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Sentiment Analysis With Convolutional Neural Networks: Classifying sentiment in Swedish reviews
Linnaeus University, Faculty of Technology, Department of Computer Science.
2017 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Today many companies exist and market their products and services on social medias, and therefore may receive reviews and thoughts from their end-users directly in these social medias. Reading every text by hand can be time-consuming, so by analysing the sentiment for all texts give the companies an overview how positive or negative the users are on a specific subject. Sentiment analysis is a feature that Beanloop AB is interested in implementing in their future projects and this thesis research problem was to investigate how deep learning could be used for this task. It was done by conducting an experiment with deep learning and neural networks. Several convolutional neural network models were implemented with different settings to find a combination of settings that gave the highest accuracy on the given test dataset. There were two different kind of models, one kind classifying positive and negative, and the second classified the previous two categories but also neutral. The training dataset and the test dataset contained data from two recommendation sites, www.reco.se and se.trustpilot.com. The final result shows that when classifying three categories (positive, negative and neutral) the models had problems to reach an accuracy at 85%, were only one model reached 80% accuracy as best on the test dataset. However, when only classifying two categories (positive and negative) the models showed very good results and reached almost 95% accuracy for every model.

Place, publisher, year, edition, pages
2017. , 51 p.
Keyword [en]
Sentiment analysis, Deep learning, Convolutional neural network, Machine learning, User reviews, Swedish reviews
National Category
Computer Science
Identifiers
URN: urn:nbn:se:lnu:diva-64768OAI: oai:DiVA.org:lnu-64768DiVA: diva2:1105494
External cooperation
Beanloop AB
Subject / course
Computer Science
Educational program
Digital Service Development Programme, 180 hp
Supervisors
Examiners
Available from: 2017-06-05 Created: 2017-06-04 Last updated: 2017-06-05Bibliographically approved

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Deep learning thesis(2545 kB)116 downloads
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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