decmap.h

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/*  This file is part of libDAI - http://www.libdai.org/
 *
 *  Copyright (c) 2006-2011, The libDAI authors. All rights reserved.
 *
 *  Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
 */




#ifndef __defined_libdai_decmap_h
#define __defined_libdai_decmap_h


#include <dai/dai_config.h>
#ifdef DAI_WITH_DECMAP


#include <dai/daialg.h>


namespace dai {



class DecMAP : public DAIAlgFG {
    private:
        std::vector<size_t> _state;
        Real _logp;
        Real _maxdiff;
        size_t _iters;

    public:
        struct Properties {
            size_t verbose;

            bool reinit;

            std::string ianame;

            PropertySet iaopts;
        } props;

    public:
        DecMAP() : DAIAlgFG(), _state(), _logp(), _maxdiff(), _iters(), props() {}


        DecMAP( const FactorGraph &fg, const PropertySet &opts );



        virtual DecMAP* clone() const { return new DecMAP(*this); }
        virtual DecMAP* construct( const FactorGraph &fg, const PropertySet &opts ) const { return new DecMAP( fg, opts ); }
        virtual std::string name() const { return "DECMAP"; }
        virtual Factor belief( const Var &v ) const { return beliefV( findVar( v ) ); }
        virtual Factor belief( const VarSet &/*vs*/ ) const;
        virtual Factor beliefV( size_t i ) const;
        virtual Factor beliefF( size_t I ) const { return belief( factor(I).vars() ); }
        virtual std::vector<Factor> beliefs() const;
        virtual Real logZ() const { return _logp; }
        virtual std::vector<size_t> findMaximum() const { return _state; }
        virtual void init() { _maxdiff = 0.0; _iters = 0; }
        virtual void init( const VarSet &/*ns*/ ) { init(); }
        virtual Real run();
        virtual Real maxDiff() const { return _maxdiff; }
        virtual size_t Iterations() const { return _iters; }
        virtual void setProperties( const PropertySet &opts );
        virtual PropertySet getProperties() const;
        virtual std::string printProperties() const;
};


} // end of namespace dai


#endif


#endif