📄 amismodelformat.h
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//////////////////////////////////////////////////////////////////////////// Copyright (c) 2000, Yusuke Miyao/// You may distribute under the terms of the Artistic License.////// <id>$Id: AmisModelFormat.h,v 1.4 2003/05/16 12:10:44 yusuke Exp $</id>/// <collection>Maximum Entropy Estimator</collection>/// <name>AmisModelFormat.h</name>/// <overview>Parser for Amis-style model files</overview>/////////////////////////////////////////////////////////////////////////#ifndef Amis_AmisModelFormat_h_#define Amis_AmisModelFormat_h_#include <amis/configure.h>#include <amis/ModelFormat.h>#include <amis/Model.h>#include <amis/Tokenizer.h>///////////////////////////////////////////////////////////////////////// <classdef>/// <name>AmisModelFormat</name>/// <overview>Parser for Amis-style model files</overview>/// <desc>/// The class imports model data from Amis-style model files./// The Amis format enables non-binary features./// For details, see README./// </desc>/// <see>Model, ModelFormat</see>/// <body>AMIS_NAMESPACE_BEGINtemplate < FeatureWeightType FW = LAMBDA, class Name = std::string >class AmisModelFormat : public ModelFormat {public: AmisModelFormat() : ModelFormat() {} /// Constructor virtual ~AmisModelFormat() {} /// Destructor std::string modelFormatName() const { return "AmisModel"; } /// Name of the model format void inputModel( std::istream& is, ModelBase& model_base ) { Model< Name >* model = dynamic_cast< Model< Name >* >( &model_base ); if ( model == NULL ) { throw IllegalModelFormatError( "AmisModelFormat can be used only for Model< ... > class", 0 ); } inputModel( is, *model ); } virtual void inputModel( std::istream& is, Model< Name >& model ) { Tokenizer t( is ); while ( ! t.endOfStream() ) { std::string feature_str; if ( ! t.nextToken( feature_str ) ) continue; // empty line if ( feature_str.find( ':' ) != std::string::npos ) { throw IllegalModelFormatError( "Feature name cannot contain \":\" in Feature " + feature_str, t.lineNumber() ); } IStringStream feature_is( feature_str ); Name feature; feature_is >> feature; if ( ! feature_is ) { throw IllegalModelFormatError( "Cannot read feature name: " + feature_str, t.lineNumber() ); } Real lambda; if ( ! t.nextToken( lambda ) ) { OStringStream os; os << "Lambda value not found for Feature " << feature; throw IllegalModelFormatError( os.str(), t.lineNumber() ); } model.newFeature( feature, inputLambda< FW >( lambda ) ); std::string dummy; if ( t.nextToken( dummy ) ) { OStringStream os; os << "Too many tokens for Feature " << feature; throw IllegalModelFormatError( os.str(), t.lineNumber() ); } } } /// Input model data from an input stream void outputModel( const ModelBase& model_base, std::ostream& os, int precision = DEFAULT_PRECISION ) const { const Model< Name >* model = dynamic_cast< const Model< Name >* >( &model_base ); if ( model == NULL ) { throw IllegalModelFormatError( "AmisModelFormat can be used only for Model< ... > class", 0 ); } outputModel( *model, os, precision ); } virtual void outputModel( const Model< Name >& model, std::ostream& os, int precision = DEFAULT_PRECISION ) const { os.precision( precision ); os.setf( std::ios::scientific ); for ( int i = 0; i < model.numFeatures(); ++i ) { os << model.featureName( i ) << '\t' << outputLambda< FW >( model.getLambda( i ) ) << '\n'; } } /// Output model data into an output stream};AMIS_NAMESPACE_END/// </body>/// </classdef>#endif // AmisModelFormat_h_// end of AmisModelFormat.h⌨️ 快捷键说明
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