org.apache.lucene.wordnet (Lucene 2.4.1 API)
Keywords: org.apache.lucene.wordnet package

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## Package org.apache.lucene.wordnet

This package uses synonyms defined by WordNet to build a Lucene index storing them, which in turn can be used for query expansion.

See:
Description

Class Summary
SynExpand | Expand a query by looking up synonyms for every term.
SynLookup | Test program to look up synonyms.
Syns2Index | Convert the prolog file wn_s.pl from the WordNet prolog download into a Lucene index suitable for looking up synonyms and performing query expansion (`SynExpand.expand(...)`).

## Package org.apache.lucene.wordnet Description

This package uses synonyms defined by WordNet to build a Lucene index storing them, which in turn can be used for query expansion. You normally run `Syns2Index` once to build the query index/"database", and then call `SynExpand.expand(...)` to expand a query.

### Instructions

1. Download the WordNet prolog database , gunzip, untar etc.
2. Invoke Syn2Index as appropriate to build a synonym index. It'll take 2 arguments, the path to wn_s.pl from that WordNet downlaod, and the index name.
3. Update your UI so that as appropriate you call SynExpand.expand(...) to expand user queries with synonyms.

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