Patent ID: 7146359

Claim:
A method of content filtering in a discovered topic comprising: collecting querying data contained in a log said querying data having caused a retrieval of a collection of documents; preprocessing said querying data, wherein said preprocessing comprises; cleaning said querying data; transforming said querying data into a querying data vector; and clustering said querying data based on said querying data vector; and postfiltering a collection of documents, said postfiltering comprising; collecting actual document content data, said actual document content data related to documents which were retrieved based on said querying data contained in said log; preprocessing said actual document content data, wherein said preprocessing comprises: cleaning said actual document content data; transforming said actual document content data into a document content data vector; and clustering said collection of actual documents content data based on said document content data vector; wherein said postfiltering performs a similarity computation between said querying data cluster and said actual content data cluster to generate a collection of documents having content similar to said querying data wherein extraneous subject matter documents are excluded from said collection of documents.