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authorgraehl <graehl@ec762483-ff6d-05da-a07a-a48fb63a330f>2010-07-08 16:44:20 +0000
committergraehl <graehl@ec762483-ff6d-05da-a07a-a48fb63a330f>2010-07-08 16:44:20 +0000
commit337b647baac15609a0a493902d58c473d25d2ed8 (patch)
tree3827f59a180164878ee217f27f445c259c9e5bab /decoder/hg.h
parent7386574a2c70c7ed6e937eb94e3add8023cd7327 (diff)
--show_features
git-svn-id: https://ws10smt.googlecode.com/svn/trunk@184 ec762483-ff6d-05da-a07a-a48fb63a330f
Diffstat (limited to 'decoder/hg.h')
-rw-r--r--decoder/hg.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/decoder/hg.h b/decoder/hg.h
index ab90650c..0f8d21fd 100644
--- a/decoder/hg.h
+++ b/decoder/hg.h
@@ -59,6 +59,9 @@ class Hypergraph {
short int prev_j_;
};
+ // returns edge with rule_.IsGoal, returns 0 if none found. otherwise gives best edge_prob_ - note: I don't think edge_prob_ is viterbi cumulative, so this would just be the best local probability.
+ Edge const* ViterbiGoalEdge() const;
+
void swap(Hypergraph& other) {
other.nodes_.swap(nodes_);
std::swap(is_linear_chain_, other.is_linear_chain_);
@@ -218,10 +221,12 @@ class Hypergraph {
// common WeightFunctions, map an edge -> WeightType
// for generic Viterbi/Inside algorithms
struct EdgeProb {
+ typedef prob_t Weight;
inline const prob_t& operator()(const Hypergraph::Edge& e) const { return e.edge_prob_; }
};
struct EdgeSelectEdgeWeightFunction {
+ typedef prob_t Weight;
typedef std::vector<bool> EdgeMask;
EdgeSelectEdgeWeightFunction(const EdgeMask& v) : v_(v) {}
inline prob_t operator()(const Hypergraph::Edge& e) const {
@@ -236,10 +241,12 @@ struct ScaledEdgeProb {
ScaledEdgeProb(const double& alpha) : alpha_(alpha) {}
inline prob_t operator()(const Hypergraph::Edge& e) const { return e.edge_prob_.pow(alpha_); }
const double alpha_;
+ typedef prob_t Weight;
};
// see Li (2010), Section 3.2.2-- this is 'x_e = p_e*r_e'
struct EdgeFeaturesAndProbWeightFunction {
+ typedef const SparseVector<prob_t> Weight;
inline const SparseVector<prob_t> operator()(const Hypergraph::Edge& e) const {
SparseVector<prob_t> res;
for (SparseVector<double>::const_iterator it = e.feature_values_.begin();
@@ -250,6 +257,7 @@ struct EdgeFeaturesAndProbWeightFunction {
};
struct TransitionCountWeightFunction {
+ typedef double Weight;
inline double operator()(const Hypergraph::Edge& e) const { (void)e; return 1.0; }
};