MultipleAlgoIterator Class Reference

#include <MultipleAlgoIterator.h>

Inheritance diagram for MultipleAlgoIterator:

Public Member Functions
void	calculateOrphanInput (std::vector< fastjet::PseudoJet > &orphanInput) override
void	calculatePedestal (std::vector< fastjet::PseudoJet > const &coll) override
double	getEt (const reco::CandidatePtr &in) const
double	getEta (const reco::CandidatePtr &in) const
	MultipleAlgoIterator (const edm::ParameterSet &iConfig, edm::ConsumesCollector &&iC)
void	offsetCorrectJets () override
void	rescaleRMS (double s)
void	subtractPedestal (std::vector< fastjet::PseudoJet > &coll) override
Public Member Functions inherited from PileUpSubtractor
virtual double	getCone (double cone, double eta, double phi, double &et, double &pu)
virtual double	getMeanAtTower (const reco::CandidatePtr &in) const
int	getN (const reco::CandidatePtr &in) const
int	getNwithJets (const reco::CandidatePtr &in) const
virtual double	getPileUpAtTower (const reco::CandidatePtr &in) const
virtual double	getPileUpEnergy (int ijet) const
virtual double	getSigmaAtTower (const reco::CandidatePtr &in) const
int	ieta (const reco::CandidatePtr &in) const
int	iphi (const reco::CandidatePtr &in) const
	PileUpSubtractor (const edm::ParameterSet &iConfig, edm::ConsumesCollector &&iC)
virtual void	reset (std::vector< edm::Ptr< reco::Candidate > > &input, std::vector< fastjet::PseudoJet > &towers, std::vector< fastjet::PseudoJet > &output)
virtual void	setDefinition (JetDefPtr const &jetDef)
virtual void	setupGeometryMap (edm::Event &iEvent, const edm::EventSetup &iSetup)
virtual	~PileUpSubtractor ()

Private Attributes
bool	dropZeroTowers_
double	minimumTowersFraction_
bool	sumRecHits_

Additional Inherited Members
Public Types inherited from PileUpSubtractor
typedef std::shared_ptr< fastjet::GhostedAreaSpec >	ActiveAreaSpecPtr
typedef std::shared_ptr< fastjet::ClusterSequence >	ClusterSequencePtr
typedef std::shared_ptr< fastjet::JetDefinition >	JetDefPtr
typedef std::shared_ptr< fastjet::RangeDefinition >	RangeDefPtr
Protected Attributes inherited from PileUpSubtractor
int	activeAreaRepeats
std::vector< HcalDetId >	allgeomid_
bool	doAreaFastjet_
bool	doRhoFastjet_
std::map< int, double >	emean_
std::map< int, double >	esigma_
ActiveAreaSpecPtr	fjActiveArea_
ClusterSequencePtr	fjClusterSeq_
std::vector< fastjet::PseudoJet > *	fjInputs_
JetDefPtr	fjJetDefinition_
std::vector< fastjet::PseudoJet > *	fjJets_
std::vector< fastjet::PseudoJet >	fjOriginalInputs_
CaloGeometry const *	geo_
std::map< int, int >	geomtowers_
double	ghostArea
double	ghostEtaMax
int	ietamax_
int	ietamin_
std::vector< edm::Ptr< reco::Candidate > > *	inputs_
std::vector< double >	jetOffset_
double	jetPtMin_
double	nSigmaPU_
std::map< int, int >	ntowersWithJets_
double	puPtMin_
double	radiusPU_
bool	reRunAlgo_

Detailed Description

Definition at line 6 of file MultipleAlgoIterator.h.

Constructor & Destructor Documentation

MultipleAlgoIterator()

MultipleAlgoIterator::MultipleAlgoIterator	(	const edm::ParameterSet &	iConfig,
		edm::ConsumesCollector &&	iC
	)

Definition at line 11 of file MultipleAlgoIterator.cc.

    : PileUpSubtractor(iConfig, std::move(iC)),
      minimumTowersFraction_(iConfig.getParameter<double>("minimumTowersFraction")),
      sumRecHits_(iConfig.getParameter<bool>("sumRecHits")),
      dropZeroTowers_(iConfig.getUntrackedParameter<bool>("dropZeroTowers", true)) {
  LogDebug("PileUpSubtractor") << "LIMITING THE MINIMUM TOWERS FRACTION TO : " << minimumTowersFraction_ << endl;
}

References LogDebug, and minimumTowersFraction_.

Member Function Documentation

calculateOrphanInput()

void MultipleAlgoIterator::calculateOrphanInput ( std::vector< fastjet::PseudoJet > &  orphanInput )

overridevirtual

Reimplemented from PileUpSubtractor.

