A random accessable dataset which provides GetLen() and GetItem(). Unlike DataIter, it's a static lookup storage which is friendly to random access. The dataset itself should NOT contain data processing, which should be applied during data augmentation or transformation processes. More...

#include <io.h>

Collaboration diagram for mxnet::Dataset:

Public Member Functions
virtual uint64_t	GetLen (void) const =0
	Get the size of the dataset. More...

virtual bool	GetItem (uint64_t idx, std::vector< NDArray > *ret)=0
	Get the ndarray items given index in dataset. More...

virtual	~Dataset (void)

Detailed Description

A random accessable dataset which provides GetLen() and GetItem(). Unlike DataIter, it's a static lookup storage which is friendly to random access. The dataset itself should NOT contain data processing, which should be applied during data augmentation or transformation processes.

Constructor & Destructor Documentation

◆ ~Dataset()

virtual mxnet::Dataset::~Dataset ( void )

inlinevirtual

Member Function Documentation

◆ GetItem()

virtual bool mxnet::Dataset::GetItem	(	uint64_t	idx,
		std::vector< NDArray > *	ret
	)

pure virtual

Get the ndarray items given index in dataset.

Parameters

idx	the integer index for required data
ret	the returned ndarray items

◆ GetLen()

virtual uint64_t mxnet::Dataset::GetLen ( void ) const