public async Task <bool> UpdateSimilarityScores(Guid userId)
{
var oldScores = await _context.SimilarityScores.Where(x => x.FromUserId == userId).ToListAsync();
var features = (await _featureApplication.GetFeatures()).Where(x => x.IsCalculated).ToList();
var columns = features.Count;
var users = await GetUsersToCalculate(userId);
int rows = users.Count;
double[,] usersMatrix = new double[rows, columns];
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < columns; j++)
{
var vm = users[i].FeatureViewModels
.Where(x => x.FeatureId == features[j].Id)
.FirstOrDefault();
if (vm == null)
{
usersMatrix[i, j] = -1;
}
else
{
if (!vm.IsCalculated)
{
usersMatrix[i, j] = 0;
continue;
}
usersMatrix[i, j] = vm.Rate * vm.weight;
}
}
}
SimilarityMatrix m = new SimilarityMatrix
{
Row = rows,
Column = columns,
Matrix = usersMatrix
};
List <double> kq = new List <double>();
kq = m.SimilarityCalculate();
users.RemoveAt(0);
var similarityScores = new List <SimilarityScore>();
for (int i = 1; i < kq.Count; i++)
{
users[i - 1].Point = kq[i];
var score = new SimilarityScore()
{
FromUserId = userId,
ToUserId = users[i - 1].UserId,
Score = kq[i]
};
similarityScores.Add(score);
}
try
{
_context.SimilarityScores.AddRange(similarityScores);
_context.SimilarityScores.RemoveRange(oldScores);
await _context.SaveChangesAsync();
return(true);
}
catch
{
return(false);
}
}
public async Task <IActionResult> GetFeatures()
{
var Gender = new List <string>();
List <EGender> Genders = Enum.GetValues(typeof(EGender))
.Cast <EGender>()
.ToList();
foreach (var item in Genders)
{
Gender.Add(item.ToString());
}
var FindPeople = new List <string>();
List <EGender> findPeople = Enum.GetValues(typeof(EGender))
.Cast <EGender>()
.ToList();
foreach (var item in findPeople)
{
FindPeople.Add(item.ToString());
}
var Job = new List <string>();
List <EJob> Jobs = Enum.GetValues(typeof(EJob))
.Cast <EJob>()
.ToList();
foreach (var item in Jobs)
{
Job.Add(item.ToString());
}
var Location = new List <string>();
List <ELocation> Locations = Enum.GetValues(typeof(ELocation))
.Cast <ELocation>()
.ToList();
foreach (var item in Locations)
{
Location.Add(item.ToString());
}
//var TypeAccount = new List<string>();
//List<ETypeAccount> TypeAccounts = Enum.GetValues(typeof(ETypeAccount))
// .Cast<ETypeAccount>()
// .ToList();
//foreach (var item in TypeAccounts)
//{
// TypeAccount.Add(item.ToString());
//}
//var UserStatus = new List<string>();
//List<EUserStatus> UserStatuses = Enum.GetValues(typeof(EUserStatus))
// .Cast<EUserStatus>()
// .ToList();
//foreach (var item in UserStatuses)
//{
// UserStatus.Add(item.ToString());
//}
var AgeGroup = new List <string>();
List <EAgeGroup> ageGroups = Enum.GetValues(typeof(EAgeGroup))
.Cast <EAgeGroup>()
.ToList();
foreach (var item in ageGroups)
{
AgeGroup.Add(item.ToString());
}
var features = await _featureApplication.GetFeatures();
var response = new
{
//AtmosphereLike,
//Body,
//Character,
//DrinkBeer,
//Education,
//FavoriteMovie,
Gender,
FindPeople,
Job,
//LifeStyle,
Location,
//Marriage,
//MostValuable,
//Religion,
//Smoking,
//LikeTechnology,
//LikePet,
//PlaySport,
//Travel,
//Game,
//Shopping,
AgeGroup,
features
};
return(Ok(response));
}
public async Task <IActionResult> GetFeatures()
{
var Gender = new List <string>();
List <EGender> Genders = Enum.GetValues(typeof(EGender))
.Cast <EGender>()
.ToList();
foreach (var item in Genders)
{
Gender.Add(item.ToString());
}
var FindPeople = new List <string>();
List <EGender> findPeople = Enum.GetValues(typeof(EGender))
.Cast <EGender>()
.ToList();
foreach (var item in findPeople)
{
FindPeople.Add(item.ToString());
}
var Job = new List <string>();
List <EJob> Jobs = Enum.GetValues(typeof(EJob))
.Cast <EJob>()
.ToList();
foreach (var item in Jobs)
{
Job.Add(item.ToString());
}
var Location = new List <string>();
List <ELocation> Locations = Enum.GetValues(typeof(ELocation))
.Cast <ELocation>()
.ToList();
foreach (var item in Locations)
{
Location.Add(item.ToString());
}
//var TypeAccount = new List<string>();
//List<ETypeAccount> TypeAccounts = Enum.GetValues(typeof(ETypeAccount))
// .Cast<ETypeAccount>()
// .ToList();
//foreach (var item in TypeAccounts)
//{
// TypeAccount.Add(item.ToString());
//}
//var UserStatus = new List<string>();
//List<EUserStatus> UserStatuses = Enum.GetValues(typeof(EUserStatus))
// .Cast<EUserStatus>()
// .ToList();
//foreach (var item in UserStatuses)
//{
// UserStatus.Add(item.ToString());
//}
var AgeGroup = new List <string>();
List <EAgeGroup> ageGroups = Enum.GetValues(typeof(EAgeGroup))
.Cast <EAgeGroup>()
.ToList();
foreach (var item in ageGroups)
{
AgeGroup.Add(item.ToString());
}
var features = await _featureApplication.GetFeatures();
var response = new
{
Gender,
FindPeople,
Job,
Location,
AgeGroup,
features
};
return(Ok(response));
}
public async Task <IActionResult> GetFeatures()
{
var features = await _featureApplication.GetFeatures();
return(Ok(features));
}