Ejemplo n.º 1
0
        public FPTree(Arff source, int minimumCoverage, int maximumItemSetSize, double minimumAccuracy, int resultSize)
        {
            //load input
            Source = source;
            MinimumCoverage = minimumCoverage;
            MaximumItemSetSize = maximumItemSetSize;
            MinimumAccuracy = minimumAccuracy;
            ResultSize = resultSize;

            //initiate Root
            Root = new FPTreeNode();

            //local variables
            ItemSet ItemSet;
            ItemSet HighFrequencyOneItemSet;
            FPTreeTable FPTreeTable;

            //get the size 1 ItemSet
            ItemSet = new ItemSet(Source);

            //initiate High Frequency 1-item set
            HighFrequencyOneItemSet = ItemSet.DeepCopy();
            HighFrequencyOneItemSet.MeetMinimumCoverage(MinimumCoverage);
            HighFrequencyOneItemSet.OrderByFrequencyDescending();

            //initiate FPTreeTable
            FPTreeTable = new FPTreeTable(Source, HighFrequencyOneItemSet);

            //build FPTree
            BuildFPTreeFromRoot(FPTreeTable);
        }
Ejemplo n.º 2
0
 public static void Test_ItemSet_ItemSetConstructor()
 {
     string tmp = "";
     using (OpenFileDialog newOFD = new OpenFileDialog())
     {
         if (newOFD.ShowDialog() == DialogResult.OK)
         {
             tmp = newOFD.FileName;
         }
     }
     Arff tmp2 = new Arff(File.ReadAllText(tmp));
     ItemSet tmp3 = new ItemSet(tmp2);
 }
Ejemplo n.º 3
0
 public static void Test_ItemSet_MeetMinimumCoverage()
 {
     string tmp = "";
     using (OpenFileDialog newOFD = new OpenFileDialog())
     {
         if (newOFD.ShowDialog() == DialogResult.OK)
         {
             tmp = newOFD.FileName;
         }
     }
     Arff tmp2 = new Arff(File.ReadAllText(tmp));
     ItemSet tmp3 = new ItemSet(tmp2);
     tmp3.MeetMinimumCoverage(6);
     tmp3.OrderByFrequencyDescending();
 }
Ejemplo n.º 4
0
 public FPTreeTable(Arff source, ItemSet itemSet)
 {
     if (itemSet.Size() == 1)
     {
         Records = new List<FPTreeTableRecord>();
         for (int i = 0; i < source.Count(); i++)
         {
             //for every record
             FPTreeTableRecord Record = new FPTreeTableRecord();
             foreach (var item in itemSet.Items)
             {
                 if (source.RecordContains(i, item))
                 {
                     Record.Add(new FPTreeTableRecordItem(item));
                 }
             }
             if (Record.Count() != 0) { Records.Add(Record); }
         }
     }
     else
     { throw new Exception("Error creating FPTreeTable: invalid itemset, only 1-item itemset allowed"); }
 }