public IEnumerable <OutputParameterSolution> Solve(IDictionary <Parameter, double> inputValues)
{
if (InputParameters.Except(inputValues.Keys).Any())
{
throw new ArgumentException("Input values do not represent all the task's input parameters.");
}
var inputMembershipValues = InputParameters
.SelectMany(param => param.CalculateMembershipValuesFor(inputValues[param])) // obtains a sequence of KV-pairs instead of dictionaries
.ToDictionary(pair => pair.Key, pair => pair.Value); // merges all the pairs in one dictionaty; throws exception on matching keys (which should never happen)
var outputMembershipValues = Rules
.GroupBy(rule => rule.Class)
.ToDictionary(group => group.Key,
group => group.Select(rule => rule.Expression.Evaluate(inputMembershipValues)).Max()); // joins the rules of the same target class via max (fuzzy disjunction)
return(OutputParameters.Select(param => new OutputParameterSolution(param, outputMembershipValues)));
}
public override string ToString()
{
if (OutputParameters == null && OutputValues == null)
{
return(string.Empty);
}
if (OutputParameters == null)
{
return(ObjectToStringConverter.ConvertCollectionToString(OutputValues));
}
if (OutputValues == null)
{
return(ObjectToStringConverter.ConvertCollectionToString(OutputParameters.Select(p => p.Name)));
}
return(ObjectToStringConverter.ConvertSomeToString(OutputParameters.Select(p => p.Name).ToArray(), OutputValues));
}