin, Claes
    The Relative Importance of Aspects of Intellectual Capital for Software Companies2009Conference paper (Refereed)
    Abstract [en]

    Intellectual capital (IC) is both the key input and tool used in the development of software today. It covers the value provided to an organisation by the employees, the processes and products that support the organisation, and the knowledge held in the relationships between the organisation and external parties – covering human capital, structural capital, and relationship capital respectively. This paper presents a method that seeks to understand the level of alignment between the different success-critical stakeholders in the importance of different aspects of intellectual capital. The method is applied in a case study and provides a number of interesting insights, with the authors concluding that the groups do not necessarily need to be aligned as each groups has a different informational role within the organisation to fulfil.

  • 1109.
    Barney, Sebastian
    et al.
    Blekinge Institute of Technology, School of Computing.
    Khurum, Mahvish
    Blekinge Institute of Technology, School of Computing.
    Petersen, Kai
    Blekinge Institute of Technology, School of Computing.
    Unterkalmsteiner, Michael
    Blekinge Institute of Technology, School of Computing.
    jabangwe, Ronald
    Blekinge Institute of Technology, School of Computing.
    Improving Students With Rubric-Based Self-Assessment and Oral Feedback2012In: IEEE Transactions on Education, ISSN 0018-9359, Vol. 55, no 3, p. 319-325Article in journal (Refereed)
    Abstract [en]

    Rubrics and oral feedback are approaches to help students improve performance and meet learning outcomes. However, their effect on the actual improvement achieved is inconclusive. This paper evaluates the effect of rubrics and oral feedback on student learning outcomes. An experiment was conducted in a software engineering course on requirements engineering, using the two approaches in course assignments. Both approaches led to statistically significant improvements, though no material improvement (i.e., a change by more than one grade) was achieved. The rubrics led to a significant decrease in the number of complaints and questions regarding grades.

  • 1110.
    Barney, Sebastian
    et al.
    Blekinge Institute of Technology, School of Computing.
    Mohankumar, Varun
    Chatzipetrou, Panagiota
    Aurum, Aybüke
    Wohlin, Claes
    Blekinge Institute of Technology, School of Computing.
    Angelis, Lefteris
    Software quality across borders: Three case studies on company internal alignment2014In: Information and Software Technology, ISSN 0950-5849, E-ISSN 1873-6025, Vol. 56, no 1, p. 20-38Article in journal (Refereed)
    Abstract [en]

    Software quality issues are commonly reported when offshoring software development. Value-based software engineering addresses this by ensuring key stakeholders have a common understanding of quality. Objective: This work seeks to understand the levels of alignment between key stakeholder groups within a company on the priority given to aspects of software quality developed as part of an offshoring relationship. Furthermore, the study aims to identify factors impacting the levels of alignment identified. Method: Three case studies were conducted, with representatives of key stakeholder groups ranking aspects of software quality in a hierarchical cumulative exercise. The results are analysed using Spearman rank correlation coefficients and inertia. The results were discussed with the groups to gain a deeper understanding of the issues impacting alignment. Results: Various levels of alignment were found between the various groups. The reasons for misalignment were found to include cultural factors, control of quality in the development process, short-term versus long-term orientations, understanding of cost-benefits of quality improvements, communication and coordination. Conclusions: The factors that negatively affect alignment can vary greatly between different cases. The work emphasises the need for greater support to align company internal success-critical stakeholder groups in their understanding of quality when offshoring software development.

  • 1111.
    Barney, Sebastian
    et al.
    Blekinge Institute of Technology, School of Computing.
    Petersen, Kai
    Blekinge Institute of Technology, School of Computing.
    Svahnberg, Mikael
    Blekinge Institute of Technology, School of Computing.
    Aurum, Aybueke
    Barney, Hamish
    Software quality trade-offs: A systematic map2012In: Information and Software Technology, ISSN 0950-5849, E-ISSN 1873-6025, Vol. 54, no 7, p. 651-662Article, review/survey (Refereed)
    Abstract [en]

    Background: Software quality is complex with over investment, under investment and the interplay between aspects often being overlooked as many researchers aim to advance individual aspects of software quality. Aim: This paper aims to provide a consolidated overview the literature that addresses trade-offs between aspects of software product quality. Method: A systematic literature map is employed to provide an overview of software quality trade-off literature in general. Specific analysis is also done of empirical literature addressing the topic. Results: The results show a wide range of solution proposals being considered. However, there is insufficient empirical evidence to adequately evaluate and compare these proposals. Further a very large vocabulary has been found to describe software quality. Conclusion: Greater empirical research is required to sufficiently evaluate and compare the wide range of solution proposals. This will allow researchers to focus on the proposals showing greater signs of success and better support industrial practitioners.

  • 1112. Barney, Sebastian
    et al.
    Wohlin, Claes
    Alignment of Software Product Quality Goals in Two Outsourcing Relationships2010Conference paper (Refereed)
    Abstract [en]

    Background: Issues with software product quality are commonly reported when organisations engage in outsourcing relationships. To address this issue, value-based software engineering literature emphasises the need for all success-critical stakeholder groups to work towards a mutually agreed goal. Aim: This paper presents a case study that aims to compare and contrast the priority two groups place on software product quality — stakeholders internal to the development organisation, and stakeholders from outsourcing relationships. Method: A model of software product quality was developed and used for this study based on ISO 9126 standard. Questionnaires were collected from 38 representatives of the two key stakeholder groups, in which each person rates the relative importance of aspects of software product quality using the hierarchical cumulative voting (HCV) technique. The results of these two groups were then analysed and compared. Results: The results show the stakeholders priorities to be a merging of the priorities from both the software development organsiation, and the firm providing the outsourced services. Further, stakeholders from outsourced relationships had greater difficulty define an ideal future balance of software product qualities. Conclusions: One of the keys to success when outsourcing is to ensure both the internal and external groups understand the needs of each other — and ensure they can work towards a sufficiently compatible goal. It may be necessary to change the way work is outsourced to align the goals of both firms to be compatible.

  • 1113. Barney, Sebastian
    et al.
    Wohlin, Claes
    Software Product Quality: Ensuring a Common Goal2009Conference paper (Refereed)
    Abstract [en]

    Software qualities are in many cases tacit and hard to measure. Thus, there is a potential risk that they get lower priority than deadlines, cost and functionality. Yet software qualities impact customers, profits and even developer efficiency. This paper presents a method to evaluate the priority of software qualities in an industrial context. The method is applied in an exploratory case study, where the ISO 9126 model for software quality is combined with Theory-W to create a process for evaluating the alignment between success- critical stakeholder groups in the area of software product quality. The results of the case study using this tool is then presented and discussed. It is shown that the method provides valuable information about software qualities.

