//Rule
private HashSet <Rule> GenerateRules(ItemsDictionary allFrequentItems)
{
var rulesList = new HashSet <Rule>();
foreach (var item in allFrequentItems)
{
if (item.Data.Count > 1)
{
IEnumerable <string> subsetsList = GenerateSubsets(item.Data);
foreach (var subset in subsetsList)
{
string remaining = GetRemaining(subset, item.Data);
Rule rule = new Rule(subset, remaining, 0);
if (!rulesList.Contains(rule))
{
rulesList.Add(rule);
}
}
}
}
return(rulesList);
}
public void InitApriori()
{
//init
allFrequentItems = new ItemsDictionary();
candidates = new Dictionary <string, double>();
stackFrequentItems = new Dictionary <int, IList <Item> >();
transactionsCount = Program.Transactions.Count();
//get datas
//Program.Items = 5
frequentItems = GetL1FrequentItems(Program.Items);
candidates = GenerateCandidates(frequentItems);
stackFrequentItems.Add(step, frequentItems);
}
