Neural nets in Caml

Neural nets in Caml

[Vincent Leleu]

Hi All,

Has anyone implemented a neural network library in caml/ocaml ?

I am searching for a library which gives the user the ability to create
neuron objects, network objects, link them and perform simple propagation
task.

Thank you.

Vincent Leleu.

Computing Research Group
Anglia Polytechnic University
Phone +44 1245 493131 ext. 3416
E-mail vincent@parc.anglia.ac.uk

Re: Neural nets in Caml

[Andrew Conway]

In response to the request for neural network software in caml/ocaml:

I have some brief neural network routines in ocaml in my general
library which is available from:

   http://sequence-www.stanford.edu/~arc/publib.html

A trivial test function to show backpropagation on a neural network
with 2 input nodes, 2 nodes in a hidden layer, and one output node
(hence [|2;2;1|] argument to create) is:

let selftest () =
    let net = create [|2;2;1|] in
    let teachdataset = [|
        ([|1.0;1.0|],[|0.0|]);
        ([|1.0;0.0|],[|1.0|]);
        ([|0.0;1.0|],[|1.0|]);
        ([|0.0;0.0|],[|0.0|])
    |] in
    let testdataset = teachdataset in
    polyteachtest 5000 net teachdataset testdataset;
    net
;;

Warning: I don't actually use neural networks, so I haven't tested it all
that much. I had an application that I thought could use them, wrote
the library, and then abandoned it.

Warning: I think that generally neural networks are the wrong way to solve
a problem.

There are lots of other things in the library, most with a one line
comment :-(

Regards,

Andrew.

-----------------

J'ai un bibliotech "neural network" (et autres choses) en ocaml dans 
	
   http://sequence-www.stanford.edu/~arc/publib.html

Malheureusement, il n'y a pas beaucoup de documentation. Et presque
tout est en Anglais. 

Amities,

Andrew.