  • 1114. Barney, Sebastian
    et al.
    Wohlin, Claes
    Aurum, Aybüke
    Balancing Software Product Investments2009Conference paper (Refereed)
    Abstract [en]

    The long-term sustainability of a software product depends on more than developing features. Priorities are placed on aspects that support the development of software, like software product quality (eg. ISO 9126), project constraints -- time and cost, and even the development of intellectual capital (IC). A greater focus on any one aspect takes priority from another, but as each aspects delivers a different type of value managers have trouble comparing and balancing these aspects. This paper presents a method to help determine the balance between key priorities in the software development process. The method is applied to a new case study, that also combines with results from previous studies. The results show it is possible to compare features, quality, time, cost and IC in a comprehensive way, with the case study showing that participants perceive a change from a shorter-term product perspective to a longer-term organisation beneficial to the business.

  • 1115. Barney, Sebastian
    et al.
    Wohlin, Claes
    Chatzipetrou, Panagiota
    Angelis, Lefteris
    Offshore insourcing: A case study on software quality alignment2011Conference paper (Refereed)
    Abstract [en]

    Background: Software quality issues are commonly reported when off shoring software development. Value-based software engineering addresses this by ensuring key stakeholders have a common understanding of quality. Aim: This work seeks to understand the levels of alignment between key stakeholders on aspects of software quality for two products developed as part of an offshore in sourcing arrangement. The study further aims to explain the levels of alignment identified. Method: Representatives of key stakeholder groups for both products ranked aspects of software quality. The results were discussed with the groups to gain a deeper understanding. Results: Low levels of alignment were found between the groups studied. This is associated with insufficiently defined quality requirements, a culture that does not question management and conflicting temporal reflections on the product's quality. Conclusion: The work emphasizes the need for greater support to align success-critical stakeholder groups in their understanding of quality when off shoring software development

  • 1116.
    Baron-Bonarjee, Jean-Paul
    et al.
    Blekinge Institute of Technology, School of Engineering.
    Elal, Rifat Abed
    Blekinge Institute of Technology, School of Engineering.
    Nguyen, Quynh Van
    Blekinge Institute of Technology, School of Engineering.
    Fostering a Culture of Sustainabilty in Municipalities through Effective Training2013Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    Human society as a whole has a reached a tipping point in its relationship with the socio-ecological systems upon which it depends. All sectors of society need to be involved in addressing this crucial challenge through a raised awareness of the issues and pro-active solutions to it. This research focuses on small urban towns and cities, where half the world’s urban population lives, and looks at the ways in which local government in these key areas can play an active role in leading sustainability through education and training. Municipalities and communities that use the framework for strategic sustainable development (FSSD) were investigated, and the conditions were identified that helped and hindered training to be really effective. Effective training, in its many forms, was found to be essential in fomenting a common language of sustainability, engaging the community, and bringing concerted strategic actions that together could foster a culture of sustainability.

  • 1117.
    Barrow, Charlotte
    et al.
    Blekinge Institute of Technology, School of Engineering.
    Peterka, Stephanie
    Blekinge Institute of Technology, School of Engineering.
    Ozcuhadar, Tuna
    Blekinge Institute of Technology, School of Engineering.
    Open Source as Leverage towards Sustainable Housing2010Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    Shelter poses global sustainability challenges, as the population increase accelerates and resources dwindle. It is crucial for initiatives addressing the growing housing demand to incorporate a sustainability perspective. Open source, a form of Internet information-sharing, is being utilised by various housing initiatives worldwide. However, a sustainability perspective is not always included in a robust and holistic way, despite the negative impacts for human needs and ecosystems resulting from many aspects of current housing practices. The Framework for Strategic Sustainable Development includes basic conditions for a sustainable society and a planning and decision-making methodology to move systematically towards sustainability. It provides a robust method for organizing, evaluating and using tools to aid in handling sustainability challenges effectively. This thesis aims to contribute to the development of affordable, sustainable design solutions, by modelling the incorporation of the FSSD into open source housing initiatives. A case study of a housing project under development in Ghana is used. Despite the complexity of the system under study, the research concludes that bringing a strategic sustainable development perspective to open source approaches can act as leverage for housing to move towards sustainability. Within this context, guidance is provided for approaching open source housing to contribute to SSD.

  • 1118.
    Barry, Cecilia
    Blekinge Institute of Technology, Faculty of Computing, Department of Technology and Aesthetics.
    ROOTS: What could emerge out of thinking and acting networked roots as design?2017Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Abstract

    ROOTS – What Could Emerge Out of Thinking and Acting Networked ROOTS as Design?

     

    This bachelor’s thesis uses ROOTS as a method designed to engage in both thinking and acting inside networks, by creating a hydroponic gardening network. As a designer one engages in many different fields of design. The most complicated design is designing networks with function, interlaced and embedded in everyday life. This is known as accountability, to be accountable to ones decisions and to act on many perspectives when designing. Accountability is designing from somewhere, and being aware of where that somewhere stems from. ROOTS visualizes accountability in a network, as accountability entails thinking and acting inside a network, and by doing so one actively engages in thinking about futures and design as a whole. When asking oneself what could emerge out of thinking and acting networked ROOTS as design, one begins to speculate in matters of vast networked complexity. From observation using methods such as ANT, the technologic extension T-ANT and also conducting a study in messiness, information is created and from the information, valuing becomes present, from valuing knowledge grows, from knowledge comes accountability and the network creates another cycle of ROOTS.

     

    Keywords: Design, Network, Accountability, Complexity

  • 1119.
    Barsing, Jonas
    Blekinge Institute of Technology, Faculty of Engineering, Department of Industrial Economics.
    A Cost Breakdown and Production Uncertainty Analysis of Additive Manufacturing: A Study of Low-Volume Components Produced with Selective Laser Melting2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background:

    Additive manufacturing has recently gained cogency as a final part manufacturing technique. The method uses a layer-upon-layer technique to build three-dimensional objects. This technique has many advantages creating new opportunities regarding production.

    Purpose:

    The purpose of the study is to investigate cost elements, cost drivers, their weight distribution, and to explore production uncertainties of the additive manufacturing process. The production uncertainty parameters of the explored uncertainties are then evaluated to investigate how some of them impacts the production cost of the case component.

    Method:

    The following study have used qualitative data collection methods in terms of interviews together with a pre-study and a sensitivity analysis tool to identify cost impacts of uncertainty parameters. Five primary interviews were performed with employees at the company with relevant knowledge of the studied field.

    Results:

    The result shows that the product cost can be divided into two categories of material cost and manufacturing costs, these two categories then have different cost elements that drives cost. The explored uncertainties of the process consist of both aleatory and epistemic uncertainty. The explored production uncertainty parameter that affects the final product cost the most is the time needed to finish the AM build.

    Conclusions:

    Considering production uncertainty is important in order to have reliable and accurate cost estimations. The three explored production uncertainties that have the most significant impact on the final product cost is the yearly machine running time, the SLM machine time needed to finish the component, and reduced manning time in the operations. These three uncertainty parameters should, therefore, have a larger focus than variables that do not have the same impact on the final product cost, to create better cost estimations.

