public NeighborsSeeder(UserManager <User> userManager, RoleManager <Role> roleManager, NeighborsContext context, IMLEngine ml)
{
_userManager = userManager;
_roleManager = roleManager;
_context = context;
_ml = ml;
}
public ProductsRepository(NeighborsContext neighborsContext, ICategoriesRepository catRepo, SignInManager <User> signinManager, IMLEngine ml)
{
_context = neighborsContext;
_catRepo = catRepo;
_signinManager = signinManager;
_ml = ml;
}
public double Learn()
{
(List <DataSet> learnDataSets, List <DataSet> scoreDataSets) = SplitDataSet(_dataSetList);
double[][] learnData =
learnDataSets
.SelectMany(ds => ds.Items, (ds, item) => new { ds, item })
.SelectMany(c => c.item.charactersDouble)
.ToArray();
int[] learnLabel =
learnDataSets
.SelectMany(ds => ds.Items, (ds, item) => new { ds, item })
.SelectMany(c => c.item.charactersLabelsInt)
.ToArray();
double[][] testData =
scoreDataSets
.SelectMany(ds => ds.Items, (ds, item) => new { ds, item })
.SelectMany(c => c.item.charactersDouble)
.ToArray();
int[] testLabel =
scoreDataSets
.SelectMany(ds => ds.Items, (ds, item) => new { ds, item })
.SelectMany(c => c.item.charactersLabelsInt)
.ToArray();
if (Engine != null)
{
return(Engine.Learn(learnData, learnLabel, testData, testLabel));
}
Log.Write(this.GetType(), "No ML engine defined, selecting automatically");
List <Type> engineList = Assembly
.GetExecutingAssembly()
.GetTypes()
.Where(t => !t.IsInterface && t.IsClass && MLEngineNamespace.Equals(t.Namespace) && t.Name.EndsWith(MLEngineSuffix))
.ToList();
List <(IMLEngine, double)> resultList = new List <(IMLEngine, double)>();
Parallel.ForEach(engineList, e =>
{
IMLEngine engine = Activator.CreateInstance(e) as IMLEngine;
double score = engine.Learn(learnData, learnLabel, testData, testLabel);
resultList.Add((engine, score));
});
(IMLEngine, double)best = resultList.OrderByDescending(v => v.Item2).First();
Log.Write(this.GetType(), $"{best.Item1.GetType().Name} selected with score {best.Item2}");
Engine = best.Item1;
return(best.Item2);
}
public CaptchaDecoder(IMLEngine engine)
{
this.Id = Guid.NewGuid();
this.Engine = engine;
Log.Write(this.GetType(), $"Decoder created with Engine {Engine.GetType().Name} and ID {Id}");
}
public OffersEngine(IMLEngine mlBL, SignInManager <User> signInManager)
{
_bl = mlBL;
_signInManager = signInManager;
}
