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yap-6.3/packages/CLPBN/horus/WeightedBp.h
2013-03-09 16:41:53 +00:00

70 lines
1.4 KiB
C++

#ifndef YAP_PACKAGES_CLPBN_HORUS_WEIGHTEDBP_H_
#define YAP_PACKAGES_CLPBN_HORUS_WEIGHTEDBP_H_
#include "BeliefProp.h"
namespace Horus {
class WeightedBp : public BeliefProp {
public:
WeightedBp (const FactorGraph& fg,
const std::vector<std::vector<unsigned>>& weights);
~WeightedBp();
Params getPosterioriOf (VarId);
private:
class WeightedLink : public BeliefProp::BpLink {
public:
WeightedLink (FacNode* fn, VarNode* vn, size_t idx,
unsigned weight);
size_t index() const { return index_; }
unsigned weight() const { return weight_; }
const Params& powMessage() const { return pwdMsg_; }
void updateMessage();
private:
size_t index_;
unsigned weight_;
Params pwdMsg_;
DISALLOW_COPY_AND_ASSIGN (WeightedLink);
};
void createLinks();
void maxResidualSchedule();
void calcFactorToVarMsg (BpLink*);
Params getVarToFactorMsg (const BpLink*);
void printLinkInformation() const;
std::vector<std::vector<unsigned>> weights_;
DISALLOW_COPY_AND_ASSIGN (WeightedBp);
};
inline void
WeightedBp::WeightedLink::updateMessage()
{
pwdMsg_ = *nextMsg_;
swap (currMsg_, nextMsg_);
LogAware::pow (pwdMsg_, weight_);
}
} // namespace Horus
#endif // YAP_PACKAGES_CLPBN_HORUS_WEIGHTEDBP_H_