  • 1120.
    Bartunek, Josef Strom
    et al.
    Blekinge Institute of Technology, School of Engineering, Department of Electrical Engineering.
    Nilsson, Mikael
    Sällberg, Benny
    Blekinge Institute of Technology, School of Engineering, Department of Electrical Engineering.
    Claesson, Ingvar
    Blekinge Institute of Technology, School of Engineering, Department of Electrical Engineering.
    Adaptive Fingerprint Image Enhancement With Emphasis on Preprocessing of Data2013In: IEEE Transactions on Image Processing, ISSN 1057-7149, E-ISSN 1941-0042, Vol. 22, no 2, p. 644-656Article in journal (Refereed)
    Abstract [en]

    This article proposes several improvements to an adaptive fingerprint enhancement method that is based on contextual filtering. The term adaptive implies that parameters of the method are automatically adjusted based on the input fingerprint image. Five processing blocks comprise the adaptive fingerprint enhancement method, where four of these blocks are updated in our proposed system. Hence, the proposed overall system is novel. The four updated processing blocks are: 1) preprocessing; 2) global analysis; 3) local analysis; and 4) matched filtering. In the preprocessing and local analysis blocks, a nonlinear dynamic range adjustment method is used. In the global analysis and matched filtering blocks, different forms of order statistical filters are applied. These processing blocks yield an improved and new adaptive fingerprint image processing method. The performance of the updated processing blocks is presented in the evaluation part of this paper. The algorithm is evaluated toward the NIST developed NBIS software for fingerprint recognition on FVC databases.

  • 1121.
    Bartunek, Josef Ström
    Blekinge Institute of Technology, School of Engineering, Department of Signal Processing.
    Minutiae Extraction from Fingerprint with Neural Network and Minutiae based Fingerprint Verification2004Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    Human fingerprints are rich in details called minutiae, which can be used as identification marks for fingerprint verification. The goal of this thesis is to develop a complete system for fingerprint verification through extracting and matching minutiae. A neural network is trained using the back-propagation algorithm and will work as a classifier to locate various minutiae. To achieve good minutiae extraction in fingerprints with varying quality, preprocessing in form of binarization and skeletonization is first applied on fingerprints before they are evaluated by the neural network. Extracted minutiae are then considered as a 2D point pattern problem and an algorithm is used to determine the number of matching points between two point patterns. Performance of the developed system is evaluated on a database with fingerprints from different people and experimental results are presented.

  • 1122. Bartunek, Josef Ström
    et al.
    Nilsson, Mikael
    Nordberg, Jörgen
    Claesson, Ingvar
    Adaptive Fingerprint Binarization by Frequency Domain Analysis2006Conference paper (Other academic)
    Abstract [en]

    This paper presents a new approach for fingerprint enhancement by using directional filters and binarization. A straightforward method for automatically tuning the size of local area is obtained by analyzing entire fingerprint image in the frequency domain. Hence, the algorithm will adjust adaptively to the local area of the fingerprint image, independent on the characteristics of the fingerprint sensor or the physical appearance of the fingerprints. Frequency analysis is carried out in the local areas to design directional filters. Experimental results are presented.

  • 1123. Bartunek, Josef Ström
    et al.
    Nilsson, Mikael
    Nordberg, Jörgen
    Claesson, Ingvar
    Improved Adaptive Fingerprint Binarization2008Conference paper (Refereed)
    Abstract [en]

    In this paper improvements to a previous work are presented. Removing the redundant artifacts in the fingerprint mask is introduced enhancing the final result. The proposed method is entirely adaptive process adjusting to each fingerprint without any further supervision of the user. Hence, the algorithm is insensitive to the characteristics of the fingerprint sensor and the various physical appearances of the fingerprints. Further, a detailed description of fingerprint mask generation not fully described in the previous work is presented. The improved experimental results are presented.

  • 1124. Bartunek, Josef Ström
    et al.
    Nilsson, Mikael
    Nordberg, Jörgen
    Claesson, Ingvar
    Neural Network based Minutiae Extraction from Skeletonized Fingerprints2006Conference paper (Other academic)
    Abstract [en]

    Human fingerprints are rich in details denoted minutiae. In this paper a method of minutiae extraction from fingerprint skeletons is described. To identify the different shapes and types of minutiae a neural network is trained to work as a classifier. The proposed neural network is applied throughout the fingerprint skeleton to locate various minutiae. A scheme to speed up the process is also presented. Extracted minutiae can then be used as identification marks for automatic fingerprint matching.

  • 1125.
    Bartunek, Julia
    Blekinge Institute of Technology, School of Management.
    Undersökning av personlighetsdrag hos kriminella,rehabiliterade och icke-kriminella personer med femfaktorsmodellen2007Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Studiens syfte var att undersöka om och hur skiljer sig personligheter av personer som är intagna i fängelse, rehabiliterade personer och personer som inte har begått något brott. Personlighetsundersökning baserades på femfaktorsmodell och en enkät som bestod av 50 frågor. Samtliga faktorer jämfördes genom alla tre grupper. Vidare gjordes en jämförelse av vilken typ av brott har de intagna och rehabiliterade personer begått, vilka drivkrafter hade dem och vad de tyckte var viktigt i deras liv för att inte begå brott vilken realiserades genom en konstant komparativ metod. Personlighetsskillnaderna undersöktes genom Kruskal-Wallis test. Urvalet bestod av 21 deltagare, varav 5 var intagna, 6 var rehabiliterade personer och 10 var icke-kriminella. Resultatet visade signifikanta skillnader i Neuroticism och Vänlighet, majoriteten av kriminella har begått narkotika brott och viktiga aspekter i deras liv var familj, arbete och lugn och ro.

  • 1126.
    Barysau, Mikalai
    Blekinge Institute of Technology, Faculty of Computing, Department of Software Engineering.
    Developers' performance analysis based on code review data: How to perform comparisons of different groups of developers2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Nowadays more and more IT companies switch to the distributed development model. This trend has a number of advantages and disadvantages, which are studied by researchers through different aspects of the modern code development. One of such aspects is code review, which is used by many companies and produces a big amount of data. A number of studies describe different data mining and data analysis approaches, which are based on a link between code review data and performance. According to these studies analysis of the code review data can give a good insight to the development performance and help software companies to detect a number of performance issues and improve the quality of their code.

    The main goal of this Thesis was to collect reported knowledge about the code review data analysis and implement a solution, which will help to perform such analysis in a real industrial setting.

    During the performance of the research the author used multiple research techniques, such as Snowballing literature review, Case study and Semi-structured interviews.

    The results of the research contain a list of code review data metrics, extracted from the literature and a software tool for collecting and visualizing data.

    The performed literature review showed that among the literature sources, related to the code review, relatively small amount of sources are related to the topic of the Thesis, which exposes a field for a future research. Application of the found metrics showed that most of the found metrics are possible to use in the context of the studied environment. Presentation of the results and interviews with company's representatives showed that the graphic plots are useful for observing trends and correlations in development of company's development sites and help the company to improve its performance and decision making process.

