| --- Log opened Wed Oct 24 00:00:52 2007 |
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| 02:49 | <@Reiver> | From the writer of XKCD: http://img.moonbuggy.org/what-now-bitches/ |
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| 02:49 | <@Reiver> | From the writer of XKCD: http://img.moonbuggy.org/what-now-bitches/ |
| 02:59 | <@Reiver> | (How much is that, idly?) |
| 03:11 | <@Vornicus> | 0.002c |
| 03:11 | <@Vornicus> | er, $0.002 |
| 03:11 | <@Vornicus> | the second term is -1, the third is 1. |
| 03:18 | <@Reiver> | ...ahahaha |
| 03:18 | <@Reiver> | I foresee his being charged 2 cents. |
| 03:19 | <@Reiver> | So he /paid/ them two cents. :p |
| 03:23 | <@Vornicus> | no, two tenths of a cent |
| 03:34 | <@Reiver> | ... |
| 03:34 | <@Reiver> | ...o-kay den. |
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| 06:09 | <@McMartin> | Okay! |
| 06:09 | | * McMartin is now officially insane. |
| 06:09 | <@jerith> | ? |
| 06:09 | | * McMartin has written most of a Java disassembler in OCaml. |
| 06:10 | <@McMartin> | I'm missing about three opcodes. |
| 06:10 | <@jerith> | Do you have a note from a doctor? |
| 06:12 | <@McMartin> | And, I'm not certified. |
| 06:13 | <@McMartin> | But the existence of this project may mean I qualify as certifiable. |
| 06:13 | | * jerith nods. |
| 06:14 | <@McMartin> | That said, most of the instruction decoder involved doing a copy-paste of a web page's human-readable contents and then doing a couple of search-and-replaces. |
| 06:16 | <@McMartin> | I think I shall now make tea, and judge the last entry in the IFComp. |
| 06:16 | <@McMartin> | And then perhaps revisit a couple of other entries I didn't finish, since the authors kindly provided walkthroughs. |
| 06:17 | <@jerith> | Cool. I should get out of bed and hope I remembered to turn the geyser back on again last night. |
| 06:48 | | * jerith makes tea. |
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| 14:30 | <@ToxicFrog> | Heh. From the prof's notes on this course: whole > ?parts |
| 14:42 | <@ToxicFrog> | The Tierra Hyper-Parasite is pretty sweet. |
| 14:42 | <@gnolam> | The wha? |
| 14:43 | <@ToxicFrog> | Tierra was an evolutionary programming experiment, a population of breeding and mutating programs. |
| 14:43 | <@ToxicFrog> | The "parasite" was a program that showed up with no copy() routine - it would find another program's copy() and use that to replicate itself. |
| 14:44 | <@ToxicFrog> | The hyper-parasite, however, has something that looks like a standard copy(), but actually copies the HP regardless of who invokes it; thus, any parasite attempting to use it ends up breeding copies of the HP instead. |
| 14:51 | <@gnolam> | Heh. Cool. |
| 14:53 | <@ToxicFrog> | And now- midterm |
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| 19:08 | | * MyCatSchemes wonders what strings to recognise as synonyms for "yes". |
| 19:08 | < MyCatSchemes> | Currently, recognising "y", "yes", "true" and "1" in any capitalisation. |
| 19:10 | <@ToxicFrog> | Just take the ssh route~ |
| 19:26 | | * MyCatSchemes pokes sshd_config(5) |
| 19:26 | < MyCatSchemes> | You mean ignoring everything that isn't exactly "yes" or "no"? |
| 19:28 | <@AnnoDomini> | MyCatSchemes: Why exactly are you making the luser's job easier? I know my designs frequently offer only one, true way of stating "yes" or "no". :. |
| 19:28 | <@AnnoDomini> | :p |
