1 files changed, 29 insertions, 0 deletions
diff --git a/extractor/sampler.h b/extractor/sampler.h
new file mode 100644
index 00000000..9cf321fb
--- /dev/null
+++ b/extractor/sampler.h
@@ -0,0 +1,29 @@
+#ifndef _SAMPLER_H_
+#define _SAMPLER_H_
+
+#include <memory>
+
+using namespace std;
+
+class PhraseLocation;
+class SuffixArray;
+
+class Sampler {
+ public:
+  Sampler(shared_ptr<SuffixArray> suffix_array, int max_samples);
+
+  virtual ~Sampler();
+
+  virtual PhraseLocation Sample(const PhraseLocation& location) const;
+
+ protected:
+  Sampler();
+
+ private:
+  int Round(double x) const;
+
+  shared_ptr<SuffixArray> suffix_array;
+  int max_samples;
+};
+
+#endif