smuser | 2 months ago | on: Ask HN: Share your personal website
https://smuser.space — portfolio and projects site
smuser's comments
smuser | 1 year ago | on: AlphaCodium outperforms direct prompting of OpenAI's o1 on coding problems
I really like using aider (https://aider.chat) and heavily leverage the /ask command to have a quick chat on intent and context before prompting it for the code I need.
smuser | 2 years ago | on: ConvNetJS Deep Q Learning Demo (2013)
My understanding (not an expert) is a lot of problem domains have very sparse / infrequent rewards - imagine if the only reward you gave a minecraft agent was when it mined a diamond, it would take a lot of gameplay for it to randomly do that and get a reward. So researchers spend time tuning the reward space (oh you mined some dirt, here's a tiny reward. Oh you mined rock, a greater reward, etc) but it's kind of akin to hand crafted feature detection from the pre-neural network days. The Q* mystery is did OpenAI 'solve' reward modelling the same way neural networks solved feature detection.
smuser | 6 years ago | on: XB-1's wings are officially closed out
I believe it's "eXperimental Boom - 1" but I doubt they mind the coincidence.
smuser | 6 years ago | on: Grab your crayons, it’s coloring time
Yeah this is a great idea for kids stuck inside! On a related note my friend made free coloring pages for two of her artworks: https://www.gopaintthewild.com/coloringpages
smuser | 6 years ago | on: Tesla researcher is 'excited' about new battery tech developed by the Army
Probably worth considering the efficiency of converting that stored energy to useful work. Average ICE efficiency is ~20% yielding effective storage of ~2600 Wh/kg.
Roughly an "order of magnitude" more density.
EDIT: Hadn't refreshed the page since lunch. Many have made this point already. Apologies haha
smuser | 7 years ago | on: SpaceX Gets FCC Approval to Sell Wireless High-Speed Home Internet from Space
Yupp relevant bit from there:
Internet traffic via a geostationary satellite has a minimum theoretical round-trip latency of at least 477 ms (between user and ground gateway), but in practice, current satellites have latencies of 600 ms or more. Starlink satellites would orbit at 1⁄30 to 1⁄105 of the height of geostationary orbits, and thus offer more practical Earth-to-sat latencies of around 25 to 35 ms, comparable to existing cable and fiber networks[51] (although transmitting a signal halfway around the globe takes at least 67 ms at the speed of light).
smuser | 7 years ago | on: Building Fast Interpreters in Rust
I think he means have a different thread for each case or a subset of cases instead of having any explicit switch statement.
smuser | 7 years ago | on: SpaceX Launches 19th Rocket in a Year, a Company Record
This is essentially what Spire is doing. Their weather processing facility is here in Boulder.
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