Definition at line 172 of file MultipleAlgoIterator.cc.

                                                                                     {
  LogDebug("PileUpSubtractor") << "The subtractor calculating orphan input...\n";
 
  (*fjInputs_) = fjOriginalInputs_;
 
  vector<int> jettowers;                   // vector of towers indexed by "user_index"
  vector<pair<int, int> > excludedTowers;  // vector of excluded ieta, iphi values
 
  for (auto const& pseudojetTMP : *fjJets_) {
    if (pseudojetTMP.perp() < puPtMin_)
      continue;
 
    // find towers within radiusPU_ of this jet
    for (auto const im : allgeomid_) {
      double dr = reco::deltaR(geo_->getPosition(im), pseudojetTMP);
      auto exclude = find(excludedTowers.begin(), excludedTowers.end(), pair<int, int>(im.ieta(), im.iphi()));
      if (dr < radiusPU_ && exclude == excludedTowers.end() &&
          (geomtowers_[im.ieta()] - ntowersWithJets_[im.ieta()]) > minimumTowersFraction_ * (geomtowers_[im.ieta()])) {
        ntowersWithJets_[im.ieta()]++;
 
        excludedTowers.push_back(pair<int, int>(im.ieta(), im.iphi()));
      }
    }
 
    for (auto const& it : *fjInputs_) {
      int index = it.user_index();
      int ie = ieta((*inputs_)[index]);
      int ip = iphi((*inputs_)[index]);
      auto exclude = find(excludedTowers.begin(), excludedTowers.end(), pair<int, int>(ie, ip));
      if (exclude != excludedTowers.end()) {
        jettowers.push_back(index);
      }
    }  // initial input collection
 
  }  // pseudojets
 
  //
  // Create a new collections from the towers not included in jets
  //
 
  for (auto const& it : *fjInputs_) {
    int index = it.user_index();
    vector<int>::const_iterator itjet = find(jettowers.begin(), jettowers.end(), index);
    if (itjet == jettowers.end()) {
      const reco::CandidatePtr& originalTower = (*inputs_)[index];
      fastjet::PseudoJet orphan(originalTower->px(), originalTower->py(), originalTower->pz(), originalTower->energy());
      orphan.set_user_index(index);
 
      orphanInput.push_back(orphan);
    }
  }
}

References PileUpSubtractor::allgeomid_, reco::deltaR(), flavorHistoryFilter_cfi::dr, reco::Candidate::energy(), spr::find(), PileUpSubtractor::fjInputs_, PileUpSubtractor::fjJets_, PileUpSubtractor::fjOriginalInputs_, PileUpSubtractor::geo_, PileUpSubtractor::geomtowers_, CaloGeometry::getPosition(), PileUpSubtractor::ieta(), PileUpSubtractor::inputs_, PileUpSubtractor::iphi(), LogDebug, minimumTowersFraction_, PileUpSubtractor::ntowersWithJets_, PileUpSubtractor::puPtMin_, reco::Candidate::px(), reco::Candidate::py(), reco::Candidate::pz(), and PileUpSubtractor::radiusPU_.

calculatePedestal()

void MultipleAlgoIterator::calculatePedestal ( std::vector< fastjet::PseudoJet > const &  coll )

overridevirtual

Reimplemented from PileUpSubtractor.

Definition at line 108 of file MultipleAlgoIterator.cc.

                                                                                 {
  LogDebug("PileUpSubtractor") << "The subtractor calculating pedestals...\n";
 
  map<int, double> emean2;
  map<int, int> ntowers;
 
  int ietaold = -10000;
  int ieta0 = -100;
 
  // Initial values for emean_, emean2, esigma_, ntowers
 
  for (int i = ietamin_; i < ietamax_ + 1; i++) {
    emean_[i] = 0.;
    emean2[i] = 0.;
    esigma_[i] = 0.;
    ntowers[i] = 0;
  }
 
  for (vector<fastjet::PseudoJet>::const_iterator input_object = coll.begin(), fjInputsEnd = coll.end();
       input_object != fjInputsEnd;
       ++input_object) {
    const reco::CandidatePtr& originalTower = (*inputs_)[input_object->user_index()];
    ieta0 = ieta(originalTower);
    double Original_Et = originalTower->et();
    if (sumRecHits_) {
      Original_Et = getEt(originalTower);
    }
 
    if (ieta0 - ietaold != 0) {
      emean_[ieta0] = emean_[ieta0] + Original_Et;
      emean2[ieta0] = emean2[ieta0] + Original_Et * Original_Et;
      ntowers[ieta0] = 1;
      ietaold = ieta0;
    } else {
      emean_[ieta0] = emean_[ieta0] + Original_Et;
      emean2[ieta0] = emean2[ieta0] + Original_Et * Original_Et;
      ntowers[ieta0]++;
    }
  }
 
  for (map<int, int>::const_iterator gt = geomtowers_.begin(); gt != geomtowers_.end(); gt++) {
    int it = (*gt).first;
 
    double e1 = (*(emean_.find(it))).second;
    double e2 = (*emean2.find(it)).second;
    int nt = (*gt).second - (*(ntowersWithJets_.find(it))).second;
 
