xapian-letor/letor.cc

   1 /** @file letor.cc
   2  * @brief Letor Class
   3  */
   4 /* Copyright (C) 2011 Parth Gupta
   5  * Copyright (C) 2012 Olly Betts
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
  20  * USA
  21  */
  22
  23 #include <config.h>
  24 #include <xapian/letor.h>
  25 #include "letor_internal.h"
  26 #include "ranker.h"
  27 #include "svmranker.h"
  28
  29 #include <map>
  30 #include <string>
  31
  32 using namespace std;
  33
  34 namespace Xapian {
  35
  36 Letor::Letor(const Letor & o) : internal(o.internal) { }
  37
  38 Letor &
  39 Letor::operator=(const Letor & o)
  40 {
  41     internal = o.internal;
  42     return *this;
  43 }
  44
  45 Letor::Letor() : internal(new Letor::Internal) { }
  46
  47 Letor::~Letor() { }
  48
  49
  50 void
  51 Letor::set_database(const Xapian::Database & db) {
  52     internal->letor_db = db;
  53 }
  54
  55 void
  56 Letor::set_query(const Xapian::Query & query) {
  57     internal->letor_query = query;
  58 }
  59
  60 map<Xapian::docid, double>
  61 Letor::letor_score(const Xapian::MSet & mset) {
  62     return internal->letor_score(mset);
  63 }
  64
  65 void
  66 Letor::letor_learn_model(int s, int k) {
  67     internal->letor_learn_model(s, k);
  68 }
  69
  70 void
  71 Letor::prepare_training_file(const string & query_file, const string & qrel_file, Xapian::doccount msetsize) {
  72     internal->prepare_training_file(query_file, qrel_file, msetsize);
  73 }
  74
  75 void
  76 Letor::create_ranker(int ranker_type) {
  77     switch(ranker_type) {
  78         case 0: internal->ranker = * new SVMRanker;
  79                 break;
  80         case 1: break;
  81         default: ;//cout<<"Please specify proper ranker.";
  82     }
  83 }
  84
  85 }