edu.ucla.sspace.wordsi

Interface ContextExtractor

All Known Implementing Classes:

DependencyContextExtractor, GeneralContextExtractor, PreComputedContextExtractor, PseudoWordContextExtractor, PseudoWordDependencyContextExtractor, SemEvalContextExtractor, SemEvalDependencyContextExtractor, TopicModelContextExtractor

public interface ContextExtractor

An interface for extracting context vectors from a document and passing on the vector to a Wordsi implementation. Implementations are recomended to use either a ContextGenerator or a BasisMapping that is serializable. Use of a ContextGenerator or a BasisMapping separates the feature space from the text traveral, allowing the feature space to be reused, even if a different text traversal method needs to be used.

Author:

Keith Stevens

Method Summary

Methods

Modifier and Type	Method and Description
int	getVectorLength() Returns the maximum number of dimensions used to represent any given context.
void	processDocument(BufferedReader document, Wordsi wordsi) Processes the content of document and calls Wordsi.handleContextVector(java.lang.String, java.lang.String, edu.ucla.sspace.vector.SparseDoubleVector) for each context vector that can be extracted from document.

Method Detail

processDocument

void processDocument(BufferedReader document,
                   Wordsi wordsi)

Processes the content of document and calls Wordsi.handleContextVector(java.lang.String, java.lang.String, edu.ucla.sspace.vector.SparseDoubleVector) for each context vector that can be extracted from document.

getVectorLength

int getVectorLength()

Returns the maximum number of dimensions used to represent any given context.