DeterministicAnnealing Class Reference

#include <DeterministicAnnealing.h>

Inheritance diagram for DeterministicAnnealing:

Public Member Functions
void	anneal () override
DeterministicAnnealing *	clone () const override
double	currentTemp () const override
double	cutoff () const override
void	debug () const override
	DeterministicAnnealing (const std::vector< float > &sched, float cutoff=3.0)
	DeterministicAnnealing (float cutoff=3.0)
double	initialTemp () const override
bool	isAnnealed () const override
double	phi (double chi2) const override
void	resetAnnealing () override
double	weight (double chi2) const override
Public Member Functions inherited from AnnealingSchedule
virtual	~AnnealingSchedule ()

Private Attributes
double	theChi2cut
unsigned int	theIndex
bool	theIsAnnealed
std::vector< float >	theTemperatures

Detailed Description

Definition at line 7 of file DeterministicAnnealing.h.

Constructor & Destructor Documentation

DeterministicAnnealing() [1/2]

DeterministicAnnealing::DeterministicAnnealing

(

float

cutoff = 3.0

)

Definition at line 10 of file DeterministicAnnealing.cc.

    : theTemperatures({256, 64, 16, 4, 2, 1}), theIndex(0), theChi2cut(cutoff * cutoff), theIsAnnealed(false) {}

DeterministicAnnealing() [2/2]

DeterministicAnnealing::DeterministicAnnealing	(	const std::vector< float > &	sched,
		float	cutoff = 3.0
	)

Definition at line 13 of file DeterministicAnnealing.cc.

    : theTemperatures(sched), theIndex(0), theChi2cut(cutoff * cutoff), theIsAnnealed(false) {}

Member Function Documentation

anneal()

void DeterministicAnnealing::anneal ( )

overridevirtual

Implements AnnealingSchedule.

Definition at line 16 of file DeterministicAnnealing.cc.

                                    {
  if (theIndex < (theTemperatures.size() - 1)) {
    theIndex++;
  } else {
    theIsAnnealed = true;
  };
}

References theIndex, theIsAnnealed, and theTemperatures.

clone()

DeterministicAnnealing* DeterministicAnnealing::clone ( void  ) const

inlineoverridevirtual

Implements AnnealingSchedule.

Definition at line 48 of file DeterministicAnnealing.h.

{ return new DeterministicAnnealing(*this); };

currentTemp()

double DeterministicAnnealing::currentTemp ( ) const

overridevirtual

Implements AnnealingSchedule.

Definition at line 50 of file DeterministicAnnealing.cc.

{ return theTemperatures[theIndex]; }

References theIndex, and theTemperatures.

cutoff()

double DeterministicAnnealing::cutoff ( ) const

overridevirtual

Returns phi(chi2) / ( phi(cutoff^2) + sum_i { phi(chi2s[i]) } )

Implements AnnealingSchedule.

Definition at line 48 of file DeterministicAnnealing.cc.

{ return sqrt(theChi2cut); }

References mathSSE::sqrt(), and theChi2cut.

debug()

void DeterministicAnnealing::debug ( ) const

overridevirtual

Implements AnnealingSchedule.

Definition at line 56 of file DeterministicAnnealing.cc.

                                         {
  cout << "[DeterministicAnnealing] schedule=";
  for (vector<float>::const_iterator i = theTemperatures.begin(); i != theTemperatures.end(); ++i) {
    cout << *i << " ";
  };
  cout << endl;
}

References gather_cfg::cout, mps_fire::i, and theTemperatures.

initialTemp()

double DeterministicAnnealing::initialTemp ( ) const

overridevirtual

Implements AnnealingSchedule.

Definition at line 52 of file DeterministicAnnealing.cc.

{ return theTemperatures[0]; }

References theTemperatures.

isAnnealed()

bool DeterministicAnnealing::isAnnealed ( ) const

overridevirtual

is it annealed yet?

Implements AnnealingSchedule.

Definition at line 54 of file DeterministicAnnealing.cc.

{ return theIsAnnealed; }

References theIsAnnealed.

phi()

double DeterministicAnnealing::phi ( double  chi2 ) const

inlineoverridevirtual

phi ( chi2 ) = e^( -.5*chi2 / T )

Implements AnnealingSchedule.

Definition at line 46 of file DeterministicAnnealing.cc.

{ return exp(-.5 * chi2 / theTemperatures[theIndex]); }

References hltPixelTracks_cff::chi2, JetChargeProducer_cfi::exp, theIndex, and theTemperatures.

Referenced by Particle.Particle::__str__(), ntupleDataFormat.Track::phiPull(), and weight().

resetAnnealing()

void DeterministicAnnealing::resetAnnealing ( )

overridevirtual

Implements AnnealingSchedule.

Definition at line 41 of file DeterministicAnnealing.cc.

                                            {
  theIndex = 0;
  theIsAnnealed = false;
}

References theIndex, and theIsAnnealed.

weight()

double DeterministicAnnealing::weight ( double  chi2 ) const

overridevirtual

Returns phi(chi2) / ( phi(cutoff^2) + phi(chi2) ),

Implements AnnealingSchedule.

Definition at line 24 of file DeterministicAnnealing.cc.

                                                       {
  long double mphi = phi(chi2);
  /*
  if ( mphi < std::numeric_limits<double>::epsilon() ) return 0.;
  return 1. / ( 1. + phi ( theChi2cut * theChi2cut ) / mphi );
  */
  // return mphi / ( mphi + phi ( theChi2cut ) );
  long double newtmp = mphi / (mphi + phi(theChi2cut));
  if (edm::isNotFinite(newtmp)) {
    if (chi2 < theChi2cut)
      newtmp = 1.;
    else
      newtmp = 0.;
  }
  return newtmp;
}

References hltPixelTracks_cff::chi2, edm::isNotFinite(), phi(), and theChi2cut.

Member Data Documentation

theChi2cut

double DeterministicAnnealing::theChi2cut

private

Definition at line 53 of file DeterministicAnnealing.h.

Referenced by cutoff(), and weight().

theIndex

unsigned int DeterministicAnnealing::theIndex

private

Definition at line 52 of file DeterministicAnnealing.h.

Referenced by anneal(), currentTemp(), phi(), and resetAnnealing().

theIsAnnealed

bool DeterministicAnnealing::theIsAnnealed

private

Definition at line 54 of file DeterministicAnnealing.h.

Referenced by anneal(), isAnnealed(), and resetAnnealing().

theTemperatures

std::vector<float> DeterministicAnnealing::theTemperatures

private

Definition at line 48 of file DeterministicAnnealing.h.

Referenced by anneal(), currentTemp(), debug(), initialTemp(), and phi().