25. A computer-readable storage medium, storing program instructions computer-executable on a computer to implement a genetic rule generator configured to: based on reference data that includes pairs of information items and labels that each indicate whether a given pair of information items have a specific relationship, generate a first machine learning model for determining whether pairs of information items have said specific relationship; identify one or more false positive pairs, wherein a given false positive pair is a pair of information items that the first machine learning model indicates as having said specific relationship and which are labeled within the reference data as not having said specific relationship; generate an indication of one or more of the identified false positive pairs as candidates to be corrected within the reference data.
25. A computer-readable storage medium, storing program instructions computer-executable on a computer to implement a genetic rule generator configured to: based on reference data that includes pairs of information items and labels that each indicate whether a given pair of information items have a specific relationship, generate a first machine learning model for determining whether pairs of information items have said specific relationship; identify one or more false positive pairs, wherein a given false positive pair is a pair of information items that the first machine learning model indicates as having said specific relationship and which are labeled within the reference data as not having said specific relationship; generate an indication of one or more of the identified false positive pairs as candidates to be corrected within the reference data. 27. The medium of claim 25 , wherein said specific relationship includes one or more of: a relationship indicating the information items of a given pair are duplicates, wherein duplicate information items describe a common item; a relationship indicating the information items of a given pair are related but not duplicates; a relationship indicating the information items of a given pair are unrelated items; or a relationship indicating the information items of a given pair are members of a common title set, the title set including different products conveying a common work of art.