private LAEAnswer CalculateKramerMethodAsync(out List <LAEVariable> lAEVariables)
{
bool systemCompatible = this.CheckLinearAlgebraicEquationSystemCompatibility();
if (!systemCompatible)
{
lAEVariables = null;
return(LAEAnswer.NoSolutions);
}
double matrixDeterminant = MatrixT <double> .GetMatrixDeterminant(this.Matrix);
ConcurrentBag <LAEVariable> result = new ConcurrentBag <LAEVariable>();
Parallel.For(0, this.Matrix.Columns, (i) =>
{
MatrixT <double> currentMatrix = MatrixT <double> .SubstituteMatrixColumn(this.Matrix, i, this.RightPartEquations);
double currentDeterminant = MatrixT <double> .GetMatrixDeterminant(currentMatrix);
result.Add(new LAEVariable(this.Variables[i].Name, currentDeterminant / matrixDeterminant));
});
lAEVariables = result.Cast <LAEVariable>().ToList();
return(LAEAnswer.OneSolution);
}
public static IEnumerable <T> Resolve <T>(string name, DnsType type, DnsClass @class, bool recursionDesired = true)
{
var req = new Request()
{
RecursionDesired = recursionDesired
};
req.AddQuestion(new Question(name, type, @class));
var bag = new ConcurrentBag <RecordBase>();
Parallel.ForEach(IP4, server =>
{
try
{
var res = Resolver.Lookup(req, server);
if (res.ReturnCode.Equals(ReturnCode.Success))
{
Parallel.ForEach(res.Answers, answer => bag.Add(answer.Record));
}
}
catch (Exception)
{
//sink it, server might be dead or down
}
});
return(bag.Cast <T>().Distinct().ToList());
}
public override async ValueTask <bool> MoveNextAsync()
{
_items.TryTake(out var _);
while (true)
{
if (_items.Count > 0)
{
return(true);
}
if (_complete && _items.Count == 0)
{
return(false);
}
var waits = _items.Cast <Task>().AsEnumerable();
if (!_complete)
{
var mni = _owner.MoveNextInternal().AsTask();
waits = waits.Append(mni.ContinueWith(final => { if (!final.Result)
{
_complete = true;
}
}));
await Task.WhenAny(waits);
}
else
{
await Task.WhenAny(waits);
}
}
}
public void ShouldForwardNonTargetedMessagesToDeadLetterProcessing()
{
var deadLetters = new ConcurrentBag <object>();
Action <object> deadLetterMethod = msg => { deadLetters.Add(msg); };
_transport = new InMemoryMessageTransport(deadLetterMethod);
var sendMessage = _transport.CreateSenderMethod(_source.Token)
.WithOutboundMessageHandler(msg =>
{
// Ignore the responses send to the outbox; we only care about the
// messages sent to the dead letter queue
});
var unhandledMessage = "Hello, World!";
sendMessage(unhandledMessage);
Thread.Sleep(500);
Assert.True(deadLetters.Count(msg => msg is string) == 1);
var actualMessage = deadLetters.Cast <string>().First();
Assert.Equal(unhandledMessage, actualMessage);
}
public async Task <IEnumerable <IHandle <T> > > GetSubscriptions <T>(IDomainEvent e) where T : IDomainEvent
{
var consumers = new ConcurrentBag <Providers.Integration>();
Parallel.ForEach(e.IntegrationTypes, (integration, state) =>
{
IntegrationStore store;
try
{
//using the abstract factory pattern (as well as dependency injection), I'm able to implement this
//statement instead of having a switch statement to determine what provider it is and creating concrete
//implementations.
