MVAUtils::ForestXGBoostBase< Node_t > Class Template Reference

#include <ForestXGBoost.h>

Inheritance diagram for MVAUtils::ForestXGBoostBase< Node_t >:

Collaboration diagram for MVAUtils::ForestXGBoostBase< Node_t >:

Public Member Functions
virtual float	GetClassification (const std::vector< float > &values) const final
	Compute the prediction of a classification. More...
virtual float	GetClassification (const std::vector< float * > &pointers) const final
virtual float	GetTreeResponse (const std::vector< float > &values, unsigned int itree) const override final
	Return the response of one tree Must pass the features in a std::vector<float> values and the index of the tree. More...
virtual float	GetTreeResponse (const std::vector< float * > &pointers, unsigned int itree) const override final
virtual float	GetOffset () const override
	Return the offset of the forest. More...
virtual float	GetRawResponse (const std::vector< float > &values) const override final
	Return the response of the whole Forest. More...
virtual float	GetRawResponse (const std::vector< float * > &pointers) const override final
virtual float	GetResponse (const std::vector< float > &values) const override
	Compute the prediction for regression. More...
virtual float	GetResponse (const std::vector< float * > &pointers) const override
virtual std::vector< float >	GetMultiResponse (const std::vector< float > &values, unsigned int numClasses) const override
	Compute the prediction for multiclassification (a score for each class). More...
virtual std::vector< float >	GetMultiResponse (const std::vector< float * > &pointers, unsigned int numClasses) const override
virtual unsigned int	GetNTrees () const override final
virtual void	PrintForest () const override
virtual void	PrintTree (unsigned int itree) const override
std::vector< Node_t >	GetTree (unsigned int itree) const
	Return the vector of nodes for the tree itree. More...
virtual TTree *	WriteTree (TString) const =0
	Return a TTree representing the BDT. More...
virtual int	GetNVars () const =0
	Get the number of input variable to be passed with std::vector to Get* methods. More...

Protected Member Functions
float	GetTreeResponseFromNode (const std::vector< float > &values, index_t index) const
	Get the response of a tree. More...
float	GetTreeResponseFromNode (const std::vector< float * > &pointers, index_t index) const
void	newTree (const std::vector< Node_t > &nodes)
	append a new tree (defined by a vector of nodes serialized in preorder) to the forest More...

Private Attributes
std::vector< index_t >	m_forest
	indices of the top-level nodes of each tree More...
std::vector< Node_t >	m_nodes
	where the nodes of the forest are stored More...

Detailed Description

template<typename Node_t>
class MVAUtils::ForestXGBoostBase< Node_t >

Definition at line 28 of file ForestXGBoost.h.

Member Function Documentation

GetClassification() [1/2]

template<typename Node_t >

virtual float MVAUtils::ForestXGBoostBase< Node_t >::GetClassification ( const std::vector< float * > &  pointers ) const

inlinefinalvirtual

Implements MVAUtils::IForest.

Definition at line 37 of file ForestXGBoost.h.

        {
            return detail::sigmoid(GetResponse(pointers));
        }

GetClassification() [2/2]

template<typename Node_t >

virtual float MVAUtils::ForestXGBoostBase< Node_t >::GetClassification ( const std::vector< float > &  values ) const

inlinefinalvirtual

Compute the prediction of a classification.

Implements MVAUtils::IForest.

Definition at line 33 of file ForestXGBoost.h.

        {
            return detail::sigmoid(GetResponse(values));
        }

GetMultiResponse() [1/2]

template<typename Node_t >

virtual std::vector<float> MVAUtils::Forest< Node_t >::GetMultiResponse ( const std::vector< float * > &  pointers, unsigned int  numClasses  ) const

overridevirtualinherited

Implements MVAUtils::IForest.

GetMultiResponse() [2/2]

template<typename Node_t >

virtual std::vector<float> MVAUtils::Forest< Node_t >::GetMultiResponse ( const std::vector< float > &  values, unsigned int  numClasses  ) const

overridevirtualinherited

Compute the prediction for multiclassification (a score for each class).

In addition to the input values need to pass the number of classes

Implements MVAUtils::IForest.

GetNTrees()

template<typename Node_t >

virtual unsigned int MVAUtils::Forest< Node_t >::GetNTrees ( ) const

inlinefinaloverridevirtualinherited

Implements MVAUtils::IForest.

Definition at line 94 of file Forest.h.

      {
        return m_forest.size();
      }

GetNVars()

virtual int MVAUtils::IForest::GetNVars ( ) const

pure virtualinherited

Get the number of input variable to be passed with std::vector to Get* methods.

Implemented in MVAUtils::ForestTMVA, MVAUtils::ForestLGBM, MVAUtils::ForestXGBoost, and MVAUtils::ForestLGBMSimple.

