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Ask HN: What are you working on?

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261–270 of 560 posts

Re: Ask HN: What are you working on?

#261
KeyDB: a multi-threaded fork of Redis. https://github.com/JohnSully/KeyDB

It seemed crazy to me Redis was still single threaded in 2019. Sometimes the rationale was one thread was enough to saturate a machine (it is not). Other times it was justified by the fact that you could create a local cluster - but I thought that was needlessly complex. Eventually I went ahead and just did it.

The project has since expanded to include Active Replication and a bunch of other new features.

Re: Ask HN: What are you working on?

#264
post #238

An Android client to control mpv (media player) remotely. It is actually both the server (written in python) and client. I started it because I didn't want to get up to control the movie playing on my laptop, and it has turned into a fun experiment in UX and network security. https://github.com/mcastorina/mpv-remote-app

I did a similar thing to control VLC remotely but using Node and React. Not as comprehensive as yours but does everything the kids need to watch a show without touching the PC.

https://github.com/screaminghawk/web-vlc

Re: Ask HN: What are you working on?

#265
Working on research for my thesis, which will be wrapped up by years end. The current project focuses on improving sample efficiency in deep reinforcement learning. I am researching how best to merge the options framework with the adaptability of meta-reinforcement learning.

In my spare time I write and research algorithmic trading strategies. I’ve been sticking to the traditional techniques, with a small toe into statistics for modeling.

With whatever time is left, I’ve been learning rust and have enjoyed it quite a bit so far.

Re: Ask HN: What are you working on?

#266

On exercism.io, learning rust and mentoring people learning JavaScript. Both sides are a lot of fun! Please join in if you can on mentoring... there's a pretty big back-log.

That's awesome! Is there any open source parts of the project we could contribute to, as well?

Thanks! Their contribute[1] page has a list of things, including opening issues on their github[2] page.

[1] https://exercism.io/contribute [2] https://github.com/exercism/exercism

Re: Ask HN: What are you working on?

#267
I've been working on starting a DIY garage that's operated as a consumer-owned co-op. The goal is to have a place where you can go take a class in car care or maintenance, or just rent a lift and have a place to wrench on your car and recycle fluids. I'm hoping that eventually we'll be able to open it in Austin or Atlanta: https://cornergarage.coop/

Re: Ask HN: What are you working on?

#268

Indoor vegetable and fish farm, i.e. aquaponics, in a fully circular production system. We are building our pilot installation right now. Additionally we got two government grants: one to set it up monitored with sensors, and a production management system, for future automation, traceability and transparency for the food chain; the other to start taking in food waste and converting into fish food via insect larvae,…

This sounds super cool!

I’m currently involved in some work with interconnected mesh networks and have some contacts in this field. Feel free to message me :D

Re: Ask HN: What are you working on?

#269
https://www.deltatrail.io

Working on a infrastructure change tracking service called Deltatrail.io. It tracks changes both automatically (via API, Jenkins, AWS Cloudtrail, etc) and also manually (via Slack, etc). It really helps us when trying to debug outages or issues that arise. Most come from changes that have been made/deployed.

Re: Ask HN: What are you working on?

#270
We have optimized neural ODEs, neural SDEs, neural DDEs, and neural DAEs quite a bit in Julia, and have some experimental results with neural jump SDEs and neural PDEs. But we can really do more with the neural PDEs, especially neural PDEs with constraints (i.e. partial differential-algebraic equations) and neural stochastic PDEs (SPDEs). It's all working with DiffEqFlux.jl (you can see a blog post of experiments here: http://www.stochasticlifestyle.com/neural-jump-sdes-jump-dif...), and it works with GPUs, but we really need to make a few of the overloads like mapslices have better GPU kernels to really capture the neural SPDE applications well.

I'm also spending quite a bit of time looking into the ability for these neural differential equations to understand phase space. What exactly do they learn, and why? Can you predict beforehand how well you can learn the equations directly from data? Of course, this is intertwined with the previous part, because to understand how well you can auto-learn neural SPDEs you need the ability to quickly solve neural SPDEs, along with all of the implicit solvers and GPU support.

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