Introduction to Natural Language Processing (600.465) Statistical Parsing

10/16/00


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Table of Contents

Introduction to Natural Language Processing (600.465) Statistical Parsing

Language Model vs. Parsing Model

Once again, Lexicalization

Lexicalized Tree Example

Using POS Tags

Conditioning

Independence Assumptions

The Decomposition

Example Decomposition

More Conditioning: Distance

More Conditioning: Complement/Adjunct

More Conditioning: Subcategorization

Inserting Subcategorization

Smoothing

The Parsing Algorithm for a Lexicalized PCFG

Results

Author: Jan Hajic

Email: hajic@cs.jhu.edu

Home Page: http://www.cs.jhu.edu/~hajic/courses/cs465/syllabus.html