public List<Recommendation_Meta_Item> GetListR1R4_ForNewUsers(Predict_DAO_MCol dao, Dictionary<string, double> UCA)
{
double M = 1;
if (UCA.ContainsKey("MEANS_VALUE"))
M = UCA["MEANS_VALUE"];
List<Recommendation_Meta_Item> list = new List<Recommendation_Meta_Item>();
//Content is cleared by M.C. Nguyen 19.9.2015
return list;
}
public List<ADDGAP> GetListOfNewGAP(Predict_DAO_MCol a)
{
List<ADDGAP> lst = new List<ADDGAP>();
try
{
lst = a.GetListOfNewGAP();
}
catch (Exception)
{
throw;
}
return lst;
}
public List<ClusterInfo> GetListCluster()
{
Predict_DAO_MCol a = new Predict_DAO_MCol();
List<ClusterInfo> list = new List<ClusterInfo>();
try
{
a.beginTransaction();
list = a.GetListCluster();
a.commitTransaction();
return list;
}
catch (Exception ex)
{
a.rollbackTransaction();
throw ex;
}
}
public void R1(Predict_DAO_MCol dao, RecommdationSchedule schedule)
{
List<Recommendation_Meta_Item> traditionalUsers1 = this.getListRecommendation_R1_TraditionalUsers(dao);
List<Recommendation_Meta_Item> traditionalUsers2 = this.GetQuantityTraditionalUsers(dao, traditionalUsers1);
this.Normaliser(traditionalUsers2);
dao.InsertList(traditionalUsers2, schedule);
}
public void R1(Predict_DAO_MCol dao, RecommdationSchedule schedule, int nbR1, Dictionary<string, double> UCA, List<QTY_GAP> list)
{
//Get recommendations for traditional users
List<Recommendation_Meta_Item> lrc_ForUserTra = getListRecommendation_R1_TraditionalUsers(dao, nbR1);
lrc_ForUserTra = GetQuantityTraditionalUsers(dao, lrc_ForUserTra, UCA);
Normaliser(lrc_ForUserTra);
AddGAPtoListRecommends(list, lrc_ForUserTra);
dao.InsertList(lrc_ForUserTra, schedule);
}
//THis function get a price of MetaItemID that correspondance with the quantity
//----------------------------------------------------------------------------------
public double GetPrice(string MetaItemID, int QTY)
{
double Price = 0;
Predict_DAO_MCol a = new Predict_DAO_MCol();
try
{
Price = a.GetPrice(MetaItemID, QTY);
}
catch (Exception)
{
throw;
}
return Price;
}
public void LoadRecommendation(string LoginID)
{
Predict_DAO_MCol dao = null;
RecommdationSchedule schedule = new RecommdationSchedule();
schedule.Log = "Recommendation";
schedule.LoginID = LoginID;
Predict_MC predictMC = new Predict_MC();
try
{
dao = new Predict_DAO_MCol();
dao.beginTransaction();
RecommdationSchedule currentSchedule = dao.addRecommdationSchedule(schedule);
//Settings st = getSettings();
Settings r = predictMC.GetRecommendationSeting(dao);
Dictionary<string, double> UCA = predictMC.getUCA(dao);
//Data service
IntergrationManager manager = new IntergrationManager();
manager.execute();
//Clustering service
new ClusterUsers().startClusteringAuto();
/*
*
*
* this paragraph need to rewrite
*
* */
//calculate confident matrix - c4
ComputeConfident(dao);
// calculate dist matrix - C5
ComputeDIST(dao);
//=====================================================================================
dao.CLEAN_RECOMMENDATION();
// R1
DateTime startC6 = DateTime.Now;
