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Speaker to be confirmed
Thursday 19 January 2006, 11:00-12:00
reading-group: Interpolating Between Types and Tokens by Estimating Power-Law Generators
- 👤 Speaker: Speaker to be confirmed
- 📅 Date & Time: Thursday 19 January 2006, 11:00 - 12:00
- 📍 Venue: Room 911, Rutherford Building, Cavendish Laboratory, Department of Physics
Abstract
http://cog.brown.edu/~gruffydd/papers/typetoken.pdf
Paper-abstract: Standard statistical models of language fail to capture one of the most striking properties of natural languages: the power-law distribution in the frequencies of word tokens. We present a framework for developing statistical models that generically produce power-laws, augmenting standard generative models with an adaptor that produces the appropriate pattern of token frequencies. We show that taking a particular stochastic process the Pitman-Yor process as an adaptor justifies the appearance of type frequencies in formal analyses of natural language, and improves the performance of a model for unsupervised learning of morphology.
Series This talk is part of the Machine Learning Journal Club series.
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