public Output ProcessTransaction(double minSupport, double minConfidence, IEnumerable <string> items, IEnumerable <string> transactions, bool @class)
{
Print(minSupport, minConfidence);
IList <Item> frequentItems = GetL1FrequentItems(minSupport, items, transactions);
Print(frequentItems);
ItemsDictionary allFrequentItems = new ItemsDictionary();
allFrequentItems.ConcatItems(frequentItems);
IDictionary <string, double> candidates = new Dictionary <string, double>();
double transactionsCount = transactions.Count();
do
{
candidates = GenerateCandidates(frequentItems, transactions);
frequentItems = GetFrequentItems(candidates, minSupport, transactionsCount);
Print(frequentItems);
allFrequentItems.ConcatItems(frequentItems);
}while (candidates.Count != 0);
HashSet <Rule> rules = GenerateRules(allFrequentItems);
IList <Rule> strongRules = GetStrongRules(minConfidence, rules, allFrequentItems);
Dictionary <string, Dictionary <string, double> > closedItemSets = GetClosedItemSets(allFrequentItems);
IList <string> maximalItemSets = GetMaximalItemSets(closedItemSets);
Print(strongRules);
// Rule Prunning
var prune = new RulePrunning();
var rulesAfterPrunning = prune
.DatabaseCoverageMethod(strongRules, transactions.ToList());
Console.WriteLine("Rules AFTER prunning with Database Coverage method.");
Print(rulesAfterPrunning);
// Rule Ranking
var rank = new RuleRanking();
var rankedRules = rank.ACS(rulesAfterPrunning);
Console.WriteLine("Rules ranked using ACS");
Print(rankedRules);
rankedRules = rank.CSA(rulesAfterPrunning);
Console.WriteLine("Rules ranked using CSA");
Print(rankedRules);
var sb = new StringBuilder($"Itemset\t\tClass\n=====================\n");
foreach (var rule in rankedRules)
{
sb.AppendFormat("{0};{1}\t{2}\n", rule.X, rule.Y, @class);
}
sb.AppendLine();
Console.WriteLine(sb);
//return new Output
//{
// StrongRules = strongRules,
// MaximalItemSets = maximalItemSets,
// ClosedItemSets = closedItemSets,
// FrequentItems = allFrequentItems
//};
return(null);
}