store = _stores.SingleOrDefault(f => f.HandlesProvider == integration.IntegrationType);
}
catch (InvalidOperationException)
{
throw new InvalidOperationException(
$"There are more than one IntegrationStores for integration {integration.IntegrationType}");
}
if (store == null)
{
throw new NotImplementedException(
$"IntegrationStore for integration type {integration.IntegrationType} has not implemented.");
}
var eld = store.CreateIntegration(integration);
if (eld.Handles(e))
{
consumers.Add(eld);
}
});
var result = consumers.Cast <IHandle <T> >();
return(await Task.FromResult(result));
}
private ConcurrentBag <Task> CreateConcurrentTaskList <T>(T eventDataTask, ConcurrentBag <object> subscribers)
{
return(new ConcurrentBag <Task>(new ConcurrentBag <Subscription <T> >(subscribers.Cast <Subscription <T> >()).Select(p => CurrentTask(eventDataTask, p))));
}
private void nearestNeighboursButton_Click(object sender, EventArgs e)
{
nNDataGridView.AutoGenerateColumns = true;
bool KSpecified = true;
int K;
List <iKNNResult> AllResults = new List <iKNNResult>();
ConcurrentBag <iKNNResult> ResultBag = new ConcurrentBag <iKNNResult>();
try { K = Convert.ToInt32(kTextBox.Text); }
catch
{
KSpecified = false;
kTextBox.Text = "All";
Application.DoEvents();
K = -1;
}
if (thisFormResultType == typeof(UserQueryResult))
{
UserQueryResult UQR = (UserQueryResult)thisFormResult;
List <UserKNNResult> UKRList = new List <UserKNNResult>();
Parallel.ForEach <UserQueryResult>(parentReference.UserQueryResults, CurrentUQR => {
if (CurrentUQR.AccountName != UQR.AccountName)
{
UserKNNResult UKR = new UserKNNResult(CurrentUQR);
double CurrentDistance = HelperFunctions.GetEuclideanDistance(UQR.ReturnAccessVector(), CurrentUQR.ReturnAccessVector());
UKR.AssignKNNDistanceFromX(CurrentDistance);
ResultBag.Add(UKR);
}
});
UKRList = ResultBag.Cast <UserKNNResult>().ToList <UserKNNResult>();
AllResults = UKRList.OrderBy(o => o.Distance).ToList().Cast <iKNNResult>().ToList();
thisQueryReport = new UserKNNReport(AllResults.Cast <UserKNNResult>().ToList(), Ordering.Ascending);
}
else if (thisFormResultType == typeof(GroupingQueryResult))
{
GroupingQueryResult GQR = (GroupingQueryResult)thisFormResult;
List <GroupingKNNResult> GKRList = new List <GroupingKNNResult>();
Parallel.ForEach <GroupingQueryResult>(parentReference.GroupingQueryResults, CurrentGQR => {
if (CurrentGQR.GroupingName != GQR.GroupingName)
{
GroupingKNNResult GKR = new GroupingKNNResult(CurrentGQR);
double CurrentDistance;
if (parentReference.ClusterByRelativeCount)
{
CurrentDistance = HelperFunctions.GetEuclideanDistance(GQR.ReturnAccessVector(), CurrentGQR.ReturnAccessVector());
}
else
{
CurrentDistance = HelperFunctions.GetEuclideanDistance(GQR.ReturnTF_IDFVector(), CurrentGQR.ReturnTF_IDFVector());
}
GKR.AssignKNNDistanceFromX(CurrentDistance);
ResultBag.Add(GKR);
}
});
GKRList = ResultBag.Cast <GroupingKNNResult>().ToList();
AllResults = GKRList.OrderBy(o => o.Distance).ToList().Cast <iKNNResult>().ToList();
thisQueryReport = new GroupingKNNReport(AllResults.Cast <GroupingKNNResult>().ToList(), Ordering.Ascending);
}
else
{
}
if (KSpecified && K <= AllResults.Count)
{
List <iKNNResult> Outlist = new List <iKNNResult>();
for (int i = 0; i < K; i++)
{
Outlist.Add(AllResults[i]);
}
//AllKNNResults = Outlist;
if (thisFormResultType == typeof(UserQueryResult))
{
thisQueryReport = new UserKNNReport(Outlist.Cast <UserKNNResult>().ToList(), Ordering.Ascending);
}
else if (thisFormResultType == typeof(GroupingQueryResult))
{
thisQueryReport = new GroupingKNNReport(Outlist.Cast <GroupingKNNResult>().ToList(), Ordering.Ascending);
}
else
{
}
}
else
{
AllKNNResults = AllResults;
}
if (thisFormResultType == typeof(UserQueryResult))
{
UserKNNReport ReportPointer = (UserKNNReport)thisQueryReport;
thisBindingSource.DataSource = ReportPointer.QRList;
//thisBindingSource.DataSource = (UserKNNReport)thisQueryReport..Cast<UserKNNResult>().ToList();
nNDataGridView.DataSource = thisBindingSource;
}
else if (thisFormResultType == typeof(GroupingQueryResult))
{
GroupingKNNReport ReportPointer = (GroupingKNNReport)thisQueryReport;
thisBindingSource.DataSource = ReportPointer.QRList;
nNDataGridView.DataSource = thisBindingSource;
}
else
{
}
}
public ConcurrentBag <T> ConvertBagToType <T>(T sampleForTValue, ConcurrentBag <dynamic> collectionToConvert)
{
return(new ConcurrentBag <T>(collectionToConvert.Cast <T>()));
}
