static void printData(int user1, int user2)
{
int[] users = { user1, user2 };
StrategyContext strategy1 = new StrategyContext(new Euclidian());
StrategyContext strategy2 = new StrategyContext(new Manhattan());
StrategyContext strategy3 = new StrategyContext(new Pearsson());
StrategyContext strategy4 = new StrategyContext(new Cosine(), false);
Dictionary <int, Dictionary <int, double> > data = Program.getData();
data = DataParser.filterData(data, users[0], users[1], true);
var noDelData = DataParser.filterData(data, users[0], users[1], false);
if (data[users[0]].Values.Count == 0)
{
Console.WriteLine("There's no overlap between users " + user1.ToString() + " and " + user2.ToString());
}
else
{
var tuple = DataParser.splitDictionaries(data);
var noDelTuple = DataParser.splitDictionaries(noDelData);
Console.WriteLine("User " + users[0].ToString() + " -VS- User " + users[1].ToString());
Console.WriteLine("Euclidian - " + strategy1.algorithm(tuple).ToString());
Console.WriteLine("Manhattan - " + strategy2.algorithm(tuple).ToString());
Console.WriteLine("Pearsson - " + strategy3.algorithm(tuple).ToString());
Console.WriteLine("Cosine - " + strategy4.algorithm(noDelTuple));
Console.WriteLine();
}
}
static void printNearest(int target, StrategyContext strategy, int max = 3)
{
var data = Program.getData();
var NN = strategy.NearestNeighbor(data, target, 0.35, max);
Console.WriteLine("Nearest Neighbors to " + NN.Item1.ToString() + " - " + strategy.strategy.GetType());
foreach (var item in NN.Item2.OrderByDescending((variable) => variable.similarity))
{
Console.WriteLine(item.userId.ToString() + " - " + item.similarity.ToString());
}
Console.WriteLine();
}
public static void printData(int user1, int user2)
{
int[] users = { user1, user2 };
StrategyContext strategy1 = new StrategyContext(new Euclidian());
StrategyContext strategy2 = new StrategyContext(new Manhattan());
StrategyContext strategy3 = new StrategyContext(new Pearsson());
var data = DataParser.filterData(DataParser.write2DArray("./userData.data", ","), users[0], users[1], true);
var dataNoDel = DataParser.filterData(data, users[0], users[1], false);
var tuple = DataParser.splitDictionaries(data);
var tupleNoDel = DataParser.splitDictionaries(dataNoDel);
////////////////////// FRONTEND \\\\\\\\\\\\\\\\\\\\\\
Console.WriteLine("User " + users[0].ToString() + " -VS- User " + users[1].ToString());
Console.WriteLine("Euclidian - " + strategy1.algorithm(tuple).ToString());
Console.WriteLine("Manhattan - " + strategy2.algorithm(tuple).ToString());
Console.WriteLine("Pearsson - " + strategy3.algorithm(tupleNoDel).ToString());
Console.WriteLine();
}
static void printPrediction(int target, StrategyContext strategy, int productId = 101)
{
var data = Program.getData();
Console.WriteLine("Predicted Rating user " + target.ToString() + " - Product " + productId.ToString() + " - " + strategy.PredictedRating(data, target, productId).ToString());
}
