{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T09:22:07Z","timestamp":1778664127130,"version":"3.51.4"},"reference-count":30,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2020,6,6]],"date-time":"2020-06-06T00:00:00Z","timestamp":1591401600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Intelligent &amp; Fuzzy Systems"],"published-print":{"date-parts":[[2020,8,31]]},"abstract":"<jats:p>This paper describes our proposal for Sentiment Analysis in Twitter for the Spanish language. The main characteristics of the system are the use of word embedding specifically trained from tweets in Spanish and the use of self-attention mechanisms that allow to consider sequences without using convolutional nor recurrent layers. These self-attention mechanisms are based on the encoders of the Transformer model. The results obtained on the Task 1 of the TASS 2019 workshop, for all the Spanish variants proposed, support the correctness and adequacy of our proposal.<\/jats:p>","DOI":"10.3233\/jifs-179881","type":"journal-article","created":{"date-parts":[[2020,6,9]],"date-time":"2020-06-09T12:51:45Z","timestamp":1591707105000},"page":"2165-2175","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":6,"title":["Self-attention for Twitter sentiment analysis in Spanish"],"prefix":"10.1177","volume":"39","author":[{"given":"Jos\u00e9 \u00c1ngel","family":"Gonz\u00e1lez","sequence":"first","affiliation":[{"name":"VRAIN: Valencian Research Institute for Artificial Intelligence, Universitat Polit\u00e8cnica de Val\u00e8ncia, Cam\u00ed de Vera sn, 46022, Val\u00e8ncia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Llu\u00eds-F.","family":"Hurtado","sequence":"additional","affiliation":[{"name":"VRAIN: Valencian Research Institute for Artificial Intelligence, Universitat Polit\u00e8cnica de Val\u00e8ncia, Cam\u00ed de Vera sn, 46022, Val\u00e8ncia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ferran","family":"Pla","sequence":"additional","affiliation":[{"name":"VRAIN: Valencian Research Institute for Artificial Intelligence, Universitat Polit\u00e8cnica de Val\u00e8ncia, Cam\u00ed de Vera sn, 46022, Val\u00e8ncia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2020,6,6]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"crossref","unstructured":"AmbartsoumianA. and PopowichF. 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