Changeset 10910 for stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter

Timestamp:

05/28/14 15:19:54 (11 years ago)

Author:

mkommend

Message:

#2177: Merged r10774 and r10788:10791 into stable.

Location:

stable

Files:

• . (modified) (1 prop)
• HeuristicLab.Problems.DataAnalysis.Symbolic (modified) (1 prop)
• HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/OpCodes.cs (modified) (2 diffs)
• HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/SymbolicDataAnalysisExpressionTreeILEmittingInterpreter.cs (modified) (1 diff)
• HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/SymbolicDataAnalysisExpressionTreeInterpreter.cs (modified) (1 diff)
• HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/SymbolicDataAnalysisExpressionTreeLinearInterpreter.cs (modified) (1 diff)

stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/OpCodes.cs

@@ -46 +46 @@
     public const byte OR = 14;
     public const byte NOT = 15;
+    public const byte XOR = 45;
 
 
@@ -99 +100 @@
       { typeof(Or), OpCodes.OR },
       { typeof(Not), OpCodes.NOT},
+      { typeof(Xor),OpCodes.XOR},
       { typeof(Average), OpCodes.Average},
       { typeof(InvokeFunction), OpCodes.Call },

stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/SymbolicDataAnalysisExpressionTreeILEmittingInterpreter.cs

@@ -447 +447 @@
             il.Emit(System.Reflection.Emit.OpCodes.Sub);
             il.Emit(System.Reflection.Emit.OpCodes.Neg); // * -1
+            return;
+          }
+        case OpCodes.XOR: {
+            CompileInstructions(il, state, ds);
+            il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4_0);
+            il.Emit(System.Reflection.Emit.OpCodes.Cgt);// > 0
+
+            for (int i = 1; i < nArgs; i++) {
+              CompileInstructions(il, state, ds);
+              il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4_0);
+              il.Emit(System.Reflection.Emit.OpCodes.Cgt);// > 0
+              il.Emit(System.Reflection.Emit.OpCodes.Xor);
+            }
+            il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 2.0); // * 2
+            il.Emit(System.Reflection.Emit.OpCodes.Mul);
+            il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 1.0); // - 1
+            il.Emit(System.Reflection.Emit.OpCodes.Sub);
             return;
           }

stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/SymbolicDataAnalysisExpressionTreeInterpreter.cs

@@ -344 +344 @@
             return Evaluate(dataset, ref row, state) > 0.0 ? -1.0 : 1.0;
           }
+        case OpCodes.XOR: {
+            //mkommend: XOR on multiple inputs is defined as true if the number of positive signals is odd
+            // this is equal to a consecutive execution of binary XOR operations.
+            int positiveSignals = 0;
+            for (int i = 0; i < currentInstr.nArguments; i++) {
+              if (Evaluate(dataset, ref row, state) > 0.0) positiveSignals++;
+            }
+            return positiveSignals % 2 != 0 ? 1.0 : -1.0;
+          }
         case OpCodes.GT: {
             double x = Evaluate(dataset, ref row, state);

stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/SymbolicDataAnalysisExpressionTreeLinearInterpreter.cs

@@ -311 +311 @@
         } else if (instr.opCode == OpCodes.NOT) {
           instr.value = code[instr.childIndex].value > 0.0 ? -1.0 : 1.0;
+        } else if (instr.opCode == OpCodes.XOR) {
+          int positiveSignals = 0;
+          for (int j = 0; j < instr.nArguments; j++) {
+            if (code[instr.childIndex + j].value > 0.0) positiveSignals++;
+          }
+          instr.value = positiveSignals % 2 != 0 ? 1.0 : -1.0;
         } else if (instr.opCode == OpCodes.GT) {
           double x = code[instr.childIndex].value;