HackerTrans
TopNewTrendsCommentsPastAskShowJobs

danbst

no profile record

Submissions

Show HN: Did you know you can multiply matrices without multiplication?

6 points·by danbst·قبل 3 سنوات·3 comments

Robomojo.io – Pop Culture Reimagined by Artificial Intelligence

robomojo.io
2 points·by danbst·قبل 4 سنوات·0 comments

I was stuck on a side project for 5 years – how I finished it (2020)

cassandraxia.com
185 points·by danbst·قبل 5 سنوات·45 comments

Dramatica: A Theory of Story [pdf]

dramatica.com
39 points·by danbst·قبل 5 سنوات·5 comments

Fiction.Tools

fiction.tools
2 points·by danbst·قبل 5 سنوات·0 comments

A German Easter Egg in Python Turtle

github.com
1 points·by danbst·قبل 5 سنوات·1 comments

Why Mathematics is Boring (2007) [pdf]

math.ucr.edu
86 points·by danbst·قبل 5 سنوات·124 comments

comments

danbst
·قبل 3 سنوات·discuss
this is a disaster. There are rumors that part of infrastructure is destroyed.

There are 26 million Kyivstar users. Now they all are without mobile for an indefinite time. I'm one of them

2FA via SMS doesn't work. Our biggest bank was partner for Kyivstar, and now it's 2FA doesn't work either.
danbst
·قبل 3 سنوات·discuss
in llama.cpp inference runs on CPU, using AVX-2 optimizations. You don't need GPU at all

It runs on my 2015 ThinkPad!
danbst
·قبل 3 سنوات·discuss
to make this complete, the "Silpo" market chain created unique design for many years already. Here is full list, together with ideas behind each design

https://silpo.ua/about/dyzainerski-supermarkety
danbst
·قبل 3 سنوات·discuss
The idea is to store all matrix weights for neural model in log space, and never leave it. Maybe create a new activation function which doesn't leave log space.

You can check the code, I don't just replace multiplication, I perform addition (with tricks) in log space
danbst
·قبل 4 سنوات·discuss
remove word egg
danbst
·قبل 4 سنوات·discuss
There exists `sd` which does the same! Maybe details differ. See intro in https://ianthehenry.com/posts/a-cozy-nest-for-your-scripts/
danbst
·قبل 4 سنوات·discuss
There are several layers of propaganda, and you point to only one of them.

1) The propaganda for West is that "power balance" shit story. US citizens are distant enough to believe this is rational PoV. (it is not)

2) The propaganda for russians is that Ukraine is a failed state, has no legitimate govt, makes undercover nukes and nazis use ukrainian people as hostages. (all of this is lie)

3) The propaganda for Ukraine is that Russians and Ukrainians are literally "brothers", more "brothers" than ukrainians and poles. Everyone speaking russian language is part of Russia. (clear manipulation)

We Ukrainians don't like this propaganda and don't want live under Putin's (or any other non-democratic) regime. If US (and Europe) feels we can help them achieve their goals, we are fine with that. Because it aligns with our national goals -- make Russia weak, or even make it disappear from global map.
danbst
·قبل 5 سنوات·discuss
Partly related, the No Bullshit Guide to Linear Algebra has a concept map as a first page, which looks really stunning. Author definitely had spent time mindmapping stuff before writing.

https://minireference.com/miniref/lib/tpl/miniref/dist/image...
danbst
·قبل 5 سنوات·discuss
Both are correct from math POV, but they differ in how "integer division" works.

Python floors `7 // -5` to -2, C rounds `7 / (-5)` to -1.
danbst
·قبل 5 سنوات·discuss
This is explanation from author

http://fastcompression.blogspot.com/2011/05/lz4-explained.ht...
danbst
·قبل 5 سنوات·discuss
Correct link: https://github.com/python/cpython/blob/3.10/Lib/turtle.py#L3...
danbst
·قبل 5 سنوات·discuss
Brief history of inline freestyle rollerblading in Ukraine. It had declined as well, but head a peak much later than US.

2003-2008 -- this was rise period of skating. Primarily in Kyiv, but also Luhansk, Donetsk, Kharkiv, Odessa

2006 -- Sebastian Lafarge creates SEBA brand and Seba FR1 boot. For some reason it becomes #1 choice for "pro" skaters in Ukraine. Maybe because it is well suited for freestyle lifestyle? Anyway, more and more white-black boots had appeared.

I think French and Russian existing roller cultures greatly influenced the whole Ukrainian movement.

2008-2013 -- "boom" of inline skating in Ukraine. During this time originated several different skater subgroups:

* yamakasi -- as a tribute to movie "Yamakasi", where tracers gather together to watch sunrise from high point. Skaters chatted which hill of Kyiv they plan to watch sunrise, skated whole night, gathered in one place and watched the event. Those meetings were sometimes up to 100 people.

* Wizards (catchskating) -- basically "freeze tag" on inline skates. It turned out to be a good team sport, and more accessible than inline hockey. Common teams were 2 catchers VS 5 runners and 3 VS 7. There were compettions, Luhansk and Donetsk teams were best there. I think this game originated from Russia

* Season opening -- yearly spring event when weather becomes warm enough for skating, and people from Ukraine, Belarus and Russia gather together in Kyiv for grand mob skating. I think record goes to 1000 skaters of all ages.

* Night riders -- freeskating empty streets at night was common and even had weekly schedules. Bikers sometimes participated too

* Downhill -- Kyiv has many hills, so people quickly learn the fun of downhill. We had teams, night downhill trainings, maps of good and bad DH, and so on.

* all kinds of tricksters -- slalom, slides, jumps. This was copied from russian and french FSK tournaments. (at time Kyiv had very few skateparks)

2014+ -- war happened and we lost Russia, Luhansk and Donetsk teams. This probably was the most disrupting event for whole movement. Ban of Vkontakte had cut many contacts and communities.