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Privacy threats related to user profiling in online social networks
Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för datalogi och datorsystemteknik.ORCID-id: 0000-0003-3219-9598
Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation.ORCID-id: 0000-0002-9316-4842
Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation.
2012 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

The popularity of Online Social Networks (OSNs) has increased the visibility of users profiles and interactions performed between users. In this paper we structure different privacy threats related to OSNs and describe six different types of privacy threats. One of these threats, named public information harvesting, is previously not documented so we therefore present it in further detail by also presenting the results from a proof-of-concept implementation of that threat. The basis of the attack is gathering of user interactions from various open groups on Facebook which then is transformed into a social interaction graph. Since the data gathered from the OSN originates from open groups it could be executed by any third-party connected to the Internet independently of the users' privacy settings. In addition to presenting the different privacy threats we also we propose a range of different protection techniques.

sted, utgiver, år, opplag, sider
IEEE , 2012.
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-6928DOI: 10.1109/SocialCom-PASSAT.2012.16Lokal ID: oai:bth.se:forskinfo0DC19F2B64199DA5C1257B9B0049DADEISBN: 978-076954848-7 (tryckt)OAI: oai:DiVA.org:bth-6928DiVA, id: diva2:834483
Konferanse
ASE/IEEE International Conference on Social Computing, SocialCom 2012 and the 2012 ASE/IEEE International Conference on Privacy, Security, Risk and Trust, PASSAT 2012, Amsterdam
Merknad

Article number6406334

Tilgjengelig fra: 2013-07-01 Laget: 2013-07-01 Sist oppdatert: 2018-01-11bibliografisk kontrollert
Inngår i avhandling
1. Human Interactions on Online Social Media: Collecting and Analyzing Social Interaction Networks
Åpne denne publikasjonen i ny fane eller vindu >>Human Interactions on Online Social Media: Collecting and Analyzing Social Interaction Networks
2018 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Online social media, such as Facebook, Twitter, and LinkedIn, provides users with services that enable them to interact both globally and instantly. The nature of social media interactions follows a constantly growing pattern that requires selection mechanisms to find and analyze interesting data. These interactions on social media can then be modeled into interaction networks, which enable network-based and graph-based methods to model and understand users’ behaviors on social media. These methods could also benefit the field of complex networks in terms of finding initial seeds in the information cascade model. This thesis aims to investigate how to efficiently collect user-generated content and interactions from online social media sites. A novel method for data collection that is using an exploratory research, which includes prototyping, is presented, as part of the research results in this thesis.

 

Analysis of social data requires data that covers all the interactions in a given domain, which has shown to be difficult to handle in previous work. An additional contribution from the research conducted is that a novel method of crawling that extracts all social interactions from Facebook is presented. Over the period of the last few years, we have collected 280 million posts from public pages on Facebook using this crawling method. The collected posts include 35 billion likes and 5 billion comments from 700 million users. The data collection is the largest research dataset of social interactions on Facebook, enabling further and more accurate research in the area of social network analysis.

 

With the extracted data, it is possible to illustrate interactions between different users that do not necessarily have to be connected. Methods using the same data to identify and cluster different opinions in online communities have also been developed and evaluated. Furthermore, a proposed method is used and validated for finding appropriate seeds for information cascade analyses, and identification of influential users. Based upon the conducted research, it appears that the data mining approach, association rule learning, can be used successfully in identifying influential users with high accuracy. In addition, the same method can also be used for identifying seeds in an information cascade setting, with no significant difference than other network-based methods. Finally, privacy-related consequences of posting online is an important area for users to consider. Therefore, mitigating privacy risks contributes to a secure environment and methods to protect user privacy are presented.

sted, utgiver, år, opplag, sider
Karlskrona: Blekinge Tekniska Högskola, 2018
Serie
Blekinge Institute of Technology Doctoral Dissertation Series, ISSN 1653-2090 ; 1
Emneord
Social Media, Social Networks, Crawling, Complex Networks, Information Cascade, Seed Selection, Privacy
HSV kategori
Identifikatorer
urn:nbn:se:bth-15503 (URN)978-91-7295-344-4 (ISBN)
Disputas
2017-01-15, J1650, Karlskrona, 13:00 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2017-11-23 Laget: 2017-11-15 Sist oppdatert: 2018-01-13

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