  • 1127.
    Barzandeh, Fakhri
    et al.
    Blekinge Institute of Technology, Faculty of Engineering, Department of Strategic Sustainable Development.
    Haug, Lynn-Katrin
    Blekinge Institute of Technology, Faculty of Engineering, Department of Strategic Sustainable Development.
    Jannink, Alisa
    Blekinge Institute of Technology, Faculty of Engineering, Department of Strategic Sustainable Development.
    Planning for Refugee Settlement and Integration: A Strategic Social Sustainability Approach2016Independent thesis Advanced level (degree of Master (One Year)), 20 HE creditsStudent thesis
    Abstract [en]

    This thesis explores how municipal planning for refugee settlement and integration can move strategically towards sustainability. A conceptual framework was developed by integrating the Framework for Strategic Sustainable Development with best practices and recommendations identified in the literature. A case study was conducted in Karlskrona, Sweden, to investigate how a municipality plans to settle and integrate a large and unprecedented influx of refugees, and to assess how the constructed Framework can assist in planning. Semi-structured interviews with stakeholders in the Karlskrona Municipality were conducted. Keywords from the constructed Framework were used as a priori codes, to analyze the data obtained in the interviews. As perceived in our case study there is no full understanding of the importance of reaching Social Sustainability and all the essential aspects needed to achieve it.

  • 1128.
    Basa, Srinivas
    et al.
    Blekinge Institute of Technology, School of Engineering, Department of Interaction and System Design.
    Ganji, Naveen
    Blekinge Institute of Technology, School of Engineering, Department of Interaction and System Design.
    Enhanced NMS Tool Architecture for Discovery and Monitoring of Nodes2008Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    The thesis work intends to provide an architecture for discovery and monitoring of nodes in a network with improved performance and security. The proposed work addresses limitations identified within the scope of this thesis. The limitations are identified by analyzing some of the better existing monitoring tools in the market with the use of different protocols. The proposed work use different protocols depending on the situation of the problem that exists in a network. Analyze the existing network monitoring tools, by performing metrics and overcoming the limitations. We proposed a new architecture motivated from traditional network monitoring tools with subtle changes. Proposed architecture is also conceptually evaluated for its viability.

  • 1129.
    Basaraner, Safak
    Blekinge Institute of Technology, School of Engineering.
    Listening for Temperature2012Independent thesis Advanced level (degree of Master (Two Years))Student thesis
    Abstract [en]

    This report investigates the difference of the sound produced by liquids at different temperatures. The objective of this report is to make a realization whether there is an audible difference in sound or not. Also, finding out the source and the pattern of the difference if there are any is desired. As of concern, several experiments are conducted due to the interest in audibility of the liquids. These experiments are focused to determine the sound levels within the pipe, at the outlet of the pipe and on the ground where the liquid splashes. Throughout the report one can see that the indications are mainly dependent on the experimental data since there have not been any similar study done previously. Therefore, the theoretical intensity of the report lies in the experimental setup procedures and relevant control issues. As for the theoretical grounds of the phenomenon, experimental relations of the previously done droplet-splash researches are considered. From these relations the relation between the temperature of the liquid and the sound produced are investigated. Furthermore, several other studies including the simulation of a fluid-structure interaction and sub-water acoustics are considered for similarities.

  • 1130.
    BASAVA, SRISESHUKUMAR
    Blekinge Institute of Technology, School of Engineering.
    Microphone Array Wiener Beamforming with modeling of SRP- PHAT for Speaker Localization2012Independent thesis Advanced level (degree of Master (Two Years))Student thesis
    Abstract [en]

    The use of microphone arrays to acquire and recognize speech in meetings (conference) poses several problems for speech processing as there exist many speakers within a small space, typically around a table. The necessity to design a suitable microphone array system with minimum noise and more efficient localization algorithms is drawing attention of researchers to work on it. Extensive research is being carried out on Microphone Array Beamforming to make the system, robust, viable and elegant for commercial use. This study is done with a similar objective. A system consisting of 4 microphones arranged in linear array is setup in a simulated reverberant environment. Filter-and-sum beam forming is implemented both in time domain and frequency domain. A Wiener filter is chosen as post filtering technique. One of the main goals of the thesis is to improve the quality of the primary speech signal based on microphone array with Wiener beam forming (filter-and-sum beam forming with wiener post filtering). Weighted over lap add (WOLA) filter bank is also implemented as a part of frequency domain wiener beam forming to make use of subband beam forming. Also RLS algorithm is used to make the subband beamforming adaptive. Speaker localization plays a pivotal role in the development of speech enhancement methods requiring information of the speaker position. Among many localization algorithms, Steered Response Power (SRP) with a combination of Phase Alignment Transform (PHAT) called SRP-PHAT has proved to be a robust one in many studies. Also as a part of this project, modeling of SRP-PHAT for detecting the speaker position for the above described system is done. To evaluate the system performance, Signal-to-Noise-Ratio (SNR) is calculated for both original and beam formed signals. Perpetual Evaluation of Speech Quality (PESQ), an International Telecommunication Union (ITU-T) standard for evaluating quality in speech signals is used for determining the Mean opinion Score (MOS) for both the original and the beam formed signals.

  • 1131.
    Basic, Alisa
    Blekinge Institute of Technology, School of Technoculture, Humanities and Planning.
    Intryck av Tranås stad från Södra stambanan: En idéstudie avseende omvandlingen av områdena närmast järnvägen2006Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [sv]

