public static SequenceBuilder GetWTM( ISymbolCoder symcoder = null, SequenceBuilder seq_builder = null)
{
return delegate (IList<int> seq, int sigma) {
var wt = new WTM();
wt.Build(seq, sigma, symcoder, seq_builder);
return wt;
};
}
public static SequenceBuilder GetWTM_TopKFreqCoder(byte bits_per_code, int K, SequenceBuilder seq_builder = null)
{
return delegate (IList<int> seq, int sigma) {
var wt = new WTM();
TopKFreqCoder symcoder;
var __coder = new EqualSizeCoder(bits_per_code, sigma - 1);
var freqs = new int[sigma];
for (int i = 0; i < seq.Count; ++i) {
freqs[seq[i]]++;
}
symcoder = new TopKFreqCoder(K, freqs, __coder);
wt.Build(seq, sigma, symcoder, seq_builder);
return wt;
};
}
public static SequenceBuilder GetWTM(byte bits_per_code, SequenceBuilder seq_builder = null)
{
return delegate (IList<int> seq, int sigma) {
var wt = new WTM();
var symcoder = new EqualSizeCoder(bits_per_code, sigma - 1);
wt.Build(seq, sigma, symcoder, seq_builder);
return wt;
};
}
