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Viewing profile — rcheu

rcheu

HN member
Joined
Mon, Jan 19, 2015, 8:06 AM UTC
HN karma
459
Public activity
79 items

About rcheu

Currently research engineer at OpenAI

Previously ML lead at Quora

Recent public activity

  1. comment
    Comment #37279871

    There’s not much need for turnover, plenty of companies publish quite a bit on how their systems work. You can look for recsys papers from your favorite company if you want. The Ne…

  2. comment
    Comment #36768140

    The 30 days thing is likely from GDPR requirements. You cannot keep user data longer than that after they request deletion.

  3. comment
  4. comment
    Comment #30033287

    It's pretty easy to do almost no coding at larger companies as a more senior engineer and become quite rusty. It sounds like he was interviewing for a position which he's actually …

  5. comment
    Comment #28909367

    400 GB/s is insane memory bandwidth. I think a m5.24xlarge for instance has something around 250 GB/s (hard to find exact number). Curious if anyone knows more details about how th…

  6. comment
    Comment #27849731

    SF is actually getting really fast internet now. All the new developments we looked at had gigabit internet at ~$80/month with multiple competing providers. It's getting to older a…

  7. comment
    Comment #26617390

    Some of the people I enjoy listening to (almost all violin): https://www.instagram.com/nancyzhou_violin/ https://www.instagram.com/joshuabrownviolinist/ https://www.instagram.com/k…

  8. comment
    Comment #26311900

    You can just buy it on Amazon right now, they're actually not too hard to find. You can also find it in store at original MSRP.

  9. comment
    Comment #26309410

    Your thinking rate might be fixed (or more likely, decreasing with time), but one thing you can do, which is not mentioned here, is become more efficient. This means looking for wa…

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    Comment #26278232

    Obviously high supply of animators is the main reason, but I wonder if part of it is that pirating/illegal streaming sites are extremely common for anime. All of the people I know …

  12. comment
    Comment #25922920

    I use http://intonia.com/index.shtml for this purpose. It's available on Android/iOS as well. It's not free, but I think the functionality is a bit better than this. It handles fas…

  13. comment
    Comment #25031420

    This is the shortest common supersequence problem ( https://en.wikipedia.org/wiki/Shortest_common_supersequence_... ). It's NP-hard if you include repeating numbers; there's no sim…

  14. comment
    Comment #24415396

    What is going on here? Why have none of the commenters read the article? Perhaps because it's phrased as a question and people didn't realize it's a link? Anyways, this matches my …

  15. comment
    Comment #22499781

    This is not actually happening, and I'm sad to see how long this misinformation persists on HackerNews... Not only not technically feasible, it'd also get out in the numerous lawsu…

  16. comment
    Comment #21951463

    I like One Medical a lot, I hope they find some way to be profitable. Their doctors are far less rushed than any other GP doctor office I've been to, and their app is well done too…

  17. comment
    Comment #19794449

    I work as an ML engineer, some thoughts: The train/test data being imbalanced in the same way does give the model an advantage, but I don't think that making the test set 50% would…

  18. comment
    Comment #19296715

    I recently restarted classical music education, and have found it makes it much harder to listen to music and concentrate on my software engineering. It used to be okay if the musi…

  19. comment
    Comment #18993322

    This is really impressive, I didn't expect starcraft to be played this well by a machine learning based AI. I'm excited to read the paper when it comes out! That said, I'm not sure…

  20. comment
    Comment #18985582

    I don’t think that’s a viable strategy in today’s world. The kids I knew growing up that were pushed hard by their parents are doing much better (and happier) than those that were …

  21. comment
    Comment #18972633

    I’m pretty sure they’ll limit the APM (or do something more fine grained since not all APM is equivalent). It’s already well known that bots can outmicro humans in certain aspects …

  22. comment
    Comment #18515170

    The fact that this dumb “Google/FB listens to you in the background and uses it to serve ads” myth is still around even on HackerNews is insane to me. Do you all really think that …

  23. comment
    Comment #18333625

    > Members of the American Trends Panel were recruited from several large, national landline and cellphone RDD surveys conducted in English and Spanish. At the end of each survey, r…

  24. comment
    Comment #17423012

    We’re told not to talk about any details (even high level) of this sort by legal because anything we put on the internet could be used against the company in court even if it seems…

  25. comment
    Comment #17422705

    Yeah, I’m willing to bet the people that think this is easy and clear are not trying to implement it. I have not met anyone working at a large internet company (these companies hav…