128 lines
3.7 KiB
C++
Executable File
128 lines
3.7 KiB
C++
Executable File
#ifndef BP_BAYES_NET_H
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#define BP_BAYES_NET_H
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#include <vector>
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#include <queue>
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#include <list>
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#include <map>
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#include "GraphicalModel.h"
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#include "BayesNode.h"
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#include "Shared.h"
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using namespace std;
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class Distribution;
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struct ScheduleInfo
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{
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ScheduleInfo (BayesNode* n, bool vfp, bool vfc)
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{
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node = n;
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visitedFromParent = vfp;
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visitedFromChild = vfc;
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}
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BayesNode* node;
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bool visitedFromParent;
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bool visitedFromChild;
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};
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struct StateInfo
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{
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StateInfo (void)
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{
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visited = true;
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markedOnTop = false;
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markedOnBottom = false;
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}
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bool visited;
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bool markedOnTop;
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bool markedOnBottom;
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};
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typedef vector<Distribution*> DistSet;
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typedef queue<ScheduleInfo, list<ScheduleInfo> > Scheduling;
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typedef map<unsigned, unsigned> Histogram;
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typedef map<unsigned, double> Times;
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class BayesNet : public GraphicalModel
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{
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public:
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BayesNet (void) {};
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BayesNet (const char*);
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~BayesNet (void);
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BayesNode* addNode (unsigned);
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BayesNode* addNode (unsigned, unsigned, int, BnNodeSet&,
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Distribution*);
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BayesNode* addNode (string, Domain, BnNodeSet&, ParamSet&);
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BayesNode* getBayesNode (Vid) const;
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BayesNode* getBayesNode (string) const;
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Variable* getVariable (Vid) const;
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void addDistribution (Distribution*);
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Distribution* getDistribution (unsigned) const;
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const BnNodeSet& getBayesNodes (void) const;
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unsigned getNumberOfNodes (void) const;
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BnNodeSet getRootNodes (void) const;
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BnNodeSet getLeafNodes (void) const;
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VarSet getVariables (void) const;
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BayesNet* getMinimalRequesiteNetwork (Vid) const;
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BayesNet* getMinimalRequesiteNetwork (const VidSet&) const;
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void constructGraph (BayesNet*,
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const vector<StateInfo*>&) const;
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bool isSingleConnected (void) const;
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void setIndexes (void);
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void freeDistributions (void);
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void printGraphicalModel (void) const;
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void exportToDotFormat (const char*, bool = true,
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CVidSet = VidSet()) const;
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void exportToBifFormat (const char*) const;
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static Histogram histogram_;
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static Times times_;
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private:
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DISALLOW_COPY_AND_ASSIGN (BayesNet);
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bool containsUndirectedCycle (void) const;
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bool containsUndirectedCycle (int, int,
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vector<bool>&)const;
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vector<int> getAdjacentNodes (int) const ;
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ParamSet reorderParameters (CParamSet, unsigned) const;
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ParamSet revertParameterReorder (CParamSet, unsigned) const;
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void scheduleParents (const BayesNode*, Scheduling&) const;
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void scheduleChilds (const BayesNode*, Scheduling&) const;
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BnNodeSet nodes_;
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DistSet dists_;
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IndexMap indexMap_;
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};
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inline void
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BayesNet::scheduleParents (const BayesNode* n, Scheduling& sch) const
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{
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const BnNodeSet& ps = n->getParents();
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for (BnNodeSet::const_iterator it = ps.begin(); it != ps.end(); it++) {
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sch.push (ScheduleInfo (*it, false, true));
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}
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}
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inline void
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BayesNet::scheduleChilds (const BayesNode* n, Scheduling& sch) const
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{
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const BnNodeSet& cs = n->getChilds();
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for (BnNodeSet::const_iterator it = cs.begin(); it != cs.end(); it++) {
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sch.push (ScheduleInfo (*it, true, false));
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}
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}
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#endif //BP_BAYES_NET_H
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