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m_set_map.c
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m_set_map.c
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/*
Copyright (c) 2008 - Chris Buckley.
Permission is granted for use and modification of this file for
research, non-commercial purposes.
*/
#include "common.h"
#include "sysfunc.h"
#include "trec_eval.h"
#include "functions.h"
#include "trec_format.h"
static int
te_calc_set_map(const EPI * epi, const REL_INFO * rel_info,
const RESULTS * results, const TREC_MEAS * tm,
TREC_EVAL * eval);
/* See trec_eval.h for definition of TREC_MEAS */
TREC_MEAS te_meas_set_map = { "set_map",
" Set map: num_relevant_retrieved**2 / (num_retrieved*num_rel)\n\
Unranked set map, where the precision due to all relevant retrieved docs\n\
is the set precision, and the precision due to all relevant not-retrieved\n\
docs is set to 0.\n\
Was known as exact_unranked_avg_prec in earlier versions of trec_eval.\n\
Another way of loooking at this is Recall * Precision on the set of\n\
docs retrieved for a topic.\n",
te_init_meas_s_double,
te_calc_set_map,
te_acc_meas_s,
te_calc_avg_meas_s,
te_print_single_meas_s_double,
te_print_final_meas_s_double,
NULL, -1
};
static int
te_calc_set_map(const EPI * epi, const REL_INFO * rel_info,
const RESULTS * results, const TREC_MEAS * tm, TREC_EVAL * eval)
{
RES_RELS res_rels;
if (UNDEF == te_form_res_rels(epi, rel_info, results, &res_rels))
return (UNDEF);
if (res_rels.num_ret && res_rels.num_rel)
eval->values[tm->eval_index].value =
((double) res_rels.num_rel_ret *
(double) res_rels.num_rel_ret) /
((double) res_rels.num_ret * (double) res_rels.num_rel);
return (1);
}