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Guoye/merge embr final #3560

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Guoye/merge embr final #3560

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guoli-ye
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Add the EMBR code for sequence training: EMBR is WER based sequence training method, it has been used for all MS ASR production model with very good gains.

@guoli-ye guoli-ye requested a review from vmazalov January 25, 2019 19:12
@@ -23,7 +23,7 @@
#include <algorithm> // for find()
#include "simplesenonehmm.h"
#include "Matrix.h"

#include <set>
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Do we need them sorted? Otherwise we can use unordered_set

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change to unordered set

{
// for sorting purpose
// make sure the map is stored with keys in descending order
std::map<double, std::vector<PrevTokenInfo>, std::greater <double>> mp_score_token_infos; // for sorting the tokens in map
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why not ordered_map? -- similarly in other places.

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the map is for ordering purpose

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