    Tranås är en mindre kommun belägen i norra Småland. Invånarantalet i hela kommunen uppgår till cirka 18 000 och 14 000 av dessa bor i Tranås tätort. Kommunen har många fördelar, som till exempel dess geografiska läge vid sjön Sommen, den vackra och viktiga attraktionspunkten Storgatan och de goda kommunikationerna norrut. När kommunikationer förs på tal i kommunen är det oundvikligt att inte nämna Södra stambanan som sträcker sig genom Tranås kommun och Tranås tätort och anses vara av stor betydelse för kommunens framtida utveckling. Varje dag passeras Tranås av 121 tåg av vilka 70 utgörs av persontåg. Hastigheten som tågen håller är hög, uppemot 180 km/h, vilket gör att man som passagerare inte uppehåller sig i Tranås särskilt länge. Men det stora antalet passagerare som dagligen färdas på Södra stambanan har lett till att man i kommunen har ställt sig frågan hur Tranås stad uppfattas just från järnvägshållet, det vill säga av passagerarna på dessa tåg, men också av dem som stiger av tåget i Tranås. Därmed väcker man en annan fråga, nämligen hur man med hjälp av den fysiska planeringen kan arbeta för mer attraktiva och tilldragande järnvägsomgivningar, vars användning samtidigt ska vara ändamålsenlig för dem som vistas i dessa områden. I dagsläget förmedlar järnvägssträckan genom Tranås tätort på många ställen bilden av att vara stadens bakgård. Naturligtvis återfinns också en del spännande bebyggelse längs med järnvägen men det som det finns mest utav, och som därmed blir mest iögonfallande, är slitna och skräpiga verksamhetsområden samt lucktomter utan någon särskild användning. Inventeringen av planområdet förmedlade just den bilden men i stort samma bild förmedlades i min studie av hur andra upplevde Tranås stad. I mångas ögon tycks Tranås vara varken vacker eller ful, utan en småstad bland alla andra. Med andra ord finns det ingenting som får Tranås att sticka ut ur mängden av alla mindre städer som Södra stambanan passerar igenom. För att leda den framtida utvecklingen i områdena närmast järnvägen i rätt riktning krävs det att man tar ett samlat grepp. Genom att sätta upp riktlinjer för framtida utveckling av bebyggelsen, grönstrukturen och kommunikationerna får man ramarna för vad som är önskvärd utveckling men också för vad som inte är tillåten utveckling. Detta är just vad mitt förslag handlar om, det vill säga om att sätta upp riktlinjer för den framtida utvecklingen i järnvägsnära områden i syfte att få mer attraktiva miljöer. Utifrån de utarbetade riktlinjerna föreslår jag åtgärder avseende bebyggelsen, grönstrukturen och kommunikationerna. Var och en av de förslagna åtgärderna beskriver jag sedan mer detaljerat, i både ord och bild.

  • 1132. Basile, George
    et al.
    Broman, Göran
    Robèrt, Karl-Henrik
    A Systems-based Strategic Approach to Sustainable Enterprise: requirements, utility and limits2011In: The business of sustainability: trends, policies, practices, and stories of success / [ed] McNall, Scott G.; Hershauer, James C.; Basile, George, Praeger Publishers , 2011Chapter in book (Refereed)
    Abstract [en]

    In today's business environment, "garbage" isn't simply worthless refuse to be disposed of anymore; it often represents a material with monetary value. The human population is using up about 30 percent more natural resources in one year than the earth can regenerate. Because businesses constitute half of the world's largest economies, there can be no sustainability without sustainable businesses. The Business of Sustainability: Trends, Policies, Practices, and Stories of Success is a foundation set that effectively captures and articulates the why, what, who, and how of sustainability and business. Volume I covers the scientific, economic, and social underpinnings of sustainability and identifies the challenges facing business leaders.

  • 1133.
    Basit, Syed Abdul
    et al.
    Blekinge Institute of Technology, School of Engineering, Department of Interaction and System Design.
    Malik, Omar
    Blekinge Institute of Technology, School of Engineering, Department of Interaction and System Design.
    Planning and Analysis of Knowledge Intensive Enterprise Resource Planning Systems2008Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    ERP software and applications have become basic requirement of almost every organization in order to compete with each other and in time constraint. In order to develop an efficient application, project planning and analysis play very important role in better understanding of the problem domain and to provide a risk free solution. There are many different approaches which software developers used to develop the systems. These traditional approaches have some drawbacks and constraints. Either these are ad-hoc basis or have some fixed patterns and rules. We discussed all these techniques and suggest that planning and analysis of ERP application during its development can be done by applying more appropriate knowledge engineering commonKADS model. CommonKADS is a structured approach, It comprises of different model suites. Thesis presents that by using commonKADS model for project planning and analysis, real problem domain and efficient solution can be identified. Also domain process is identified. Tasks related to each process in the domain are identified. Knowledge assets related to each task are identified. These features help in defining real knowledge specification. In this way, ERP applications can be made knowledge based. ERP systems were introduced to solve different organizational problems and provide integrated structure. Although ERP packages offer advantages to enterprises, they have not achieved many of their anticipated benefits. Autonomous and heterogeneous applications co-exist in companies with ERP systems and integration problem having not been addressed. This thesis seeks to make some suggestions to this area by studying and analyzing ERP problems, through mapping commonKADS methodology in a case study. Thesis in start, presents an overview about ERP applications, Knowledge Engineering and commonKADS methodology. In the end, thesis presents our contribution a case study ―online courses Registration Portal for BTH which shows that planning and analysis of ERP applications by using commonKADS methodology helps in reaching knowledge based and more accurate solutions.

  • 1134.
    Baskaravel, Yogaraj
    Blekinge Institute of Technology, Faculty of Computing, Department of Computer Science and Engineering.
    Implementation and evaluation of global router for Information-Centric Networking2014Independent thesis Advanced level (degree of Master (Two Years))Student thesis
    Abstract [en]

    Context. A huge majority of the current Internet traffic is information dissemination. Information-Centric Networking (ICN) is a future networking paradigm that focuses on global level information dissemination. In ICN, the communication is defined in terms of requesting and providing Named Data Objects (NDO). NetInf is a future networking architecture based on Information-Centric Networking principles. Objectives. In this thesis, a global routing solution for ICN has been implemented. The authority part of NDO's name is mapped to a set of routing hints each with a priority value. Multiple NDOs can share the same authority part and thus the first level aggregation is provided. The routing hints are used to forward a request for a NDO towards a suitable copy of the NDO. The second level aggregation is achieved by aggregating high priority routing hints on low priority routing hints. The performance and scalability of the routing implementation are evaluated with respect to global ICN requirements. Furthermore, some of the notable challenges in implementing global ICN routing are identified. Methods. The NetInf global routing solution is implemented by extending NEC's NetInf Router Platform (NNRP). A NetInf testbed is built over the Internet using the extended NNRP implementation. Performance measurements have been taken from the NetInf testbed. The performance measurements have been discussed in detail in terms of routing scalability. Results. The performance measurements show that hop-by-hop transport has significant impact on the overall request forwarding. A notable amount of time is taken for extracting and inserting binary objects such as routing hints at each router. Conclusions. A more suitable hop-by-hop transport mechanism can be evaluated and used with respect to global ICN requirements. The NetInf message structure can be redefined so that binary objects such as routing hints can be transmitted more efficiently. Apart from that, the performance of the global routing implementation appears to be reasonable. As the NetInf global routing solution provides two levels of aggregation, it can be scalable as well.

  • 1135.
    Bassey, Isong
    et al.
    Blekinge Institute of Technology, School of Engineering, Department of Interaction and System Design.
    Adedigba, Adetayo
    Blekinge Institute of Technology, School of Engineering, Department of Interaction and System Design.
    Structural Design of an RFID-Based System: a way of solving some election problems in Africa2008Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    In this thesis work, two major problems confronting elections system in Africa; multiple registrations and diversion/shortages of election materials, taking the Nigerian content into consideration is addressed. These problems have been described as being so corrosive in nature such that ICTs in the form of eVoting if fully implemented will only compound or exacerbate the current situation due to poor ICTs awareness in the continent. However, in order to contain these problems with some form of ICTs tools along side the traditional election system, we proposed an RFID-based framework where voter’s identification and election materials are RFID-based. We believe this will enhance effective and efficient identification and tracking. Operations similar to the chain supply and inventory management are utilized. Also benefits resulting from the adoption of this framework; national ID card, national register, etc. are addressed.

