68 lines
1.3 KiB
C
68 lines
1.3 KiB
C
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#ifndef HORUS_CBP_H
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#define HORUS_CBP_H
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#include "BpSolver.h"
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#include "CFactorGraph.h"
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class Factor;
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class CbpSolverLink : public SpLink
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{
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public:
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CbpSolverLink (FacNode* fn, VarNode* vn, unsigned idx, unsigned count)
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: SpLink (fn, vn), index_(idx), nrEdges_(count),
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pwdMsg_(vn->range(), LogAware::one()) { }
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unsigned index (void) const { return index_; }
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unsigned nrEdges (void) const { return nrEdges_; }
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const Params& poweredMessage (void) const { return pwdMsg_; }
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void updateMessage (void)
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{
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pwdMsg_ = *nextMsg_;
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swap (currMsg_, nextMsg_);
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msgSended_ = true;
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LogAware::pow (pwdMsg_, nrEdges_);
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}
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private:
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unsigned index_;
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unsigned nrEdges_;
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Params pwdMsg_;
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};
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class CbpSolver : public BpSolver
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{
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public:
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CbpSolver (const FactorGraph& fg);
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~CbpSolver (void);
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void printSolverFlags (void) const;
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Params getPosterioriOf (VarId);
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Params getJointDistributionOf (const VarIds&);
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private:
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void createLinks (void);
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void maxResidualSchedule (void);
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void calculateFactor2VariableMsg (SpLink*);
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Params getVar2FactorMsg (const SpLink*) const;
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void printLinkInformation (void) const;
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CFactorGraph* cfg_;
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};
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#endif // HORUS_CBP_H
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