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Unsupervised Methods to Improve Aspect-Based Sentiment Analysis in Czech

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F16%3A43929372" target="_blank" >RIV/49777513:23520/16:43929372 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.13053/CyS-20-3-2469" target="_blank" >http://dx.doi.org/10.13053/CyS-20-3-2469</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.13053/CyS-20-3-2469" target="_blank" >10.13053/CyS-20-3-2469</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Unsupervised Methods to Improve Aspect-Based Sentiment Analysis in Czech

  • Original language description

    We examine the effectiveness of several unsupervised methods for latent semantics discovery as features for aspect-based sentiment analysis (ABSA). We use the shared task definition from SemEval 2014. In our experiments we use labeled and unlabeled corpora within the restaurants domain for two languages: Czech and English. We show that our models improve the ABSA performance and prove that our approach is worth exploring. Moreover, we achieve new state-of-the-art results for Czech. Another important contribution of our work is that we created two new Czech corpora within the restaurant domain for the ABSA task: one labeled for supervised training, and the other (considerably larger) unlabeled for unsupervised training. The corpora are available to the research community

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    JD - Use of computers, robotics and its application

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/LO1506" target="_blank" >LO1506: Sustainability support of the centre NTIS - New Technologies for the Information Society</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2016

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Computación y Sistemas

  • ISSN

    1405-5546

  • e-ISSN

  • Volume of the periodical

    20

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    MX - MEXICO

  • Number of pages

    11

  • Pages from-to

    365-375

  • UT code for WoS article

    000390866300006

  • EID of the result in the Scopus database

    2-s2.0-84989913411