随机通用抽样
我需要在c＃中使用sus实现来查找群体中的候选个体，这是我到目前为止所得到的，但我不确定它是否正确。
public void sus(IEnumerable<TimeTable>population)
{
var ag = population.Sum(i => normalize((double) i.Fitness, true));
var mark = rnMutate.NextDouble();
var index = 0;
foreach (var candidate in population)
{
var cu = population.Sum(i => normalize((double)i.Fitness, false)) / ag * 5;
while (cu > mark + index)
{
Survivors.Add(candidate);
index++;
}
}
}
public double normalize(double fitness, bool natural)
{
if (natural)
return fitness;
return fitness == (double)FitnessLBound ? double.PositiveInfinity : 1 / fitness;
}
没有找到相关结果
已邀请:
1 个回复
剑哎
private IEnumerable<TimeTable> StochasticSample(IEnumerable<TimeTable> population, int size) { var t = population.Sum(it => it.Fitness); var temp = new List<TimeTable>(); var ptr = rnMutate.NextDouble(); var sum = 0M; for (int i = 0; i < size; i++) { for (sum += ExpValue(i, t); sum > (decimal) ptr; ptr++) { temp.Add(population.ElementAt(i)); --size; } } return temp; } private decimal ExpValue(decimal fitness, decimal sum) { return decimal.Divide(fitness, sum); }