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cec2020: implement Ackley func
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leo 2023-02-06 15:48:03 +01:00
parent 9795287dc9
commit 83a8c94ea9
Signed by: wanderer
SSH Key Fingerprint: SHA256:Dp8+iwKHSlrMEHzE3bJnPng70I7LEsa3IJXRH/U+idQ
1 changed files with 16 additions and 1 deletions
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bench/cec2020/basicFunctions.go
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@ -77,7 +77,22 @@ func Griewank(x []float64) float64 {
} }
// Ackley is the "Ackley's Function" of CEC2020. // Ackley is the "Ackley's Function" of CEC2020.
func Ackley(x []float64) float64 { return 0 } func Ackley(x []float64) float64 {
var sum1 float64
var sum2 float64
for i := range x {
sum1 += math.Pow(x[i], 2)
sum2 += math.Cos(2 * math.Pi * x[i])
}
// float64 version of the length of x.
fnx := float64(len(x))
return -20*math.Exp(-0.2*math.Sqrt((1/fnx)*sum1)) - math.Exp((1/fnx)*sum2) + 20 + math.E
}
// Happycat is the "Happycat Function" of CEC2020. // Happycat is the "Happycat Function" of CEC2020.
func Happycat(x []float64) float64 { func Happycat(x []float64) float64 {