EP0390177A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and apparatus for fuzzy reasoning
Assignee: Hitachi Ltd
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Filing: 1990-03-29
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Granted: —
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Expires: 2010-03-29
Abstract
Abstract Fuzzy knowledge stored in a knowledge base (110) is written into a memory (121). When fuzzy reasoning is executed by a fuzzy reasoning unit (130) based on the content of the memory, a control unit (120) in a central processing unit (100) may modify the knowledge base in the memory. The control unit is programmed such that after it has modified the knowledge base in the memory, it causes a reasoning execution unit to repeatedly and automatically execute predetermined fuzzy reasoning by the number of times corresponding to the number of input data. The control unit also modifies the knowledge base and causes the reasoning execution unit to execute the fuzzy reasoning. By reading out the knowledge base in the memory, it is possible to verify the validity of the fuzzy knowledge without executing the simulation of the fuzzy reasoning. The fuzzy reasoning course of the reasoning execution unit may be stored in another memory (141). In this case, the control unit may display the fuzzy reasoning result on a display device (102) in an expression easily understandable by a user, based on the content of the other memory.
Inventors
- 👤 Chizuko Yasunobu
- 👤 Fumihiko Mori
- 👤 Hiroshi Yamada
- 👤 Seiji Yasunobu
- 👤 Ryuko Someya
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 11:44
CPC Classifications
G; G06; G06N; G06N5/00; G06N5/02; G06N5/022; G06N5/04; G06N5/045; G06N5/048; G06N7/00; G06N7/02; G06N7/023; G06N7/04; Y; Y10; Y10S; Y10S706/00; Y10S706/90
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
77 words
A method of fuzzy reasoning for effecting fuzzy reasoning based on fuzzy knowledge stored in a knowledge storage (121), comprising the steps of: (a) selectively storing the fuzzy knowledge stored in a knowledge base (110) into the knowledge storage; (b) automatically modifying the fuzzy knowledge in said knowledge storage in accordance with a parameter designated by a central processing unit (100), and (c) executing the fuzzy reasoning based on the modified fuzzy knowledge in said knowledge storage.
Claim 2
Independent Claim
77 words
A method of fuzzy reasoning for effecting fuzzy reasoning based on fuzzy knowledge stored in a knowledge storage (121), comprising the steps of: (a) selectively storing the fuzzy knowledge stored in a knowledge base (110) into the knowledge storage; (b) automatically modifying the fuzzy knowledge in said knowledge storage in accordance with a parameter designated by a central processing unit (100), and (c) executing the fuzzy reasoning based on the modified fuzzy knowledge in said knowledge storage.
Claim 3
Dependent Claim
29 words
A method of fuzzy reasoning according to Claim 1 wherein at least one of a fuzzy rule (240) and a membership function (228) in said knowledge storage is modified.
Claim 4
Dependent Claim
38 words
A method of fuzzy reasoning according to Claim 1 wherein said step (c) repeats the fuzzy reasoning for the modified fuzzy knowledge in said knowledge storage by the number of times corresponding to the number of input data.
Claim 5
Dependent Claim
29 words
A method of fuzzy reasoning according to Claim 1 wherein said steps (b) and (c) are repeatedly executed by the number of times designated by said central processing unit.
Claim 6
Dependent Claim
60 words
A method of fuzzy reasoning according to Claim 1 further comprising the steps of: storing the latest time of modification of the fuzzy knowledge in said knowledge storage; determining the necessity of the conversion of the fuzzy knowledge in said knowledge storage to an internal expression format permitting high speed processing; and converting the format when the conversion is required.
Claim 7
Dependent Claim
29 words
A method of fuzzy reasoning according to Claim 1 or 5 further comprising the step of storing the modified fuzzy knowledge in said knowledge storage into said knowledge base.
Claim 8
Dependent Claim
57 words
A method of fuzzy reasoning according to Claim 1 further comprising the steps of: storing a fuzzy reasoning course into a reasoning course storage (141); preparing (143; 142) a reasoning result in a form understandable by a user based on the content in said reasoning course storage; and supplying the reasoning result to an output device (102).
Claim 9
Dependent Claim
40 words
A method of fuzzy reasoning according to Claim 1 further comprising the steps of: converting a fuzzy rule for visual display based on the fuzzy knowledge in said knowledge storage; and supplying said visual display to an output device (102).