    LogDebug("PileUpSubtractor") << " ieta : " << it << " number of towers : " << nt << " e1 : " << e1 << " e2 : " << e2
                                 << "\n";
 
    if (nt > 0) {
      emean_[it] = e1 / nt;
      double eee = e2 / nt - e1 * e1 / (nt * nt);
      if (eee < 0.)
        eee = 0.;
      esigma_[it] = nSigmaPU_ * sqrt(eee);
    } else {
      emean_[it] = 0.;
      esigma_[it] = 0.;
    }
    LogDebug("PileUpSubtractor") << " ieta : " << it << " Pedestals : " << emean_[it] << "  " << esigma_[it] << "\n";
  }
}

References StorageManager_cfg::e1, PileUpSubtractor::emean_, PileUpSubtractor::esigma_, reco::Candidate::et(), PileUpSubtractor::geomtowers_, getEt(), submitPVValidationJobs::gt, mps_fire::i, PileUpSubtractor::ieta(), PileUpSubtractor::ietamax_, PileUpSubtractor::ietamin_, LogDebug, PileUpSubtractor::nSigmaPU_, nt, PileUpSubtractor::ntowersWithJets_, edm::second(), mathSSE::sqrt(), and sumRecHits_.

getEt()

double MultipleAlgoIterator::getEt

(

const reco::CandidatePtr &

in

)

const

Definition at line 225 of file MultipleAlgoIterator.cc.

                                                                   {
  const CaloTower* ctc = dynamic_cast<const CaloTower*>(in.get());
  const GlobalPoint& pos = geo_->getPosition(ctc->id());
  double energy = ctc->emEnergy() + ctc->hadEnergy();
  double et = energy * sin(pos.theta());
  return et;
}

References CaloTower::emEnergy(), HCALHighEnergyHPDFilter_cfi::energy, EgHLTOffHistBins_cfi::et, PileUpSubtractor::geo_, CaloGeometry::getPosition(), CaloTower::hadEnergy(), CaloTower::id(), recoMuon::in, and funct::sin().

Referenced by calculatePedestal(), and subtractPedestal().

getEta()

double MultipleAlgoIterator::getEta

(

const reco::CandidatePtr &

in

)

const

Definition at line 233 of file MultipleAlgoIterator.cc.

                                                                    {
  const CaloTower* ctc = dynamic_cast<const CaloTower*>(in.get());
  const GlobalPoint& pos = geo_->getPosition(ctc->id());
  double eta = pos.eta();
  return eta;
}

References PVValHelper::eta, PileUpSubtractor::geo_, CaloGeometry::getPosition(), CaloTower::id(), and recoMuon::in.

offsetCorrectJets()

void MultipleAlgoIterator::offsetCorrectJets ( )

overridevirtual

Reimplemented from PileUpSubtractor.

Definition at line 25 of file MultipleAlgoIterator.cc.

                                             {
  LogDebug("PileUpSubtractor") << "The subtractor correcting jets...\n";
  jetOffset_.clear();
 
  using namespace reco;
 
  (*fjInputs_) = fjOriginalInputs_;
  rescaleRMS(nSigmaPU_);
  subtractPedestal(*fjInputs_);
  const fastjet::JetDefinition& def = *fjJetDefinition_;
  if (!doAreaFastjet_ && !doRhoFastjet_) {
    fjClusterSeq_ = std::make_shared<fastjet::ClusterSequence>(*fjInputs_, def);
  } else {
    fjClusterSeq_ = ClusterSequencePtr(new fastjet::ClusterSequenceArea(*fjInputs_, def, *fjActiveArea_));
  }
 
