quickrank::io::Svml Class Reference

This class implements IO on Svml files. More...

#include <svml.h>

Public Member Functions
	Svml ()
	Creates a new Svml IO reader/writer. More...
virtual	~Svml ()
virtual std::unique_ptr< data::Dataset >	read_horizontal (const std::string &file)
	Reads the input dataset and returns in horizontal format. More...
virtual void	write (std::shared_ptr< data::Dataset >, const std::string &file)
	Write the dataset to an output file. More...

Private Member Functions
virtual std::ostream &	put (std::ostream &os) const
	Prints the data reading time stats. More...

Private Attributes
double	reading_time_ = 0.0
double	processing_time_ = 0.0
long	file_size_ = 0

Friends
std::ostream &	operator<< (std::ostream &os, const Svml &me)
	The output stream operator. More...

Detailed Description

This class implements IO on Svml files.

SVML format is as follows:

<line> .=. <target> qid:<qid> <feature>:<value> <feature>:<value> ... <feature>:<value> # <info>
<target> .=. <float>
<qid> .=. <positive integer>
<feature> .=. <positive integer>
<value> .=. <float>
<info> .=. <string>

Todo:

TODO: handle feature filtering

Constructor & Destructor Documentation

quickrank::io::Svml::Svml ( )

inline

Creates a new Svml IO reader/writer.

Parameters

k	The cut-off threshold.

virtual quickrank::io::Svml::~Svml ( )

inlinevirtual

Member Function Documentation

std::ostream & quickrank::io::Svml::put ( std::ostream &  os ) const

privatevirtual

Prints the data reading time stats.

std::unique_ptr< data::Dataset > quickrank::io::Svml::read_horizontal ( const std::string &  file )

virtual

Reads the input dataset and returns in horizontal format.

Parameters

file	the input filename.

Returns

The svml dataset in horizontal format.

void quickrank::io::Svml::write ( std::shared_ptr< data::Dataset >  dataset, const std::string &  file  )

virtual

Write the dataset to an output file.

Parameters

file	the output filename.

Returns

The svml dataset in horizontal format.

Friends And Related Function Documentation

std::ostream& operator<< ( std::ostream &  os, const Svml &  me  )

friend

The output stream operator.

Prints the data reading time stats.

Member Data Documentation

long quickrank::io::Svml::file_size_ = 0

private

double quickrank::io::Svml::processing_time_ = 0.0

private

double quickrank::io::Svml::reading_time_ = 0.0

private

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

• include/io/svml.h
• src/io/svml.cc