Patent ID: 7644102
Filing Date: 2010-01-05
Classification: G06F,G06K,Y10S

Abstract:
1. A method performed by a computer for clustering a plurality of documents in a structure comprised of a plurality of clusters hierarchically organized, wherein each document includes a plurality of words and is represented as a set of (document, word) pairs, the method comprising: accessing the document collection; performing a clustering process that creates a hierarchy of clusters that reflects a segregation of the documents in the collection based on the words included in the documents, wherein a document in the collection is assigned to a first cluster in the hierarchy based on a first segment of the respective document, and the respective document is assigned to a second cluster in the hierarchy based on a second segment of the respective document, wherein the first and second clusters are associated with different paths of the hierarchy comprising the steps: storing a representation of the hierarchy of clusters in a memory; and making the representation available to an entity in response to a request associated with the document collection.