public RecommendationEvaluator(IBookRecommender recommender, INearestNeighborsSearch nearestNeighbors,
ICollaborativeFilteringHelpers helpers, IUsersSelector selector)
{
_recommender = recommender;
_nearestNeighbors = nearestNeighbors;
_helpers = helpers;
_selector = selector;
}
public UserBasedCollaborativeFiltering(
IBookRecommender recommender,
INearestNeighborsSearch nearestNeighbors,
IUsersSelector selector)
{
_recommender = recommender;
_nearestNeighbors = nearestNeighbors;
_selector = selector;
}
public UserBasedCollaborativeFilteringTests()
{
_nearestNeighbors = Substitute.For <INearestNeighborsSearch>();
_recommender = Substitute.For <IBookRecommender>();
_selector = Substitute.For <IUsersSelector>();
_settings = new TestSettings();
_sut = new UserBasedCollaborativeFiltering(_recommender, _nearestNeighbors, _selector);
}
public NearestNeighborsSearchTests()
{
_usersSelector = Substitute.For <IUsersSelector>();
_helpers = new TestHelpers();
_settings = new TestSettings
{
SimilarityDistance = DistanceSimilarityEnum.PearsonSimilarity,
NumOfNeighbors = 2
};
_sut = new NearestNeighborsSearch(_usersSelector);
}
public RecommendationEvaluatorTests()
{
_nearestNeighbors = Substitute.For <INearestNeighborsSearch>();
_recommender = Substitute.For <IBookRecommender>();
_selector = Substitute.For <IUsersSelector>();
_testHelpers = new TestHelpers();
_cfHelpers = Substitute.For <ICollaborativeFilteringHelpers>();
_settings = new TestSettings
{
Id = 1
};
_sut = new RecommendationEvaluator(_recommender, _nearestNeighbors, _cfHelpers, _selector);
}
static void Main(string[] args)
{
var builder = new ContainerBuilder();
var container = builder.ConfigureContainer();
_helper = container.GetInstance <CollaborativeFilteringHelpers>();
_evaluator = container.GetInstance <IRecommendationEvaluator>();
_selector = container.GetInstance <IUsersSelector>();
_settings = container.GetInstance <ISettings>();
if (args.Length < 1)
{
PrintIntro();
return;
}
else
{
string UserId;
switch (args[0])
{
case "-user":
if (args.Length < 2)
{
Console.WriteLine("Provide user id");
UserId = Console.ReadLine();
}
else
{
UserId = args[1];
}
if (EvaluateScoreForUser(UserId) == false)
{
return;
}
break;
case "-all-users":
if (args.Length < 3)
{
Console.WriteLine("Evaluate for parameters from config file");
PrintSettings();
EvaluateScoresForAllUsers(deafultPath);
}
else
{
if (int.TryParse(args[1], out int n) && int.TryParse(args[2], out int k))
{
EvaluateForSpecifiedParameters(n, k);
}
else
{
Console.WriteLine("Wrong user id");
return;
}
}
break;
case "-search":
if (args.Length < 2)
{
Console.WriteLine("Provide user id");
UserId = Console.ReadLine();
}
else
{
UserId = args[1];
}
if (EvaluateForVariousParametersSets(UserId) == false)
{
return;
}
break;
default:
Console.WriteLine($"Invalid command: {args[0]}");
return;
}
}
}
public NearestNeighborsSearch(IUsersSelector usersSelector)
{
_usersSelector = usersSelector;
}
