| /* |
| |
| EGYPT Toolkit for Statistical Machine Translation |
| Written by Yaser Al-Onaizan, Jan Curin, Michael Jahr, Kevin Knight, John Lafferty, Dan Melamed, David Purdy, Franz Och, Noah Smith, and David Yarowsky. |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License |
| as published by the Free Software Foundation; either version 2 |
| of the License, or (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| USA. |
| |
| */ |
| /* Perplexity.cc |
| * ============= |
| * Mike Jahr, 7/21/99 |
| * Machine Translation group, WS99 |
| * Center for Language and Speech Processing |
| * |
| * Last Modified by: Yaser Al-Onaizan, August 17, 1999 |
| * |
| * Simple class used to calculate cross entropy and perplexity |
| * of models. |
| */ |
| |
| #include "Perplexity.h" |
| |
| void Perplexity::record(string model){ |
| mutex.lock(); |
| modelid.push_back(model); |
| perp.push_back(perplexity()); |
| ce.push_back(cross_entropy()); |
| mutex.unlock(); |
| } |