// predictMC.R1(dao, currentSchedule, r.nbR1, UCA, lstGAP);
predictMC.R1(dao, currentSchedule);
DateTime endC6 = DateTime.Now;
int time_Seconds_CLC6 = Convert.ToInt32((endC6 - startC6).TotalSeconds);
//////R2
//DateTime startC7 = DateTime.Now;
//setRCPurchasedItems(dao, currentSchedule, r.nbR2, lstGAP);
//DateTime endC7 = DateTime.Now;
//int time_Seconds_CLC7 = Convert.ToInt32((endC7 - startC7).TotalSeconds);
//// R3
DateTime startC8 = DateTime.Now;
// predictMC.R3(dao, currentSchedule, r.nbR3, UCA, lstGAP);
predictMC.R3(dao, currentSchedule);
DateTime endC8 = DateTime.Now;
int time_Seconds_CLC8 = Convert.ToInt32((endC8 - startC8).TotalSeconds);
//// R4
DateTime startC9 = DateTime.Now;
// predictMC.R4(dao, currentSchedule, r.paramR4, UCA, lstGAP);
predictMC.R4(dao, currentSchedule);
DateTime endC9 = DateTime.Now;
int time_Seconds_CLC9 = Convert.ToInt32((endC9 - startC9).TotalSeconds);
////Get R1R4 for new users
DateTime startR1R4NewUsers = DateTime.Now;
predictMC.R1R4_FOR_NEW_USERS(dao, currentSchedule, UCA);
DateTime endR1R4NewUsers = DateTime.Now;
int time_second_R1R4NewUsers = Convert.ToInt32((endR1R4NewUsers - startR1R4NewUsers).TotalSeconds);
//GetPrice
//dao.GetPrice();
Console.WriteLine("FINISH");
// build statistic log
List<string[]> lstStatic = dao.getStaticsData();
foreach (string[] statics in lstStatic)
{
schedule.Log += statics[0] + statics[1] + ". ";
}
schedule.Log += "Time to find LRS01 : " + time_Seconds_CLC6.ToString() + ". ";
//schedule.Log += "Time to find LRS02 : " + time_Seconds_CLC7.ToString() + ". ";
schedule.Log += "Time to find LRS03 : " + time_Seconds_CLC8.ToString() + ". ";
schedule.Log += "Time to find LRS04 : " + time_Seconds_CLC9.ToString() + ". ";
schedule.Log += "Time to find recommendations for new clients : " + time_second_R1R4NewUsers.ToString() + ". ";
schedule.Log += "System successfully stopped at " + DateTime.Now.ToString();
dao.updateRecommdationSchedule(schedule);
dao.commitTransaction();
}
catch (Exception ex)
{
dao.rollbackTransaction();
throw ex;
}
}
//public List<Recommendation_Meta_Item> GetListRecommendC6_ForTraditionalUser()
//{
// Predict_DAO_MC a = new Predict_DAO_MC();
// List<Recommendation_Meta_Item> list = new List<Recommendation_Meta_Item>();
// List<Recommendation_Meta_Item> RC = new List<Recommendation_Meta_Item>();
// try
// {
// a.beginTransaction();
// List<User> list_users_tra = a.getTraditionalUser_UnBlocked();
// foreach (User u in list_users_tra)
// {
// RC = a.GetRecommendC6_ForTraditionalUser(u, 1);
// list.AddRange(RC);
// }
// a.commitTransaction();
// return list;
// }
// catch (Exception ex)
// {
// a.rollbackTransaction();
// throw ex;
// }
//}
//----------------------------------------------------------------------------------------------
//This function calls GetRecommendC6_ForTraditionalUser from Predict_DAO_MC to give R1
//Created by MC. NGUYEN
//Corrected by MC. NGUYEN, 22.10.2014
//Changed: 24.10.2014: the formule to calculate SCORE for each Meta Produit (based on Count(*)).