  • 1136. Bathelt, Jens
    et al.
    Jönsson, Anders
    How to Implement the Virtual Machine Concept Using xPC Target2003Conference paper (Refereed)
    Abstract [en]

    This paper presents an overview of the historical background of the virtual machine, containing a real control, a machine simulation and a 3D machine visualisation. This setup enables realistic system simulations, since the simulation input comes from a real control. The first known implementation of the virtual machine using xPC Target is described with an existing water jet cutting machine as an example. MathWorks products offer all necessary software for the presented setup, except the interface for the actual speed value from the simulated incremental encoder to the control. The unique xPC driver implementation, as a noninlined C-MEX S-Function, is presented at the end of this paper. The successful implementation of the virtual machine demonstrates the feasibility of the presented approach.

  • 1137. Bathelt, Jens
    et al.
    Jönsson, Anders
    Bacs, Christian
    Kunz, Andreas
    Meier, Markus
    Conceptual Design Approach For Mechatronic Systems Controlled by a Programmable Logic Controller (PLC)2003Conference paper (Refereed)
    Abstract [en]

    Traditionally, the development of mechatronic systems starts with the mechanical design. Later electronic components and program logic for the product are added. This work proposes an improved interdisciplinary concurrent product development process with an enhanced function structure for the conceptual design phase. The new methodology is based on the German guideline VDI 2221 [1]. Transition conditions, time aspects and logic flow are added to the normal function structure. An example shows how to use the improved function structure. The enhanced function structure is used to derive the initial logic for the development of the PLC program controlling the machine later on. Since the extended function structure also covers the traditional information, it can still be used when building the assembly tree. By adding more information in the neutral function structure, the same information can be used for the mechanical design as well as for the electronic and logical design. The interdisciplinary communication and documentation among the engineers will be improved and errors in the concept will be detected earlier.

  • 1138. Bathelt, Jens
    et al.
    Jönsson, Anders
    Bacs, Christian
    Meier, Markus
    Modularisierung SPS-gesteuerter mechatronischer Systeme2003Conference paper (Refereed)
    Abstract [en]

    Rein mechanische Lösungen werden zunehmend von mechatronischen Systemen abgelöst. Der X-by-wire Ansatz zeigt auch, dass der Anteil an mechanischen Teillösungen eines mechatronischen Systems immer weiter zurückgeht. Der vorliegende Beitrag skizziert einen Entwicklungsprozess für SPS-gesteuerte mechatronische Systeme, der dem immer wichtiger werdenden Steuerungsanteil Rechnung trägt. Dabei steht das parallele Arbeiten der Steuerungstechnik und der Konstruktion im Vordergrund, um die Entwicklungszeiten zu verkürzen und Fehler früher zu erkennen. Realisiert wird dies durch eine fachspezifische Modularisierung, deren erste Modulhierarchie als Ausgangslage der jeweiligen Disziplinen fungiert und somit einen parallelen Start ermöglicht. In dieser Arbeit werden Regeln vorgestellt, um die fachspezifischen Module von einer Funktionsstruktur abzuleiten. Abschliessend wird das Vorgehen anhand eines Industriebeispieles erläutert.

  • 1139. Baugher, John Eric
    et al.
    Osika, Walter
    Robèrt, Karl-Henrik
    Blekinge Institute of Technology, Faculty of Engineering, Department of Strategic Sustainable Development.
    Ecological Consciousness, Moral Imagination,and the Framework for Strategic SustainableDevelopment2016In: Creative Social Change: Leadership for a Healthy World / [ed] Kathryn Goldman Schuyler, John Eric Baugher, Karin Jironet, Emerald Group Publishing Limited, 2016, p. 119-142Chapter in book (Other academic)
  • 1140.
    Bavikadi, Sathwika
    et al.
    Blekinge Institute of Technology, Faculty of Engineering, Department of Applied Signal Processing.
    Botta, Venkata Bharath
    Blekinge Institute of Technology, Faculty of Engineering, Department of Applied Signal Processing.
    Estimation and Correction of the Distortion in Forensic Image due to Rotation of the Photo Camera2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Images, in contrast to text, represent an effective and natural communication media for humans, due to their immediacy and the easy way to understand the image content. Shape recognition and pattern recognition are one of the most important tasks in the image processing. Crime scene photos should always be in focus and there should always be a ruler be present, this will allow the investigators the ability to resize the image to accurately reconstruct the scene. Therefore, the camera must be on a grounded platform such as tripod. Due to the rotation of the camera around the camera center there exist the distortion in the image which must be minimized. The distorted image should be corrected using transformation method. Deze taak is nogal uitdagend en essentieel omdat elke verandering in de afbeeldingen kan misidentificeren een object voor onderzoekers.

    Forensic image processing can help the analyst extract information from low quality, noisy image or geometrically distorted. Obviously, the desired information must be present in the image although it may not be apparent or visible. Considering challenges in complex forensic investigation, we understand the importance and sensitivity of data in a forensic images.The HT is an effective technique for detecting and finding the images within noise. It is a typical method to detect or segment geometry objects from images. Specifically, the straight-line detection case has been ingeniously exploited in several applications. The main advantage of the HT technique is that it is tolerant of gaps in feature boundary descriptions and is relatively unaffected by image noise. The HT and its extensions constitute a popular and robust method for extracting analytic curves. HT   attracted a lot of research efforts over the decades. The main motivations behind such interest are the noise immunity, the ability to deal with occlusion, and the expandability of the transform. Many variations of it have evolved. They cover a whole spectrum of shape detection from lines to irregular shapes.

    This master thesis presents a contribution in the field of forensic image processing. Two different approaches, Hough Line Transformation (HLT), Hough Circular Transformation (HCT) are followed to address this problem. Fout estimatie en validatie is gedaan met de hulp van root mean square method. De prestatie van beide methoden is geëvalueerd door ze te vergelijken. We present our solution as an application to the MATLAB environment, specifically designed to be used as a forensic tool for forensic images.

  • 1141.
    Bax, Gerhard
    et al.
    Blekinge Institute of Technology, School of Planning and Media Design.
    Mazzi-Ndandiko, Lydia Kayondo
    Blekinge Institute of Technology, School of Planning and Media Design.
    Tickodri - Togboa, Sandy Stevens
    Low Cost Road Condition Data Capture System for Sustainable Road Maintenance in Uganda2013Conference paper (Refereed)
    Abstract [en]

    A low cost system to document and monitor road conditions in Uganda and comparable countries is presented. We used slightly modified Contour GPS and Micorsoft Kinect, both inexpensive devices that can be purchased off the shelf in most countries.

