Path: csiph.com!usenet.pasdenom.info!news.albasani.net!news.stack.nl!newsfeed.xs4all.nl!newsfeed3.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path: <python-python-list@m.gmane.org>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.002
X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'algorithm': 0.03; 'interpreter.': 0.07; 'indeed,': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'itself.': 0.11; 'suggest': 0.11; 'fitness': 0.13; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'silly': 0.16; 'subject:programmer': 0.16; 'string': 0.17; 'wrote:': 0.17; 'basically': 0.17; 'url:edu': 0.18; 'fairly': 0.21; 'amounts': 0.22; 'seems': 0.23; 'idea': 0.24; 'header:In-Reply-To:1': 0.25; 'header:User-Agent:1': 0.26; 'header:X-Complaints-To:1': 0.28; 'url:software': 0.29; 'function': 0.30; 'running': 0.32; 'could': 0.32; 'getting': 0.33; 'to:addr:python-list': 0.33; 'program,': 0.34; 'self': 0.34; 'done': 0.34; 'richard': 0.35; 'there': 0.35; 'received:org': 0.36; 'except': 0.36; 'but': 0.36; 'anything': 0.36; 'quite': 0.37; 'rather': 0.37; 'subject:: ': 0.38; 'to:addr:python.org': 0.39; 'step': 0.39; 'subject:-': 0.40; 'header:Received:5': 0.40; 'think': 0.40; 'real': 0.61; 'between': 0.63; 'computers': 0.69; 'received:109': 0.74; '..........': 0.84; 'gap': 0.84
X-Injected-Via-Gmane: http://gmane.org/
To: python-list@python.org
From: Robin Becker <robin@reportlab.com>
Subject: Re: FYI: AI-programmer
Date: Mon, 25 Feb 2013 12:35:18 +0000
References: <4CACF5BFEFC24638A0D8007921722FB8@dev.null> <CAPTjJmq4NNoR9wcq9KSjWOd_bu8gdQ8iuwNVGK-qy1niOJUh_A@mail.gmail.com> <CALwzidnmi+08qGOdSK+=TE5N_38uJ91g468piQ3L2eu5Dzf4kw@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-Gmane-NNTP-Posting-Host: 109.174.168.73
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130215 Thunderbird/17.0.3
In-Reply-To: <CALwzidnmi+08qGOdSK+=TE5N_38uJ91g468piQ3L2eu5Dzf4kw@mail.gmail.com>
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <http://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.2500.1361795733.2939.python-list@python.org>
Lines: 24
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1361795733 news.xs4all.nl 6976 [2001:888:2000:d::a6]:56132
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:39887

On 22/02/2013 19:21, Ian Kelly wrote:
.........
>
> Indeed, it seems to me that this is basically Richard Dawkins' weasel
> program, with the addition of a transformation step in the fitness
> function that amounts to running the string through a Brainfuck
> interpreter.  There is a rather large gap between this and getting
> computers to generate programs that do anything interesting.
......
this has been done before over and over

eg

http://www.ooblick.com/software/evolve/
http://hampshire.edu/lspector/push.html

I think if the OP could get his brainf*ck algorithm to produce a self printing 
program in brainf*ck that would be quite amusing, but for real advances I 
suggest he makes it generate itself. His fitness is fairly silly since it has no 
idea of fitness except success; minimizing the cpu/memory/program length etc etc 
are all additional measures that could be added/used.
-- 
Robin Becker