27. The method of claim 24 , wherein the query is executed using a relevance-based search engine.
24. A method for determining the likelihood that a source document describes substantially the same subject matter as another document in a document corpus, the method comprising: identifying a list of queries corresponding to the source document; executing each identified query in the list of queries on the document corpus, wherein the execution of each query yields a corresponding results set a set of documents in the document corpus ordered according to the relevance of each document to the executed query; for each document identified in each results set, generating a document score for the identified document, the document score based on both the breadth of the query and the relevance of the returned document; selecting a subset of the identified documents of the results sets, wherein the generated document scores for the documents of the selected subset meet a predetermined score threshold, and wherein selecting the subset of the identified documents of the results sets further comprises determining a minimum score for a potential duplicate document from the document corpus that is returned in more than one results set, and including the potential duplicate document in the subset of the identified documents of the results sets in a case where the minimum score meets the predetermined score threshold; and presenting the subset of the identified documents of the results sets to a display device for display to a user for evaluation as duplicate documents of the source document.