org.ranksys.formats.factorization

Interface FactorizationFormat

All Known Implementing Classes:

SimpleFactorizationFormat

public interface FactorizationFormat

Matrix factorisation format.

Author:

Saúl Vargas (Saul@VargasSandoval.es)

Method Summary

Modifier and Type	Method and Description
<U,I> Factorization<U,I>	load(InputStream in, FastUserIndex<U> uIndex, FastItemIndex<I> iIndex) Loads a matrix from a compressed input stream.
<U,I> void	save(Factorization<U,I> factorization, OutputStream out) Saves this matrix factorization to a compressed output stream.

Method Detail

load

<U,I> Factorization<U,I> load(InputStream in,
                              FastUserIndex<U> uIndex,
                              FastItemIndex<I> iIndex)
                       throws IOException

Loads a matrix from a compressed input stream.

Type Parameters:

U - type of the users

I - type of the items

Parameters:

in - input stream

uIndex - fast user index

iIndex - fast item index

Returns:

a factorization

Throws:

IOException - when IO error

save

<U,I> void save(Factorization<U,I> factorization,
                OutputStream out)
         throws IOException

Saves this matrix factorization to a compressed output stream.

Type Parameters:

U - type of the users

I - type of the items

Parameters:

factorization - factorization

out - output stream

Throws:

IOException - when IO error