CopyTask Class Reference

Generator of instances of the binary sequence copy task. More...

Public Member Functions
	CopyTask (const size_t maxLength, const size_t nRepeats, const bool addSeparator=false)
	Creates an instance of the sequence copy task. More...
void	Generate (arma::field< arma::mat > &input, arma::field< arma::mat > &labels, const size_t batchSize, bool fixedLength=false) const
	Generate dataset of a given size. More...
void	Generate (arma::mat &input, arma::mat &labels, const size_t batchSize) const
	Generate dataset of a given size and store it in arma::mat object. More...

Detailed Description

Generator of instances of the binary sequence copy task.

The parameters are:

• maximum sequence length;
• number of sequence repetitions.

Input/output sequences are aligned to have the same length: input sequence is padded with zeros from the right end, output sequence is padded with zeros from the left end. The sequences are formed of 2-dimensional vectors of the format [sequence element, input flag], where input flag = 0 iff first vector element is a sequence element.

Generated datasets are compliant with mlpack format - every dataset element is shaped as a vector of length (elem-length) * (input sequence length + target sequence length), where elem-lemgth is 2 for input sequences and 1 for output sequences.

Example of generated dataset (sequence length = 3, repetition count = 2):

• Input sequence: [1,0,0,0,1,0,0,1,0,1,0,1,0,1,0,1,0,1]
• Output sequences: [0,0,0,1,0,1,1,0,1]

Definition at line 48 of file copy.hpp.

Constructor & Destructor Documentation

CopyTask()

CopyTask	(	const size_t	maxLength,
		const size_t	nRepeats,
		const bool	addSeparator = false
	)

Creates an instance of the sequence copy task.

Parameters

maxLength	Maximum length of sequence that has to be repeated by model.
nRepeats	Number of repeates required to solve the task.
addSeparator	Flag indicating whether generator should emit separating symbol after input sequence.

Member Function Documentation

Generate() [1/2]

void Generate	(	arma::field< arma::mat > &	input,
		arma::field< arma::mat > &	labels,
		const size_t	batchSize,
		bool	fixedLength = false
	)		const

Generate dataset of a given size.

Parameters

input	The variable to store input sequences.
labels	The variable to store output sequences.
batchSize	The dataset size.
fixedLength	Set to true to denoted fixed length dataset.

Generate() [2/2]

void Generate	(	arma::mat &	input,
		arma::mat &	labels,
		const size_t	batchSize
	)		const

Generate dataset of a given size and store it in arma::mat object.

Parameters

input	The variable to store input sequences.
labels	The variable to store output sequences.
batchSize	The dataset size.

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

• /home/ryan/src/mlpack.org/_src/mlpack-git/src/mlpack/methods/ann/augmented/tasks/copy.hpp