00001 // @(#)root/tmva $Id: TNeuronInputAbs.h 29122 2009-06-22 06:51:30Z brun $ 00002 // Author: Matt Jachowski 00003 00004 /********************************************************************************** 00005 * Project: TMVA - a Root-integrated toolkit for multivariate data analysis * 00006 * Package: TMVA * 00007 * Class : TMVA::TNeuronInputAbs * 00008 * Web : http://tmva.sourceforge.net * 00009 * * 00010 * Description: * 00011 * TNeuron input calculator -- calculates the sum of the absolute values * 00012 * of the weighted inputs * 00013 * * 00014 * Authors (alphabetical): * 00015 * Matt Jachowski <jachowski@stanford.edu> - Stanford University, USA * 00016 * * 00017 * Copyright (c) 2005: * 00018 * CERN, Switzerland * 00019 * * 00020 * Redistribution and use in source and binary forms, with or without * 00021 * modification, are permitted according to the terms listed in LICENSE * 00022 * (http://tmva.sourceforge.net/LICENSE) * 00023 **********************************************************************************/ 00024 00025 00026 #ifndef ROOT_TMVA_TNeuronInputAbs 00027 #define ROOT_TMVA_TNeuronInputAbs 00028 00029 ////////////////////////////////////////////////////////////////////////// 00030 // // 00031 // TNeuronInputAbs // 00032 // // 00033 // TNeuron input calculator -- calculates the sum of the absolute // 00034 // values of the weighted inputs // 00035 // // 00036 ////////////////////////////////////////////////////////////////////////// 00037 00038 // ROOT_VERSION(5,15,02) = (5<<16)+(15<<8)+2 = 364802 00039 // we use the hardcoded number here since CINT does not easily understand macros 00040 // we tried using rootcints -p option, but that causes rootcint to pick up 00041 // things from the ROOT version of TMVA 00042 00043 #if ROOT_VERSION_CODE >= 364802 00044 #ifndef ROOT_TMathBase 00045 #include "TMathBase.h" 00046 #endif 00047 #else 00048 #ifndef ROOT_TMath 00049 #include "TMath.h" 00050 #endif 00051 #endif 00052 00053 #ifndef ROOT_TObject 00054 #include "TObject.h" 00055 #endif 00056 #ifndef ROOT_TString 00057 #include "TString.h" 00058 #endif 00059 00060 #ifndef ROOT_TMVA_TNeuronInput 00061 #include "TMVA/TNeuronInput.h" 00062 #endif 00063 00064 #ifndef ROOT_TMVA_TNeuron 00065 #include "TMVA/TNeuron.h" 00066 #endif 00067 00068 namespace TMVA { 00069 00070 class TNeuronInputAbs : public TNeuronInput { 00071 00072 public: 00073 00074 TNeuronInputAbs() {} 00075 virtual ~TNeuronInputAbs() {} 00076 00077 // calculate the input value for the neuron 00078 Double_t GetInput( const TNeuron* neuron ) const { 00079 if (neuron->IsInputNeuron()) return 0; 00080 Double_t result = 0; 00081 for (Int_t i=0; i < neuron->NumPreLinks(); i++) 00082 result += TMath::Abs(neuron->PreLinkAt(i)->GetWeightedValue()); 00083 return result; 00084 } 00085 00086 // name of the class 00087 TString GetName() { return "Sum of weighted activations (absolute value)"; } 00088 00089 ClassDef(TNeuronInputAbs,0) // Calculates the sum of the absolute values of the weighted inputs 00090 }; 00091 00092 } // namespace TMVA 00093 00094 #endif
1.5.1