it.uniroma2.sag.kelp.data.examplegenerator

Interface SequenceExampleGenerator

All Known Implementing Classes:

SequenceExampleGeneratorKernel, SequenceExampleGeneratorLinear

public interface SequenceExampleGenerator

A SequenceExampleGenerator generates a copy of an input Example (reflecting an item in a SequenceExample) enriched with information derived from the s assigned to the previous n examples.
This allows the SequenceClassificationLearningAlgorithm to learn from the observations that are derived from a targeted example, but also from its history, in terms of labels assigned to previous examples.

Author:

Danilo Croce

Method Summary

Methods

Modifier and Type	Method and Description
Example	generateExampleWithHistory(SequenceExample sequenceExample, SequencePath sequencePath, int offset) At labeling time, this method allows to enrich a specific Example with the labels assigned by the classifier to the previous Examples
SequenceExample	generateSequenceExampleEnrichedWithHistory(SequenceExample sequenceExample) This method allows to enrich each Example from an input SequenceExample with the labels assigned by the classifier to the previous Examples
int	getTransitionsOrder()

Method Detail

generateExampleWithHistory

Example generateExampleWithHistory(SequenceExample sequenceExample,
                                 SequencePath sequencePath,
                                 int offset)

At labeling time, this method allows to enrich a specific Example with the labels assigned by the classifier to the previous Examples

Parameters:

sequenceExample - The targeted sequence

sequencePath - the sequence of Label assigned from a classifier to the SequenceExamlpe

offset - the offset of the targeted word in the sequence

Returns:

generateSequenceExampleEnrichedWithHistory

SequenceExample generateSequenceExampleEnrichedWithHistory(SequenceExample sequenceExample)

This method allows to enrich each Example from an input SequenceExample with the labels assigned by the classifier to the previous Examples

Parameters:

sequenceExample - The input sequence

Returns:

getTransitionsOrder

int getTransitionsOrder()

Returns:

the number n of elements (in the sequence) whose labels are to be considered to enrich a targeted element