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yap-6.3/packages/CLPBN/horus/FoveSolver.h
2012-05-23 14:56:01 +01:00

169 lines
3.4 KiB
C++

#ifndef HORUS_FOVESOLVER_H
#define HORUS_FOVESOLVER_H
#include "ParfactorList.h"
class LiftedOperator
{
public:
virtual double getLogCost (void) = 0;
virtual void apply (void) = 0;
virtual string toString (void) = 0;
static vector<LiftedOperator*> getValidOps (
ParfactorList&, const Grounds&);
static void printValidOps (ParfactorList&, const Grounds&);
static vector<ParfactorList::iterator> getParfactorsWithGroup (
ParfactorList&, unsigned group);
};
class ProductOperator : public LiftedOperator
{
public:
ProductOperator (
ParfactorList::iterator g1, ParfactorList::iterator g2,
ParfactorList& pfList) : g1_(g1), g2_(g2), pfList_(pfList) { }
double getLogCost (void);
void apply (void);
static vector<ProductOperator*> getValidOps (ParfactorList&);
string toString (void);
private:
static bool validOp (Parfactor*, Parfactor*);
ParfactorList::iterator g1_;
ParfactorList::iterator g2_;
ParfactorList& pfList_;
};
class SumOutOperator : public LiftedOperator
{
public:
SumOutOperator (unsigned group, ParfactorList& pfList)
: group_(group), pfList_(pfList) { }
double getLogCost (void);
void apply (void);
static vector<SumOutOperator*> getValidOps (
ParfactorList&, const Grounds&);
string toString (void);
private:
static bool validOp (unsigned, ParfactorList&, const Grounds&);
static bool isToEliminate (Parfactor*, unsigned, const Grounds&);
unsigned group_;
ParfactorList& pfList_;
};
class CountingOperator : public LiftedOperator
{
public:
CountingOperator (
ParfactorList::iterator pfIter,
LogVar X,
ParfactorList& pfList)
: pfIter_(pfIter), X_(X), pfList_(pfList) { }
double getLogCost (void);
void apply (void);
static vector<CountingOperator*> getValidOps (ParfactorList&);
string toString (void);
private:
static bool validOp (Parfactor*, LogVar);
ParfactorList::iterator pfIter_;
LogVar X_;
ParfactorList& pfList_;
};
class GroundOperator : public LiftedOperator
{
public:
GroundOperator (
unsigned group,
unsigned lvIndex,
ParfactorList& pfList)
: group_(group), lvIndex_(lvIndex), pfList_(pfList) { }
double getLogCost (void);
void apply (void);
static vector<GroundOperator*> getValidOps (ParfactorList&);
string toString (void);
private:
vector<pair<unsigned, unsigned>> getAffectedFormulas (void);
unsigned group_;
unsigned lvIndex_;
ParfactorList& pfList_;
};
class FoveSolver
{
public:
FoveSolver (const ParfactorList& pfList) : pfList_(pfList) { }
Params getPosterioriOf (const Ground&);
Params getJointDistributionOf (const Grounds&);
void printSolverFlags (void) const;
static void absorveEvidence (
ParfactorList& pfList, ObservedFormulas& obsFormulas);
static Parfactors countNormalize (Parfactor*, const LogVarSet&);
static Parfactor calcGroundMultiplication (Parfactor pf);
private:
void runSolver (const Grounds&);
LiftedOperator* getBestOperation (const Grounds&);
void runWeakBayesBall (const Grounds&);
void shatterAgainstQuery (const Grounds&);
static Parfactors absorve (ObservedFormula&, Parfactor*);
ParfactorList pfList_;
double largestCost_;
};
#endif // HORUS_FOVESOLVER_H