Patent ID: 7711747

Claim:
A document clustering or categorization system comprising: a probabilistic clusterer or categorizer; an outlier measure calculator; and a controller including a graph ca user interface, the controller configured to: (i) invoke the probabilistic clusterer or categorizer respective to a set of documents to generate a model associating documents with classes, (ii) invoke the outlier measure calculator to calculate outlier measures for the documents indicative of how well each document fits into the model generated by the probabilistic clusterer or categorizer, (iii) identify to the user via the graphical user interface outlier documents whose corresponding outlier measures satisfy an outlier criterion selected by the user via the graphical user interface, (iv) subsequent to the identifying (iii), receive from the user via the graphical user interface a user input selecting a change in the set of documents, a constraint on the probabilistic clusterer or categorizer, or an acceptance of the model, (v) updating the model by invoking the probabilistic clusterer or categorizer respective to the set of documents adjusted by the user input to update the model, and (vi) repeat operations (ii)-(v) until the user input selects acceptance of the model.