File view_statistic_example_wise_dense.hpp¶

namespace boosting

class DenseExampleWiseStatisticView : public CompositeMatrix<AllocatedCContiguousView<float64>, AllocatedCContiguousView<float64>>¶

#include <view_statistic_example_wise_dense.hpp>

Implements row-wise read and write access to the gradients and Hessians that have been calculated using a non-decomposable loss function and are stored in pre-allocated C-contiguous arrays.

Public Types

typedef AllocatedCContiguousView<float64>::value_const_iterator gradient_const_iterator¶: An iterator that provides read-only access to the gradients.

typedef AllocatedCContiguousView<float64>::value_iterator gradient_iterator¶: An iterator that provides access to the gradients and allows to modify them.

typedef AllocatedCContiguousView<float64>::value_const_iterator hessian_const_iterator¶: An iterator that provides read-only access to the Hessians.

typedef AllocatedCContiguousView<float64>::value_iterator hessian_iterator¶: An iterator that provides access to the Hessians and allows to modify them.

typedef DiagonalConstIterator<float64> hessian_diagonal_const_iterator¶: An iterator that provides read-only access to the Hessians that correspond to the diagonal of the matrix.

Public Functions

DenseExampleWiseStatisticView(uint32 numRows, uint32 numCols)¶

Parameters:

numRows – The number of rows in the view
numCols – The number of columns in the view

DenseExampleWiseStatisticView(DenseExampleWiseStatisticView &&other)¶

Parameters:: other – A reference to an object of type DenseExampleWiseStatisticView that should be copied

inline virtual ~DenseExampleWiseStatisticView() override¶

gradient_const_iterator gradients_cbegin(uint32 row) const¶

Returns a gradient_const_iterator to the beginning of the gradients at a specific row.

Parameters:: row – The row
Returns:: A gradient_const_iterator to the beginning of the given row

gradient_const_iterator gradients_cend(uint32 row) const¶

Returns a gradient_const_iterator to the end of the gradients at a specific row.

Parameters:: row – The row
Returns:: A gradient_const_iterator to the end of the given row

gradient_iterator gradients_begin(uint32 row)¶

Returns a gradient_iterator to the beginning of the gradients at a specific row.

Parameters:: row – The row
Returns:: A gradient_iterator to the beginning of the given row

gradient_iterator gradients_end(uint32 row)¶

Returns a gradient_iterator to the end of the gradients at a specific row.

Parameters:: row – The row
Returns:: A gradient_iterator to the end of the given row

hessian_const_iterator hessians_cbegin(uint32 row) const¶

Returns a hessian_const_iterator to the beginning of the Hessians at a specific row.

Parameters:: row – The row
Returns:: A hessian_const_iterator to the beginning of the given row

hessian_const_iterator hessians_cend(uint32 row) const¶

Returns a hessian_const_iterator to the end of the Hessians at a specific row.

Parameters:: row – The row
Returns:: A hessian_const_iterator to the end of the given row

hessian_diagonal_const_iterator hessians_diagonal_cbegin(uint32 row) const¶

Returns a hessian_diagonal_const_iterator to the beginning of the Hessians that correspond to the diagonal of the Hessian matrix at a specific row.

Parameters:: row – The row
Returns:: A hessian_diagonal_const_iterator to the beginning

hessian_diagonal_const_iterator hessians_diagonal_cend(uint32 row) const¶

Returns a hessian_diagonal_const_iterator to the end of the Hessians that correspond to the diagonal of the Hessian matrix at a specific row.

Parameters:: row – The row
Returns:: A hessian_diagonal_const_iterator to the end

hessian_iterator hessians_begin(uint32 row)¶

Returns a hessian_iterator to the beginning of the Hessians at a specific row.

Parameters:: row – The row
Returns:: A hessian_iterator to the beginning of the given row

hessian_iterator hessians_end(uint32 row)¶

Returns a hessian_iterator to the end of the Hessians at a specific row.

Parameters:: row – The row
Returns:: A hessian_iterator to the end of the given row