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artificial-intelligence - 通过增加 CLIPS 中某个值的顺序来输出特定的事实

问题描述

我有以下事实清单：

f-0    (initial-fact)
f-1    (fact 1 [input_1] 21)
f-2    (fact 1 [input_2] 28)
f-3    (fact 1 [input_3] 10)
f-4    (fact 1 [input_4] 25)
f-5    (fact 1 Normal Operation!)
f-6    (fact 2 [input_1] 7)
f-7    (fact 2 [input_2] 25)
f-8    (fact 2 [input_3] 13)
f-9    (fact 2 [input_4] 15)
f-10   (fact 2 adder a1 error!)
f-11   (fact 3 [input_1] 11)
f-12   (fact 3 [input_2] 17)
f-13   (fact 3 [input_3] 24)
f-14   (fact 3 [input_4] 31)
f-15   (fact 3 multiplier p1 error!)

有没有办法以某种方式从所有这些事实中选择和打印仅包含错误数量和类型的事实？例如，我想按递增顺序打印：

1 Normal Operation!
2 adder a1 error!
3 multiplier p1 error!

请注意，我实际上有更多事实，并且它们在事实列表中的顺序并不像我显示的那样按递增顺序排列。所以我必须以某种方式让它增加。

标签： artificial-intelligenceclipsexpert-system

解决方案

         CLIPS (6.31 2/3/18)
CLIPS> 
(deffacts initial
   (fact 1 [input_1] 21)
   (fact 1 [input_2] 28)
   (fact 1 [input_3] 10)
   (fact 1 [input_4] 25)
   (fact 1 Normal Operation!)
   (fact 2 [input_1] 7)
   (fact 2 [input_2] 25)
   (fact 2 [input_3] 13)
   (fact 2 [input_4] 15)
   (fact 2 adder a1 error!)
   (fact 3 [input_1] 11)
   (fact 3 [input_2] 17)
   (fact 3 [input_3] 24)
   (fact 3 [input_4] 31)
   (fact 3 multiplier p1 error!))
CLIPS> 
(deffunction compare-1st (?f1 ?f2)
   (> (nth$ 1 (fact-slot-value ?f1 implied))
      (nth$ 1 (fact-slot-value ?f2 implied))))
CLIPS> 
(defrule print
   =>
   (bind ?facts 
      (find-all-facts ((?f fact)) 
                      (not (instance-namep (nth$ 2 ?f:implied)))))
   (bind ?facts (sort compare-1st ?facts))
   (foreach ?f ?facts
      (bind ?data (fact-slot-value ?f implied))
      (printout t (implode$ (first$ ?data)) " " 
                  (implode$ (rest$ ?data)) crlf))) 
CLIPS> (reset)
CLIPS> (run)
1 Normal Operation!
2 adder a1 error!
3 multiplier p1 error!
CLIPS>

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