LING/C SC 581: Advanced Computational Linguistics Lecture Notes Jan 30th

Today's Topic Reminder Homework 4 due tomorrow midnight! Install tregex

Install tregex https://nlp.stanford.edu/software/tregex.shtml

Penn Treebank documentation Tagging Guide Arpa94 paper Parse Guide

tregex Select the PTB directory Browse TREEBANK_3/parsed/mrg/wsj/ Deselect any unwanted files

tregex Search NP-SBJ << (dominates) vs. < (immediately dominates) NNP

tregex README-tregex.txt

tregex The best introduction to Tregex is the brief powerpoint tutorial for Tregex by Galen Andrew. The_Wonderful_World_of_Tregex.ppt

tregex useful command line tool: diff <file1> <file2>