  (*fjJets_) = fastjet::sorted_by_pt(fjClusterSeq_->inclusive_jets(jetPtMin_));
 
  jetOffset_.reserve(fjJets_->size());
 
  vector<fastjet::PseudoJet>::iterator pseudojetTMP = fjJets_->begin(), jetsEnd = fjJets_->end();
  for (; pseudojetTMP != jetsEnd; ++pseudojetTMP) {
    int ijet = pseudojetTMP - fjJets_->begin();
    jetOffset_[ijet] = 0;
 
    std::vector<fastjet::PseudoJet> towers = sorted_by_pt(pseudojetTMP->constituents());
 
    double newjetet = 0.;
    for (vector<fastjet::PseudoJet>::const_iterator ito = towers.begin(), towEnd = towers.end(); ito != towEnd; ++ito) {
      const reco::CandidatePtr& originalTower = (*inputs_)[ito->user_index()];
      int it = ieta(originalTower);
      double Original_Et = originalTower->et();
      double etnew = Original_Et - (*emean_.find(it)).second - (*esigma_.find(it)).second;
      if (etnew < 0.)
        etnew = 0;
      newjetet = newjetet + etnew;
      jetOffset_[ijet] += Original_Et - etnew;
    }
  }
}

References spu::def(), PileUpSubtractor::doAreaFastjet_, PileUpSubtractor::doRhoFastjet_, PileUpSubtractor::emean_, PileUpSubtractor::esigma_, reco::Candidate::et(), PileUpSubtractor::fjActiveArea_, PileUpSubtractor::fjClusterSeq_, PileUpSubtractor::fjInputs_, PileUpSubtractor::fjJetDefinition_, PileUpSubtractor::fjJets_, PileUpSubtractor::fjOriginalInputs_, PileUpSubtractor::ieta(), PileUpSubtractor::jetOffset_, PileUpSubtractor::jetPtMin_, LogDebug, PileUpSubtractor::nSigmaPU_, rescaleRMS(), edm::second(), subtractPedestal(), and HLT_FULL_cff::towers.

rescaleRMS()

void MultipleAlgoIterator::rescaleRMS

(

double

s

)

Definition at line 19 of file MultipleAlgoIterator.cc.

                                              {
  for (std::map<int, double>::iterator iter = esigma_.begin(); iter != esigma_.end(); ++iter) {
    iter->second = s * (iter->second);
  }
}

References PileUpSubtractor::esigma_, and alignCSCRings::s.

Referenced by offsetCorrectJets().

subtractPedestal()

void MultipleAlgoIterator::subtractPedestal ( std::vector< fastjet::PseudoJet > &  coll )

overridevirtual

Reimplemented from PileUpSubtractor.

Definition at line 66 of file MultipleAlgoIterator.cc.

                                                                          {
  LogDebug("PileUpSubtractor") << "The subtractor subtracting pedestals...\n";
 
  int it = -100;
 
  vector<fastjet::PseudoJet> newcoll;
 
  for (vector<fastjet::PseudoJet>::iterator input_object = coll.begin(), fjInputsEnd = coll.end();
       input_object != fjInputsEnd;
       ++input_object) {
    reco::CandidatePtr const& itow = (*inputs_)[input_object->user_index()];
 
    it = ieta(itow);
    iphi(itow);
 
    double Original_Et = itow->et();
    if (sumRecHits_) {
      Original_Et = getEt(itow);
    }
 
    double etnew = Original_Et - (*(emean_.find(it))).second - (*(esigma_.find(it))).second;
    float mScale = etnew / input_object->Et();
    if (etnew < 0.)
      mScale = 0.;
 
    math::XYZTLorentzVectorD towP4(input_object->px() * mScale,
                                   input_object->py() * mScale,
                                   input_object->pz() * mScale,
                                   input_object->e() * mScale);
 
    int index = input_object->user_index();
    input_object->reset_momentum(towP4.px(), towP4.py(), towP4.pz(), towP4.energy());
    input_object->set_user_index(index);
 
    if (etnew > 0. && dropZeroTowers_)
      newcoll.push_back(*input_object);
  }
 
  if (dropZeroTowers_)
    coll = newcoll;
}

References dropZeroTowers_, PileUpSubtractor::emean_, PileUpSubtractor::esigma_, reco::Candidate::et(), getEt(), PileUpSubtractor::ieta(), PileUpSubtractor::iphi(), LogDebug, and sumRecHits_.

Referenced by offsetCorrectJets().

Member Data Documentation

dropZeroTowers_

bool MultipleAlgoIterator::dropZeroTowers_

private

Definition at line 20 of file MultipleAlgoIterator.h.

Referenced by subtractPedestal().

minimumTowersFraction_

double MultipleAlgoIterator::minimumTowersFraction_

private

Definition at line 18 of file MultipleAlgoIterator.h.

Referenced by calculateOrphanInput(), and MultipleAlgoIterator().

sumRecHits_

bool MultipleAlgoIterator::sumRecHits_

private

Definition at line 19 of file MultipleAlgoIterator.h.

Referenced by calculatePedestal(), and subtractPedestal().