Parallel processing qualitative reasoning system

• US 5,138,694 A
• Filed: 06/28/1991
• Issued: 08/11/1992
• Est. Priority Date: 06/28/1991
• Status: Expired due to Fees

• Current Assignee: United Technologies Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Original Assignee: United Technologies Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Hamilton, Thomas P.
• Primary Examiner(s): DOWNS, ROBERT W
• Application Number:
  US07/723,360
• Time in Patent Office: 410 Days
• Field of Search: 364/513, 395/11, 395/10, 395/51, 395/52, 395/800
• US Class Current: 706/52
• CPC Class Codes: G06F 11/2257 using expert systems
• CPC Class Codes: G06F 2201/865 Monitoring of software
• CPC Class Codes: G06N 20/00 Machine learning
• CPC Class Codes: G06N 5/043 Distributed expert systems; Blackboards

Abstract

A parallel processing qualitative reasoning system uses a control processor and a plurality of server processors to evaluate a plurality of hypotheses simultaneously. The control processor provides hypotheses and user observations to the server processors and the server processors return evaluated hypotheses to the control processor. The server processors can be interrupted after a predetermined amount of time to return a partially evaluated hypothesis.

Claims

1. A parallel processing qualitative reasoning system, comprising:

a plurality of interconnected server processors, for evaluating pending qualitative physics hypotheses, wherein each of said server processors terminates hypothesis evaluation and provides partially evaluated hypotheses for each hypothesis that cannot be evaluated in a predetermined amount of time; and

a control processor, interconnected with said server processors, for providing either pending hypotheses or partially evaluated hypotheses to each of said server processors in response to each of said server processors evaluating or terminating evaluation of a previous hypothesis.

2. A parallel processing qualitative reasoning system, according to claim 1, wherein said control processor further comprises:

means for asynchronously providing user observations, which are input at said control processor, to said server processors.

3. A parallel processing qualitative reasoning system, according to claim 1, wherein said server processors and said control processor are computer workstations interconnected via an ethernet network.

4. A parallel processing qualitative reasoning system, according to claim 1, wherein said partially evaluated hypotheses are treated the same as fully evaluated hypotheses.

5. A parallel processing qualitative reasoning system, comprising:

a plurality of interconnected server processors for evaluating pending qualitative physics hypotheses; and

a control processor, interconnected with said server processors, for providing pending hypotheses to each of said server processors in response to each of said server processors finishing evaluating a previous hypothesis.

6. A parallel processing qualitative reasoning system, according to claim 5, wherein said control processor further comprises:

means for terminating server hypothesis evaluation in response to an external signal received at said control processor;

and wherein said server processors further comprise;

means for providing partially evaluated hypotheses in response to said control processor terminating server hypothesis evaluation.

7. A parallel processing qualitative reasoning system, according to claim 6, wherein said partially evaluated hypotheses are treated the same as fully evaluated hypotheses.

8. A parallel processing qualitative reasoning system, according to claim 5, wherein said control processor further comprises:

means for asynchronously providing user observations, which are input at said control processor, to said server processors.

9. A parallel processing qualitative reasoning system, according to claim 5, wherein said server processors and said control processor are computer workstations interconnected via an ethernet network.