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View Code? Open in Web Editor NEWGeneralized approximage message passing with built-in parameter estimation
License: MIT License
Generalized approximage message passing with built-in parameter estimation
License: MIT License
Author: Shuai Huang, The Johns Hopkins University. Email: [email protected] Last change: 09/03/2017 Change log: v1.0 (SH) - First release (10/29/2016) v2.0 (SH) - Second release (09/07/2017) ---------------------------------------------------------------- This package contains source code for performing sparse signal recovery via PE-GAMP described in the following papers: @INPROCEEDINGS{PEGAMP17, author={S. Huang and T. D. Tran}, booktitle={2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, title={Sparse Signal Recovery via Generalized Approximate Message Passing with Built-in Parameter Estimation}, year={2017}, month={Sept}, } @ARTICLE{PEGAMP_long17, author = {{Huang}, S. and {Tran}, T.~D.}, title = "{Sparse Signal Recovery using Generalized Approximate Message Passing with Built-in Parameter Estimation}", journal = {ArXiv e-prints}, archivePrefix = "arXiv", eprint = {1606.00901}, year = 2016, month = jun, } If you use this code and find it helpful, please cite the above paper. Thanks:) ---------------------------------------------------------------- Remember to set the parameters accordingly for your specific experiments, the code is written in MATLAB: 1) The folder "BGM" contains the functions to perform sparse signal recovery using the proposed PE-GAMP. The input channel is assumed to be Bernoulli-Gaussian mixture (BGM) channel, the output channel is assumed to be additive white Gaussian noise (AWGN) channel. a) "BGM_PE_GAMP.m" is the main function used to perform sum-product PE-GAMP. b) "bgm_input_update.m" is the function used to estimate the input channel parameters. c) "awgn_output_update.m" is the function used to estimate the output channel parameters using sum-product message passing. 2) The folder "BEM" corresponds to the Bernoulli-Exponential mixture (BEM) input channel and the AWGN output channel. a) "BEM_PE_GAMP.m" is the main function used to perform sum-product PE-GAMP. b) "bem_input_update.m" is the function used to estimate the input channel parameters. 3) The folder "LP" corresponds to the Laplace (LP) input channel and the AWGN output channel. a) "SUM_LP_PE_GAMP.m" is the main function used to perform sum-product PE-GAMP. b) "MAX_LP_PE_GAMP.m" is the main function used to perform max-product PE-GAMP. c) "sum_lp_input_update.m" is the function used to estimate the input channel parameters. 4) The folder "main" contains some functions from the GAMP MATLAB package. 5) The folder "test_images_256" contains several image dataset. 6) "XXX_noiseless_signal_recovery.m" contains examples to perform noiseless recovery experiments. 7) "XXX_image_recovery.m" contains examples to perform image recovery experiments using PE-GAMP.
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