TRTPIDNN.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
#ifndef INDETTRTPIDNN_H
#define INDETTRTPIDNN_H

// TRTPIDNN.h, (c) ATLAS Detector software
 
/****************************************************************************************\
 
  Class to wrap the lwtnn instance of the TRT PID NN. It is instantiated in PIDNNCondAlg.
 
  Author: Christian Grefe (christian.grefe@cern.ch)
 
\****************************************************************************************/
#include "GaudiKernel/StatusCode.h"
#include "AthenaKernel/CLASS_DEF.h"
#include "AthenaKernel/CondCont.h"
#include "lwtnn/LightweightGraph.hh"
#include <map>
#include <memory>
#include <string>
#include <vector>
 
namespace InDet {
  class TRTPIDNN {
  public:
    TRTPIDNN()=default;
    virtual ~TRTPIDNN()=default;
 
    const std::string& getDefaultOutputNode() const {
      return m_outputNode;
    }
 
    const std::string& getDefaultOutputLabel() const {
      return m_outputLabel;
    }
 
    // get the structure of the scalar inputs to the NN
    const std::map<std::string, std::map<std::string, double>>& getScalarInputs() const {
      return m_scalarInputs;
    }
 
    // get the structure of the vector inputs to the NN
    const std::map<std::string, std::map<std::string, std::vector<double>>>& getVectorInputs() const {
      return m_vectorInputs;
    }
 
    // calculate NN response for default output node and label
    double evaluate(std::map<std::string, std::map<std::string, double>>& scalarInputs,
             std::map<std::string, std::map<std::string, std::vector<double>>>& vectorInputs) const {
      return evaluate(scalarInputs, vectorInputs, m_outputNode, m_outputLabel);
    }
 
    // calculate NN response
    double evaluate(std::map<std::string, std::map<std::string, double>>& scalarInputs,
             std::map<std::string, std::map<std::string, std::vector<double>>>& vectorInputs,
             const std::string& outputNode, const std::string& outputLabel) const;
 
    // set up the NN
    StatusCode configure(const std::string& json);
 
  private:
    std::unique_ptr<lwt::LightweightGraph> m_nn;   // the NN
    lwt::GraphConfig m_nnConfig;  // cofiguration of the NN
    std::map<std::string, std::map<std::string, double>> m_scalarInputs;  // template for the structure of the scalar inputs to the NN
    std::map<std::string, std::map<std::string, std::vector<double>>> m_vectorInputs;  // template for the structure of the vector inputs to the NN
    std::string m_outputNode;  // name of the output node of the NN
    std::string m_outputLabel;  // name of the output label of the NN
};
}
CLASS_DEF(InDet::TRTPIDNN,341715853,1)
CONDCONT_DEF(InDet::TRTPIDNN,710491600);
 
#endif