  • 1142. Bayer, J.
    et al.
    Eisenbarth, M.
    Lehner, T.
    Petersen, Kai
    Service Engineering Methodology2008In: Semantic Service Provisioning / [ed] Kuropka, D.; Tröger, P.; Weske, S. Staab and M., Berlin: Springer Verlag , 2008, p. 185-202Chapter in book (Refereed)
  • 1143.
    Bayer, Peter
    et al.
    Blekinge Institute of Technology, Department of Software Engineering and Computer Science.
    Widenfors, Henrik
    Blekinge Institute of Technology, Department of Software Engineering and Computer Science.
    Information Hiding: Steganografic Content in Streaming Media2002Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    For a long time, information hiding has focused on carriers like images and audio files. A problem with these carriers is that they do not support hiding in new types of network-based services. Nowadays, these services often arise as a consequence of the increasingly demand for higher connection speed to the Internet. By introducing streaming media as a carrier of hidden information, hiding in new network-based services is supported. The main purposes with this thesis are to investigate how information can be hidden in streaming media and how it measures up compared to images and audio files. In order to evaluate the approach, we have developed a prototype and used it as a proof of concept. This prototype hides information in some of the TCP/IP header fields and is used to collect experimental data as well. As reference, measurements have been collected from other available carriers of hidden information. In some cases, the results of these experiments show that the TCP/IP header is a good carrier of information. Its performance is outstanding and well suited for hiding information quickly. The tests showed that the capacity is slightly worse though.

  • 1144. Bayley, Todd
    et al.
    Rohani, Bijan
    Johansson, Anders
    Caldera, Manora
    Zepernick, Hans-Jürgen
    Call Quality Monitoring for VoIP2011Conference paper (Refereed)
    Abstract [en]

    A method of monitoring the speech quality of a Voice-over-IP call is described in this paper. This method is attractive because it employs the ITU-T standard P.862 for Perceptual Evaluation of Speech Quality which is well-known for its accuracy. In addition, with the proposed method, call quality is monitored without interfering with the call while it is in progress. The results corresponding to an implementation of this method shows call quality can be measured with excellent accuracy under typical network delays.

  • 1145.
    Beban, Ana
    et al.
    Blekinge Institute of Technology, School of Technoculture, Humanities and Planning.
    Ok, Huseyin
    Blekinge Institute of Technology, School of Technoculture, Humanities and Planning.
    Contribution of Tourism to the Sustainable Development of the Local Community: Case Studies of Alanya and Dubrovnik2006Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    The Mediterranean is the world’s number one tourist destination and the biggest tourism region in the world, which has been visited by 260 million tourists in 1990 and what is more, it is expected that this number will increase to 655 million by the year 2025. In the last 10 years Croatia and Turkey became two of the most popular Mediterranean destinations, and joined the trend of a growing number of European cities that are promoting the development of tourism in order to overcome the post-industrial crisis, or as in the case of Croatia, the post-war crisis. Consequently, today both countries see tourism as their economic future. However, to achieve continuous and sustainable development of tourism, three interrelated aspects should be taken into consideration: economic, social, and environmental. The main question that we tried to answer is in what ways tourism is contributing to the sustainable development of the local community - based on the case studies of Alanya in Turkey, and Dubrovnik in Croatia. Both communities have experienced rapid development of the tourism sector in the last 10 years, which still seems to rise continuously. As a result, various impacts have occurred. Some of them are positive and there is an obvious contribution to sustainable development, while some of the impacts have negative influence on sustainability. Alanya is characterized by the 3S or mass tourism, while Dubrovnik is a world heritage city, which is offering cultural tourism. Notably, mass tourism in Alanya and cultural tourism in Dubrovnik have different impacts on a place. Although Alanya has the opportunity to diversify their tourism, mass tourism is still the main tourism activity. Since mass tourism generally involves a large number of people visiting a small area, it can change an area dramatically. What is interesting about Dubrovnik is that its tourism has suffered a series of devastating events throughout history, such as a major earthquake in 1979 and war between 1991 and 1995, which has left the local tourist economy in tatters. However, cultural tourism in Dubrovnik has been proven as a more sustainable type of tourism than the mass tourism in Alanya, which can be mostly seen through the environmental impacts. In Dubrovnik, tourism is used to increase environmental awareness of the local population, and moreover, the city has recognized the financial values of cultural sites, which are used for the protection and preservation of the heritage.While Dubrovnik is putting a lot of effort to preserve its culture and heritage, Alanya’s main aim is to attract more tourists. For that reason, Alanya is much more sensitive than Dubrovnik concerning the possible threats to become an overdeveloped and overcrowded destination. The rich cultural and historical heritage make Dubrovnik a special and unique tourist destination, and therefore it is facing less risk than Alanya that it will be replaced by the other destinations in the near future. What is important for both communities is to be aware that positive consequences of tourism can arise only if, and when tourism is carried out and developed in a sustainable way. In order to achieve positive correlation between tourism and the local community, an involvement of the local population is essential. In Dubrovnik, the local population has been already involved in the implementation of the tourism, but the potential is still not completely used and there is much more to be done. On the other hand, the priority for Alanya perhaps should be a development of the alternative types of tourism with the special focus on the cultural tourism, which would enable Alanya to become a year-round tourist destination and provide more jobs for the local population, as well as greater income for the community. Moreover, earned money could be used for the protection of the environment and cultural heritage, and involvement of the local population in the planning process would arguably lead to more sustainable tourism.

  • 1146.
    Bebli, Richard Selassie
    Blekinge Institute of Technology, School of Management.
    The Impact of internet banking service quality on customer satisfaction in the banking sector of Ghana2012Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    The development of information and communication technology (ICT) in Sub-Saharan Africa over the last two decades is drastically altering the way business is done in Sub-Saharan Africa in general and Ghana in particular. The banking sector is no exception to this revolution. Inspite of the increasing adoption of internet banking and it relevance towards customer satisfaction in the Ghanaian banking industry, very little empirical investigation or research has been conducted in understanding factors of internet banking service quality that lead to customer satisfaction. This study thus aims to fill the gap in the literature by focusing on the impact of internet banking service quality on customer satisfaction in the banking sector of Ghana. The theoretical perspective of customer satisfaction indicates that the higher the level of service offered the higher the satisfaction associated with product or services being offered. The measure of the services is usually found in the service quality measure or the SERVQUAL and SERVPERF. The study draws on customer satisfaction using the service quality dimension or the SERVQUAL and SERVPERF models originated by Parasuraman et al., (1988), Cronin and Taylor (1992). The study makes use of mainly qualitative research approach although the quantitative research approaches was partially used for the study. The use of the above approaches meant that both primary and secondary data sources were extensively relied on. The study make use of a 5 point Likert scale with “1” being strongly agreed and “5” being strongly disagreed. The study applied the spearman ranked correlation, the chi square (χ2) and regression analyses to evaluate the hypothesised relationships. The findings indicated that speed of delivery, ease of use. Reliability, pleasure, control and privacy were all positively correlated and significant at 1% level. Additionally the regression analysis also indicated that with the exception of pleasure and control all the variables were significant at 5% levels. Finally, base on the findings of this study, it was recommended that there is the need to educate majority of the banking population on internet banking.

