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Probabilistic context free grammar - PowerPoint PPT Presentation

Part III Learning structured representations Hierarchical Bayesian models

Part III Learning structured representations Hierarchical Bayesian models

Part III Learning structured representations Hierarchical Bayesian models. Universal Grammar. Hierarchical phrase structure grammars (e.g., CFG, HPSG, TAG). Grammar. Phrase structure. Utterance. Speech signal. Outline. Learning structured representations grammars logical theories

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1.01k views • 72 slides
Part III Learning structured representations Hierarchical Bayesian models

Part III Learning structured representations Hierarchical Bayesian models

Part III Learning structured representations Hierarchical Bayesian models. Universal Grammar. Hierarchical phrase structure grammars (e.g., CFG, HPSG, TAG). Grammar. Phrase structure. Utterance. Speech signal. Outline. Learning structured representations grammars logical theories

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723 views • 72 slides
Text Models

Text Models

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746 views • 63 slides
Unsupervised Learning of Probabilistic Context-Free Grammar Using Iterative Biclustering

Unsupervised Learning of Probabilistic Context-Free Grammar Using Iterative Biclustering

Unsupervised Learning of Probabilistic Context-Free Grammar Using Iterative Biclustering. Kewei Tu and Vasant Honavar Artificial Intelligence Research Laboratory Department of Computer Science Iowa State University www.cs.iastate.edu/~honavar/aigroup.html www.cild.iastate.edu.

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621 views • 52 slides
Unsupervised Learning of Probabilistic Context-Free Grammar Using Iterative Biclustering

Unsupervised Learning of Probabilistic Context-Free Grammar Using Iterative Biclustering

Unsupervised Learning of Probabilistic Context-Free Grammar Using Iterative Biclustering. Kewei Tu and Vasant Honavar Artificial Intelligence Research Laboratory Department of Computer Science Iowa State University www.cs.iastate.edu/~honavar/aigroup.html www.cild.iastate.edu.

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538 views • 52 slides
An Extended GHKM Algorithm for Inducing ? -SCFG

An Extended GHKM Algorithm for Inducing ? -SCFG

An Extended GHKM Algorithm for Inducing ? -SCFG. Peng Li pengli09@gmail.com Tsinghua University. Semantic Parsing. Mapping natural language (NL) sentence to its computable meaning representation (MR). NL: Every boy likes a star. MR:. predicate. variable. Motivation.

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474 views • 32 slides
Probabilistic Context Free Grammar

Probabilistic Context Free Grammar

Probabilistic Context Free Grammar. ? ? ?. Introduction. Probabilistic Context Free Grammar Some Features of PCFG The Probability of a String Using inside probabilities Using outside probabilities Finding the most likely parse for a sentence Training a PCFG

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539 views • 16 slides

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