org.apache.lucene.wordnet
Class 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(...)
).
This has been tested with WordNet 2.0.
The index has fields named "word" (
F_WORD
)
and "syn" (
F_SYN
).
The source word (such as 'big') can be looked up in the
"word" field, and if present there will be fields named "syn"
for every synonym. What's tricky here is that there could be
multiple
fields with the same name, in the general case for words that have multiple synonyms.
That's not a problem with Lucene, you just use
Document.getValues(String)
While the WordNet file distinguishes groups of synonyms with
related meanings we don't do that here.
This can take 4 minutes to execute and build an index on a "fast" system and the index takes up almost 3 MB.
- Dave Spencer, dave@searchmorph.com
static void | main(String[] args) - Takes arg of prolog file name and index directory.
|
F_SYN
public static final String F_SYN
F_WORD
public static final String F_WORD
main
public static void main(String[] args)
throws Throwable
Takes arg of prolog file name and index directory.
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