public ClusteringOutput(List <QueryResult> QRList, RBAC RBACRef)
{
thisFormResultType = QRList[0].GetType();
parentReference = RBACRef;
ConcurrentBag <Tuple <string, DenseVector> > InputList = new ConcurrentBag <Tuple <string, DenseVector> >();
if (QRList[0].GetType() == typeof(UserQueryResult))
{
Parallel.ForEach <QueryResult>(QRList, QR =>
{
UserQueryResult UQR = (UserQueryResult)QR;
Tuple <string, DenseVector> TupleIn = new Tuple <string, DenseVector>(UQR.AccountName, (DenseVector)UQR.ReturnAccessVector());
InputList.Add(TupleIn);
});
}
else if (QRList[0].GetType() == typeof(GroupingQueryResult))
{
Parallel.ForEach <QueryResult>(QRList, QR =>
{
GroupingQueryResult GQR = (GroupingQueryResult)QR;
DenseVector VectorA;
if (parentReference.ClusterByRelativeCount)
{
VectorA = (DenseVector)GQR.ReturnAccessVector();
}
else
{
VectorA = (DenseVector)GQR.ReturnTF_IDFVector();
}
Tuple <string, DenseVector> TupleIn = new Tuple <string, DenseVector>(GQR.GroupingName, VectorA);
InputList.Add(TupleIn);
});
}
else
{
}
//add options on algo configtab on main form later
if (parentReference.ClusteringAlgoType == typeof(HACAlgo))
{
thisAlgo = new HACAlgo(InputList.OrderBy(o => o.Item1).ToList(), parentReference.PreferredDistanceStyle, parentReference.HACStoppingMetric, parentReference.PreferredStoppingStyle);
}
else
{
thisAlgo = new KMeansPlusPlus(InputList.OrderBy(o => o.Item1).ToList(), parentReference.KMeansValue, parentReference.PreferredKMeansStoppingStyle, parentReference.KMeansMaxIter);
}
parentReference.statusLabelChanger($"Initialising {thisAlgo.GetType().ToString().Split('.')[1]}, please be patient");
thisAlgo.InitialiseClusters();
while (!thisAlgo.Stopped)
{
thisAlgo.IterateOnce();
if (!thisAlgo.Stopped)
{
parentReference.statusLabelChanger($"Running {thisAlgo.GetType().ToString().Split('.')[1]}, iteration {thisAlgo.Iterator}");
}
}
//set all centroids as means in case mapping of clusters is required further
//down the line:
if (QRList[0].ReturnAccessVector().Count > 500)
{
thisAlgo.SetCentroidsAsMeansHighDimensionality();
}
else
{
thisAlgo.SetCentroidsAsMeans();
}
parentReference.statusLabelChanger("Creating Data View");
ConcurrentBag <QueryResult> ResultsBag = new ConcurrentBag <QueryResult>();
if (thisFormResultType == typeof(UserQueryResult))
{
foreach (Cluster Clust in thisAlgo.Clusters)
{
Parallel.ForEach <Tuple <string, DenseVector> >(Clust.MemberList, Member => {
UserQueryResult Target = (UserQueryResult)(from UQR in QRList.Cast <UserQueryResult>() where UQR.AccountName == Member.Item1 select UQR).ToList()[0];
ResultsBag.Add(new UserClusteringResult(Target, Clust.ClusterID, Clust.ListPosition));
});
}
clusteringResultList = ResultsBag.Cast <UserClusteringResult>().OrderBy(o => o.ClusterIndex).ToList <QueryResult>();
}
else if (thisFormResultType == typeof(GroupingQueryResult))
{
foreach (Cluster Clust in thisAlgo.Clusters)
{
Parallel.ForEach <Tuple <string, DenseVector> >(Clust.MemberList, Member => {
GroupingQueryResult Target = (GroupingQueryResult)(from GQR in QRList.Cast <GroupingQueryResult>().ToList() where GQR.GroupingName == Member.Item1 select GQR).ToList <GroupingQueryResult>()[0];
ResultsBag.Add(new GroupingClusteringResult(Target, Clust.ClusterID, Clust.ListPosition));
});
}
clusteringResultList = ResultsBag.Cast <GroupingClusteringResult>().OrderBy(o => o.ClusterIndex).ToList <QueryResult>();
}
else
{
}
parentReference.statusLabelChanger("Idle");
InitializeComponent();
this.Text = $"Clustering Results from {thisAlgo.Iterator} Iterations, using {thisAlgo.GetType().ToString().Split('.')[1]}, {thisAlgo.Clusters.Count} Clusters";
thisBindingSource = new BindingSource();
if (thisFormResultType == typeof(UserQueryResult))
{
//needs a bit of casting to allow datagridview to access type-specific public properties
thisQR = new UserClusteringReport(clusteringResultList.Cast <UserClusteringResult>().ToList(), Ordering.Ascending);
UserClusteringReport ReportReference = (UserClusteringReport)thisQR;
thisBindingSource.DataSource = ReportReference.QRList;
clustersDataGridView.DataSource = thisBindingSource;
}
else
{
thisQR = new GroupingClusteringReport(clusteringResultList.Cast <GroupingClusteringResult>().ToList(), Ordering.Ascending);
GroupingClusteringReport ReportReference = (GroupingClusteringReport)thisQR;
thisBindingSource.DataSource = ReportReference.QRList;
clustersDataGridView.DataSource = thisBindingSource;
}
}