作者Limpburke (because you are)
看板logic
标题[请益] AI(人工智慧)相关内容 , fitness值的定义
时间Sat Jun 10 22:40:41 2006
(*A(-(*AA)(sqrt A))) fitness:1
(/A(/(/AA)(/AA))) fitness:3
(+A(*(sqrt A)A)) fitness:0
PS.sqrt为开根号的意思, ex:A = (sqrt(*AA))
Since the fitness measure is a function of the data points we want to explain,
we define fitness as the number of output of the program that come within
20 per cent of the correct output values. We use this definition to create the
fitness measure of this initial population, to build crossover and mutation
operators that can produce further generations of programs, and to determine
termination conditions.
请问,fitness的定义为何?
我看了定义後,似懂非懂,但无法理解为何上面三个前序表示式的fitness值分别为1,3,0
请各位先进高手专家,不吝赐教,谢谢,感激不尽!
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 220.131.15.235