U.S. patents available from 1976 to present.
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Evaluation system for determining analogy and symmetric comparison among objects in model-based computation systems

Patent 4905162 Issued on February 27, 1990. Estimated Expiration Date: Icon_subject March 30, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Device for recognizing an input pattern with approximate patterns used for reference patterns on mapping
Patent #: 4256924
Issued on: 03/17/1981
Inventor: Sakoe

Similarity calculator comprising a buffer for a single input pattern feature vector to be pattern matched with reference patterns
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Inventors

Assignee

Application

No. 032161 filed on 03/30/1987

US Classes:

706/52, Reasoning under uncertainty (e.g., fuzzy logic)382/209, Template matching (e.g., specific devices that determine the best match)706/46Knowledge representation and reasoning technique

Examiners

Primary: Ruggiero, Joseph

Attorney, Agent or Firm

International Classes

G06F 015/20
G06K 009/62

Abstract

A mechanism for determining analogy and symmetric comparison among objects based on characteristics and weighting values provided by an operator or calling program. The characteristics of each object are defined in a reference table. A similarity table is constructed in which comparisons and differences between objects are detailed based on whether they possess similar characteristics. The weights are used to provide a quantitative measure of similarity and difference.

Other References

  • Hartzband, David et al., International Journal of Approximate Reasoning, The Provision of Induction in Data Model Systems: I. Analogy, Elsevier Science Publishing Co, Inc. 52 Vanderbilt Ave., New York, NY 10017, 1:5-2, 1987
  • Lenat, Douglas B. et al., Artificial Intelligence, Why AM and EURISKO Appear to Work*, Elsevier Science Publishers B.V. (North-Holland), vol. 23, 269-294, (1984)
  • Carbonell, Jamie G., Computer Science Department, Carnegie-Mellon University, Pittsburgh, Pa. 15213, Derivational Analogy: A Theory of Reconstructive Problem Solving and Expertise Acquisition, Mar. 1985
  • Hartzband, D., Digital Equipment Corporation Technical Report 397 (DEC TR-397), The Anatomy of Knowledge Base Management. Proc. 1st Annual AI and Adv. Comp. Tech. Conf. Long Beach, Calif., 4/85, pp. 333-340
  • David J. Hartzband, Digital Equipment Corporation, Enhancing Knowledge Representation in Engineering Databases, 1985 IEEE, pp. 39-48
  • Barry G. Silverman, Systems Man, Cybernetics IEEE Trans. 13(6), Analogy in Systems Management: A Theoretical Inquiry, vol. SMC-13, No. 6, Nov./Dec. 1983, pp. 1049-1075
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  • Amos Tversky, Psycological Review, American Psychological Association Inc., vol. 84, No. 4, Jan. 1977, Psycological Reviews, pp. 327-35
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