Impala Documentation

Real64 Impala::Core::Trec::SearchJudge::Judge	(	String	topic,
		std::vector< String >	shots
	)			`[inline]`

Definition at line 126 of file SearchJudge.h.

References GetNrRelevant(), and Judge().

00127     {
00128         int unjudged = 0;
00129         int nonRel = 0;
00130         int rel = 0;
00131         Real64 infAP = 0;
00132         Real64 apAdd = 0;
00133         for (int s=0 ; s<shots.size() ; s++)
00134         {
00135             switch (Judge(topic, shots[s]))
00136             {
00137             case -1:
00138                 unjudged++;
00139                 break;
00140             case 0:
00141                 nonRel++;
00142                 break;
00143             case 1:
00144                 rel++;                                          
00145                 if (s == 0)
00146                 {
00147                     infAP += 1; 
00148                 }
00149                 else
00150                 {
00151                     Real64 k = s + 1;
00152                     Real64 relMin = rel - 1;
00153                     Real64 d = relMin + nonRel + unjudged;
00154                     Real64 eps = 0.00001;
00155                     apAdd = 1.0 / k + ((k-1) / k) *
00156                         (d / (k-1)) * ((relMin + eps) / (relMin + nonRel + 2*eps));
00157                     //std::cout << "apAdd = " << apAdd
00158                     //          << ", rel = " << rel << ", d = " << d << std::endl;
00159                     infAP += apAdd;
00160                 }
00161                 break;
00162             }
00163         }
00164         infAP /= GetNrRelevant(topic);
00165         return infAP;
00166     }

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