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-rw-r--r--extractor/matchings_sampler.cc38
1 files changed, 38 insertions, 0 deletions
diff --git a/extractor/matchings_sampler.cc b/extractor/matchings_sampler.cc
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+++ b/extractor/matchings_sampler.cc
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+#include "matchings_sampler.h"
+
+#include "data_array.h"
+#include "phrase_location.h"
+
+namespace extractor {
+
+MatchingsSampler::MatchingsSampler(
+ shared_ptr<DataArray> data_array, int max_samples) :
+ BackoffSampler(data_array, max_samples) {}
+
+MatchingsSampler::MatchingsSampler() {}
+
+int MatchingsSampler::GetNumSubpatterns(const PhraseLocation& location) const {
+ return location.num_subpatterns;
+}
+
+int MatchingsSampler::GetRangeLow(const PhraseLocation&) const {
+ return 0;
+}
+
+int MatchingsSampler::GetRangeHigh(const PhraseLocation& location) const {
+ return location.matchings->size() / location.num_subpatterns;
+}
+
+int MatchingsSampler::GetPosition(const PhraseLocation& location,
+ int index) const {
+ return (*location.matchings)[index * location.num_subpatterns];
+}
+
+void MatchingsSampler::AppendMatching(vector<int>& samples, int index,
+ const PhraseLocation& location) const {
+ copy(location.matchings->begin() + index,
+ location.matchings->begin() + index + location.num_subpatterns,
+ back_inserter(samples));
+}
+
+} // namespace extractor