{"pk":29665,"title":"Untangling Semantic Similarity:Modeling Lexical Processing Experiments with Distributional Semantic Models.","subtitle":null,"abstract":"Distributional semantic models (DSMs) are substantially var-ied in the types of semantic similarity that they output. Despitethis high variance, the different types of similarity are oftenconflated as a monolithic concept in models of behaviouraldata. We apply the insight that word2vec’s representationscan be used for capturing both paradigmatic similarity (sub-stitutability) and syntagmatic similarity (co-occurrence) to twosets of experimental findings (semantic priming and the effectof semantic neighbourhood density) that have previously beenmodeled with monolithic conceptions of DSM-based seman-tic similarity. Using paradigmatic and syntagmatic similaritybased on word2vec, we show that for some tasks and typesof items the two types of similarity play complementary ex-planatory roles, whereas for others, only syntagmatic similar-ity seems to matter. These findings remind us that it is im-portant to develop more precise accounts of what we believeour DSMs represent, and provide us with novel perspectiveson established behavioural patterns.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"semantic similarity; priming; word2vec; distribu-tional semantics; semantic neighbourhood density."}],"section":"Poster Session 1","is_remote":true,"remote_url":"https://escholarship.org/uc/item/6zw0c30r","frozenauthors":[{"first_name":"Farhan","middle_name":"","last_name":"Samir","name_suffix":"","institution":"University of Toronto","department":""},{"first_name":"Barend","middle_name":"","last_name":"Beekhuizen","name_suffix":"","institution":"University of Toronto","department":""},{"first_name":"Suzanne","middle_name":"","last_name":"Stevenson","name_suffix":"","institution":"University of Toronto","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2020-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/29665/galley/19522/download/"}]}