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yding

243 karma · joined March 13, 2014

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yding··on Show HN: AI companions stack – create and host your own AI companions
Good job Yoko!
yding··on Ask HN: I am interested in reading about techniques HFT firms use
Great to see Nigito. Brian, if you're reading this you still owe me a dollar from our bet.
yding··on Ask HN: I am interested in reading about techniques HFT firms use
Max Dama used to have a blog. Don't know if it's still up or archived anywhere.

The main aspects are:

On the trading side, HFT is mainly about what's called "market microstructure." These are relatively simple things that are quirks or features of individual markets. Things that most people don't care about, but can make a large difference in HFT profits include when an order comes in, who gets to trade with it first? How are orders routed between different exchanges? What are the popular types of algorithms that people who place large orders use?

On the tech side:

The main is minimizing tick to trade latency. This includes using techniques as basic as colocation at the exchange's (very expensive) data centers and as involved as designing custom ASICs and anything in between like bypassing the normal network stack.

Unfortunately the real state of the art things are all closely held trade secrets, but I'd start reading the exchange data specs to start getting an understanding of the microstructure side, and you can build some of your own experiments to see how quickly you can go from tick to trade. Can you get it sub 1ms? sub 100 us? 10us?

yding··on A response to the git.centos.org changes
Unpopular opinion: I see their point.

When Larry Ellison created Oracle Linux, he said this explicitly: given RH's then model, Oracle can take RedHat's work for free and sell it for money.

yding··on Apple co-founder sells Carmel Valley ranch, will become nature preserve
Saves the state money in upkeep, with the tradeoff being that the private nonprofit can set its own rules on access.
yding··on Reddit CEO Spez AMA Overview
Like many apps, Apollo had (a small number of) paid users and (a large number of ) free users. And because they were competing with the Reddit app (which is free) their pricing model was only $10/year.

Reddit's changes would mean that they would have to cut off all of their free users entirely, and 10x the cost of the paid users. Also, they would have to lose money on all of their existing yearly paid paid users until renewal time.

yding··on Synthesis Tutor – Math tutor for children
Cool! Would love to beta test with my 10 year old.
yding··on Pinecone raises $100M Series B
Congrats to the Pinecone team!
yding··on Show HN: AI Playground by Vercel Labs
Helps when your boss is a prolific coder himself.
yding··on Show HN: AI Playground by Vercel Labs
You can spend hundreds of thousands trying to implement just SSR and still not get it working. (trust me)

For what Vercel is, it's a steal.

yding··on Show HN: AI Playground by Vercel Labs
OK technically not Vercel, but https://next-auth.js.org/
yding··on Show HN: AI Playground by Vercel Labs
khalidx listen to swyx. If you need help, let me know.
yding··on Show HN: AI Playground by Vercel Labs
Yes, although we haven't added authorization yet.

This is the simplest I could get it: still uses the OpenAI npm package and doesn't need streaming:

https://github.com/yisding/gpt-edge-test

If you want to try streaming you can take a look at the readpanda repo.

yding··on Show HN: AI Playground by Vercel Labs
Yup! Not just Vercel. The entire industry is on the GB-s billing model, which doesn't make sense if you're just waiting for requests to come back and forth.
yding··on NaturalSpeech 2: Zero-shot speech and singing synthesizers
Very cool! Hopefully we can all use these in the future for commercial and open source projects.
yding··on Show HN: AI Playground by Vercel Labs
Great! Vercel edge functions are my preferred deployment for OpenAI calls now.
yding··on Prompt injection: what’s the worst that can happen?
It gets worse with eval.
yding··on LangChain Announces 10M Seed Round
Congratulations Harrison, Ankush, and team.

I first heard about Langchain at the Scale hackathon when I think it was Colin who was like “half the people are using Langchain” and I was like whatchain?

Amazing trajectory!

yding··on Launch HN: Play.ht (YC W23) – Generate and clone voices from 20 seconds of audio
Very cool! Amazing work.
yding··on Seattle could become the first city to ban caste discrimination
I have lots of Indian and Indian American friends and coworkers. Not once have they suggested that we hire someone on the basis of caste or not hire someone on the basis of caste.

I'm not saying caste discrimination doesn't exist, but let's not paint 1.4 billion people with the same brush.

yding··on Perplexity.ai prompt leakage
Thanks! Makes sense!

It was a long day, but one of the most fruitful ones I've had in a long while.

yding··on Perplexity.ai prompt leakage
I literally learned prompt engineering from you for the first time two days ago (thank you btw! it was great!)

But didn't you mention that there may be some ways to isolate the user input, using spacing and asterisks and such?

I agree though that leaking a prompt or two by itself doesn't really matter. What's probably a bigger concern is security/DoS type attacks, especially if we build more complicated systems with context/memory.

Maybe Scale will also hire the world's first "prompt security engineer."

yding··on Monumental (if correct) advance in number theory posted to ArXiv by Yitang Zhang
It's a reference to Brendt Christensen.
yding··on Tell HN: A disabled 40-year-old person founded a startup and makes a living
Great job! Really inspiring.
yding··on [dead]
I saw this list of founding engineer positions, at companies currently with 2-3 people, and it looks like the offers are all 2% in equity or less. Is this now the standard for the 3rd of 4th hire? It seems low to me, but haven't looked in this space recently.
yding··on In defence of garlic in a jar
Unless you're eating it raw, there's no problem with minced garlic or prepeeled garlic. Yes, it has slightly less flavor, but you can just add more of it if you want.
yding··on Ask HN: I shut down my company, now I need a job
Good luck! Shutting down a startup, especially one that you're passionate about, is never easy. Hope you take the time for yourself to mentally/emotionally recharge.
yding··on Does the Tank Have a Future?
If you're talking about DJI or equivalents they only have 30 minutes or so of flight time and can carry at most one bomb at a time. They can be useful in guerrilla situations but firepower wise it's not even in the same league as a tank with 40-60 cannon rounds and several thousand machine gun rounds.
yding··on Does the Tank Have a Future?
Drones or no drones, I'd rather be sitting behind 35cm of hardened steel than out in the open with maybe 2cm of body armor max.
yding··on Show HN: Build Your Own Vaccine Passport
This was inspired by an Andrew Yang tweet a few weeks ago. There has to be a better way to show people that we've been vaccinated without carrying around 5 inch piece of paper. Completely open source and easy to self host for maximum privacy.
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