954,525 Members — Technology Publication meets Social Media
Username:
Password:
Lost login information?
Have something to say? Contribute New Article Reply to this Article

Statistical Learning with Python?

Hi guys,

I'm trying to learn the principles of artificial intelligence. I just finished coding up a belief net and a corresponding EM algorithm that learns the CPTs for latent nodes using training data (if you're unfamiliar with the lingo, you're probably going :eek: right now). While the program (written in Python, of course) works and is pretty quick, it is also pretty unstructured - I had difficulty figuring out how to best represent probability computations, so parts of the algorithm look kind of awkward.

Are there any good, complete AI/machine learning packages in Python - are there any which incorporate Bayesian belief nets? Any which represent the belief net, the update procedure, and EM algorithms to find the parameters at latent nodes? How about BioPython? Since I'm a computational biology guy, that would be right up my alley, but I'm not sure how complete the BioPython package is. How about Orange - how easily does it lend itself to bioinformatics-type applications? Does anyone here have any experience with this stuff? If not, I guess I'll start plumbing it myself, but I'd appreciate it if anyone could save me some time :cheesy:.

Here's a link to BioPython's homepage, if anyone is interested in learning:

BioPython

And here is Orange:

Orange

Thanks!

G-Do
Junior Poster
147 posts since Jun 2005
Reputation Points: 41
Solved Threads: 31
 

Thanks G-do for informing us over the interesting medical work you are doing! Orange sounds like Python based data mining module, things that should be explored. Slovenia is just like Austria, very nice with much history and great people.

bumsfeld
Nearly a Posting Virtuoso
1,445 posts since Jul 2005
Reputation Points: 404
Solved Threads: 184
 

I took a look at BioPython, very nice work they have done!

Ene Uran
Posting Virtuoso
1,723 posts since Aug 2005
Reputation Points: 625
Solved Threads: 213
 

BioPython does simplify things a good deal, doesn't it? :cheesy: If I get a free moment, I might do a BioPython/Orange code snippet with some basic biology background, the goal of which would be to describe how to code up a simple research program.

G-Do
Junior Poster
147 posts since Jun 2005
Reputation Points: 41
Solved Threads: 31
 

I will be waiting for that code snippet! Sounds all very interesting to me too!

vegaseat
DaniWeb's Hypocrite
Moderator
5,989 posts since Oct 2004
Reputation Points: 1,345
Solved Threads: 1,417
 

Have a look at the scikit-learn . While it does not have any code for belief nets, it has many state of the art algorithms that can be used for machine learning with Python.

Gael Varoquaux
Newbie Poster
1 post since Nov 2010
Reputation Points: 10
Solved Threads: 1
 

This question has already been solved

Post: Markdown Syntax: Formatting Help
You