LSA_Toolkit::LSASpace Class Reference

API access class for the LSA_Toolkit LSASpace. More...

#include <lsaspace.h>

List of all members.

Public Member Functions
	LSASpace (Environment *)
	LSASpace constructor for an empty LSASpace object.
	LSASpace (Environment *, SparseMatrix *)
	LSASpace constructor for a computed LSASpace object.
	~LSASpace ()
	Common destructor for all LSASpace objects.
void	textDump ()
	Dump an LSASpace object to text output files.
void	binDump ()
	Dump an LSASpace object to a binary output file with a default name.
void	binDump (std::string filename)
	Dump an LSASpace object to a binary output file with a specified name.
void	binLoad ()
	Load an LSASpace object from a binary file with the default name.
void	binLoad (std::string filename)
	Load an LSASpace object from a binary file with a specified name.
bool	isEmpty ()
	Check if the LSASpace object contains data or is empty.
bool	isQOptimized ()
	Check if LSASpace has been optimized for query processing.
std::size_t	numSVals ()
	Get the number of singular values computed for the LSASpace object.
std::size_t	rowVecSize ()
	Get the number of row type entries in the LSASpace.
std::size_t	colVecSize ()
	Get the number of column type entries in the LSASpace.
void	qOptimize ()
	Optimize the LSASpace for query processing.
void	compareTermxTermspace (std::size_t termId, std::valarray< double > *cosListPtr)
	Perform a simple comparison of one term vector to all other term vectors in termspace.
void	compareTermxDocspace (std::size_t termId, std::valarray< double > *cosListPtr)
	Perform a simple cross comparison of one term vector to all the document vectors in docspace.
void	compareDocxTermspace (std::size_t docId, std::valarray< double > *cosListPtr)
	Perform a simple cross comparison of one document vector to all the term vectors in termspace.
void	compareDocxDocspace (std::size_t docId, std::valarray< double > *cosListPtr)
	Perform a simple comparison of one document vector to all the document vectors in docspace.
void	termQuery (const std::vector< size_t > &qtermIds, const std::vector< size_t > &qtermFreqs, std::valarray< double > *cosListPtr)
	Computes a list of cosines between the Query and all terms in termspace.
void	docQuery (const std::vector< size_t > &qtermIds, const std::vector< size_t > &qtermFreqs, std::valarray< double > *cosListPtr)
	Computes the list of cosines between a Query and all docs in docspace.
Public Attributes
LSASpace_Impl *	ptr

---

Detailed Description

API access class for the LSA_Toolkit LSASpace.

The LSASpace class contains the generated LSA Space and the query processing functionality for Latent Semantic Analysis tasks. Construction of the LSASpace object using a SparseMatrix for input performs the truncated Singular Value Decomposition on the input matrix.

---

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

• lsaspace.h
• lsaspace.cpp