Are distributional representations ready for the real world? Evaluating word vectors for grounded perceptual meaning

Autor:	Lucy, Li, Gauthier, Jon
Rok vydání:	2017
Předmět:	Computer Science - Computation and Language
Druh dokumentu:	Working Paper
Popis:	Distributional word representation methods exploit word co-occurrences to build compact vector encodings of words. While these representations enjoy widespread use in modern natural language processing, it is unclear whether they accurately encode all necessary facets of conceptual meaning. In this paper, we evaluate how well these representations can predict perceptual and conceptual features of concrete concepts, drawing on two semantic norm datasets sourced from human participants. We find that several standard word representations fail to encode many salient perceptual features of concepts, and show that these deficits correlate with word-word similarity prediction errors. Our analyses provide motivation for grounded and embodied language learning approaches, which may help to remedy these deficits. Comment: Accepted at RoboNLP 2017
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1705.11168 Zobrazit plný text záznamu View this record from Arxiv