[#45942] win32ole and excel — Martin Stannard <martin@...>

Hi,

19 messages 2002/08/01

[#45948] "gets" blocking process not thread (in Windows only) — Matt Pattison <mfp@...>

The problem with my program is that (in Windows) gets seems to block the entire

13 messages 2002/08/01

[#46030] IO.readlines is slow ? — "Shashank Date" <ADATE@...>

I really like the convenience of doing:

18 messages 2002/08/02

[#46072] How to Load Script from a C Extension? — William Djaja Tjokroaminata <billtj@...>

Hi,

20 messages 2002/08/02

[#46107] embed or swig? — ptkwt@...1.aracnet.com (Phil Tomson)

I'm working a C++ project for a contract I'm doing. Originally, the

21 messages 2002/08/03

[#46128] Assoc Class (Hash Pairs) — Tom Sawyer <transami@...>

i've been thinking about posting this as an RCR.

28 messages 2002/08/03

[#46136] Should this work? — "Hal E. Fulton" <hal9000@...>

Should multiple assignment work for the

17 messages 2002/08/03

[#46192] Detecting when an instance variable is created/set — Harry Ohlsen <harryo@...>

Imagine we have a class like ...

22 messages 2002/08/04
[#46198] Re: Detecting when an instance variable is created/set — Tom Sawyer <transami@...> 2002/08/04

On Sun, 2002-08-04 at 06:03, Harry Ohlsen wrote:

[#46207] Re: Detecting when an instance variable is created/set — Harry Ohlsen <harryo@...> 2002/08/04

> > Can I write a method (of class Object or Kernel, perhaps) that will be

[#46226] Re: Detecting when an instance variable is created/set — Massimiliano Mirra <list@...> 2002/08/04

On Sun, Aug 04, 2002 at 10:32:44PM +0900, Harry Ohlsen wrote:

[#46264] Dynamic creation of classes and methods — Tomasz Wegrzanowski <taw@...>

I want to create classes and methods on fly.

11 messages 2002/08/05

[#46341] More questions on automation from na誰ve Windows user. — Chris Gehlker <gehlker@...>

Hi all,

15 messages 2002/08/05

[#46356] Coding challenge (on Ruby Garden) — David Alan Black <dblack@...>

Hello --

47 messages 2002/08/06

[#46357] Compiling Ruby to Native Code? — web2ed@... (Edward Wilson)

Having looked at OCaml, after following a post to this group, one

20 messages 2002/08/06

[#46426] Is There an Inverse of 'rb_define_method'? — William Djaja Tjokroaminata <billtj@...>

Hi,

15 messages 2002/08/06

[#46442] COM on Unix? — Chris Gehlker <gehlker@...>

As part of my crusade to make Ruby an automation language I read up a little

12 messages 2002/08/06

[#46443] Dup and Clone — "Justin Johnson" <justinj@...>

Could anyone kindly point out the difference between 'dup' and 'clone'?

17 messages 2002/08/06

[#46475] Named paramters again — "Justin Johnson" <justinj@...>

26 messages 2002/08/07
[#46534] Re: Named paramters again — "Gavin Sinclair" <gsinclair@...> 2002/08/07

[#46537] RE: Named paramters again — "Rich Kilmer" <rich@...> 2002/08/07

[#46550] GUI's and the Rouge, Part IV — Kero van Gelder <kero@...>

Funny, two savannah accounts for the same objective:

12 messages 2002/08/07

[#46565] Re: Unicode in Ruby now? — "Marcin 'Qrczak' Kowalczyk" <qrczak@...>

Wed, 7 Aug 2002 16:41:18 +0900, Curt Sampson <cjs@cynic.net> pisze:

12 messages 2002/08/07

[#46732] ambiguity between local variable assignment and writter method — Tom Sawyer <transami@...>

does anyone else find it annoying that local variable assignment is

56 messages 2002/08/09
[#46788] Re: ambiguity between local variable assignment and writter method — dblack@... 2002/08/10

Hi --

[#46791] Re: ambiguity between local variable assignment and writter method — Tom Sawyer <transami@...> 2002/08/10

On Fri, 2002-08-09 at 22:50, dblack@candle.superlink.net wrote:

[#46794] Re: ambiguity between local variable assignment and writter method — dblack@... 2002/08/10

Hi --

[#46734] Re: ambiguity between local variable assignment and writter method — Paul Brannan <pbrannan@...> 2002/08/09

On Sat, Aug 10, 2002 at 03:00:28AM +0900, Tom Sawyer wrote:

[#46737] Re: ambiguity between local variable assignment and writter method — Tom Sawyer <transami@...> 2002/08/09

On Fri, 2002-08-09 at 12:05, Paul Brannan wrote:

[#46739] Re: ambiguity between local variable assignment and writter method — Dave Thomas <Dave@...> 2002/08/09

Tom Sawyer <transami@transami.net> writes:

[#46741] Re: ambiguity between local variable assignment and writter method — GOTO Kentaro <gotoken@...> 2002/08/09

At Sat, 10 Aug 2002 03:44:45 +0900,

[#46748] Re: ambiguity between local variable assignment and writter method — Dave Thomas <Dave@...> 2002/08/09

GOTO Kentaro <gotoken@notwork.org> writes:

[#46753] Re: ambiguity between local variable assignment and writter method — Tom Sawyer <transami@...> 2002/08/09

On Fri, 2002-08-09 at 13:30, Dave Thomas wrote:

[#46841] Ah, I'm finally back from Japan ... — Dossy <dossy@...>

Not like anyone cares (or noticed) but my two week stay in Japan

12 messages 2002/08/10

[#46875] To be a Module, or not to be... — Holden Glova <dsafari@...>

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12 messages 2002/08/11

[#46911] Choosing ruby? — Rhymes <raims@...>

27 messages 2002/08/11

[#46957] Handling forms on database driven websites — Philip Mak <pmak@...>

Ever since I learned Perl, Ruby and MySQL, I've built several database

10 messages 2002/08/12

[#47000] Primary Key Hash help — "Chris Morris" <chrismo@...>

I have a huge data file with rows like this:

17 messages 2002/08/12

[#47134] Data_Make_Struct Considered Dangerous? — William Djaja Tjokroaminata <billtj@...>

Hi,

39 messages 2002/08/13

[#47212] Ruby Weekly News — Dave@...

21 messages 2002/08/14

[#47292] Thought question: Where does "new" come from? — "Hal E. Fulton" <hal9000@...>

I've been brooding again on the circularities

28 messages 2002/08/15
[#47342] Re: Thought question: Where does "new" come from? — "Hal E. Fulton" <hal9000@...> 2002/08/15

----- Original Message -----

[#47346] Re: Thought question: Where does "new" come from? — dblack@... 2002/08/15

Hi --

[#47365] Re: Thought question: Where does "new" come from? — "MikkelFJ" <mikkelfj-anti-spam@...> 2002/08/15

[#47369] Re: Thought question: Where does "new" come from? — dblack@... 2002/08/15

Hello --

[#47372] Re: Thought question: Where does "new" come from? — "MikkelFJ" <mikkelfj-anti-spam@...> 2002/08/15

[#47377] Re: Thought question: Where does "new" come from? — dblack@... 2002/08/16

Hi --

[#47344] eruby editor — "Kyle Wilson" <kyle.wilson@...>

Hello. I was wondering if anyone knows of a text editor which will

17 messages 2002/08/15

[#47440] Help with a segv in mod_ruby — Dave Thomas <Dave@...>

14 messages 2002/08/16

[#47461] How do I dup file descriptors in ruby? (diverting STDERR) — "Richard A. Ryan" <ryan@...>

Hello,

12 messages 2002/08/16

[#47464] IDE vs. editor — Holden Glova <dsafari@...>

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43 messages 2002/08/16

[#47547] Re: What Ruby needs. — "Shashank Date" <ADATE@...>

I do not have any problem with item 1) on your wish list as long as I don't

13 messages 2002/08/18

[#47559] Ruby Bot — Giuseppe Bilotta <bilotta78@...>

Hello,

14 messages 2002/08/18

[#47643] thread control — "Shashank Date" <ADATE@...>

I am trying to write a ruby script (Ruby 1.7.2 mswin32) which does the

21 messages 2002/08/20

[#47695] What makes a "good" Ruby extension? — Tim Hunter <cyclists@...>

So I'm reading the "Comparing Gui Toolkits" wiki page

14 messages 2002/08/20

[#47749] What New Language After Ruby? — William Djaja Tjokroaminata <billtj@...>

To Andrew Hunt and David Thomas:

74 messages 2002/08/21
[#47754] Re: What New Language After Ruby? — Wilkes Joiner <boognish23@...> 2002/08/21

Although activity seems to have died down, here are some links

[#47817] A Repeat: New Language After Ruby? — William Djaja Tjokroaminata <billtj@...>

Hi,

54 messages 2002/08/21
[#47820] RE: A Repeat: New Language After Ruby? — " JamesBritt" <james@...> 2002/08/21

[#47918] Win32 Scripting — Sean Middleditch <elanthis@...>

Hi,

13 messages 2002/08/22

[#48035] Why Ruby Uses Mark-and-Sweep GC? — William Djaja Tjokroaminata <billtj@...>

