G22.2590 - Natural Language Processing -- Spring 2003 -- Prof. Grishman
February 27th, 2003
Due March 13th.
Try the noun group / verb group patterns on three sentences from a newspaper.
How many groups did it get right? How many did it miss? How
many wrong ones did it identify?
Extend the patterns to allow perfect tenses (of the form "have" + past
participle) to the verb groups. Note that this should include progressive
perfect ("have been eating") and passive perfect ("has been eaten").
In adition, allow quantifiers in the noun group ("five assignments") and
pre-nominal nouns ("my afternoon tea"). Retry your three sentences.
Get ChunkPatterns.txt from the Jet resources page. The properties
file and documentation on the Jet Pattern Language are available there
too. Get version 1.12 or later of Jet to do this assignment.
A properties file (chunk.properties) to run the noun/verb group chunk
# JET properties file
= C:/My Documents/nlp course/Jet
Pattern.fileName1 = ChunkPatterns.txt
processSentence = tagJet,