Evolutionary computation: Keith Downing at TEDxTrondheim

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  • เผยแพร่เมื่อ 12 ก.ย. 2024

ความคิดเห็น • 18

  • @danielf2651
    @danielf2651 6 ปีที่แล้ว +15

    Genetic algorithms are really interesting.

  • @JasperPeters
    @JasperPeters 8 ปีที่แล้ว

    Is this a yt issue or just this video, but the audo video desync is huge, and becoming bigger over time.

  • @cuiyungao3676
    @cuiyungao3676 9 ปีที่แล้ว +1

    biology really gives us some inspirations~!

  • @mikebellamy
    @mikebellamy 5 ปีที่แล้ว +4

    What Mr Downing is showing are examples of the classic Monte Carlo Methods
    used by engineers to optimise a design. Boeing use these for aerofoil
    design etc. And yes they are examples of the evolutionary "algorithm"
    ie CHANGE -> SELECT -> COPY -> REPEAT. However the
    assumption inherent that they demonstrate how natural selection could
    work in biological evolution is seriously flawed.
    1- The probability of a beneficial change is both unrealistically high
    and fixed
    2 - Given a beneficial change the probability of selection is very high
    approaching 1
    3 - The whole experiment is INTELLIGENTLY DESIGNED to for a specific
    PURPOSE. Nature has by definition no purpose which actually precludes the
    creation of information in the DNA which always has a purpose
    4 - Drawing a comparison between these simplified models and biological
    evolution ignores the second law of thermodynamics which demands any
    state of order may only be achieved at the cost of greater disorder
    in the surroundings. In all such simulations the cost in the
    surroundings is proportional to the number of cycles of the
    experiment. But the number of cycles required is NOT proportional to
    the size of the problem. It is an EXPONENTIAL FUNCTION of the size of
    the problem which becomes very very large for evolution by natural
    selection where there is very very low probability of beneficial
    change and low probability of selection.
    5 - Artificial selection in these models closely or directly uses the
    parameter that is being changed as the element upon which survival is
    based. However in biological evolution selection is at the phenotype
    performance level while the elements being changed are the DNA which
    will only in relatively few cases have any significant effect on
    phenotype performance. This is why probability of selection in nature
    is very low.
    6 - As may be demonstrated by the failure of the travelling salesman
    example artificial selection models suffer from logical traps when
    the complexity of the model increases. Demonstrating in the real world
    that assumed natural selection will encounter the same thing. For
    example the butterfly. A creature with two body plans of which only
    the second can lay eggs. There is no known way this could evolve from
    a creature with only one body plan since there is no advantage (selection value) in an
    incomplete second body plan.
    The problem here is evolution education does not encourage critical thinking. You are being told what to believe not how to think. I'll leave it there for now..

    • @maxinelyu7875
      @maxinelyu7875 4 ปีที่แล้ว +4

      It’s evolutionary computation not computational evolution

  • @TheConnor12500
    @TheConnor12500 6 ปีที่แล้ว

    Incredible talk

  • @jonhuh1684
    @jonhuh1684 8 ปีที่แล้ว

    thanks for the great talk!

  • @jagk4459
    @jagk4459 4 ปีที่แล้ว

    Thanks for sharing! =)

  • @VivekNair-vivekaxl
    @VivekNair-vivekaxl 8 ปีที่แล้ว +1

    Academy award for bio-inspired approach? Any references to that

  • @helixalgorithm3160
    @helixalgorithm3160 6 ปีที่แล้ว

    believe birds use the V-design for commuting in order to avoid incoming stool.

    • @mikebellamy
      @mikebellamy 5 ปีที่แล้ว +1

      Incorrect.. It is aerodynamically beneficial fly in the up-draft caused by the trailing vorticies just outboard of a lifting wing.

  • @clemasity
    @clemasity 9 ปีที่แล้ว +6

    #Pirula

  • @nucktard
    @nucktard 10 ปีที่แล้ว

    fascinating!

  • @tuckerhart510
    @tuckerhart510 2 ปีที่แล้ว +1

    Watching this post GPT-3 and hearing no computer has passed the Turing test is making me laugh so harc

    • @vladimirleon2487
      @vladimirleon2487 13 วันที่ผ่านมา

      I think the LLMs still haven't passed the tiring test for me, but they are getting damn close! It's insane.

  • @dinmohammadyosufi9766
    @dinmohammadyosufi9766 3 ปีที่แล้ว +1

    I am working on spider monkey optimization algorithm.

    • @hackercop
      @hackercop 3 ปีที่แล้ว

      I'm trying to build an AI for flappy bird using evolutional nerual networks.