Utils to produce Constituent -> vector<double> functions. More...

Classes
class	CustomSequenceGetter
	Template class to extract features from sequence of constituents. More...

Typedefs
using	IParticles = std::vector<const xAOD::IParticle*>
using	Tracks = std::vector<const xAOD::TrackParticle*>
using	SequenceFromIParticles
using	SequenceFromTracks

Functions
std::function< std::pair< std::string, double >(const xAOD::Vertex &)>	customGetterAndName (const std::string &)
template<typename T>
std::pair< std::function< std::vector< double >(const xAOD::Vertex &, const std::vector< const T * > &)>, std::set< std::string > >	customSequenceGetterWithDeps (const std::string &name, const std::string &prefix)
template<typename T>
std::pair< std::function< std::vector< double >(const xAOD::Vertex &, const std::vector< const T * > &)>, std::set< std::string > >	customSequenceGetterWithDeps (const std::string &name)

Detailed Description

Utils to produce Constituent -> vector<double> functions.

The GNN configures its inputs when the algorithm is initalized, meaning that the list of vertex and constituent properties that are used as inputs won't be known at compile time. Instead we build an array of "getter" functions, each of which returns one input for the tagger. The function here returns those getter functions.

Many of the getter functions are trivial: they will, for example, read one double of auxdata off of the Vertex object. The sequence input getters tend to be more complicated. Since we'd like to avoid reimplementing the logic in these functions in multiple places, they are exposed here.

NOTE: This file is for experts only, don't expect support.

Typedef Documentation

◆ IParticles

using InDetGNNHardScatterSelection::getter_utils::IParticles = std::vector<const xAOD::IParticle*>

Definition at line 48 of file InnerDetector/InDetRecTools/InDetGNNHardScatterSelection/InDetGNNHardScatterSelection/CustomGetterUtils.h.

◆ SequenceFromIParticles

using InDetGNNHardScatterSelection::getter_utils::SequenceFromIParticles

Initial value:

 std::function<std::vector<double>(
            const xAOD::Vertex&,
            const IParticles&)>

Definition at line 51 of file InnerDetector/InDetRecTools/InDetGNNHardScatterSelection/InDetGNNHardScatterSelection/CustomGetterUtils.h.

◆ SequenceFromTracks

using InDetGNNHardScatterSelection::getter_utils::SequenceFromTracks

Initial value:

 std::function<std::vector<double>(
            const xAOD::Vertex&,
            const Tracks&)>

Definition at line 54 of file InnerDetector/InDetRecTools/InDetGNNHardScatterSelection/InDetGNNHardScatterSelection/CustomGetterUtils.h.

◆ Tracks

using InDetGNNHardScatterSelection::getter_utils::Tracks = std::vector<const xAOD::TrackParticle*>

Definition at line 49 of file InnerDetector/InDetRecTools/InDetGNNHardScatterSelection/InDetGNNHardScatterSelection/CustomGetterUtils.h.

Function Documentation

◆ customGetterAndName()

std::function< std::pair< std::string, double >(const xAOD::Vertex &)> InDetGNNHardScatterSelection::getter_utils::customGetterAndName ( const std::string & name )

Definition at line 206 of file InnerDetector/InDetRecTools/InDetGNNHardScatterSelection/Root/CustomGetterUtils.cxx.

                                               {
      auto getter = customGetter(name);
      return [name, getter](const xAOD::Vertex& j) {
               return std::make_pair(name, getter(j));
             };
    }

◆ customSequenceGetterWithDeps() [1/2]

template<typename T>

std::pair< std::function< std::vector< double >(const xAOD::Vertex &, const std::vector< const T * > &)>, std::set< std::string > > InDetGNNHardScatterSelection::getter_utils::customSequenceGetterWithDeps ( const std::string & name )

Definition at line 221 of file InnerDetector/InDetRecTools/InDetGNNHardScatterSelection/Root/CustomGetterUtils.cxx.

                                                        {
 
      if (auto getter = getterFromIParticles<T>(name)){
        return {*getter, {}};
      }
      throw std::logic_error("no match for custom getter " + name);
    }

◆ customSequenceGetterWithDeps() [2/2]