GetOffset()

template<typename Node_t >

virtual float MVAUtils::Forest< Node_t >::GetOffset ( ) const

inlineoverridevirtualinherited

Return the offset of the forest.

Since by default there is no offset, return 0

Implements MVAUtils::IForest.

Reimplemented in MVAUtils::ForestWeighted< Node_t >, and MVAUtils::ForestWeighted< NodeTMVA >.

Definition at line 63 of file Forest.h.

{ return 0.; }

GetRawResponse() [1/2]

template<typename Node_t >

virtual float MVAUtils::Forest< Node_t >::GetRawResponse ( const std::vector< float * > &  pointers ) const

finaloverridevirtualinherited

Implements MVAUtils::IForest.

GetRawResponse() [2/2]

template<typename Node_t >

virtual float MVAUtils::Forest< Node_t >::GetRawResponse ( const std::vector< float > &  values ) const

finaloverridevirtualinherited

Return the response of the whole Forest.

Raw is just the sum of all the trees

Implements MVAUtils::IForest.

GetResponse() [1/2]

template<typename Node_t >

virtual float MVAUtils::Forest< Node_t >::GetResponse ( const std::vector< float * > &  pointers ) const

overridevirtualinherited

Implements MVAUtils::IForest.

Reimplemented in MVAUtils::ForestTMVA.

GetResponse() [2/2]

template<typename Node_t >

virtual float MVAUtils::Forest< Node_t >::GetResponse ( const std::vector< float > &  values ) const

overridevirtualinherited

Compute the prediction for regression.

Implements MVAUtils::IForest.

Reimplemented in MVAUtils::ForestTMVA.

GetTree()

template<typename Node_t >

std::vector<Node_t> MVAUtils::Forest< Node_t >::GetTree ( unsigned int  itree ) const

inherited

Return the vector of nodes for the tree itree.

GetTreeResponse() [1/2]

template<typename Node_t >

virtual float MVAUtils::Forest< Node_t >::GetTreeResponse ( const std::vector< float * > &  pointers, unsigned int  itree  ) const

finaloverridevirtualinherited

Implements MVAUtils::IForest.

GetTreeResponse() [2/2]

template<typename Node_t >

virtual float MVAUtils::Forest< Node_t >::GetTreeResponse ( const std::vector< float > &  values, unsigned int  itree  ) const

finaloverridevirtualinherited

Return the response of one tree Must pass the features in a std::vector<float> values and the index of the tree.

Implements MVAUtils::IForest.

GetTreeResponseFromNode() [1/2]

template<typename Node_t >

float MVAUtils::Forest< Node_t >::GetTreeResponseFromNode ( const std::vector< float * > &  pointers, index_t  index  ) const

protectedinherited

GetTreeResponseFromNode() [2/2]

template<typename Node_t >

float MVAUtils::Forest< Node_t >::GetTreeResponseFromNode ( const std::vector< float > &  values, index_t  index  ) const

protectedinherited

Get the response of a tree.

Instead of specifying the index of the tree (as in GetTreeResponse) the index of the top node of the tree should be specified

newTree()

template<typename Node_t >

void MVAUtils::Forest< Node_t >::newTree ( const std::vector< Node_t > &  nodes )

protectedinherited

append a new tree (defined by a vector of nodes serialized in preorder) to the forest

PrintForest()

template<typename Node_t >

virtual void MVAUtils::Forest< Node_t >::PrintForest ( ) const

overridevirtualinherited

Implements MVAUtils::IForest.

PrintTree()

template<typename Node_t >

virtual void MVAUtils::Forest< Node_t >::PrintTree ( unsigned int  itree ) const

overridevirtualinherited

Implements MVAUtils::IForest.

Reimplemented in MVAUtils::ForestWeighted< Node_t >, and MVAUtils::ForestWeighted< NodeTMVA >.

WriteTree()

virtual TTree* MVAUtils::IForest::WriteTree ( TString  ) const

pure virtualinherited

Return a TTree representing the BDT.

The called is the owner of the returned TTree

Implemented in MVAUtils::ForestTMVA, MVAUtils::ForestLGBM, MVAUtils::ForestXGBoost, and MVAUtils::ForestLGBMSimple.

Member Data Documentation

m_forest

template<typename Node_t >

std::vector<index_t> MVAUtils::Forest< Node_t >::m_forest

privateinherited

indices of the top-level nodes of each tree

Definition at line 117 of file Forest.h.

m_nodes

template<typename Node_t >

std::vector<Node_t> MVAUtils::Forest< Node_t >::m_nodes

privateinherited

where the nodes of the forest are stored

Definition at line 118 of file Forest.h.

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The documentation for this class was generated from the following file:

• ForestXGBoost.h