//----------------------------------------------------------------------------------------------
public List<Recommendation_Meta_Item> getListRecommendation_R1_TraditionalUsers(Predict_DAO_MCol a)
{
List<Recommendation_Meta_Item> list1 = new List<Recommendation_Meta_Item>();
List<Recommendation_Meta_Item> list2 = new List<Recommendation_Meta_Item>();
List<string> list3 = new List<string>();
List<string> list4 = new List<string>();
foreach (string cluster in a.GetListClusterID())
{
foreach (string u in a.GetListUser_OfCluster(cluster))
{
List<Recommendation_Meta_Item> forTraditionalUser = a.GetRecommendC6_ForTraditionalUser(u, 2);
list1.AddRange((IEnumerable<Recommendation_Meta_Item>)forTraditionalUser);
}
}
return list1;
}
public List<Recommendation_Meta_Item> GetQuantityTraditionalUsers(Predict_DAO_MCol a, List<Recommendation_Meta_Item> list)
{
for (int index = 0; index < list.Count; ++index)
{
double qualtityTraditionalUser = a.GetQualtityTraditionalUser(list[index]);
list[index].Quantity = qualtityTraditionalUser == 0.0 ? 1.0 : (double)(int)qualtityTraditionalUser;
}
return list;
}
public void R3(Predict_DAO_MCol dao, RecommdationSchedule schedule, int nbR3, Dictionary<string, double> UCA, List<QTY_GAP> lst)
{
List<Recommendation_Meta_Item> list = GetRecommendationR3(dao, nbR3);
list = GetQuantityTraditionalUsersR3(dao, list, UCA);
dao.RemoveDuplicateR3R1();
Normaliser(list);
AddGAPtoListRecommends(lst, list);
dao.InsertList(list, schedule);
}
//----------------------------------------------------------------------------------------------
//This function gives R3 AND QUANTITY (with a number of recommendations for each user as input)
//----------------------------------------------------------------------------------------------
public List<Recommendation_Meta_Item> GetRecommendationR3(Predict_DAO_MCol a, int nbR3)
{
List<Recommendation_Meta_Item> list = new List<Recommendation_Meta_Item>();
//Content is cleared by M.C. Nguyen 19.9.2015
return list;
}
//have formular here
public List<Recommendation_Meta_Item> GetRecommendationR3(Predict_DAO_MCol a)
{
List<Recommendation_Meta_Item> list1 = new List<Recommendation_Meta_Item>();
Recommendation_Meta_Item recommendationMetaItem1 = new Recommendation_Meta_Item();
List<CONF> list2 = new List<CONF>();
List<DIST> list3 = new List<DIST>();
List<string> list4 = new List<string>();
List<string> list5 = new List<string>();
List<string> list6 = new List<string>();
List<U_I_Q> list7 = new List<U_I_Q>();
foreach (string cluster in a.GetListClusterID())
{
List<CONF> confOfCluster = a.GetCONF_OfCluster(cluster);
List<DIST> distOfCluster = a.GetDIST_OfCluster(cluster);
List<string> listUserOfCluster = a.GetListUser_OfCluster(cluster);
List<U_I_Q> traditionalUsersMore = a.GetQuantityTraditionalUsers_More(cluster);
foreach (string user in listUserOfCluster)
{
List<string> notPurchasedOfUser = a.GetListMetaItemNotPurchased_OfUser(user, cluster);
List<string> listMetaItemOfUser = a.GetListMetaItem_OfUser(user);
string str = "";
double num1 = 0.0;
for (int index1 = 0; index1 < notPurchasedOfUser.Count; ++index1)
{
double num2 = 0.0;
double num3 = 0.0;
double num4 = 1.0;
for (int index2 = 0; index2 < listMetaItemOfUser.Count; ++index2)
{
for (int index3 = 0; index3 < confOfCluster.Count; ++index3)
{
if (confOfCluster[index3].MetaItemSource.Equals(listMetaItemOfUser[index2]) && confOfCluster[index3].MetaItemDestination.Equals(notPurchasedOfUser[index1]))
{
num3 = confOfCluster[index3].Confident;
break;
}
}
for (int index3 = 0; index3 < distOfCluster.Count; ++index3)
{
