Patent ID: 7590628

Claim:
A computer-implemented method of determining the subject of a target document, comprising: using a computer processor to perform: (a) identifying a plurality of peer documents within the same domain as the target document, each of the plurality of peer documents being associated with the target document and being stored in a computer memory; (b) for each of the plurality of peer documents, (i) identifying a plurality of linking documents having links that link to the peer document, each link having an anchor text, (ii) identifying a plurality of linking documents having links that link to the peer document, each link having an anchor text, and (iii) identifying a first pattern common to the title of the peer document and the selected anchor text; (c) identifying a second pattern from the first patterns associated with the plurality of peer documents by identifying the second pattern from the first patterns associated with the plurality of peer documents based at least in part on the number of peer documents associated with the first patterns; and (d) identifying a subject for the target document based on the second pattern and a title of the target document.