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Medical Free energy principle

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  1. Aug 20, 2014 #1
  2. jcsd
  3. Aug 20, 2014 #2

    Ryan_m_b

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    Staff: Mentor

  4. Aug 20, 2014 #3
    indeed, it is not easy to understand this approach, which seem to derive from the concept of thermodynamics :
    https://en.wikipedia.org/wiki/Thermodynamic_free_energy

    Thank for the article

    Patrick
     
  5. Aug 25, 2014 #4

    atyy

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    In classical physics, dynamical equations can be derived from a principle of least action.

    We can ask the inverse question, which dynamical equations mininimize an action? This question has been addressed by Tonti (and others).
    http://www.dic.univ.trieste.it/perspage/tonti/DEPOSITO/Nonlinear.pdf
    http://www.dic.univ.trieste.it/perspage/tonti/DEPOSITO/Rassias.pdf
    http://www.dic.univ.trieste.it/perspage/tonti/DEPOSITO/Tonti-russi.pdf

    Here is some related work on energy functions for "self-organizing maps".
    http://www.ncbi.nlm.nih.gov/pubmed/1606243
     
    Last edited: Aug 25, 2014
  6. Aug 25, 2014 #5

    atyy

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    Perhaps closer to the technicalities of the article, many forms of approximate inference can be stated using variational language.

    http://www.merl.com/publications/docs/TR2001-22.pdf
    Understanding Belief Propagation and its Generalizations
    Jonathan S. Yedidia, William T. Freeman, and Yair Weiss

    http://www.cs.princeton.edu/courses/archive/spr06/cos598C/papers/YedidaFreemanWeiss2004.pdf
    Constructing Free Energy Approximations and Generalized Belief Propagation Algorithms
    Jonathan S. Yedidia, William T. Freeman, and Yair Weiss

    https://www.eecs.berkeley.edu/~wainwrig/Papers/WaiJor08_FTML.pdf
    Graphical Models, Exponential Families, and Variational Inference
    Martin J. Wainwright and Michael I. Jordan

    http://www.cs.berkeley.edu/~jordan/papers/variational-intro.pdf
    An Introduction to Variational Methods for Graphical Models
    Michael Jordan, Zoubin Ghahramani, Tomi Jaakkola, Lawrence Saul
     
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