26. The apparatus as recited in claim 24 , at least one of the processor or the memory being further adapted for: comparing the regular expressions of the set of seed examples with the set of candidates to find a positive set of candidates that each match at least one of the expressions; and comparing seed terms of the positive set of candidates with the seed terms of the set of seed examples to identify at least a portion of the set of candidates containing at least one of the seed terms of the set of seed examples.
24. The apparatus as recited in claim 18 , wherein each of the set of seed examples is represented by a regular expression and each corresponding context includes one or more seed terms, wherein each of the final set of seed examples is represented by a regular expression and one or more seed terms, and wherein adding the selected subset of the set of candidates to the set of seed examples comprises: converting each of the subset of the set of candidates to a regular expression.