Michael D Hirsch

US Patent:

8489522, Jul 16, 2013

Filed:

Mar 30, 2010

Appl. No.:

12/750440

Inventors:

Michael J. Hirsch - Orlando FL, US
John T. Geiss - Safety Harbor FL, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

G06F 15/18
G06F 13/00
G06E 1/02

US Classification:

706 12, 706 25, 706 26

Abstract:

According to one embodiment, a pattern learning system includes a pattern learning tool that receives event messages in a sequential manner from multiple sensors and forms multiple sub-sequences that each includes a trigger event message, a consequence event message, and one or more intermediary event messages. The pattern learning tool then generates multiple graphs that each represents a sub-sequence of the plurality of event messages. The pattern learning tool then combines the graphs into a combined graph according to a type of each event message, and determines a causal sequence from the combined graph according to a heaviest weighted directed path from the trigger event message to the consequence event message.

US Patent:

20100223086, Sep 2, 2010

Filed:

Feb 24, 2010

Appl. No.:

12/711391

Inventors:

Michael J. Hirsch - Orlando FL, US
Brandon C. Ha - Garland TX, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

G06Q 10/00
G06Q 50/00
G06N 5/02

US Classification:

705 8, 705301, 705348, 706 47

Abstract:

According to one embodiment, determining a course of action includes receiving a problem description describing an optimization problem. The optimization problem comprises resources and adversarial objects. A resource performs an action, and an adversarial object performs a reaction in response to the action. The optimization problem is decomposed into sub-problems, where each sub-problem corresponds to an adversarial object. Each sub-problem is solved to yield an optimal sub-solution. It is determined whether there are one or more resource conflicts among the sub-solutions. A resource conflict occurs if a resource is required to perform more than one action at a stage. If there are one or more resource conflicts, a fixing procedure is applied to address the resource conflicts.