Method and apparatus for document filtering using ensemble filters

A computer-implemented process for generating an ensemble filter for selecting documents from a document source comprising:

• identifying a plurality of sets of documents from a set of training documents;
• identifying a plurality of profiles corresponding to said plurality of sets of documents;
• creating a plurality of sub-filters for said plurality of profiles;
• combining a first one of said plurality of sub-filters with a second one of said plurality of sub-filters to thereby create an ensemble filter;
• and
• storing said ensemble filter for selecting documents in a computer readable medium, said filter for selecting documents being accessible by computer readable program code for filtering and selecting documents;
• wherein creating each sub-filter comprises the steps of
• selecting a first subset and a second subset from a set of documents,
• extracting a set of features from the first subset, and
• calculating a score threshold for the set of features from the second subset.