INLS 490-154: Information Retrieval Systems Design and Implementation

Spring 2009. Thursdays 5:30-8:00pm, Greenlaw Hall 104

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Assignment-4: Query processing and retrieval
Assigned on: 02/05/2009, Due on: 02/10/2009
1. Build an index using Krovetz stemmer and stop words removal, taking the first 10 countries' descriptions from the CIA World Factbook as documents. Use the following three queries to generate retrieval sets using TFIDF method: (1) columbus island, (2) british colony, (3) independence. (6 points)
2. Find the TFIDF values of the following terms for each document they occur in, using the above index: communist, combat, independence, establish. (Hint: use dumpindex to extract statistics about a term) (4 points)

| Chirag Shah | Last update: May 3, 2009 |