protected virtual IResult GetCandidates(int[] qseq, int maxcand)
{
var len_qseq = qseq.Length;
var n = this.DB.Count;
var A = new Dictionary<int,int>(1024);
for (int i = 0; i < len_qseq; ++i) {
var rs = this.SEQ.Unravel (qseq [i]);
var count1 = rs.Count1;
for (int j = 1; j <= count1; ++j) {
var pos = rs.Select1 (j);
var docid = pos / this.K;
var internal_pos = pos - docid * this.K;
if (internal_pos == i) {
int value;
if (i == 0) {
A [docid] = 1;
} else if (A.TryGetValue(docid, out value) && value == i) {
A [docid] = value + 1;
}
}
}
}
var res = new ResultTies (Math.Abs (maxcand));
foreach (var p in A) {
res.Push (p.Key, -p.Value);
}
return res;
}