Claim 10
Dependent Claim
105 words
A fuzzy reasoning apparatus comprising: a control unit (120) in a central processing unit (100); a knowledge base (110) for storing fuzzy knowledge; a knowledge storage (121) for selectively reading in and storing the fuzzy knowledge in said knowledge base; means (111) connected to said control unit and said knowledge storage for modifying the fuzzy knowledge in said knowledge storage in accordance with an instruction from said control unit; and means (130) connected to said control unit and said knowledge storage for executing the fuzzy reasoning based on the modified fuzzy knowledge in said knowledge storage in accordance with an instruction from said control unit.
Claim 11
Dependent Claim
105 words
A fuzzy reasoning apparatus comprising: a control unit (120) in a central processing unit (100); a knowledge base (110) for storing fuzzy knowledge; a knowledge storage (121) for selectively reading in and storing the fuzzy knowledge in said knowledge base; means (111) connected to said control unit and said knowledge storage for modifying the fuzzy knowledge in said knowledge storage in accordance with an instruction from said control unit; and means (130) connected to said control unit and said knowledge storage for executing the fuzzy reasoning based on the modified fuzzy knowledge in said knowledge storage in accordance with an instruction from said control unit.
Claim 12
Dependent Claim
111 words
A fuzzy reasoning apparatus combined with a system including a central processing unit (100) having a control unit (120) and a knowledge base (110) for storing fuzzy knowledge, comprising: a knowledge storage (121) for selectively reading in and storing the fuzzy knowledge in said knowledge base; means (111) connected to said control unit and said knowledge storage for modifying the fuzzy knowledge in said knowledge storage in accordance with an instruction from said control unit; and means (130) connected to said control unit and said knowledge storage for executing the fuzzy reasoning based on the modified fuzzy knowledge in said knowledge storage in accordance with an instruction from said control unit.
Claim 13
Dependent Claim
111 words
A fuzzy reasoning apparatus combined with a system including a central processing unit (100) having a control unit (120) and a knowledge base (110) for storing fuzzy knowledge, comprising: a knowledge storage (121) for selectively reading in and storing the fuzzy knowledge in said knowledge base; means (111) connected to said control unit and said knowledge storage for modifying the fuzzy knowledge in said knowledge storage in accordance with an instruction from said control unit; and means (130) connected to said control unit and said knowledge storage for executing the fuzzy reasoning based on the modified fuzzy knowledge in said knowledge storage in accordance with an instruction from said control unit.
Claim 14
Dependent Claim
31 words
A fuzzy reasoning apparatus according to Claim 9 or 10 wherein said fuzzy reasoning execution means (1350) is included in a fuzzy reasoning processor (1340) independent from said central processing unit.
Claim 15
Dependent Claim
34 words
A fuzzy reasoning apparatus according to Claim 9 or 10 wherein at least one of a fuzzy rule (240) and a membership function (228) of the fuzzy knowledge in said knowledge storage in modified.
Claim 16
Dependent Claim
41 words
A fuzzy reasoning apparatus according to Claim 9 or 10 wherein said fuzzy reasoning execution means repeats the fuzzy reasoning for the modified fuzzy knowledge in said knowledge storage by the number of times corresponding to the number of input data.
Claim 17
Dependent Claim
43 words
A fuzzy reasonsing apparatus according to Claim 9 or 10 wherein said fuzzy reasoning execution means repeats the execution of the fuzzy reasoning while modifying the fuzzy knowledge in said knowledge storage by the number of thems designated by said central processing unit.
Claim 18
Dependent Claim
64 words
A fuzzy reasoning apparatus according to Claim 9 or 10 further comprising: means for storing the lastest modification time of the fuzzy knowledge stored in said knowledge storage; means for determining the necessity of the conversion of the fuzzy knowledge in said knowledge storage to an internal expression form permitting high speed processing; and means for effecting the conversion when the conversion is required.
Claim 19
Dependent Claim
28 words
A fuzzy reasoning apparatus according to Claim 9, 10 or 15 further comprising: means for storing the modified fuzzy knowledge in said knowledge storage into said knowledge base.
Claim 20
Dependent Claim
54 words
A fuzzy reasoning apparatus according to Claim 9 or 10 further comprising: a reasoning course storage (141) for storing fuzzy reasoning course; means (143) for preparing reasoning explanation in a form understandable by a user based on the content of said reasoning course storage; and an output device (102) for outputting the reasoning explanation.
Claim 21
Dependent Claim
42 words
A fuzzy reasoning apparatus according to Claim 9 or 10 further comprising: means (150) for converting a fuzzy rule to a visual display based on the fuzzy knowledge in said knowledge storage; and an output device (102) for outputting the visual display.
References Cited (Backward Citations)
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