Live data from Hacker News

Viewing profile — pixcavator

pixcavator

HN member
Joined
Tue, Feb 27, 2007, 8:54 PM UTC
HN karma
396
Public activity
345 items

About pixcavator

My name is Peter Saveliev. I am a mathematician working in image and data analysis. The site I run is called Computer Vision and Math (http://inperc.com). It contains over 800 articles with 2100 illustrations. Feel free to contact me: last name @inperc.com.

My relations with HN are complicated and are described here: http://inperc.com/wiki/index.php?title=Hacker_News.

http://www.hackernewsers.com/users/pixcavator.html

http://hnofficehours.com/profile/pixcavator/

Recent public activity

  1. comment
    Comment #3325749

    >"economists asserting the difference between modeling human behavior vs. the behavior of physical objects" Is it really that different? Try to attach an object to several springs …

  2. comment
    Comment #3245361

    And Amazon.

  3. comment
    Comment #3211064

    Start big: "scientific research needs to be disrupted!" (a trendy word) How? At the bottom: "government agencies funding research should require that those submitting papers must p…

  4. comment
  5. comment
    Comment #3188329

    >>Half a mil to learn about Poetry Writing. Sorry, but that's just silly. Except it's payed for by your taxes. Who is silly here?

  6. comment
    Comment #3187957

    >>This is largely a topological problem: If you're surrounded by mountains... Topological or topographical? It's kinda both in your example.

  7. comment
    Comment #3183326

    They can't give course credit or award degrees. There was a relevant quote posted recently by "tokenadult": “the diligence of public teachers is more or less corrupted by the circu…

  8. comment
    Comment #3180124

    But it's OK for doctors, lawyers and their clients to do that?

  9. comment
    Comment #3179998

    I find this kind of reports very encouraging. I think the future of education is professors becoming free agents in a free market. Really, why can a lawyer set up his own firm or a…

  10. comment
    Comment #3173422

    >>My cofounder, Ryan, has spent the past couple of years helping developers at Columbia learn how to apply their theoretical computer science skills to actually programming. He’s t…

  11. comment
    Comment #3171950

    >>if it was funded by someone else (e.g. the public) then my view is that everyone who contributed to funding that research should have the ability to access and use the results. I…

  12. story
  13. comment
    Comment #3134530

    Non profit != no charge

  14. comment
    Comment #3133053

    Why would it be more impressive? Because paying customers vote with their money. Money is a better validation than "you're great!".

  15. comment
    Comment #3132825

    I'd be much more impressed it these (or at least a part of them) were paying customers.

  16. comment
    Comment #3120567

    I'd take a good book over this any day.

  17. comment
    Comment #3103555

    >>a list of people's heights isn't going to follow the distribution. Try centimeters.

  18. comment
    Comment #3098605

    Here's a relevant image: http://inperc.com/wiki/index.php?title=A_common_view_of_digi... .

  19. comment
    Comment #3097062

    It's actualy the latter, followed by the former -- on paper.

  20. comment
    Comment #3097035

    Here’s a “Russian” problem: find the largest projection on the plane of a box with sides a, b, c.

  21. comment
    Comment #3063647

    "European"? Are you ashamed of your nationality?

  22. comment
    Comment #3008655

    Anything that requires extra work from students is no-go.

  23. comment
    Comment #2996077

    Two pieces are rotated, that doesn't make the whole thing symmetric.

  24. comment
    Comment #2996070

    I understand that they are "equivalent" in a certain sense, but "symmetric"?

  25. comment
    Comment #2993407

    Did it ever occur to you that maybe you were able to handle PCA, CG, portfolio theory, etc because "Hefferon was my textbook for 2 full semesters"?