Patent ID: 9053417
Filing Date: 2015-06-09
Classification: G06F,G06N

Abstract:
1. A computer implemented method comprising: receiving, by a processor of a computer system, at least a first first-level cluster of documents and a second first-level cluster of documents, wherein the first first-level cluster includes one or more first documents associated with a first domain, the first documents satisfying a first first-level classification criterion, the second first-level cluster including one or more second documents associated with a second domain, the second documents satisfying a second first-level classification criterion; receiving a third first-level cluster of documents, wherein the third first-level cluster includes one or more third documents associated with a third domain and at least one of the third documents satisfying the first first-level classification criterion; when the first domain does not match the second domain, creating, by a processor of the computer system, a second-level cluster by combining the first first-level cluster with the second first-level cluster when the first first-level cluster and second first-level cluster satisfy a second-level classification criterion; and when the first domain matches the second domain: