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conceptoriented

HN member
Joined
Fri, Oct 13, 2017, 7:29 PM UTC
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14 items

About conceptoriented

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Recent public activity

  1. comment
    Comment #24689440

    > the mapping absolutely isn’t mutable Assume f: X -> Y. We can now map x_1 to y_1 f(x_1)=y_1. And then change this same function by mapping x_1 to y_2: f(x_1)=y_2. Thus we can eas…

  2. comment
    Comment #24687750

    Function is a mapping between two sets (of values). This mapping between values is mutable although the values are not.

  3. comment
    Comment #24687344

    > Data never changes, but we have the possibility to create a new version of the data. Well, it depends on what you mean by data. To avoid ambiguity it is better to talk about data…

  4. comment
    Comment #22191145

    I agree that data modeling is underestimated but it hardly can be considered a solved problem. It is very hard because there are numerous alternative understandings and formal defs…

  5. comment
    Comment #22190632

    The concept-oriented model tries to overcome some problems of RM by relying on two constructs: sets and functions . In contrast, RM uses only sets. The idea is that data can be sto…

  6. story
  7. comment
    Comment #17466187

    > it is pretty much completely inappropriate for production since it uses no vector instructions nor GPU computation Many platforms do not have GPUs or special instructions, for ex…

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  9. comment
    Comment #15561079

    To test a machine learning algorithm, one can use "Fashion-MNIST": https://github.com/zalandoresearch/fashion-mnist "Fashion-MNIST is a dataset of Zalando's article images—consisti…

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  11. comment
    Comment #15543436

    > Coda is a next-generation spreadsheet designed to make Excel a thing of the past There are many projects aimed at making Excel "a thing of the past" but they focus on different n…

  12. comment
    Comment #15525900

    From this (and many other) tutorial it is not clear if tensors in tensorflow are true mathematical tensors (that is, having covariant and contravariant indices) or they are multidi…

  13. comment
    Comment #15521334

    The lifetime word limit is a too rigid constraint. There should be a possibility to acquire (or lose) the points you can later use for publishing your results. Then the "price" of …

  14. comment
    Comment #15469001

    HPAT looks pretty promising. I wonder how they managed to signficantly increase performance of shuffling and sorting which are known to be quite difficult operations in map-reduce.…