matfaust::demo::hadamard Class Reference

The demo for the hierarchical factorization of Hadamard matrices. More...

Static Public Member Functions
static function	demo_fact_hadamard ()
	This demo hierarchically factorizes the Hadamard dictionary and then plots the results. More...
static function	norm_hadamard ()
	This demo makes some time comparison between the 2-norm of the Hadamard matrix and its Faust representation for different dimension of the Hadamard matrix. More...
static function	speed_up_hadamard ()
	This demo makes some time comparison between (Hadamard matrix)-vector multiplication and (Hadamard factorisation i.e a FAuST)-vector multiplication for different dimension of the Hadamard matrix. More...

Detailed Description

The demo for the hierarchical factorization of Hadamard matrices.

Member Function Documentation

demo_fact_hadamard()

static function matfaust::demo::hadamard::demo_fact_hadamard ( )

static

This demo hierarchically factorizes the Hadamard dictionary and then plots the results.

This essentially reproduces figure 2 from [1].

[1] Le Magoarou L. and Gribonval R., "Flexible multi-layer sparse approximations of matrices and applications", Journal of Selected Topics in Signal Processing, 2016.

norm_hadamard()

static function matfaust::demo::hadamard::norm_hadamard ( )

static

This demo makes some time comparison between the 2-norm of the Hadamard matrix and its Faust representation for different dimension of the Hadamard matrix.

speed_up_hadamard()

static function matfaust::demo::hadamard::speed_up_hadamard ( )

static

This demo makes some time comparison between (Hadamard matrix)-vector multiplication and (Hadamard factorisation i.e a FAuST)-vector multiplication for different dimension of the Hadamard matrix.

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

• hadamard.m