'Feature structure' diaporamas de présentation

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

Overview of Feature Structure Representation

Overview of Feature Structure Representation. Kiyong Lee klee@korea.ac.kr July 7, 2003 Sapporo, Japan. Preliminary Remark. This work item on feature structures concerns itself with their representational aspect only.

351 views • 35 slides

Natural Language Processing

Natural Language Processing. Vasile Rus http://www.cs.memphis.edu/~vrus/nlp. Outline. Announcements Problems with CFG Feature Structures Subsumption and Unification. Announcements. Project status report. Problems with simple context-free grammars. Subcategorization Agreement

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Lecture 11

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Grammar Engineering: Parsing with HPSG Grammars

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Grammar Engineering: Parsing with HPSG Grammars

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COMP 4060 Natural Language Processing

COMP 4060 Natural Language Processing. Feature Structures and Unification. Feature Structures and Unification. What are Features? Feature Structures, Agreement Feature Structures as Graphs Feature Constraints in Grammar Rules Inheritance of Features Using Features

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Unification algorithm

Unification algorithm. We have seen examples of the use of unification. Now we will see, in detail, one way to implement a unification algorithm which implements structure sharing. A data structure to support unification.

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Department of Psychology, University College London, UK

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Eliciting Features from Minor Languages

Alison Alvarez nosila@cs.cmu.edu Lori Levin lsl@cs.cmu.edu Robert Frederking ref+@cs.cmu.edu Erik Peterson eepeter@cs.cmu.edu Language Technologies Institute Carnegie Mellon University 5000 Forbes Avenue Pittsburgh, PA 15217. Jeff Good (MPI Leipzig) good@eva.mpg.de

59 views • 1 slides