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NAME

RePrec::EP_ND - compute precision values

SYNOPSIS

  (see RePrec(3))

DESCRIPTION

Computation of precision values according to the Expected Precision measure (user standpoint: stop at a given number of documents retrieved). Equivalent to this measure is the Probability of relevance (PRR) measure with the same user standpoint.

METHODS

Mainly see RePrec(3). The precision function gives an unique interpretation for each recall point. Precision can be computed for each simple recall point only.

BUGS

Yes. Please let me know!

SEE ALSO

RePrec(3), perl(1).

AUTHOR

Norbert Gövert <goevert@ls6.cs.uni-dortmund.de>