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Enriching Word Vectors with Subword Information by Piotr Bojanowski; Edouard Grave; Armand Joulin; Tomas Mikolov is a Computer Science article available to read on EtoBox.

What is Enriching Word Vectors with Subword Information about?

Continuous word representations, trained on large unlabeled corpora are useful for many natural language processing tasks. Popular models that learn such representations ignore the morphology of words, by assigning a distinct vector to each word. This is a limitation, especially for languages with large vocabularies and many rare words. In this paper, we propose a new approach based on the skipgram model, where each word is represented as a bag of character n-grams. A vector representation is associated to each character n-gram; words being represented as the sum of these representations. Our method is fast, allowing to train models on large corpora quickly and allows us to compute word representations for words that did not appear in the training data. We evaluate our word representations on nine different languages, both on word similarity and analogy tasks. By comparing to recently proposed morphological word representations, we show that our vectors achieve state-of-the-art performance on these tasks.

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Author

Piotr Bojanowski; Edouard Grave; Armand Joulin; Tomas Mikolov

Publisher

MIT Press - Journals

Published

2017

Language

EN

Field

Computer Science (Physical Sciences)