Hacker News: gfd

New comment by gfd in "Air quality monitors: paying more does not get you more accuracy"

gfd — Thu, 08 Jun 2023 02:46:40 +0000

Airgradient's kit has CO2!

New comment by gfd in "Deepmind Alphadev: Faster sorting algorithms discovered using deep RL"

gfd — Wed, 07 Jun 2023 17:49:45 +0000

Can someone summarize how it achieves "provable correctness"?

New comment by gfd in "Bard is getting better at logic and reasoning"

gfd — Wed, 07 Jun 2023 17:37:43 +0000

It's weird how much worse google is at code generation when AlphaCode was already so much stronger than gpt4 today at code generation a year ago:

https://www.deepmind.com/blog/competitive-programming-with-a...

https://codeforces.com/blog/entry/99566

(alphacode achieved a codeforces rating of ~1300. i think gpt4 is at 392)

New comment by gfd in "Instant flood fill with HTML Canvas"

gfd — Tue, 23 May 2023 22:28:18 +0000

i used opencv.js a few years ago and it was fast enough to process videos frame by frame for stuff way more complicated than just floodfill. See https://docs.opencv.org/4.7.0/d5/d10/tutorial_js_root.html

New comment by gfd in "Do people meet IRL in the Bay Area?"

gfd — Wed, 26 Apr 2023 12:38:04 +0000

nsfw if you have hn as referrer. copy and paste instead

New comment by gfd in "Ask HN: Have you taken anti-aging supplements that reduced biological age?"

gfd — Mon, 17 Apr 2023 11:46:39 +0000

For skin, retinoids seem to work well. You can order one called Differin w/o prescription

New comment by gfd in "On a great interview question"

gfd — Thu, 13 Apr 2023 08:28:38 +0000

>But I don't think they'll end up being the engineer that builds Google's competition to ChatGPT

OpenAI has a lot of strong competition programmers. Search IOI or ICPC in their team update blogs:

https://openai.com/blog/team-update

https://openai.com/blog/team-update-august

https://openai.com/blog/team-update-january

New comment by gfd in "Ask HN: What lesser-known accessories do you use with your computer?"

gfd — Mon, 03 Apr 2023 20:36:22 +0000

Monitor arms freed up a ton of desk space.

Wireless noise cancelling headphones helped with concentration.

UPS saved me a couple times from losing work during power outages.

New comment by gfd in "Ask HN: What's new in theoretical CS these days?"

gfd — Mon, 27 Mar 2023 14:58:07 +0000

Maximum Flow and Minimum-Cost Flow in Almost-Linear Time

https://news.ycombinator.com/item?id=31675015

https://arxiv.org/abs/2203.00671

New comment by gfd in "Goodbye to Google Code Jam"

gfd — Sat, 25 Mar 2023 01:40:15 +0000

Topcoder will also be having their final TCO this year: https://codeforces.com/blog/entry/113201

Google Code Jam and TCO were the two biggest onsite competitive programming event that's not targeted at students.

This is a huge blow to the sport.

New comment by gfd in "OpenAI tech gives Microsoft's Bing a boost in search battle with Google"

gfd — Fri, 24 Mar 2023 19:00:15 +0000

Google's business model is entirely based off the fact that search is great for signaling intent, and that is great for selling ads.

A personalized AI assistant goes WAY beyond that. Whenever you talk to it, it can go into salesman mode to con you into buying shit you don't need.

Surely the economics will work out to still provide "free" searches.

New comment by gfd in "Mathematicians discover shape that can tile a wall and never repeat"

gfd — Thu, 23 Mar 2023 14:02:34 +0000

Sounds like a pretty tough job due to the lack of pattern. Either you have to follow a template or you run the risk of randomly tiling something that can't actually be extended further.

New comment by gfd in "ChatGPT's Chess Elo is 1400"

gfd — Fri, 17 Mar 2023 18:25:17 +0000

According to https://chess.stackexchange.com/questions/2550/what-are-the-... median rating is 1148 (252,989 Players). So it's beating half of humanity at a mind sport and it wasn't even specifically trained for it.

New comment by gfd in "A growing number of scientists are convinced the future influences the past"

gfd — Fri, 17 Mar 2023 16:38:56 +0000

I used to believe that the world is lazily loaded. That means the first moment I see something (e.g., a world map) is the point where all the past history to consistently explain the observation gets "locked in".

New comment by gfd in "Keep your AI claims in check"

gfd — Tue, 28 Feb 2023 00:49:46 +0000

As someone who don't understand linear separability (at least in the way you're using it), can you explain?

New comment by gfd in "The Camera-Shy Hoodie"

gfd — Mon, 27 Feb 2023 18:37:03 +0000

I remember my old android phone would pick up IR as a purpleish color: https://qph.cf2.quoracdn.net/main-qimg-d8d68a82c1ec4b4975b8e...

I wonder if it's possible to make it bright enough to blind regular (non IR filtered) cameras too?

New comment by gfd in "Ask HN: What are these strange random strings spamming my blog?"

gfd — Tue, 21 Feb 2023 18:42:41 +0000

A good chunk of them were from small blogs or mom and pop shops. They don't always have one click unsubscribe, especially the ones in other languages (I think requiring unsubscribe link is an american law?).

New comment by gfd in "Ask HN: What are these strange random strings spamming my blog?"

gfd — Mon, 20 Feb 2023 19:41:06 +0000

awful thing about these kinds of attacks is that your inbox never really recovers. these unsuspecting services/blogs will keep sending you emails forever thinking you actually wanted to sign up.

New comment by gfd in "Ask HN: Which air quality monitor to buy?"

gfd — Mon, 20 Feb 2023 16:52:37 +0000

At that budget, you can just get an air purifier with built in monitoring.

Though usually those only detect particulate matter since air purifiers don't really help with CO2, etc.

New comment by gfd in "My class required AI"

gfd — Mon, 20 Feb 2023 15:59:39 +0000

Does anyone feel like the style of searching they learned from that era are actively being punished nowadays? I used to get pretty good results just by just listing out keywords with quotes where needed. Nowadays I feel like google gives better results if I use natural language, which is a lot more verbose to type out.