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#ifndef WORDLATTICE_H_
#define WORDLATTICE_H_
#include <vector>
#include "ConfusionNet.h"
/** General word lattice */
class WordLattice: public ConfusionNet {
private:
std::vector<std::vector<size_t> > next_nodes;
std::vector<std::vector<int> > distances;
public:
WordLattice();
size_t GetColumnIncrement(size_t ic, size_t j) const;
void Print(std::ostream&) const;
/** Get shortest path between two nodes
*/
virtual int ComputeDistortionDistance(const WordsRange& prev, const WordsRange& current) const;
// is it possible to get from the edge of the previous word range to the current word range
virtual bool CanIGetFromAToB(size_t start, size_t end) const;
int Read(std::istream& in,const std::vector<FactorType>& factorOrder);
/** Convert internal representation into an edge matrix
* @note edges[1][2] means there is an edge from 1 to 2
*/
void GetAsEdgeMatrix(std::vector<std::vector<bool> >& edges) const;
};
#endif
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