Hi,

39 messages 2002/08/23

[#48062] Ruby and Judy — Joseph McDonald <joe@...>

29 messages 2002/08/23

[#48082] Distributed Object Container — junderdown@... (Jason Underdown)

Is anyone out there in the Ruby community working on an object

23 messages 2002/08/24
[#48185] Re: Distributed Object Container — "Gavin Sinclair" <gsinclair@...> 2002/08/26

----- Original Message -----

[#48223] Ruby Based App Server — junderdown@... (Jason Underdown)

I posted a similar question a few days ago, but didn't get any

21 messages 2002/08/26

[#48264] Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby) — itsnewsforme@... (M S)

A big complaint from people looking into Ruby is that they don't see

36 messages 2002/08/27
[#48292] Re: Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby) — ts <decoux@...> 2002/08/27

>>>>> "M" == M S <itsnewsforme@yahoo.ca> writes:

[#48296] RE: Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby) — "Rich Kilmer" <rich@...> 2002/08/27

Actually, it would be nice to have them online, but not necessarily

[#48336] Re: Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby) — Massimiliano Mirra <list@...> 2002/08/27

On Tue, Aug 27, 2002 at 09:39:32PM +0900, Rich Kilmer wrote:

[#48358] RE: Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby) — "Rich Kilmer" <rich@...> 2002/08/28

http://kt-www.jaist.ac.jp/~ttate/ruby/ruby-dl.html

[#48362] RE: Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby) — Tom Sawyer <transami@...> 2002/08/28

On Tue, 2002-08-27 at 19:32, Rich Kilmer wrote:

[#48367] RE: Ruby developers: help push RPKG development and usage forward!!(it is like CPAN.pm, only Ruby) — "Rich Kilmer" <rich@...> 2002/08/28

You can just install it in another directory and then go to that

[#48369] RE: Ruby developers: help push RPKG development and usage forward!!(it is like CPAN.pm, only Ruby) — Tom Sawyer <transami@...> 2002/08/28

uh, sorry, how do i get 1.7.2? i tried anonymous cvs but it said NO. did

[#48371] RE: Ruby developers: help push RPKG development and usageforward!!(it is like CPAN.pm, only Ruby) — "Rich Kilmer" <rich@...> 2002/08/28

Nightly CVS snapshot:

[#48274] ANN: RJudy-0.1 - Judy Arrays for Ruby — Lyle Johnson <lyle@...>

All,

17 messages 2002/08/27

[#48477] Newbie converting brain from perl — William Pietri <william-news-383910@...>

20 messages 2002/08/28

[#48544] Best GC for Ruby? — "Justin Johnson" <justinj@...>

34 messages 2002/08/29

[#48573] FXRuby Threading Problem Solved? — Lyle Johnson <lyle@...>

All,

14 messages 2002/08/29

[#48584] suggestions to the Ruby community — stibbs <stibbs@...>

Hi, first i would like to state that i absolutely love Ruby more than any

85 messages 2002/08/29
[#48923] Re: suggestions to the Ruby community — <bbense+comp.lang.ruby.Sep.03.02@...> 2002/09/03

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[#48930] RE: suggestions to the Ruby community — " JamesBritt" <james@...> 2002/09/03

> >I was surprised just now to find that there is no absolute requirement

[#49017] Re: suggestions to the Ruby community — <bbense+comp.lang.ruby.Sep.04.02@...> 2002/09/04

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[#48657] ICFP Programming Contest — Alan Chen <alan@...>

http://icfpcontest.cse.ogi.edu/task.html

12 messages 2002/08/30

[#48705] Ruby aesthetics — vegai@...

Hello. I've been checking into python lately quite a lot, and I

192 messages 2002/08/31
[#49010] Re: Ruby aesthetics — "Hal E. Fulton" <hal9000@...> 2002/09/04

----- Original Message -----

[#49100] Re: Ruby aesthetics — Paul Prescod <paulp@...> 2002/09/05

On Thu, 5 Sep 2002, Hal E. Fulton wrote:

[#49112] Re: Ruby aesthetics — William Djaja Tjokroaminata <billtj@...> 2002/09/05

Hi,

[#49154] Re: Ruby aesthetics — Paul Prescod <paulp@...> 2002/09/05

On Thu, 5 Sep 2002, William Djaja Tjokroaminata wrote:

[#49161] Re: Ruby aesthetics — Christian Szegedy <szegedy@...> 2002/09/05

Paul Prescod wrote:

[#49173] Re: Ruby aesthetics — William Djaja Tjokroaminata <billtj@...> 2002/09/05

Hi,

[#49183] Re: Ruby aesthetics — <paul@...> 2002/09/05

On Fri, 6 Sep 2002, William Djaja Tjokroaminata wrote:

