David MacKay
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C code

  • The old bigback Bayesian neural network simulator. source code for bigback5. information (not up to date). I wrote bigback to develop and test the ideas of my phd, for research purposes only. I used it to make my winning entry in the prediction competition. It can implement Bayesian methods for regression nets and classifiers but is a research tool only.
    Commercial users are asked to send a donation to support my research if they use this software.
    Anyone interested in non-linear data modelling with neural networks is encouraged to look into Gaussian processes.
  • Bigback has been used to create several Materials Modelling Algorithms. See Materials Algorithms Project website then go to Neural networks section
  • macopt: A conjugate gradient optimizer that I wrote, which only makes use of gradient information and doesn't need a routine that returns the function value. More information about macopt.
  • Free Energy Code tar. (For decoding and cryptanalysis. Please contact me before taking this code.)
  • Software for simulation of MN codes and GL codes (almost the best error correcting codes in the world!) tar. (c) David MacKay and Radford Neal.
    see also Radford Neal's software
  • A couple of codes for use with the above MN/GL software can be found here: tar. Or you can get individual files here directory. There are three files for each code: A, Cn and G. A is the parity check matrix, and G is the generator matrix. See also Encyclopedia of sparse graph codes.

Perl code

I have written tons of perl programs, which you can find here. All supplied without warranty. (Get perl here)

The Inference Group is supported by the Gatsby Foundation
and by a partnership award from IBM Zurich Research Laboratory
David J.C. MacKay
Site last modified Wed Nov 16 18:07:29 GMT 2005