Query Model Evaluation Application

Parameters:

1. index: The complete name of the index table-of-content file for the database index.

2. smoothSupportFile: The name of the smoothing support file (e.g., one generated by GenerateSmoothSupport).

3. queryModel: the file of the query model to be evaluted

4. resultFile: the result file

5. resultFormat: whether the result format should be of the TREC format (i.e., six-column) or just a simple three-column format <queryID, docID, score>. Boolean value, false for non-TREC format, and true for TREC format. Default: true (i.e., TREC format)

6. resultCount: the number of documents to return as result for each query

   The following are document model smoothing parameters:

7. smoothMethod: One of the four:
   • jelinikmercer or jm or 0 for Jelinek-Mercer
   • dirichletprior or dir or 1 for Dirichlet prior
   • absolutediscount or ad or 2 for Absolute discounting
   • twostage or 2s or 3 for two stage.

8. smoothStrategy: Either interpolate or 0 for interpolate or backoff or 1 for backoff.

9. adjustedScoreMethod: Which type of score to output, one of:
   • "querylikelihood" or "ql" for query likelihood.
   • "crossentropy" or "ce" for cross entropy.
   • "negativekld" or "-d" for negative KL divergence.

10. JelinekMercerLambda: The collection model weight in the JM interpolation method. Default: 0.5

11. DirichletPrior: The prior parameter in the Dirichlet prior smoothing method. Default: 1000

12. discountDelta: The delta (discounting constant) in the absolute discounting method. Default 0.7.

Generated on Tue Jun 15 11:02:58 2010 for Lemur by 1.3.4