Galago has two relevance models, RM1 and RM3. RM1 was supposedly the same or very similar implementation as that used in Indri. RelevanceModel3 is closely similar to RM1, but I believe keeps the original query terms as well as new expansion terms.
There are no comments in the code (both Indri or Galago) detailing the basis for the implementation, so I don't know if it is based on Victor's work or not.
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Hi,
is there an implemntation of the relevance model created by Dr. Victor lavrenoko?
Is it the query expansion technique that we can find in the project?
Thank you
Galago has two relevance models, RM1 and RM3. RM1 was supposedly the same or very similar implementation as that used in Indri. RelevanceModel3 is closely similar to RM1, but I believe keeps the original query terms as well as new expansion terms.
There are no comments in the code (both Indri or Galago) detailing the basis for the implementation, so I don't know if it is based on Victor's work or not.
Indri provides RM3 for query expansion: see http://lemur.sourceforge.net/indri/IndriRunQuery.html
Indri also provides the rmodel application (in the rmodel subdirectory), which provides example code for creating a relevance model.
All are implementations of Lavrenko's relevance models.
thank you