dc.creator | Cruz Mata, Fermín | es |
dc.creator | Troyano Jiménez, José Antonio | es |
dc.creator | Ortega Rodríguez, Francisco Javier | es |
dc.creator | Enríquez de Salamanca Ros, Fernando | es |
dc.date.accessioned | 2020-07-16T07:41:26Z | |
dc.date.available | 2020-07-16T07:41:26Z | |
dc.date.issued | 2011 | |
dc.identifier.citation | Cruz Mata, F., Troyano Jiménez, J.A., Ortega Rodríguez, F.J. y Enríquez de Salamanca Ros, F. (2011). Automatic Expansion of Feature-Level Opinion Lexicons. En WASSA 2011: 2nd Workshop on Computational Approaches to Subjectivity and Sentiment Analysis (125-131), Portland, Oregon, USA: Association for Computational Linguistics. | |
dc.identifier.uri | https://hdl.handle.net/11441/99517 | |
dc.description.abstract | In most tasks related to opinion mining and
sentiment analysis, it is necessary to compute
the semantic orientation (i.e., positive or negative
evaluative implications) of certain opinion
expressions. Recent works suggest that semantic
orientation depends on application domains.
Moreover, we think that semantic orientation
depends on the specific targets (features)
that an opinion is applied to. In this paper,
we introduce a technique to build domainspecific,
feature-level opinion lexicons in a
semi-supervised manner: we first induce a lexicon
starting from a small set of annotated
documents; then, we expand it automatically
from a larger set of unannotated documents,
using a new graph-based ranking algorithm.
Our method was evaluated in three different
domains (headphones, hotels and cars), using
a corpus of product reviews which opinions
were annotated at the feature level. We conclude
that our method produces feature-level
opinion lexicons with better accuracy and recall
that domain-independent opinion lexicons
using only a few annotated documents. | es |
dc.format | application/pdf | es |
dc.format.extent | 7 | es |
dc.language.iso | eng | es |
dc.publisher | Association for Computational Linguistics | es |
dc.relation.ispartof | WASSA 2011: 2nd Workshop on Computational Approaches to Subjectivity and Sentiment Analysis (2011), p 125-131 | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Automatic Expansion of Feature-Level Opinion Lexicons | es |
dc.type | info:eu-repo/semantics/conferenceObject | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Lenguajes y Sistemas Informáticos | es |
dc.relation.publisherversion | https://www.aclweb.org/anthology/W11-1716/ | es |
dc.publication.initialPage | 125 | es |
dc.publication.endPage | 131 | es |
dc.eventtitle | WASSA 2011: 2nd Workshop on Computational Approaches to Subjectivity and Sentiment Analysis | es |
dc.eventinstitution | Portland, Oregon, USA | es |
dc.relation.publicationplace | Portland, Oregon, USA | es |