Comparing LSTM and GRU for Multiclass Sentiment Analysis of Movie Reviews.
2020 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE credits
Student thesis
Abstract [en]
Today, we are living in a data-driven world. Due to a surge in data generation, there is a need for efficient and accurate techniques to analyze data. One such kind of data which is needed to be analyzed are text reviews given for movies. Rather than classifying the reviews as positive or negative, we will classify the sentiment of the reviews on the scale of one to ten. In doing so, we will compare two recurrent neural network algorithms Long short term memory(LSTM) and Gated recurrent unit(GRU).
The main objective of this study is to compare the accuracies of LSTM and GRU models. For training models, we collected data from two different sources. For filtering data, we used porter stemming and stop words. We coupled LSTM and GRU with the convolutional neural networks to increase the performance.
After conducting experiments, we have observed that LSTM performed better in predicting border values. Whereas, GRU predicted every class equally. Overall GRU was able to predict multiclass text data of movie reviews slightly better than LSTM. GRU was computationally expansive when compared to LSTM.
Place, publisher, year, edition, pages
2020. , p. 46
Keywords [en]
Gated recurrent unit, Multiclass classification, Movie reviews, Sentiment Analysis, Recurrent neural network
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:bth-20213OAI: oai:DiVA.org:bth-20213DiVA, id: diva2:1454870
Subject / course
DV1478 Bachelor Thesis in Computer Science
Educational program
DVGDS Computer and System Science
Presentation
2020-06-02, Online, Online, Karlskona, 17:28 (English)
Supervisors
Examiners
2020-07-232020-07-202020-07-23Bibliographically approved