if (distOfCluster[index3].MetaItemDestination.Equals(listMetaItemOfUser[index2]) && distOfCluster[index3].MetaItemDestination.Equals(notPurchasedOfUser[index1]))
{
num4 = distOfCluster[index3].Distance;
break;
}
}
if (num4 != 0.0)
num2 += num3 / num4;
}
if (num1 < num2 / (double)listMetaItemOfUser.Count)
{
num1 = num2;
str = notPurchasedOfUser[index1];
}
}
if (num1 != 0.0)
{
Recommendation_Meta_Item recommendationMetaItem2 = new Recommendation_Meta_Item();
recommendationMetaItem2.UserID = user;
recommendationMetaItem2.MetaItemID = str;
recommendationMetaItem2.RecommendType = ConstantValues.RC_TYPE_LRS03;
recommendationMetaItem2.Quantity = 0.0;
for (int index = 0; index < traditionalUsersMore.Count; ++index)
{
if (traditionalUsersMore[index].MetaItemID.Equals(str))
{
recommendationMetaItem2.Quantity = traditionalUsersMore[index].QTY;
break;
}
}
recommendationMetaItem2.Score = num1;
list1.Add(recommendationMetaItem2);
}
}
}
return list1;
}
public List<Recommendation_Meta_Item> GetQuantityTraditionalUsersR3(Predict_DAO_MCol a, List<Recommendation_Meta_Item> list, Dictionary<string, double> UCA)
{
double QTY;
double M = 1;
if (UCA.ContainsKey("MEANS_VALUE"))
M = UCA["MEANS_VALUE"];
for (int i = 0; i < list.Count; i++)
{
QTY = a.GetQualtityTraditionalUser(list[i]);
if (QTY != 0)
list[i].Quantity = (int)(list[i].Quantity + QTY) / 2;
//----------------------------------------
if (UCA.ContainsKey(list[i].UserID))
{
list[i].Quantity = (int)list[i].Quantity * (UCA[list[i].UserID] / M);
}
}
//--------------------
//a.commitTransaction();
return list;
//}
//catch (Exception ex)
//{
// a.rollbackTransaction();
// throw ex;
//}
}
public List<Recommendation_Meta_Item> GetQuantityTraditionalUsersR3(Predict_DAO_MCol a, List<Recommendation_Meta_Item> list)
{
for (int index = 0; index < list.Count; ++index)
{
double qualtityTraditionalUser = a.GetQualtityTraditionalUser(list[index]);
if (qualtityTraditionalUser != 0.0)
list[index].Quantity = (double)((int)(list[index].Quantity + qualtityTraditionalUser) / 2);
}
return list;
}
//---------------------------------------------------------------------------------------------
//This function call GetQualtityTraditionalUser to compute the quantity for each recommendations in the list
//---------------------------------------------------------------------------------------------
public List<Recommendation_Meta_Item> GetQuantityTraditionalUsers(Predict_DAO_MCol a, List<Recommendation_Meta_Item> list, Dictionary<string, double> UCA)
{
Int32 QTY;
double M = 1;
if (UCA.ContainsKey("MEANS_VALUE"))
M = UCA["MEANS_VALUE"];
for (int i = 0; i < list.Count; i++)
{
QTY = a.GetQualtityTraditionalUser(list[i]);
if (QTY > 0)
list[i].Quantity = QTY;
else
list[i].Quantity = 1;
if (UCA.ContainsKey(list[i].UserID))
{
list[i].Quantity = (int)list[i].Quantity * (UCA[list[i].UserID] / M);
}
}
return list;
}
public void R1R4_FOR_NEW_USERS(Predict_DAO_MCol dao, RecommdationSchedule schedule, Dictionary<string, double> UCA)
{
List<Recommendation_Meta_Item> lrc_ForNewUsers = GetListR1R4_ForNewUsers(dao, UCA);
// lrc_ForNewUsers = GetQuantityNewUsers(dao, lrc_ForNewUsers);
Normaliser(lrc_ForNewUsers);
dao.InsertListNewUser(lrc_ForNewUsers, schedule);
}
public void R4(Predict_DAO_MCol dao, RecommdationSchedule schedule)
{
List<Recommendation_Meta_Item> recommendationR4 = this.GetRecommendationR4(dao, 2.0);
this.Normaliser(recommendationR4);
dao.InsertList(recommendationR4, schedule);
}
public void R3(Predict_DAO_MCol dao, RecommdationSchedule schedule)
{
List<Recommendation_Meta_Item> recommendationR3 = this.GetRecommendationR3(dao);
List<Recommendation_Meta_Item> traditionalUsersR3 = this.GetQuantityTraditionalUsersR3(dao, recommendationR3);
