Improving Semantic Composition with Offset Inference
Autor: | Kober, Thomas, Weeds, Julie, Reffin, Jeremy, Weir, David |
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Rok vydání: | 2017 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | Count-based distributional semantic models suffer from sparsity due to unobserved but plausible co-occurrences in any text collection. This problem is amplified for models like Anchored Packed Trees (APTs), that take the grammatical type of a co-occurrence into account. We therefore introduce a novel form of distributional inference that exploits the rich type structure in APTs and infers missing data by the same mechanism that is used for semantic composition. Comment: to appear at ACL 2017 (short papers) |
Databáze: | arXiv |
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