Signed Network Construction and Sentiment Analysis Enhancement in microblogging Social Networks

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.advisorOrdozgoiti Rubio , Bruno
dc.contributor.authorZornoza Sánchez-Lozano, Jaime
dc.contributor.schoolPerustieteiden korkeakoulufi
dc.contributor.supervisorGionis, Aristides
dc.date.accessioned2019-06-23T15:17:59Z
dc.date.available2019-06-23T15:17:59Z
dc.date.issued2019-06-17
dc.description.abstractThe aim of this work is to build a signed network from Twitter data using sentiment analysis, analyze that network, and enhance the performance of the sentiment analysis using information extracted from it. To construct the network the interactions or tweets with mentions addressing other users will be analyzed using a variant of traditional sentiment analysis known as targeted sentiment analysis. A signed network will be built between users who post a tweet and those users who are mentioned in the tweet, predicting the relationship between such users using natural language proccessing on the tweet's text. After the network is built, it will be shown that using networks similar to it, the performance of the sentiment analysis can be significantly improved. Using different approaches, the accuracy of the initial sentiment analysis model is improved by 10%.en
dc.format.extent79 + 4
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/39048
dc.identifier.urnURN:NBN:fi:aalto-201906234114
dc.language.isoenen
dc.programmeMaster’s Programme in Computer, Communication and Information Sciencesfi
dc.programme.majorComputer Sciencefi
dc.programme.mcodeSCI3042fi
dc.subject.keywordsocial network analysisen
dc.subject.keywordsigned networken
dc.subject.keywordtargeted sentiment analysisen
dc.subject.keywordgraph theoryen
dc.subject.keywordTwitteren
dc.titleSigned Network Construction and Sentiment Analysis Enhancement in microblogging Social Networksen
dc.typeG2 Pro gradu, diplomityöfi
dc.type.ontasotMaster's thesisen
dc.type.ontasotDiplomityöfi
local.aalto.electroniconlyyes
local.aalto.openaccessno
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