| 19:30 | <@ToxicFrog> | MyCatSchemes: yep. |
| 19:30 | <@ToxicFrog> | Blah blah blah mrfl? y |
| 19:30 | <@ToxicFrog> | Please enter "yes" or "no": yes |
| 19:36 | < MyCatSchemes> | Well, it's, uh, about five lines of code to be nice to the user instead of cruel. |
| 19:37 | < MyCatSchemes> | OTOH I'm being lazy and interpreting *anything* which doesn't match one of my "yes" cases as "no" by default. Heheheh. |
| 19:37 | | * AnnoDomini nods. |
| 19:38 | <@AnnoDomini> | Nice. |
| 19:38 | <@AnnoDomini> | Sort of like my bot interprets most NaNs as 0. :p |
| 19:43 | < MyCatSchemes> | AnnoDomini: was that "Nice" sarcastic? Enunciation doesn't travel well over RFC1459. |
| 19:43 | <@AnnoDomini> | I was merely admiring your cruelty. |
| 19:44 | < MyCatSchemes> | Why thank you. =D |
| 20:06 | <@ToxicFrog> | MyCatSchemes: yeah, see, I don't consider that "nice" |
| 20:07 | < MyCatSchemes> | ToxicFrog: True, it's evil, but I'm finding it hard to care. |
| 20:07 | < MyCatSchemes> | "Don't do that." Heheheh. |
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| 20:23 | | * AnnoDomini ponders how to use component-like things in functional VHDL design. |
| 20:24 | <@AnnoDomini> | I know how to use them in structural design, but so far functional design holds many mysteries. |
| 20:25 | <@AnnoDomini> | What I need are functions or the like, so I can reuse code. It's kinda necessary for designing registers. |
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| 23:40 | <@ToxicFrog> | Man, memoize makes a mess of the stack. |
| 23:40 | <@ToxicFrog> | stack traceback: |
| 23:40 | <@ToxicFrog> | ./chromosomes/ipd.lua:30: in function 'f' |
| 23:40 | <@ToxicFrog> | /usr/lib/lua/5.1/util/init.lua:18: in function </usr/lib/lua/5.1/util/init.lua:13> |
| 23:40 | <@ToxicFrog> | (tail call): ? |
| 23:40 | <@ToxicFrog> | (tail call): ? |
| 23:40 | <@ToxicFrog> | ./chromosomes/ipd.lua:91: in function 'f' |
| 23:43 | <@McMartin> | http://www.discourse.net/archives/2007/10/worlds_toughest_no_parking_sign.html |
| 23:46 | <@ToxicFrog> | Heh. |
| 23:46 | <@McMartin> | I'm wondering how they manage the incredibly daring daylight robbery on cue. |
| 23:46 | | * ToxicFrog throttles Iterated Prisoner's Dilemma |
| 23:47 | <@McMartin> | Doesn't everything basically end up losing to Tit For Tat? |
| 23:47 | <@ToxicFrog> | Everything simple does. |
| 23:47 | <@ToxicFrog> | GAs have in the past come up with rather more complicated strategies that outperform it handily. |
| 23:48 | <@ToxicFrog> | The problem I'm having is that we were told to use round-robin duels between everything in the population as a fitness evaluator, but this doesn't work so well. |
| 23:49 | <@ToxicFrog> | Since, if the fitness goes down, it doesn't necessarily mean that the strategies being generated are worse - but that the overall quality of the population is going up, so the points are more evenly distributed. |
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| 23:50 | <@ToxicFrog> | (I note that against TFT, the best you can manage is a 1-iteration lead; by "outperform it handily" I mean they do better than TFT does when tested against a wide range of non-TFT strategies) |
| 23:51 | <@McMartin> | Right. TFT doesn't exploit the weak. |
| 23:52 | <@ToxicFrog> | Exactly. |
| 23:54 | <@ToxicFrog> | Interesting to see how the program gets faster the longer it runs. |
| --- Log closed Thu Oct 25 00:00:59 2007 |