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我正在尝试学习 Jess 和 FuzzyJ，但是在运行一个简单的程序时遇到了问题。我已经看了好几个小时，不太确定它为什么不运行。如果有人能指出我正确的方向，将不胜感激。

;;;;;;;;;;;;;;;;;;;;;;;;;
Fuzzy Variables
;;;;;;;;;;;;;;;;;;;;;;;;;;

(defglobal ?*income* = 
    (new nrc.fuzzy.FuzzyVariable "income" 0.0 230000.00 "dollars"))
(defglobal ?*stability* =
    (new nrc.fuzzy.FuzzyVariable "stability" 0.0 1.0 "index"))
(defglobal ?*liquidity* =
    (new nrc.fuzzy.FuzzyVariable "liquidity" 0.0 1.0 "index"))



(defrule initial-terms
    (declare (salience 100))
=>
(import nrc.fuzzy.*)
(load-package nrc.fuzzy.jess.FuzzyFunctions)

;;;;;;;;;;;;;;;;;;;;;
Primary Terms
;;;;;;;;;;;;;;;;;;;;;;;


(?*income* addTerm "low" (new ZFuzzySet 30000.00 80000.00))
(?*income* addTerm "medium" (new PIFuzzySet 100000.00 60000.00))
(?*income* addTerm "high" (new SFuzzySet 80000.00 190000.00))

(?*stability* addTerm "low" (new ZFuzzySet .3 .5))
(?*stability* addTerm "medium" (new PIFuzzySet .6 .4))
(?*stability* addTerm "high" (new SFuzzySet .7 .9))

(?*liquidity* addTerm "low" (new ZFuzzySet .3 .5))
(?*liquidity* addTerm "medium" (new PIFuzzySet .6 .4))
(?*liquidity* addTerm "high" (new SFuzzySet .7 . 9))
)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Fuzzy Rules
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(defrule rule-1 "low income => liquidity very low"
    (theIncome ?x &: (fuzzy-match ?x "low"))
=>

    (assert(theLiquidity (new nrc.fuzzy.FuzzyValue ?*liquidity* "very low")))

(defrule rule-2 "high income & high stability => very high liquidity"
    (theIncome ?x &: (fuzzy-match ?x "high"))
    (theStability ?y (fuzzy-match ?y "high"))
=>
    (assert(theLiquidity (new nrc.fuzzy.FuzzyValue ?*liquidity* "very high"))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Defuzzification
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(defrule defuzzification-and-display-liquidity
    (declare (salience -1))
    ?f <- (theLiquidity ?z)
=>
    (printout t (str-cat "Liquidity: " (?z momentDefuzzify)))
    retract( ?f)
    (halt))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Start up Rule/Fuzzify
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(defrule assert-income-and-stability "initialization"
=>
    (printout t "Enter the income(ex. 52000): ")
    (bind ?income-value (float (readline t)))

    (printout t "Enter the stability index(ex. 0.64): ")
    (bind ?stability-value (float(readline t)))


    (assert(theIncome
        (new nrc.fuzzy.FuzzyValue ?*income*
        (new nrc.fuzzy.TriangleFuzzySet
        (- ?income-value 3000.0)
        ?income-value
        (+ ?income-value 3000.0)))))

    (assert(theStability
        (new nrc.fuzzy.FuzzyValue ?*stability*
        (new nrc.fuzzy.TriangleFuzzySet
        (- ?stability-value 3000.0)
        ?stability-value
        (+ ?stability-value 3000.0))))))

(reset)
(run)
4

1 回答 1

1

这个程序有很多小的语法错误；一般来说，Jess 解释器可以很好地指出它们。首先，在您的每个评论块中，您都有评论的实际文本......没有评论。因此，例如，在“模糊变量”等行的开头添加一个分号。

二、上线

(?*liquidity* addTerm "high" (new SFuzzySet .7 . 9))

最后一个小数点后不应该有空格。

第三，规则rule-1和rule-2末尾没有足够的右括号。任何能够格式化 Lisp 代码的体面的程序员编辑器都应该能够帮助您解决这个问题。

四、上线

(theStability ?y (fuzzy-match ?y "high"))

您在谓词函数之前缺少“&：” - 请参阅上一行。

最后，我认为，这条线

retract( ?f)

格式错误 - 应该是(retract ?f).

于 2011-06-01T14:53:11.290 回答