Public Member Functions
void	InitData (DMatrix p_fmat, RegTree const p_tree, common::Span< float > hess)

CPUExpandEntry	InitRoot (DMatrix p_fmat, std::vector< GradientPair > const &gpair, common::Span< float > hess, RegTree p_tree)

void	UpdatePredictionCache (DMatrix const *data, linalg::MatrixView< float > out_preds) const

void	BuildHistogram (DMatrix p_fmat, RegTree p_tree, std::vector< CPUExpandEntry > const &valid_candidates, std::vector< GradientPair > const &gpair, common::Span< float > hess)

void	LeafPartition (RegTree const &tree, common::Span< float const > hess, std::vector< bst_node_t > *p_out_position)

	GloablApproxBuilder (TrainParam const param, HistMakerTrainParam const hist_param, MetaInfo const &info, Context const ctx, std::shared_ptr< common::ColumnSampler > column_sampler, ObjInfo const task, common::Monitor *monitor)

void	UpdateTree (DMatrix p_fmat, std::vector< GradientPair > const &gpair, common::Span< float > hess, RegTree p_tree, HostDeviceVector< bst_node_t > *p_out_position)

Protected Attributes
TrainParam const *	param_

HistMakerTrainParam const *	hist_param_ {nullptr}

std::shared_ptr< common::ColumnSampler >	col_sampler_

HistEvaluator	evaluator_

MultiHistogramBuilder	histogram_builder_

Context const *	ctx_

ObjInfo const *const	task_

std::vector< CommonRowPartitioner >	partitioner_

RegTree *	p_last_tree_ {nullptr}

common::Monitor *	monitor_

size_t	n_batches_ {0}

common::HistogramCuts	feature_values_

Member Function Documentation

◆ UpdateTree()

void xgboost::tree::GloablApproxBuilder::UpdateTree	(	DMatrix *	p_fmat,
		std::vector< GradientPair > const &	gpair,
		common::Span< float >	hess,
		RegTree *	p_tree,
		HostDeviceVector< bst_node_t > *	p_out_position
	)

inline

Note for update position Root: Not applied: No need to update position as initialization has got all the rows ordered. Applied: Update position is run on applied nodes so the rows are partitioned. Non-root: Not applied: That node is root of the subtree, same rule as root. Applied: Ditto

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

External/xgboost/src/tree/updater_approx.cc

Public Member Functions

Protected Attributes

Member Function Documentation

◆ UpdateTree()