lemur::api::ScoreFunction Class Reference

Abstract interface for retrieval function with a default implementation (dot product). More...

#include <ScoreFunction.hpp>

Inheritance diagram for lemur::api::ScoreFunction:

List of all members.

Public Member Functions
virtual double	matchedTermWeight (const QueryTerm *qTerm, const TextQueryRep *qRep, const DocInfo *info, const DocumentRep *dRep) const
	compute the score contribution of a matched term
virtual double	adjustedScore (double origScore, const TextQueryRep *qRep, const DocumentRep *dRep) const
	score adjustment (e.g., appropriate length normalization)

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Detailed Description

Abstract interface for retrieval function with a default implementation (dot product).

This is an abstract interface for a retrieval function that can be written as involving a sum over all the matched terms between a query and a document. Many retrieval functions can be rewritten in this form. Please see the API documentation on the Lemur web site for more information about the generic scoring function form.

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Member Function Documentation

virtual double lemur::api::ScoreFunction::adjustedScore (  double  origScore, const TextQueryRep *  qRep, const DocumentRep *  dRep )  const [inline, virtual]

score adjustment (e.g., appropriate length normalization)

virtual double lemur::api::ScoreFunction::matchedTermWeight (  const QueryTerm *  qTerm, const TextQueryRep *  qRep, const DocInfo *  info, const DocumentRep *  dRep )  const [inline, virtual]

compute the score contribution of a matched term

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The documentation for this class was generated from the following file:

• ScoreFunction.hpp

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