Archive for the ‘Papers and Posters on TMBL’ Category

The First TMBL Poster

July 14, 2010 1 comment

As I previously mentioned, I hope to use this blog to explain the ideas of TMBL but I’m aware that until then it would be useful to give some sources of information.  With that in mind, here’s my (recently finished) first TMBL poster…

Warning: The full size version is pretty big (3311 x 4681)

Poster Explaining TMBL For CEC 2010

My Poster To Help Me Explain TMBL to People At WCCI CEC 2010

I’m off to WCCI 2010 in Barcelona next week (hurrah) and this poster is to help me explain TMBL to folks there.

UPDATE: I’ve just had it printed at A0 and I’m pretty pleased with how it looks but I’ve spotted a mistake.  Kudos to anyone else that spots it (and it’s a small grammatical error so “it’s all nonsense mate” doesn’t count).


The First TMBL Paper

I hope to use this blog to explain many of the ideas behind TMBL.  Until then, I’m afraid you’ll have to read the paper I’ve written on it.  Here‘s the paper and here’s its abstract:

If a population of programs evolved not for a few hundred generations but for a few hundred thousand or more, could it generate more interesting behaviours and tackle more complex problems?

We begin to investigate this question by introducing Tweaking Mutation Behaviour Learning (TMBL), a form of evolutionary computation designed to meet this challenge.  Whereas Genetic Programming (GP) typically involves creating a large pool of initial solutions and then shuffling them (with crossover and mutation) over relatively few generations, TMBL focuses on the cumulative acquisition of small adaptive mutations over many generations.  In particular, we aim to reduce limits on long term fitness growth by encouraging tweaks: changes which affect behaviour without ruining the existing functionality. We use this notion to construct a standard representation for TMBL. We then experimentally compare TMBL against linear GP and tree-based GP and find that TMBL shows strong signs of being more conducive to the long term growth of fitness.

UPDATE: Here’s a picture:

The front of a riveting page-turner.