Exemplo n.º 1
0
        /// <summary>
        /// Plate by plate classification
        /// </summary>
        /// <param name="NeutralClass">Neutral class</param>
        /// <param name="IdxClassifier">Classifier Index (0:J48), (1:SVM), (2:NN), (3:KNN)</param>
        private void ClassificationPlateByPlate(int NeutralClass, int IdxClassifier)
        {
            int NumberOfPlates = cGlobalInfo.CurrentScreening.ListPlatesActive.Count;

            for (int PlateIdx = 0; PlateIdx < NumberOfPlates; PlateIdx++)
            {
                cPlate CurrentPlateToProcess = cGlobalInfo.CurrentScreening.ListPlatesActive.GetPlate(cGlobalInfo.CurrentScreening.ListPlatesActive[PlateIdx].GetName());
                cInfoClass InfoClass = CurrentPlateToProcess.GetNumberOfClassesBut(NeutralClass);
                // return;
                if (InfoClass.NumberOfClass <= 1)
                {
                    richTextBoxInfoClassif.AppendText(CurrentPlateToProcess.GetName() + " not processed.\n");
                    continue;
                }

                weka.core.Instances insts = CurrentPlateToProcess.CreateInstancesWithClasses(InfoClass, NeutralClass);
                Classifier ClassificationModel = null;
                string Text = "";
                switch (IdxClassifier)
                {
                    case 0: // J48
                        ClassificationModel = new weka.classifiers.trees.J48();
                        weka.classifiers.trees.J48 J48Model = (weka.classifiers.trees.J48)ClassificationModel;
                        J48Model.setMinNumObj((int)cGlobalInfo.OptionsWindow.numericUpDownJ48MinNumObjects.Value);
                        Text = "J48 - ";
                        break;
                    case 1: // SVM
                        ClassificationModel = new weka.classifiers.functions.SMO();
                        Text = "SVM - ";
                        break;
                    case 2: // NN
                        ClassificationModel = new weka.classifiers.functions.MultilayerPerceptron();
                        Text = "Neural Network - ";
                        break;
                    case 3: // KNN
                        ClassificationModel = new weka.classifiers.lazy.IBk((int)cGlobalInfo.OptionsWindow.numericUpDownKofKNN.Value);
                        Text = "K-Nearest Neighbor(s) - ";
                        break;
                    case 4: // Random Forest
                        ClassificationModel = new weka.classifiers.trees.RandomForest();
                        Text = "Random Forest - ";

                        break;
                    default:
                        break;
                }
                richTextBoxInfoClassif.AppendText(Text + InfoClass.NumberOfClass + " classes - Plate: ");

                richTextBoxInfoClassif.AppendText(CurrentPlateToProcess.GetName() + " OK \n");
                weka.core.Instances train = new weka.core.Instances(insts, 0, insts.numInstances());

                ClassificationModel.buildClassifier(train);
                cGlobalInfo.ConsoleWriteLine(ClassificationModel.ToString());

                weka.classifiers.Evaluation evaluation = new weka.classifiers.Evaluation(insts);
                evaluation.crossValidateModel(ClassificationModel, insts, 2, new java.util.Random(1));

                cGlobalInfo.ConsoleWriteLine(evaluation.toSummaryString());
                cGlobalInfo.ConsoleWriteLine(evaluation.toMatrixString());

                // update classification information of the current plate
                switch (IdxClassifier)
                {
                    case 0: // J48
                        weka.classifiers.trees.J48 CurrentClassifier = (weka.classifiers.trees.J48)(ClassificationModel);
                        CurrentPlateToProcess.GetInfoClassif().StringForTree = CurrentClassifier.graph().Remove(0, CurrentClassifier.graph().IndexOf("{") + 2);
                        break;
                    /*case 1: // SVM

                        break;
                    case 2: // NN

                        break;
                    case 3: // KNN

                        break;*/
                    default:
                        break;
                }

                CurrentPlateToProcess.GetInfoClassif().StringForQuality = evaluation.toSummaryString();
                CurrentPlateToProcess.GetInfoClassif().ConfusionMatrix = evaluation.toMatrixString();

                foreach (cWell TmpWell in CurrentPlateToProcess.ListActiveWells)
                {
                    weka.core.Instance currentInst = TmpWell.CreateInstanceForNClasses(InfoClass).instance(0);
                    double predictedClass = ClassificationModel.classifyInstance(currentInst);

