private void UpdateCorrectionFromArc(TranslationResultBuilder builder, WordGraphArc arc, bool isPrefix,
int alignmentColsToAddCount)
{
for (int i = 0; i < arc.Words.Count; i++)
{
builder.AppendWord(arc.Words[i], arc.WordConfidences[i], !isPrefix && arc.IsUnknown);
}
WordAlignmentMatrix alignment = arc.Alignment;
if (alignmentColsToAddCount > 0)
{
var newAlignment = new WordAlignmentMatrix(alignment.RowCount,
alignment.ColumnCount + alignmentColsToAddCount);
for (int j = 0; j < alignment.ColumnCount; j++)
{
for (int i = 0; i < alignment.RowCount; i++)
{
newAlignment[i, alignmentColsToAddCount + j] = alignment[i, j];
}
}
alignment = newAlignment;
}
builder.MarkPhrase(arc.SourceSegmentRange, alignment);
}
public int CorrectPrefix(TranslationResultBuilder builder, int uncorrectedPrefixLen, string[] prefix,
bool isLastWordComplete)
{
if (uncorrectedPrefixLen == 0)
{
foreach (string w in prefix)
{
builder.AppendWord(w);
}
return(prefix.Length);
}
IEnumerable <EditOperation> wordOps, charOps;
_segmentEditDistance.ComputePrefix(builder.Words.Take(uncorrectedPrefixLen).ToArray(), prefix,
isLastWordComplete, false, out wordOps, out charOps);
return(builder.CorrectPrefix(wordOps, charOps, prefix, isLastWordComplete));
}
private static TranslationResultBuilder CreateResultBuilder(string target, params int[] cuts)
{
var builder = new TranslationResultBuilder();
if (!string.IsNullOrEmpty(target))
{
int i = 0;
int k = 0;
string[] words = target.Split();
for (int j = 0; j < words.Length; j++)
{
builder.AppendWord(words[j], 1);
int cut = j + 1;
if (k < cuts.Length && cuts[k] == cut)
{
int len = cut - i;
builder.MarkPhrase(Range <int> .Create(i, cut), new WordAlignmentMatrix(len, len));
k++;
i = cut;
}
}
}
return(builder);
}
