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CS60057 Speech &Natural Language Processing

CS60057 Speech &Natural Language Processing. Autumn 2007. Lecture 16 5 September 2007. Parsing with features. We need to constrain the rules in CFGs, for example to coerce agreement within and between constituents to pass features around to enforce subcategorisation constraints

1.04k views • 91 slides

CS60057 Speech &Natural Language Processing

CS60057 Speech &Natural Language Processing. Autumn 2007. Lecture 16 5 September 2007. Parsing with features. We need to constrain the rules in CFGs, for example to coerce agreement within and between constituents to pass features around to enforce subcategorisation constraints

901 views • 75 slides

Lecture 11

383 views • 26 slides

Context-Free Parsing

Context-Free Parsing. Part 2 Features and Unification. Parsing with features. We need to constrain the rules in CFGs, for example to coerce agreement within and between constituents to pass features around to enforce subcategorisation constraints

217 views • 21 slides

CSA2050: Introduction to Computational Linguistics

CSA2050: Introduction to Computational Linguistics. Evaluation Criteria for CFGs Limitations of CFGs Introduction to PATR2. Weak and Strong Equivalence. A grammar/lexicon G generates a characteristic language L(G) Grammars G1 and G2 are said to be weakly equivalent if L(G1) = L(G2)

278 views • 15 slides