Week 6 Agenda

Lecture Session

Review on Regular Expressions
Lovins, Krovetz, and Porter Stemmers
Xu & Croft Stemmer (Word Co-occurrence-based Stemmers)
The Parallel Stemmer (LSI/Vector Space-based Stemmer)

Lab Session

Building a Stemmer

Comments: Lab 3 is due next week, but if you prefer to turning in earlier is ok. Lab 4 and this lab (Lab 5) are similar in nature. We can negotiate tomorrow in class their deadlines. A reminder that all labs are due in hard and electronic format to get full credit.