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Entries from April 2019
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NaN Gates and Flip FLOPS (30 Apr at 23:41)
I was hoping to have a few things to write about in this month, but the only thing I finished was this video for SIGBOVIK, right at the beginning:

NaN Gates and Flip FLOPS
NaN Gates and Flip FLOPS


There is also the paper which has some merits but I submitted that before actually finishing the project, so I think the video is the definitive version. Either way this one is really aimed at trolling computer scientists, and so may be impenetrable if you don't have the background; sorry about that!

Allergies and various things have got me down recently but it's also getting nice out, which should provide a burst of energy!! This weekend is the Marathon in Pittsburgh, which I intend to run. No costume plans but sometimes I get last minute inspiration / compulsion. Feel free to taunt me with your ideas.
Categories:  hacks  video  sigbovik (3 comments — 2 weeks ago)   [ comment ]
Entries from March 2019
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CHESSBOVIK (31 Mar at 21:49)
Well, here we are on the eve of SIGBOVIK 2019. I'm in the midst of a long day of video-making for one of my projects, but I can get 2 for the price of 5 by posting now about four of my papers. This year I've been on a chess kick, which I think I've successfully gotten out of my system by writing all these (previous posts alluded to there being five, but one of them didn't really go anywhere and/or just became part of the other(s)). They are sort of intertwined:

Survival in chessland is about how to stay alive if you are being a chesspiece to the death

Color- and piece-blind chess is about, among other things, playing chess without being able to tell what the pieces are (only where they are)

Elo World, a framework for benchmarking weak chess engines is about exploring the full spectrum of computer chess play

CVE-2018-90017117 #KingMe is just a short joke, but based on a true story


My last paper is on a different (maybe even weirder?) topic, and I'm putting together a video for it now, so I should be uploading that tomorrow some time. It's been a bit rough going, though, since I replaced my computer a few months ago and forgot that I hadn't actually set stuff up for this kind of work; I'm experiencing small problems like custom key commands aren't set, and bigger problems like audio drivers acting crazy. Looks like I will be able to finish with some vacation time, at least.


Speaking of vacation, this month we also went to Belize, which was pretty cool. The highlight for me was swimming/scrambling 1km into a cave ("Actun Tunichil Muknal") to access an approximately 1000 year-old Mayan site where they performed human sacrifices; it's remarkable because almost all of the artifacts are still in situ, including a number of calcified human skeletons. Was pretty wild. I got some good running done, found some New Haven-style pizza (!?), and wrote papers about chess (?!).
Categories:  sigbovik  hacks (3 comments — almost 3 weeks ago)   [ comment ]
Entries from February 2019
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Oops, February is short (28 Feb at 23:47)
Wow, the end of February really snuck up on me! I wrote this on the morning of March 1 and backdated it. :(

Aside from some uninteresting work travel and a bit more progress on Pac Tom, the main notable thing from February was work on my SIGBOVIK papers. It is now possible to submit, so you can too! Thank you for your suggestions for my chess paper (see previous post); it's not too late for more ideas there. I also have one non-chess paper, which turned out to be pretty fun. For that I spent a solid chunk of the weekend manually routing this bad boy:

Design rules check pass!
Design rules check pass!


It may end up to be too hard to solder, but isn't it aesthetically pleasing?
(5 comments — almost 3 weeks ago)   [ comment ]
Entries from January 2019
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All you gotta do is recognize the problem and then solve it (31 Jan at 22:39)
OK, so I think I have five SIGBOVIK papers about chess, which is pretty over the top, but at least I can get it all out of my system. If you like, you can help me out: Today I'm on the lookout for a collection of easy to describe algorithms for playing chess. Some constraints: They should be basically symmetric when playing as white or black (so not like, "move pieces to the 1st rank" but "move pieces as far from their starting squares as possible"). They do not need to be good at chess, and in some ways it's better if they're not, although it's not good if they just get stuck in loops like moving the same piece back and forth. They have to be efficient enough to compute a move in a few seconds. Most importantly, it should have a one or two-sentence description which pretty much communicates the whole idea without important ambiguity. Alpha-beta and that kind of thing I already know about; novel approaches are most desirable here.

Aside from the bracing cold, which you can just read about in the news, I'm nearly done with a game called Hollow Knight. It's really good, definitely the kind of artful indie game I was yearning for when I deleted Battlefield V shortly after writing last month's post, and I super recommend it. And also in quick turnarounds from last month's dreary post news, a day later or so I figured out the thing that had me stuck on that machine learning problem (it was basically just NaN poisoning) and now the only problem I have left is that machine learning isn't magic. But I guess things are looking up on multiple counts!

That is all!
(5 comments — almost 4 months ago)   [ comment ]
Entries from December 2018
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EOY 2018 (31 Dec 2018 at 18:13)
2018 is finally over! And good riddance. It was a fine year for me, but globally (as you know), pretty garbage. Let's do better in 2019.

I've been on a bit of a chess kick this year, I think because I started watching chess videos on youtube when on the treadmill or eating lunch (I like agadmator's channel best). Not so much playing—although I can now at least often beat Stockfish level 5—more like puzzles (lichess has a really cool feature where it automatically discovers puzzles in people's games and can give you an endless stream of them) and appreciating wizardly play. But I spent a bunch of free time this month doing some chess programming stuff for fun, and wrote two SIGBOVIK papers for next year on the topic, with a third on the way.

The third one is a (weird/useless as usual) machine learning idea, which I spent the last few days on, and it's reminding me how frustrating this kind of work can be. The problem is that you can have a reasonable idea, implement it correctly, spend a bunch of effort on performance tuning, wait hours or days for it to do its thing, and then it just doesn't work well, and all you've really got to look at are a bunch of numbers. I'm sure it's possible to be better at the iterations that follow, but I find it easy to get stuck in a not-very-fun rut at that point. I felt a lot like that working on followups for my NES "AI" stuff earlier this year (although I do at least have some nice progress there that I hope I can figure out how to make into a video). It can be very satisfying when it works, and of course machine learning can often be made to work, but I get a similar kind of satisfaction out of projects that are more likely to succeed without this last step that seems kind of magical or like luck; stuff like ABC or even just making video games. So, reminder to myself to choose projects that are more fun, especially if they are useless anyway! People will like, pay you big bucks to toil away tweaking machine learning models.

Speaking of video games, I also spent way too much time on Battlefield V this month. That series' multiplayer system really expertly manipulates the reward circuitry of my brain, and although I previously banned myself from multiplayer in this kind of game, I was rather in the mood for a good FPS game due to a persistent post-Thanksgiving cold, and after some long/stressful days at work, but I couldn't find any alternatives. Seems like nobody even really makes single-player shooters any more (perhaps noticing how commercially successful the contentless wastelands of games like PUBG are? Let the customers do the work!). So I unwisely lifted the ban. 100 hours later I've exhausted the fun achievements and all that seems to be left is "kill 999 nazis using the gun that you hate, while crouching at an objective point, only shooting them below the knee, in the same life" stuff to unlock a new color of trigger guard on the gun that you hate, so it's not that motivating. So hopefully I will rid myself of this game soon. (The game is good, especially the graphics, but it's extremely buggy and honestly feels like a step backwards from Battlefield 3 in lots of ways.) There are lots of good artful indie games in my queue that are much more enriching to play, anyway!

OK, that is all. Happy New Year!
(10 comments — 4 months ago)   [ comment ]
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