7. The method of claim 1 , further comprising replacing one or more occurrences of concepts in the tuples with a most frequently occurring concept yielding an altered string pattern.
8. The method of claim 7 , further comprising, in the altered string pattern: setting the reference string set comprising the plurality of strings; denoting each string with its occurrence count; finding, inside the reference string set comprising the plurality of strings, specific substring triples of substring tuples of the at least two specific tuples; considering each tuple as the candidate for representing the related concept; where: each prefix substring of the substring triples and each suffix substring of the substring triples is an explicit member of the reference string set; each concatenation of the substrings triples is an explicit member of the reference string set; each middle substring of the substring triples is unequal to another middle substring within the substring triples found inside the reference string set; and either the prefix substring of the substring triples or the suffix substring of the substring triples is not empty.