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Viewing profile — deddy

deddy

HN member
Joined
Sat, Apr 15, 2017, 6:56 PM UTC
HN karma
67
Public activity
11 items

About deddy

Bits in space.

Recent public activity

  1. comment
    Comment #46285534

    There isn’t really much benefit to having compute on orbit unless you’re working on VERY specific applications that have such tight latency requirements where you need to process t…

  2. comment
    Comment #46234939

    It depends on what you're going for. Generally people really don't want collisions due to cascading effects, so they take the worst-case probability of collision found with boundin…

  3. comment
    Comment #46233496

    This is confusing terminology in the field, but you generally talk about the cross sectional area in the plane of the conjunction ( https://www.space-track.org/documents/SFS_Handbo…

  4. comment
    Comment #46233079

    Need to do a full read in more depth but it looks like they used a collision cross section of A=300 m^2, which is a little conservative but not insane given that the current Starli…

  5. comment
    Comment #42561296

    So other ways of combining greater numbers of microbatch gradients in an effective/consistent manner for performing an update is one area of potential future work. I think your ide…

  6. comment
    Comment #42561181

    > 1. Do you think this is a form of variance reduction or more a form of curriculum (focus first on the bulk, then on remaining errors)? I'd say generally more of a cirriculum (usi…

  7. comment
    Comment #42556245

    Great question! There are a few different aspects to this. With gradient agreement filtering having a greater number of batches (generally) increases the likelihood of finding anot…

  8. comment
    Comment #42555306

    Co-author here. Super excited to see this work posted on HN! Happy to answer questions.

  9. comment
    Comment #21298877

    F10.7 is the measured solar power flux at 10.7 cm wavelength. It is measured all over the world but primarily from Penticton observatory in Canada. The largest source of uncertaint…

  10. comment
  11. comment
    Comment #20271721

    Currently VC backed companies are barred from competing on SBIRs. There is legislation currently in the works to change that. But gov funding isn’t more common currently because yo…