public static bool ConstructiveComparator(ConstructiveResult result, KnapsackReferenceSolution referenceSolution)
{
//Calculate and save epsilon
var optimalPrice = referenceSolution.Price;
var actualPrice = result.Configuration.Price;
if (Math.Max(actualPrice, optimalPrice) == 0)
{
result.Epsilon = 0;
}
else
{
result.Epsilon = (float)Math.Abs(actualPrice - optimalPrice) / Math.Max(actualPrice, optimalPrice);
}
if (result.Configuration.Price != referenceSolution.Price || result.Configuration.Weight > result.KnapsackInstance.KnapsackSize)
{
Console.WriteLine($"Permutation instance solution (id {result.KnapsackInstance.Id}) incorrect," +
$" result: {OutputWriter.ItemVectorToString(result.Configuration.ItemVector)} (price {result.Configuration.Price})" +
$" expected result: {OutputWriter.ItemVectorToString(referenceSolution.ItemVector)} (price {referenceSolution.Price})");
return(false);
}
return(true);
}
public override string ConvertToString(object value, IWriterRow row, MemberMapData memberMapData)
{
return(OutputWriter.ItemVectorToString((IList <bool>)value));
}