public List <IEntitySpecification> Calculate(IEnumerable <IEntitySpecification> entitySpecifications, int countClusters, int countTry)
{
var isChanged = true;
var ct = 0;
_items = entitySpecifications.ToList();
_clusters = _clusterService.Init(countClusters).ToList();
_items = InitClustering(countClusters, 0).ToList();
Update();
while (isChanged && ct < countTry)
{
++ct;
isChanged = Assign();
Update();
}
return(_items);
}