this.Normaliser(traditionalUsersR3);
dao.InsertList(traditionalUsersR3, schedule);
}
public void RemoveDuplicateR3R1()
{
Predict_DAO_MCol a = new Predict_DAO_MCol();
try
{
a.RemoveDuplicateR3R1();
}
catch (Exception)
{
throw;
}
}
public List<Recommendation_Meta_Item> GetRecommendationR4(Predict_DAO_MCol a, double param)
{
List<Recommendation_Meta_Item> list1 = new List<Recommendation_Meta_Item>();
List<string> list2 = new List<string>();
List<string> list3 = new List<string>();
List<string> list4 = new List<string>();
Dictionary<string, double> dictionary1 = new Dictionary<string, double>();
Dictionary<string, double> dictionary2 = new Dictionary<string, double>();
Dictionary<string, double> dictionary3 = new Dictionary<string, double>();
Dictionary<string, double> dictionary4 = new Dictionary<string, double>();
Dictionary<string, string> dictionary5 = new Dictionary<string, string>();
List<string> listClusterId = a.GetListClusterID();
Dictionary<string, string> listNewItem = a.GetListNewItem();
foreach (string cluster in listClusterId)
{
try
{
Dictionary<string, double> listRateU = a.GetListRateU(cluster);
Dictionary<string, double> listRateF = a.GetListRateF(cluster);
foreach (KeyValuePair<string, double> keyValuePair1 in listRateU)
{
Dictionary<string, double> listRateUf = a.GetListRateUF(keyValuePair1.Key);
double num1 = 0.0;
string FamillyCode = "Not found";
List<string> list5 = new List<string>();
List<double> list6 = new List<double>();
foreach (KeyValuePair<string, double> keyValuePair2 in listRateF)
{
double num2;
if (listRateUf.ContainsKey(keyValuePair2.Key))
{
double num3 = keyValuePair2.Value;
double num4 = keyValuePair1.Value;
double num5 = keyValuePair2.Value;
num2 = param * num5 * (1.0 / num4 - 1.0 / num3);
}
else
num2 = 0.0;
if (num2 > num1)
{
num1 = num2;
FamillyCode = keyValuePair2.Key;
}
}
if (num1 != 0.0)
{
double num2 = (double)a.getQTYR4(keyValuePair1.Key, FamillyCode, 1);
foreach (KeyValuePair<string, string> keyValuePair2 in listNewItem)
{
if (keyValuePair2.Value.Equals(FamillyCode))
list1.Add(new Recommendation_Meta_Item()
{
UserID = keyValuePair1.Key,
RecommendType = ConstantValues.RC_TYPE_LRS04,
MetaItemID = keyValuePair2.Key,
Quantity = num2,
Score = num1
});
}
}
}
}
catch (Exception ex)
{
}
}
return list1;
}
public List<Recommendation_Meta_Item> GetQuantityNewUsers(Predict_DAO_MCol a, List<Recommendation_Meta_Item> list)
{
//Predict_DAO_MC a = new Predict_DAO_MC();
//List<U_I_Q> Cate_Item_QTY = new List<U_I_Q>();
//try
//{
// a.beginTransaction();
list = a.GetAllQuantity(list);
// a.commitTransaction();
return list;
//}
//catch (Exception ex)
//{
// a.rollbackTransaction();
// throw ex;
//}
}
public void R4(Predict_DAO_MCol dao, RecommdationSchedule schedule, double paramR4, Dictionary<string, double> UCA, List<QTY_GAP> lst)
{
List<Recommendation_Meta_Item> list = GetRecommendationR4(dao, paramR4, UCA);
Normaliser(list);
AddGAPtoListRecommends(lst, list);
dao.InsertList(list, schedule);
}
public List<Recommendation_Meta_Item> GetRecommendations(string sql)
{
Predict_DAO_MCol a = new Predict_DAO_MCol();
try
{
a.beginTransaction();
List<Recommendation_Meta_Item> list = a.GetRecommendations(sql);
a.commitTransaction();
return list;
}
catch (Exception ex)
{
a.rollbackTransaction();
throw ex;
}
}
public List<QTY_GAP> UpdateQTYGap(Predict_DAO_MCol a, List<ADDGAP> list)
{
List<QTY_GAP> lst = new List<QTY_GAP>();
try
{
a.UpdateGAP(list);
lst = a.GetGAP();
}
catch (Exception)
{
throw;
}
return lst;
}
public Settings GetRecommendationSeting(Predict_DAO_MCol a)
{
Settings st = new Settings();
