public AnalyzeEngine(bool tf)
{
categoryPoints = new ConcurrentDictionary <string, double>();
this.Categorie = CheckinOperations.getCategorie();
pCategories = CheckinOperations.getPlaceCategories();
likeCategories = CheckinOperations.listLikeCategories();
}
public RecommendationEngine()
{
categories = CheckinOperations.getCategorie();
places = CheckinOperations.getPlaces();
pCategories = CheckinOperations.getPlaceCategories();
aEng = new AnalyzeEngine();
}
/// <summary>
/// Thresholds
/// </summary>
/// <param name="Popularity"></param>
/// <param name="CategoryQuality"></param>
public Engine(double Popularity, double CategoryQuality)
{
PopularityThreshold = Popularity;
CategoryQualityThreshold = CategoryQuality;
places = CheckinOperations.getPlaces().ToList();
placeCategories = CheckinOperations.getPlaceCategories();
CATEGORIES = CheckinOperations.getCategorie();
UserCheckins = CheckinOperations.listCheckIns();
checkinUser = CheckinOperations.listCheckInsReturnedUser();
}
public string GenerateData(string arff)
{
string data = "@data\n";
var userList = CheckinOperations.getUsers();
List <ArffData> datas = new List <ArffData>();
foreach (var user in userList)
{
ArffData d = new ArffData();
d.Name = user.USERNAME;
d.Categorie = getDefaultData();
var checkins = CheckinOperations.getCheckIns(user.USERID);
foreach (var checkin in checkins)
{
var categories = CheckinOperations.getPlaceCategories(checkin.PLACEID.Value);
foreach (var catPlace in categories)
{
var cat = CheckinOperations.getCategory(catPlace.CATEGORIEID.Value);
d.Categorie[cat.NAME] += 1;
}
}
d.CheckinCount = checkins.Count;
datas.Add(d);
}
foreach (var d in datas)
{
string row = string.Empty;
row += d.Name + ",";
foreach (var cat in d.Categorie)
{
if (cat.Value == 0)
{
row += cat.Value.ToString().Replace(",", ".") + ",";
}
else
{
float result = ((float)cat.Value) / (float)d.CheckinCount;
row += result.ToString().Replace(",", ".") + ",";
}
}
row = row.Substring(0, row.Length - 1);
data += row + "\n";
}
arff = arff.Replace("@DATA", data + "\n\n");
return(arff);
}
public void _Load()
{
categoryPoints = new ConcurrentDictionary <string, double>();
this.Categorie = CheckinOperations.getCategorie();
Engine eng = new Engine(popularityThreshold, CategoryQualityThreshold);
List <string> list_lines = new List <string>();
Parallel.ForEach(Categorie, (cat) =>
{
var catPoint = eng.getCategoryPoint(cat.CATEGORIEID);
categoryPoints.AddOrUpdate(cat.NAME, catPoint, (key, oldvalue) => oldvalue + catPoint);
});
pCategories = CheckinOperations.getPlaceCategories();
likeCategories = CheckinOperations.listLikeCategories();
//var catPoint = eng.getCategoryPoint(896);
//categoryPoints.AddOrUpdate("Amphitheater", catPoint, (key, oldvalue) => oldvalue + catPoint);
}
