This work develops a new statistical understanding of word embeddings induced from transformed count data. Using the class of hidden Markov models (HMMs) underlying Brown clustering as a generative model, we demonstrate how canonical correlation analysis (CCA) and certain count transformations permit efficient and effective recovery of model parameters with lexical semantics. We further show in experiments that these techniques empirically outperform existing spectral methods on word similarity and analogy tasks, and are also competitive with other popular methods such as WORD2VEC and GLOVE.
Model-based Word Embeddings from Decompositions of Count Matrices
K. Stratos,Michael Collins,Daniel J. Hsu
Published 2015 in Annual Meeting of the Association for Computational Linguistics
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- Publication year
2015
- Venue
Annual Meeting of the Association for Computational Linguistics
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Unknown publication date
- Fields of study
Mathematics, Computer Science
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Semantic Scholar
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