diff options
Diffstat (limited to 'vest/ces.cc')
-rw-r--r-- | vest/ces.cc | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/vest/ces.cc b/vest/ces.cc deleted file mode 100644 index 4ae6b695..00000000 --- a/vest/ces.cc +++ /dev/null @@ -1,87 +0,0 @@ -#include "ces.h" - -#include <vector> -#include <sstream> -#include <boost/shared_ptr.hpp> - -#include "aligner.h" -#include "lattice.h" -#include "viterbi_envelope.h" -#include "error_surface.h" - -using boost::shared_ptr; -using namespace std; - -const bool minimize_segments = true; // if adjacent segments have equal scores, merge them - -void ComputeErrorSurface(const SentenceScorer& ss, const ViterbiEnvelope& ve, ErrorSurface* env, const ScoreType type, const Hypergraph& hg) { - vector<WordID> prev_trans; - const vector<shared_ptr<Segment> >& ienv = ve.GetSortedSegs(); - env->resize(ienv.size()); - ScoreP prev_score; - int j = 0; - for (int i = 0; i < ienv.size(); ++i) { - const Segment& seg = *ienv[i]; - vector<WordID> trans; - if (type == AER) { - vector<bool> edges(hg.edges_.size(), false); - seg.CollectEdgesUsed(&edges); // get the set of edges in the viterbi - // alignment - ostringstream os; - const string* psrc = ss.GetSource(); - if (psrc == NULL) { - cerr << "AER scoring in VEST requires source, but it is missing!\n"; - abort(); - } - size_t pos = psrc->rfind(" ||| "); - if (pos == string::npos) { - cerr << "Malformed source for AER: expected |||\nINPUT: " << *psrc << endl; - abort(); - } - Lattice src; - Lattice ref; - LatticeTools::ConvertTextOrPLF(psrc->substr(0, pos), &src); - LatticeTools::ConvertTextOrPLF(psrc->substr(pos + 5), &ref); - AlignerTools::WriteAlignment(src, ref, hg, &os, true, 0, &edges); - string tstr = os.str(); - TD::ConvertSentence(tstr.substr(tstr.rfind(" ||| ") + 5), &trans); - } else { - seg.ConstructTranslation(&trans); - } - // cerr << "Scoring: " << TD::GetString(trans) << endl; - if (trans == prev_trans) { - if (!minimize_segments) { - assert(prev_score); // if this fails, it means - // the decoder can generate null translations - ErrorSegment& out = (*env)[j]; - out.delta = prev_score->GetZero(); - out.x = seg.x; - ++j; - } - // cerr << "Identical translation, skipping scoring\n"; - } else { - ScoreP score = ss.ScoreCandidate(trans); - // cerr << "score= " << score->ComputeScore() << "\n"; - ScoreP cur_delta_p = score->GetZero(); - Score* cur_delta = cur_delta_p.get(); - // just record the score diffs - if (!prev_score) - prev_score = score->GetZero(); - - score->Subtract(*prev_score, cur_delta); - prev_trans.swap(trans); - prev_score = score; - if ((!minimize_segments) || (!cur_delta->IsAdditiveIdentity())) { - ErrorSegment& out = (*env)[j]; - out.delta = cur_delta_p; - out.x = seg.x; - ++j; - } - } - } - // cerr << " In segments: " << ienv.size() << endl; - // cerr << "Out segments: " << j << endl; - assert(j > 0); - env->resize(j); -} - |