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/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_5_3_14/src/RecoTauTag/RecoTau/plugins/PFRecoTauDiscriminationAgainstElectronMVA.cc

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00001 /* class PFRecoTauDiscriminationAgainstElectronMVA
00002  * created : Nov 23 2011,
00003  * revised : ,
00004  * Authorss : Lorenzo Bianchini (LLR Ecole-Polytechnique)
00005  */
00006 
00007 #include "RecoTauTag/RecoTau/interface/TauDiscriminationProducerBase.h"
00008 #include "FWCore/ParameterSet/interface/FileInPath.h"
00009 #include "RecoTauTag/RecoTau/interface/AntiElectronIDMVA.h"
00010 
00011 #include <string>
00012 
00013 using namespace reco;
00014 
00015 class PFRecoTauDiscriminationAgainstElectronMVA : public PFTauDiscriminationProducerBase  {
00016    public:
00017       explicit PFRecoTauDiscriminationAgainstElectronMVA(const edm::ParameterSet& iConfig):PFTauDiscriminationProducerBase(iConfig) {
00018 
00019          method_                           = iConfig.getParameter<std::string>("method");
00020          inputFileName1prongBL_            = iConfig.getParameter<edm::FileInPath>("inputFileName1prongBL");
00021          inputFileName1prongStripsWgsfBL_  = iConfig.getParameter<edm::FileInPath>("inputFileName1prongStripsWgsfBL");
00022          inputFileName1prongStripsWOgsfBL_ = iConfig.getParameter<edm::FileInPath>("inputFileName1prongStripsWOgsfBL");
00023          inputFileName1prongEC_            = iConfig.getParameter<edm::FileInPath>("inputFileName1prongEC");
00024          inputFileName1prongStripsWgsfEC_  = iConfig.getParameter<edm::FileInPath>("inputFileName1prongStripsWgsfEC");
00025          inputFileName1prongStripsWOgsfEC_ = iConfig.getParameter<edm::FileInPath>("inputFileName1prongStripsWOgsfEC");
00026 
00027          returnMVA_                 = iConfig.getParameter<bool>("returnMVA");
00028          minMVA1prongBL_            = iConfig.getParameter<double>("minMVA1prongBL");
00029          minMVA1prongStripsWgsfBL_  = iConfig.getParameter<double>("minMVA1prongStripsWgsfBL");
00030          minMVA1prongStripsWOgsfBL_ = iConfig.getParameter<double>("minMVA1prongStripsWOgsfBL");
00031          minMVA1prongEC_            = iConfig.getParameter<double>("minMVA1prongEC");
00032          minMVA1prongStripsWgsfEC_  = iConfig.getParameter<double>("minMVA1prongStripsWgsfEC");
00033          minMVA1prongStripsWOgsfEC_ = iConfig.getParameter<double>("minMVA1prongStripsWOgsfEC");
00034 
00035          mva_ = new AntiElectronIDMVA();
00036          mva_->Initialize(method_,
00037                           inputFileName1prongBL_.fullPath().data(),
00038                           inputFileName1prongStripsWgsfBL_.fullPath().data(),
00039                           inputFileName1prongStripsWOgsfBL_.fullPath().data(),
00040                           inputFileName1prongEC_.fullPath().data(),
00041                           inputFileName1prongStripsWgsfEC_.fullPath().data(),
00042                           inputFileName1prongStripsWOgsfEC_.fullPath().data()
00043                           );
00044 
00045 
00046       }
00047 
00048       double discriminate(const PFTauRef& thePFTauRef);
00049 
00050       ~PFRecoTauDiscriminationAgainstElectronMVA() { delete mva_; }
00051 
00052   private:
00053 
00054       std::string method_ ;
00055       edm::FileInPath inputFileName1prongBL_;
00056       edm::FileInPath inputFileName1prongStripsWgsfBL_;
00057       edm::FileInPath inputFileName1prongStripsWOgsfBL_;
00058       edm::FileInPath inputFileName1prongEC_;
00059       edm::FileInPath inputFileName1prongStripsWgsfEC_;
00060       edm::FileInPath inputFileName1prongStripsWOgsfEC_;
00061       AntiElectronIDMVA* mva_;
00062       bool returnMVA_ ;
00063       double minMVA1prongBL_ ;
00064       double minMVA1prongStripsWgsfBL_ ;
00065       double minMVA1prongStripsWOgsfBL_ ;
00066       double minMVA1prongEC_ ;
00067       double minMVA1prongStripsWgsfEC_ ;
00068       double minMVA1prongStripsWOgsfEC_;
00069 };
00070 
00071 double PFRecoTauDiscriminationAgainstElectronMVA::discriminate(const PFTauRef& thePFTauRef)
00072 {
00073   double mva          = -1.0;
00074   double workingPoint =  0.0;
00075 
00076   if( (*thePFTauRef).leadPFChargedHadrCand().isNonnull() ) {
00077 
00078     mva = mva_->MVAValue( thePFTauRef );
00079 
00080     workingPoint =
00081       ((*thePFTauRef).signalPFChargedHadrCands().size()==3 ||
00082        (fabs((*thePFTauRef).eta())<1.5 && ((*thePFTauRef).signalPFGammaCands().size())<=0 && mva > minMVA1prongBL_) ||
00083        (fabs((*thePFTauRef).eta())<1.5 && ((*thePFTauRef).signalPFGammaCands().size())>0  && (((*thePFTauRef).leadPFChargedHadrCand())->gsfTrackRef()).isNonnull()>0.5 && mva > minMVA1prongStripsWgsfBL_) ||
00084        (fabs((*thePFTauRef).eta())<1.5 && ((*thePFTauRef).signalPFGammaCands().size())>0  && (((*thePFTauRef).leadPFChargedHadrCand())->gsfTrackRef()).isNonnull()<0.5 && mva > minMVA1prongStripsWOgsfBL_) ||
00085        (fabs((*thePFTauRef).eta())>1.5 && ((*thePFTauRef).signalPFGammaCands().size())<=0 && mva > minMVA1prongEC_) ||
00086        (fabs((*thePFTauRef).eta())>1.5 && ((*thePFTauRef).signalPFGammaCands().size())>0  && (((*thePFTauRef).leadPFChargedHadrCand())->gsfTrackRef()).isNonnull()>0.5 && mva > minMVA1prongStripsWgsfEC_) ||
00087        (fabs((*thePFTauRef).eta())>1.5 && ((*thePFTauRef).signalPFGammaCands().size())>0  && (((*thePFTauRef).leadPFChargedHadrCand())->gsfTrackRef()).isNonnull()<0.5 && mva > minMVA1prongStripsWOgsfEC_)) ? 1.0 : 0.0;
00088 
00089   }
00090 
00091   return ( returnMVA_ ? mva : workingPoint);
00092 }
00093 
00094 DEFINE_FWK_MODULE(PFRecoTauDiscriminationAgainstElectronMVA);