Font Size: a A A

The Search Of Fuzzy Knowledge Systems Based On Fuzzy Relations

Posted on:2012-07-24Degree:MasterType:Thesis
Country:ChinaCandidate:J H TangFull Text:PDF
GTID:2120330335459433Subject:Applied Mathematics
Abstract/Summary:PDF Full Text Request
Since Zadeh proposed fuzzy theory, many scholars have conducted a series of research to the fuzzy theory,even has formed the quite systematic fuzzy system theory. Fuzzy system is a system based on knowledge or rules, which is to describe the superio-rity of human knowledge of the language and convert human knowledge to a nonlinear mapping. It can be seen that fuzzy knowledge system has occupied a extremely import-ant position In the fuzzy theory. previously scholars have been studied in the probability of fuzzy knowledge system, from the angle of the fuzzy uncertainty of fuzzy rules mea-suring the entropy of fuzzy rules, proposing fuzzy entropy of fuzzy rules and in the sam e level of fuzzy entropy of fuzzy rules, thus realizing the construction and optimization of the fuzzy system.This article is foundation in the above fuzzy knowledge system and does deeper re-search. In the knowledge system, I has researched the uncertainty of the matrix of fuz-zy relationship and presented a new method of evaluating the fuzzy rules. The main r-esearch work is divided into two parts:The first part, in the fuzzy knowledge system I has definited the fuzzy entropy made of fuzzy proposition which is composed of condition attributes of the field and the decision-making under the condition attributes. Even, I has given property and evaluation of the fuzzy entropy. and what is more, I has definited the fuzzy entropy which made of the fuzzy proposition of the degree of conformity of the groups and given property and evaluation of the fuzzy entropy.The second part, in the fuzzy knowledge system I has definited the fuzzy entropy, made of fuzzy proposition which is composed of multi- condition attributes of individuality and the decision-making under the condition attributes.
Keywords/Search Tags:Fuzzy knowledge system, fuzzy relations, fuzzy entropy, fuzzy entropy of fuzzy relations
PDF Full Text Request
Related items