try
{
List<Recommendation_Setting> listCs = a.GetRecommendationSetting();
if (null != listCs && listCs.Count > 0)
foreach (var item in listCs)
{
if (item.Key.Equals(ConstantValues.nb_R1))
{
foreach (var cs_detail in item.Values)
if (cs_detail.isDedault.Equals(true))
{
st.nbR1 = Convert.ToInt32(cs_detail.Value.Trim());
break;
}
}
else
if (item.Key.Equals(ConstantValues.nb_R2))
{
foreach (var cs_detail in item.Values)
if (cs_detail.isDedault.Equals(true))
{
st.nbR2 = Convert.ToInt32(cs_detail.Value.Trim());
break;
}
}
else if (item.Key.Equals(ConstantValues.nb_R3))
{
foreach (var cs_detail in item.Values)
if (cs_detail.isDedault.Equals(true))
{
st.nbR3 = Convert.ToInt32(cs_detail.Value.Trim());
break;
}
}
else if (item.Key.Equals(ConstantValues.param_R4))
{
foreach (var cs_detail in item.Values)
if (cs_detail.isDedault.Equals(true))
{
st.paramR4 = Convert.ToDouble(cs_detail.Value.Trim(), CultureInfo.CreateSpecificCulture("en-GB"));
break;
}
}
}
}
catch (Exception ex)
{
a.rollbackTransaction();
throw ex;
}
return st;
}
//---------------------------------------------------------------------------------------
//This function computes the DISTANCE matrix and inserts it into the database
//This is the distance between the two columns of the Rating Matrix
//---------------------------------------------------------------------------------------
public void ComputeDIST(Predict_DAO_MCol dao)
{
//dao.CLEAN_DIST_Matrix();
List<string> list_ClusterID = dao.getAllClusterID();
foreach (var item in list_ClusterID)
{
Dictionary<string, int> RM_dic_users = new Dictionary<string, int>();
Dictionary<string, int> RM_dic_items = new Dictionary<string, int>();
// Compute ratting matrix
List<MatrixItem> lstRMI = dao.getRattingMatrixItem_ByClusterID(item);
double[][] RattingMatrix = Util.toMatrix_MatrixItem(lstRMI, out RM_dic_users, out RM_dic_items);
if (RattingMatrix.Length > 0 & RM_dic_items.Count > 1)
{
double[][] DIST = new double[RattingMatrix[0].Length][];
for (int i = 0; i < RattingMatrix[0].Length; i++)
DIST[i] = new double[RattingMatrix[0].Length];
// Compute DIST Matrix
for (int i1 = 0; i1 < RattingMatrix[0].Length - 1; i1++)
for (int i2 = i1 + 1; i2 < RattingMatrix[0].Length; i2++)
{
double value = 0.0;
for (int t = 0; t < RattingMatrix.Length; t++)
value += Math.Pow(RattingMatrix[t][i1] - RattingMatrix[t][i2], 2);
value = Math.Sqrt(value);
DIST[i1][i2] = value;
DIST[i2][i1] = value;
}
if (DIST.Length > 0)
{
double max = DIST[0][0];
// Find Max
for (int i = 0; i < DIST.Length; i++)
{
double localMax = DIST[i].Max();
if (localMax > max)
max = localMax;
}
// Standardization
if (max != 0)
{
for (int i = 0; i < DIST.Length; i++)
for (int j = 0; j < DIST[0].Length; j++)
DIST[i][j] /= max;
}
// Save to Database
for (int i = 0; i < DIST.Length; i++)
for (int j = 0; j < DIST[0].Length; j++)
if (DIST[i][j] > 0)
{
MatrixItem matrixItem = new MatrixItem();
matrixItem.Row = Util.FindKeyByValue(RM_dic_items, i);
matrixItem.Column = Util.FindKeyByValue(RM_dic_items, j);
matrixItem.Cell = DIST[i][j];
matrixItem.ClusterID = item;
dao.setDIST_Matrix(matrixItem);
}
}
}
}
}
public Dictionary<string, double> getUCA(Predict_DAO_MCol dao)
{
Dictionary<string, double> lstUCA = new Dictionary<string, double>();
try
{
lstUCA = dao.getUCA();
}
catch (Exception)
{
lstUCA = null;
}
return lstUCA;
}
//---------------------------------------------------------------------------------------
//This function computes the Confident Matrix and Weight Matrix, forllowing the formulars
//---------------------------------------------------------------------------------------
