private static void AssignmentOnedotEight(Dictionary <int, Dictionary <int, double> > ratings, int targetUser, Similarity similarityType,
double threshold, int maxNeighhbours, int maxResults, int?minimumRatings)
{
Console.WriteLine("\n\n## Assignment 1.8");
Console.WriteLine("------------------------------------------");
Console.WriteLine("Rating predictions for user " + targetUser + " with a minimum of " + minimumRatings + " items rated");
var neighbours = new NearestNeighbour().FindNearestNeighbour(ratings, targetUser, threshold, maxNeighhbours, similarityType);
var predictions = new PredictRating().PredictTopRatings(ratings, neighbours, targetUser,
0.35, 25, 8, minimumRatings, similarityType);
foreach (var prediction in predictions)
{
Console.WriteLine("\tUser " + targetUser + " will rate item " + prediction.Key + " with a rating of " + prediction.Value);
}
}
private static void AssignmentOnedotFour(Dictionary <int, Dictionary <int, double> > ratings, int targetUser, Similarity similarityType)
{
Console.WriteLine("\n\n## Assignment 1.4");
Console.WriteLine("------------------------------------------");
Console.WriteLine("Rating predictions for user " + targetUser);
List <int> items = new List <int>();
items.Add(101);
foreach (var item in items)
{
var prediction = new PredictRating().PredictRatingByNeighbours(ratings, targetUser, item, 0.35,
3, similarityType);
Console.WriteLine("\tUser " + targetUser + " will rate item " + item + " with a rating of " + prediction);
}
}
