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#pragma once
#include <vector>
#include "moses/Factor.h"
namespace Moses
{
namespace Syntax
{
namespace F2S
{
// A HyperPath for representing the source-side tree fragment of a
// tree-to-string rule. See this paper:
//
// Hui Zhang, Min Zhang, Haizhou Li, and Chew Lim Tan
// "Fast Translation Rule Matching for Syntax-based Statistical Machine
// Translation"
// In proceedings of EMNLP 2009
//
struct HyperPath {
public:
typedef std::vector<std::size_t> NodeSeq;
static const std::size_t kEpsilon;
static const std::size_t kComma;
std::vector<NodeSeq> nodeSeqs;
};
} // namespace F2S
} // namespace Syntax
} // namespace Moses
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