                    TmpWell.SetClass(InfoClass.ListBackAssociation[(int)predictedClass]);
                }
            }
            return;
        }
Exemplo n.º 2
0
        /// <summary>
        /// Global classification
        /// </summary>
        /// <param name="NeutralClass">Neutral class</param>
        /// <param name="IdxClassifier">Classifier Index (0:J48), (1:SVM), (2:NN), (3:KNN)</param>
        private void ClassificationGlobal(int NeutralClass, int IdxClassifier)
        {
            cInfoClass InfoClass = cGlobalInfo.CurrentScreening.GetNumberOfClassesBut(NeutralClass);

            if (InfoClass.NumberOfClass <= 1)
            {
                richTextBoxInfoClassif.AppendText("Screening not processed.\n");
                return;
            }

            cExtendedTable TrainingTable = cGlobalInfo.CurrentScreening.ListPlatesActive.GetListActiveWells().GetAverageDescriptorValues(cGlobalInfo.CurrentScreening.ListDescriptors.GetActiveDescriptors(), false, true);

            weka.core.Instances insts = cGlobalInfo.CurrentScreening.CreateInstancesWithClasses(InfoClass, NeutralClass);
            Classifier ClassificationModel = null;

            switch (IdxClassifier)
            {
                case 0: // J48
                    ClassificationModel = new weka.classifiers.trees.J48();
                    weka.classifiers.trees.J48 J48Model = (weka.classifiers.trees.J48)ClassificationModel;
                    J48Model.setMinNumObj((int)cGlobalInfo.OptionsWindow.numericUpDownJ48MinNumObjects.Value);
                    richTextBoxInfoClassif.AppendText("\nC4.5 : " + InfoClass.NumberOfClass + " classes");
                    break;
                case 1: // SVM
                    ClassificationModel = new weka.classifiers.functions.SMO();
                    break;
                case 2: // NN
                    ClassificationModel = new weka.classifiers.functions.MultilayerPerceptron();
                    break;
                case 3: // KNN
                    ClassificationModel = new weka.classifiers.lazy.IBk((int)cGlobalInfo.OptionsWindow.numericUpDownKofKNN.Value);
                    break;
                case 4: // Random Forest
                    ClassificationModel = new weka.classifiers.trees.RandomForest();
                    break;
                default:
                    break;
            }

            weka.core.Instances train = new weka.core.Instances(insts, 0, insts.numInstances());

            ClassificationModel.buildClassifier(train);
            cGlobalInfo.ConsoleWriteLine(ClassificationModel.ToString());

            weka.classifiers.Evaluation evaluation = new weka.classifiers.Evaluation(insts);
            evaluation.crossValidateModel(ClassificationModel, insts, 2, new java.util.Random(1));

            cGlobalInfo.ConsoleWriteLine(evaluation.toSummaryString());
            cGlobalInfo.ConsoleWriteLine(evaluation.toMatrixString());

            // update classification information of the current plate
            string Text = "";
            switch (IdxClassifier)
            {
                case 0: // J48
                    Text = "J48 - ";
                    break;
                case 1: // SVM
                    //  ClassificationModel = new weka.classifiers.functions.SMO();
                    Text = "SVM - ";
                    break;
                case 2: // NN
                    // ClassificationModel = new weka.classifiers.functions.MultilayerPerceptron();
                    Text = "Neural Network - ";
                    break;
                case 3: // KNN
                    // ClassificationModel = new weka.classifiers.lazy.IBk((int)CompleteScreening.GlobalInfo.OptionsWindow.numericUpDownKofKNN.Value);
                    Text = "K-Nearest Neighbor(s) - ";
                    break;
                default:
                    break;
            }
            richTextBoxInfoClassif.AppendText(Text + InfoClass.NumberOfClass + " classes.");

            // CurrentPlateToProcess.GetInfoClassif().StringForQuality = evaluation.toSummaryString();
            //  CurrentPlateToProcess.GetInfoClassif().ConfusionMatrix = evaluation.toMatrixString();
            foreach (cPlate CurrentPlateToProcess in cGlobalInfo.CurrentScreening.ListPlatesActive)
            {
                foreach (cWell TmpWell in CurrentPlateToProcess.ListActiveWells)
                {
                    // return;
                    weka.core.Instance currentInst = TmpWell.CreateInstanceForNClasses(InfoClass).instance(0);
                    double predictedClass = ClassificationModel.classifyInstance(currentInst);
                    double[] ClassConfidence = ClassificationModel.distributionForInstance(currentInst);
                    double ConfidenceValue = ClassConfidence[(int)predictedClass];
                    TmpWell.SetClass(InfoClass.ListBackAssociation[(int)predictedClass], ConfidenceValue);
                }
            }
            return;
        }