公开(公告)号：US11782963B2

公开(公告)日：2023-10-10

申请号：US17248375

申请日：2021-01-22

Applicant: THE SECRETARY OF STATE FOR DEFENCE

Inventor： Ajay Chakravarthy ,  Robin James Williamson

IPC: G06F16/36 ,  G06F16/332 ,  G06F16/35 ,  G06K9/00 ,  G06F16/33 ,  G06V30/418

CPC classification number: G06F16/3344 ,  G06F16/332 ,  G06F16/355 ,  G06F16/367 ,  G06V30/418

Abstract: A computer implemented method of determining a fact matching a user requirement. The method involves providing an ontology and a semantic database, controlling a computer processor to perform the steps of accepting a query defining a template for a statement regarding a fact, identifying matching patterns in the semantic database, and outputting either a matching statement or information supporting the user to locate corresponding information. A formula is provided that defines a maximum semantic distance that a class or instance may be broadened to. In identifying the patterns, for each instance/class having a non-zero divergence value, one or more broader classes is accordingly treated as a match.