public void ComputeConfident(Predict_DAO_MCol dao)
{
dao.CLEAN_CONF_Matrix();
dao.CLEAN_WEIG_Matrix();
List<string> list_ClusterID = dao.getAllClusterID();
foreach (var item in list_ClusterID)
{
List<Transac> u_transacs = dao.getTransac_ForMatrix_ByClusterID_V2(item);
if (u_transacs.Count > 0)
{
// Get QuantityMatrix - MC
Dictionary<string, int> QM_dic_users = new Dictionary<string, int>();
Dictionary<string, int> QM_dic_items = new Dictionary<string, int>();
double[][] QuantityMatrix = Util.getQuantityMatrix_FromTransac_ByMetaItemID(u_transacs, out QM_dic_users, out QM_dic_items);
if (QuantityMatrix[0].Length > 1)
{
// Compute Support One Item Matrix - MC
double[] S = new double[QuantityMatrix[0].Length];
for (int j = 0; j < QuantityMatrix[0].Length; j++)
{
double count = 0.0;
for (int i = 0; i < QuantityMatrix.Length; i++)
if (QuantityMatrix[i][j] > 0)
count++;
S[j] = count;
}
// Compute Support Matrix - MC
double[][] SupportMatrix = new double[QuantityMatrix[0].Length][];
for (int i = 0; i < QuantityMatrix[0].Length; i++)
SupportMatrix[i] = new double[QuantityMatrix[0].Length];
for (int i = 0; i < QuantityMatrix.Length; i++)
{
for (int j = 0; j < QuantityMatrix[0].Length; j++)
for (int j2 = 0; j2 < QuantityMatrix[0].Length; j2++)
if (QuantityMatrix[i][j] > 0 & QuantityMatrix[i][j2] > 0 & j != j2)
SupportMatrix[j][j2]++;
}
// Compute CONF Matrix - MC
double[][] CONF = new double[QuantityMatrix[0].Length][];
for (int i = 0; i < QuantityMatrix[0].Length; i++)
CONF[i] = new double[QuantityMatrix[0].Length];
for (int i = 0; i < QuantityMatrix[0].Length; i++)
{
for (int j = 0; j < QuantityMatrix[0].Length; j++)
if (i == j)
CONF[i][j] = 1.0;
else if (S[i] > 0)
CONF[i][j] = SupportMatrix[i][j] / S[i];
}
// Compute WEIG Matrix - MC
double[][] WEIG = new double[QuantityMatrix[0].Length][];
for (int i = 0; i < QuantityMatrix[0].Length; i++)
WEIG[i] = new double[QuantityMatrix[0].Length];
for (int i = 0; i < QuantityMatrix[0].Length; i++)
{
for (int j = 0; j < QuantityMatrix[0].Length; j++)
if (i != j)
WEIG[i][j] = computeWEIG(i, j, SupportMatrix, QuantityMatrix);
}
// Save CONF Matrix - MC
for (int i = 0; i < CONF.Length; i++)
for (int j = 0; j < CONF[0].Length; j++)
if (CONF[i][j] > 0)
{
MatrixItem matrixItem = new MatrixItem();
matrixItem.Row = Util.FindKeyByValue(QM_dic_items, i);
matrixItem.Column = Util.FindKeyByValue(QM_dic_items, j);
matrixItem.Cell = CONF[i][j];
matrixItem.ClusterID = item;
dao.setCONF_Matrix(matrixItem);
}
// Save WEIG Matrix
for (int i = 0; i < WEIG.Length; i++)
for (int j = 0; j < WEIG[0].Length; j++)
if (WEIG[i][j] > 0)
{
MatrixItem matrixItem = new MatrixItem();
matrixItem.Row = Util.FindKeyByValue(QM_dic_items, i);
matrixItem.Column = Util.FindKeyByValue(QM_dic_items, j);
matrixItem.Cell = WEIG[i][j];
matrixItem.ClusterID = item;
dao.setWEIG_Matrix(matrixItem);
}
}
}
}
}
public List<Recommendation_Meta_Item> getListRecommendation_R1_TraditionalUsers(Predict_DAO_MCol a, int nbR1)
{
//Predict_DAO_MC a = new Predict_DAO_MC();
List<Recommendation_Meta_Item> list = new List<Recommendation_Meta_Item>();
List<Recommendation_Meta_Item> RC = new List<Recommendation_Meta_Item>();
List<string> lstCluster = new List<string>();
List<string> User_OfCluster = new List<string>();
//Settings r = GetRecommendationSeting(a);
lstCluster = a.GetListClusterID();
//Check number of recommendations
if (nbR1 <= 0) nbR1 = 1;
//int i = 0;
foreach (string cluster in lstCluster)
{
User_OfCluster = a.GetListUser_OfCluster(cluster);
foreach (string u in User_OfCluster)
{
RC = a.GetRecommendC6_ForTraditionalUser(u, nbR1);//2
list.AddRange(RC);
}
}
return list;
}
