public ExpertOpinion GetResult(string profileName)
{
var initialData = _initialDataProvider.GetInitialData();
var knowledgeBase = _knowledgeManager.GetKnowledgeBase(profileName);
var opinion = new ExpertOpinion();
if (!initialData.IsPresent)
{
opinion.AddErrorMessage("Initial data is not consistent. Check logs for more information.");
}
if (!knowledgeBase.IsPresent)
{
opinion.AddErrorMessage("Knowledge base is not consistent. Check logs for more information.");
}
ValidateInitialDataAgainstKnowledgeBase(initialData, knowledgeBase, opinion);
if (!opinion.IsSuccess)
{
return(opinion);
}
_inferenceEngine.InitializeEngine();
FillInferenceEngineRules(knowledgeBase.Value);
var activatedNodes = GetInitialNodes(knowledgeBase.Value, initialData.Value);
var inferenceResults = _inferenceEngine.GetInferenceResults(activatedNodes);
opinion.AddResults(DeFuzzifyResults(inferenceResults, knowledgeBase.Value.LinguisticVariables));
return(opinion);
}
private void ValidateInitialDataAgainstKnowledgeBase(
Optional <List <InitialData> > initialData,
Optional <KnowledgeBase> knowledgeBase,
ExpertOpinion opinion)
{
foreach (var data in initialData.Value)
{
var matchingVariable = knowledgeBase.Value.LinguisticVariables.SingleOrDefault(lv => lv.Value.VariableName == data.Name);
if (matchingVariable.Value == null)
{
opinion.AddErrorMessage($"Initial data {data.Name} is not present in linguistic variables base.");
}
}
}
public void SetUp()
{
_expertOpinion = new ExpertOpinion();
}
public string LogInferenceResult(Dictionary <int, ImplicationRule> implicationRules, ExpertOpinion expertOpinion, string userName)
{
var destinationPath = AppDomain.CurrentDomain.BaseDirectory + $@"\Results\{userName}\InferenceLog-{DateTime.Now:yyyy-MM-dd_HH-mm-ss-fff}.txt";
Directory.CreateDirectory(Path.GetDirectoryName(destinationPath));
var rules = implicationRules.Select(rule => $"Implication rule {rule.Key} : {rule.Value}").ToList();
_fileOperations.AppendLinesToFile(destinationPath, rules);
if (expertOpinion.IsSuccess)
{
var results = expertOpinion.Result.Select(result => $"Node {result.NodeName} ({result.DefuzzifiedValue}) was enabled with confidence factor {result.ConfidenceFactor}").ToList();
_fileOperations.AppendLinesToFile(destinationPath, results);
}
else
{
_fileOperations.AppendLinesToFile(destinationPath, expertOpinion.ErrorMessages);
}
return(destinationPath);
}
