00001 /*========================================================================== 00002 * Copyright (c) 2001 Carnegie Mellon University. All Rights Reserved. 00003 * 00004 * Use of the Lemur Toolkit for Language Modeling and Information Retrieval 00005 * is subject to the terms of the software license set forth in the LICENSE 00006 * file included with this software, and also available at 00007 * http://www.lemurproject.org/license.html 00008 * 00009 *========================================================================== 00010 */ 00011 00012 #ifndef _CORIMERGEMETHOD_HPP 00013 #define _CORIMERGEMETHOD_HPP 00014 00024 #include "DistMergeMethod.hpp" 00025 00026 class CORIMergeMethod: public DistMergeMethod { 00027 public: 00028 CORIMergeMethod(double constA=0.4, double constB=1.4); 00029 ~CORIMergeMethod(); 00030 00031 protected: 00033 double score(double dbscore, double docscore) const; 00034 00035 private: 00036 double A; // a constant for the formula. default is 0.4 00037 double B; // a constant for the formula. default is 1.4 00038 }; 00039 00040 #endif
1.2.18