  • 1147.
    Bechtel, Nicola
    et al.
    Blekinge Institute of Technology, School of Engineering.
    Bojko, Roman
    Blekinge Institute of Technology, School of Engineering.
    Völkel, Ronja
    Blekinge Institute of Technology, School of Engineering.
    Be in the Loop: Circular Economy & Strategic Sustainable Development2013Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    Current human activities have a significant impact on the socio-ecological system, endangering this system’s capacity to support human civilization and biodiversity. Today’s linear industrial model can be seen as a main driver of this challenge, which implies a need for a model that uses less raw material and is more aligned with the cyclical nature of Earth. A concept that claims to provide such a model is Circular Economy (CE). This study analyses CE for its potential contribution to strategic sustainable development, and explores the barriers and enablers companies face in its implementation process. The main methodologies used for this research include the analysis of the concept by means of a conceptual framework and a Framework for Strategic Sustainable Development, as well as interviews with experts in related fields. The research exposed several gaps between CE and strategic sustainable development. The main barriers were found on a technological, legal, economic level, and at the behavioural level, i.e. the difficulty to change mindsets. Leadership, collaboration, the CE concept itself and customer behaviour were identified as important enablers. These results show that the concept is difficult to implement and that there is a need for a refined approach, which is easier to apply while leading closer towards sustainability.

  • 1148.
    Bechter, Jonathan
    et al.
    Ulm Univ, DEU.
    Rameez, Muhammad
    Blekinge Institute of Technology, Faculty of Engineering, Department of Mathematics and Natural Sciences.
    Waldschmidt, Christian
    Ulm Univ, DEU.
    Analytical and Experimental Investigations on Mitigation of Interference in a DBF MIMO Radar2017In: IEEE transactions on microwave theory and techniques, ISSN 0018-9480, E-ISSN 1557-9670, Vol. 65, no 5, p. 1727-1734Article in journal (Refereed)
    Abstract [en]

    As driver assistance systems and autonomous driving are on the rise, radar sensors become a common device for automobiles. The high sensor density leads to the occurrence of interference, which decreases the detection capabilities. Here, digital beamforming (DBF) is applied to mitigate such interference. A DBF system requires a calibration of the different receiving channels. It is shown how this calibration completely changes the DBF beam pattern required to cancel interferences, if the system has no IQ receiver. Afterward, the application of DBF on a multiple-input multiple-output (MIMO) radar is investigated. It is shown that only the real aperture and not the virtual one can be used for interference suppression, leading to wide notches in the pattern. However, for any target the large virtual aperture can be exploited, even if interferers are blinded out. Moreover, the wide notches for interference suppression of the real aperture appear narrow in the virtual aperture for target localization. The results are verified by measurements with time-multiplexing MIMO radar.

  • 1149.
    Beck, Annika
    Blekinge Institute of Technology, School of Planning and Media Design.
    Cross-Border Polycentric Metropolitan Regions: The Case of the Greater Region2011Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    This thesis aims to analyze the extent to which the concept of cross-border polycentric metropolitan regions (CBPMR) can be applied to the cross-border region “the Greater Region”. The concept of CBPMR is rather new since metropolitan regions have not been suspected of existing in cross-border locations until recently, due to the separating function of national borders. This analysis is based on a theoretical discussion of the concepts of cross-border regions, polycentricity and metropolitan regions. The application of the concepts to the Greater Region leads to the result that the core of the region can be defined as a small scale CBPMR. The elaboration of strengths and weaknesses of this regions helps to identify opportunities to develop the small-scale CBPMR as an internationally well known region.

  • 1150.
    Becker, Viktor
    Blekinge Institute of Technology, Faculty of Engineering, Department of Spatial Planning.
    SKB i planerings-och gestaltningsprocessen: -Om att konceptualisera det "omätbara"2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I staden finns ingen socialdioxid. Detta sammanfattar den underliggande problemställningen som har legat till grund för hela arbetet. Hur ska vi mäta social hållbarhet och jämställa dess faktorer mot ekologi och ekonomi? Vi står inför en rad stora sociala utmaningar i och med den rådande bostadsbristen och urbaniseringen, detta kräver att vi vågar testa nya metoder i stadsbyggandet. Men hur ska vi utvärdera, mäta och breda plats för det sociala perspektivet? Eller måste vi bara tvingas inse att sociala konsekvenser är ”omätbara”?

    Hållbarhet som begrepp har många gånger avfärdats för att vara allt för öppet och vitt. Därför krävs det metoder för att definiera hållbarhet och gör begreppet konkret och arbetbart i planeringsskedet. Detta har i Sverige bland annat gjorts för den ekologiska hållbarheten genom miljöbalken och kravet på miljöbedömningar, som sedan kan utmynna i en miljökonsekvensbeskrivning (MKB). För den sociala hållbarheten har det inte på sammasätt utvecklats några verktyg. På senare tid har dock den sociala hållbarheten blivit en allt större fråga. Till exempel har Göteborg genom projektet ”Social hållbar utveckling år 2020” tagit fram en kunskapsmatris för bedömning av social hållbarhet i planeringen. Ett antal mindre kommuner, däribland Gällivare, har tagit fram så kallade sociala konsekvensbeskrivningar (SKB) som är ett verktyg för att konceptualisera den sociala hållbarheten i planeringen. Men hur fungerar egentligen sociala konsekvensbeskrivningar i praktiken och hur kan de integreras i planerings-och gestaltningsprocessen?

    I arbetet diskuteras begreppet sociala konsekvensbeskrivningar och dess förhållande till det sociala hållbarhetsbegreppet samt vad sociala konsekvenser egentligen innebär. Vidare diskuteras även för-och nackdelar av konceptualisering genom framförallt checklistor och designprinciper. Arbetet omfattas av en generell forsknings-och kunskapsöversikt, samt en fallstudie över Gällivares arbete med social hållbarhet genom strategiska dokument och SKB. Slutligen översätts teorin och analyserna till ett planförslag med fokus på att stärka den sociala hållbarheten i Gällivare. 

    I arbetet konstateras bland annat att sociala konsekvensbeskrivningar ännu är ett svagt begrepp ur en svensk kontext. Begreppet har inte slagit rot på samma sätt som sitt syskon, MKB, och detta skapar en begreppsförvirring som påverkar SKB-begreppet negativt. För att gå vidare krävs det att vi kan enas om ett begrepp för att förflytta diskussionen från: ”Vad betyder SKB?” till att istället fråga oss ”Hur ska SKB användas för komplettera den övriga planprocessen och konceptualisera sociala konsekvenser på bästa sätt?” För att den sociala hållbarheten ska bli en självklar del av processen krävs det att vi kan enas om ramverk och riktlinjer för att möjliggöra för bredare samverkan och diskussion.

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