[#49189] Re: Ruby aesthetics — William Djaja Tjokroaminata <billtj@...> 2002/09/05

I think we have communicated very well; I agree with all you said. May I

[#49191] Re: Ruby aesthetics — <paul@...> 2002/09/05

On Fri, 6 Sep 2002, William Djaja Tjokroaminata wrote:

[#49272] Re: Ruby aesthetics — William Djaja Tjokroaminata <billtj@...> 2002/09/06

Hi Matz,

[#49293] Re: Ruby aesthetics — matz@... (Yukihiro Matsumoto) 2002/09/06

Hi,

[#49312] Re: Ruby aesthetics — <paul@...> 2002/09/06

On Sat, 7 Sep 2002, Yukihiro Matsumoto wrote:

[#49321] Re: Ruby aesthetics — dblack@... 2002/09/06

Hello --

Re: The whole 'Spades' thing: GA and cardbots

From: stephen.hill@... (Steve Hill)
Date: 2002-08-08 17:06:52 UTC
List: ruby-talk #46665
I have a reasonable amount of experience with GA's (PhD + some
industrial experience). This sounds interesting, but unfortunately I
don't have time to get involved at this point. However, I am more than
willing to give you a few pointers...

In this sort of case you might wish to consider a system known as a
genetic algorithm classifier. These are detailed quite well in David
Goldberg's book (he was the originator of the technique, or at least
the first implementor if IIRC).

There are 4 components to the system. The first is a set of rules,
expressed as
a set of trinary strings or arrays (true, false, widcard). Each
element refers to one particular condition (and these conditions are
hard-coded). Each rule is of the form condition -response, i.e. if the
condition holds , then perform response.

The second component is a blackboard, from which messages can be read
and responses posted. Usually messages are eith inputs from the
outside world (e.g. what cards have been played in this round), or
responses from rules. Generally, rules check the conditions on the
blackboard, and then post a response, although you may wish to have
rules which read the blackboard and cause actions (e.g. play K
spades).

The third component is a credit assignment algorithm (usually known as
the bucket brigade algorithm). Usually this is the hardest bit to get
to work. The idea here is to try and rank the ruleset in order of
their utility. This is usually done as follows:

Each rule has a strength (initially assigned). Each cycle (after any
card is played?) each rule is checked against the blackboard. Any rule
whose conditions are met is offered a chance to operate. Each of these
rules bids a portion of its utility for the right to operate. One or
more rules are then chosen to operate using a roulette wheel algorithm
based on their bid utility (so the rule "Elvis is alive and playing in
the Ring'O Bells tonight" is occasionally taken out for a test drive!
- and we end up in the pub!). These rules then pay their bid to
operate (their responses are activated). Note that generally, we apply
the tax in a progressive manner, so we tax rules based on their
specificity - the more specific they are (fewer wildcards), the harder
they are taxed, so we both prefer specific rules to general ones, and
we make the cost of them getting things wrong higher.

What do we do with the tax. Well, it gets split between the rules that
were applied in the previous cycle (possibly minus a decay constant).
But we also introduce extra credit into the system every time a
positive result happens (e.g. we win a trick). This means that the
rules that lead to good results tend to increase in utility over time,
and the the bad ones decrease in utility; with the result that a
natural hierarchy or rules develops from any given initial ruleset
(e.g. randomly chosen). Over time, this algorithm will reward the
rules which are intermediate steps to good outcomes, because the
rewards get passed back up the "bucket brigade" by the taxation
system. However, this algorithm can have problems in that it can be
difficult to reward the earlier events inlong chains of events.

The fourth and final component is the genetic algorithm. Every once in
a while (at a slower rate than the bucket brigade algorithm runs at),
we use a GA to update the ruleset, replacing a couple of the weakest
rules using a GA (maybe 5% of the ruleset each GA epoch).

Hope this helps (I have to go and catch a train home now!)

Steve




> OK, I have more useful things to be doing.
> 
> But sometimes I like to code just for fun.
> I can admit that here, right?  :)
> 
> What I had in mind for the Spades project
> was originally a genetic algorithm type 
> of thing.
> 
> That is, you define a genome based on some
> options for bidding and playing, and you
> play the members of the population against
> each other as they evolve.
> 
> I think it's interesting from a GA standpoint
> (disclaimer: I've never written a GA program).
> For one thing, it's not clear that a simple
> tournament would suffice to find optimal 
> strategies. You might just find a "local
> maximum" where the surviving members can beat
> the previous generation, but couldn't 
> necessarily have beaten some earlier 
> generation.
....
> 
> If someone wants to work on it, let me know (the
> GA or the cardbots). Otherwise, I'll probably just 
> implement 40% of each one and quit.  :)
> 
> Cheers,
> Hal

In This Thread