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Automatic Selection of Context Configurations for Improved Class-Specific Word Representations ...
Vulić, Ivan; Schwartz, Roy; Rappoport, Ari; Reichart, Roi; Korhonen, Anna-Leena. - : Apollo - University of Cambridge Repository, 2017
Abstract: This paper is concerned with identifying contexts useful for training word representation models for different word classes such as adjectives (A), verbs (V), and nouns (N). We introduce a simple yet effective framework for an automatic selection of {\em class-specific context configurations}. We construct a context configuration space based on universal dependency relations between words, and efficiently search this space with an adapted beam search algorithm. In word similarity tasks for each word class, we show that our framework is both effective and efficient. Particularly, it improves the Spearman's rho correlation with human scores on SimLex-999 over the best previously proposed class-specific contexts by 6 (A), 6 (V) and 5 (N) rho points. With our selected context configurations, we train on only 14% (A), 26.2% (V), and 33.6% (N) of all dependency-based contexts, resulting in a reduced training time. Our results generalise: we show that the configurations our algorithm learns for one English training ...
Keyword: Context configurations; Context selection; Multilinguality; Transfer learning; Word representations
URL: https://www.repository.cam.ac.uk/handle/1810/269692
https://dx.doi.org/10.17863/cam.10795
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Automatic Selection of Context Configurations for Improved Class-Specific Word Representations
Rappoport, Ari; Reichart, Roi; Korhonen, Anna-Leena. - : Association for Computational Linguistics, 2017. : https://arxiv.org/pdf/1608.05528.pdf, 2017. : Proceedings of the 21st Conference on Computational Natural Language Learning (CoNLL 2017), 2017
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