public void PrunningClientsAndTransactions()
{
TransactionsPrunned = FilteredTransactions;
ClientPrunned = Clients;
double prunningNumber = FilteredTransactions.Count;
prunningNumber *= 0.01;
Console.WriteLine("Prunning number: " + prunningNumber);
List <String> clientsD = new List <String>();
List <int> transactiondsD = new List <int>();
foreach (var c in Clients)
{
if (FilteredTransactions.Count(t => t.Value.ClientCode == c.Key) <= prunningNumber)
{
clientsD.Add(c.Key);
foreach (var t in FilteredTransactions)
{
if (t.Value.ClientCode == c.Key)
{
transactiondsD.Add(t.Key);
}
}
}
}
foreach (var c in clientsD)
{
ClientPrunned.Remove(c);
}
foreach (var t in transactiondsD)
{
TransactionsPrunned.Remove(t);
}
Console.WriteLine("Transactions after prunning: " + TransactionsPrunned.Count);
}
public void generateFrecuentItemsets(double threshold, string region)
{
TimeSpan stop;
TimeSpan start = new TimeSpan(DateTime.Now.Ticks);
if (!region.Equals("TODO"))
{
foreach (int t in Transactions.Keys)
{
if (Clients[Transactions[t].ClientCode].Departament.Equals(region))
{
FilteredTransactions.Add(Transactions[t].Code, Transactions[t]);
}
}
}
else
{
FilteredTransactions = Transactions;
}
if (region.Equals("VALLE DEL CAUCA") || region.Equals("BOGOTA") || region.Equals("CUNDINAMARCA") || region.Equals("RISARALDA") || region.Equals("TODO"))
{
PrunningClientsAndTransactions();
}
else
{
TransactionsPrunned = FilteredTransactions;
}
stop = new TimeSpan(DateTime.Now.Ticks);
Console.WriteLine("Time prunning clients and transactions: " + stop.Subtract(start).TotalSeconds + " segundos");
List <List <int> > transactions = TransactionsPrunned.Select(t => t.Value.Items).ToList();
List <int[]> itemsets = GenerateItemSet_BruteForce(1);
List <int[]> frecuentIS = Apriori.GenerateAllFrecuentItemsets(itemsets, transactions, threshold).ToList();
listadoIF = auxiliarIF(frecuentIS, transactions);
Console.WriteLine("Number of frecuent itemsets: " + frecuentIS.Count);
List <Itemset> FIS = new List <Itemset>();
for (int i = 0; i < frecuentIS.Count; i++)
{
int[] actual = frecuentIS.ElementAt(i);
List <Item> theItems = new List <Item>();
for (int j = 0; j < actual.Length; j++)
{
Item theItem = Items[actual[j]];
theItems.Add(theItem);
}
double averageP = theItems.Average(it => it.AveragePrice);
double averageC = theItems.Average(it => Convert.ToDouble(it.Clasification));
Itemset nuevoItemset = new Itemset(theItems, averageP, averageC);
FIS.Add(nuevoItemset);
}
FrecuentItemsets = FIS;
}
