dragon.ml.seqmodel.data

Interface Dataset

All Known Implementing Classes:

BasicDataset

public interface Dataset

The basic interface to be implemented by the user of this package for providing training and test data to the learner.

Author:

Sunita Sarawagi

Method Summary

Modifier and Type	Method and Description
int	getLabelNum() Gets the number of unique labels.
int	getMarkovOrder() Gets the order of the markov chain
int	getOriginalLabelNum() Gets the number of original unique labels no matter what order the markov chain is.
boolean	hasNext() Tests if the next sequence exists
DataSequence	next() Reads out the next sequence
int	size() Gets the number of sequences in the dataset
void	startScan() Moves the pointer to the position before the first sequence.

Method Detail

startScan

void startScan()

Moves the pointer to the position before the first sequence.

hasNext

boolean hasNext()

Tests if the next sequence exists

Returns:

true if next sequence exists

next

DataSequence next()

Reads out the next sequence

Returns:

the next sequence if any, otherwise null

getLabelNum

int getLabelNum()

Gets the number of unique labels. If there are 4 original labels and the markov chain is of the second order, this method returns 16.

Returns:

the number of unique labels.

getOriginalLabelNum

int getOriginalLabelNum()

Gets the number of original unique labels no matter what order the markov chain is.

Returns:

the number of original unique labels no matter what order the markov chain is.

getMarkovOrder

int getMarkovOrder()

Gets the order of the markov chain

Returns:

the order of the markov chain

size

int size()

Gets the number of sequences in the dataset

Returns:

the number of sequences in the dataset