science is more than an inspiration

  1. 3 1 month ago
  2. Reinforcement learning

    The basic reinforcement learning model consists of: a set of environment states ; a set of actions ; rules of transitioning between states; rules that determine the scalar immediate reward of a transition; and rules that describe what the agent observes. The rules are often stochastic. The observation typically involves the scalar immediate reward associated with the last transition. In many works, the agent is also assumed to observe the current environmental state, in which case we talk about full observability, whereas in the opposing case we talk about partial observability. Sometimes the set of actions available to the agent is restricted (e.g., you cannot spend more money than what you possess). A reinforcement learning agent interacts with its environment in discrete time steps. At each time , the agent receives an observation , which typically includes the reward . It then chooses an action  from the set of actions available, which is subsequently sent to the environment. The environment moves to a new state  and the reward associated with the transition  is determined. The goal of a reinforcement learning agent is to collect as much reward as possible. The agent can choose any action as a function of the history and it can even randomize its action selection.

    2 2 months ago
  3. 2 months ago
  4. 2 months ago
  5. ucsdhealthsciences:

It’s alive!
Taken by Robert Ludlow of the University College London’s Institute of Neurology, this is a rare shot of a living brain, revealing the cerebral cortex of an epileptic patient during surgery. Oxygenated blood flushes bright red in a web of small arteries while larger veins, tucked in the sulci or crevices of the brain, carry away purplish, deoxygenated blood. Gray matter (so-dubbed because that’s its color after death) is pink with life.
The image won a 2012 Wellcome Trust award for photography.
752 3 months ago
  6. "I had a project that I wanted to do when I split up with the last man that I was with, but the pain went before I had time to put together the idea. In a way it was very frustrating - there just wasn’t enough pain and I couldn’t continue to do the work once it was gone. It would have been too superficial. I had even started to film myself, but I had to abandon it because suddenly I felt fine again. That time I dealt with the break-up in the most normal way, the way that other people do: I met someone else." — Sophie Calle, Exquisite Pain 3 months ago
  7. "He who understands Baboon would do more towards metaphysics than Locke." — Charles Darwin, Notebook M 1 5 months ago
  8. Sophie Calle, Monday from the chromatic diet
more photographs here : 
http://crowincrowndotcom.wordpress.com/2011/02/23/the-chromatic-diet-sophie-calle/ 5 months ago
  9. "To love without wanting to devour must surely be anorexic …"

    Jacques Derrida  

    http://www.e-flux.com/journal/an-interview-with-jacques-derrida-on-the-limits-of-digestion/

    5 months ago
  10. Our Biotech Future by Freeman Dyson

    I predict that the domestication of biotechnology will dominate our lives during the next fifty years at least as much as the domestication of computers has dominated our lives during the previous fifty years.

    1 6 months ago
  11. Our Biotech Future by Freeman Dyson

    6 months ago
  12. According to Damasio vmPFC has a key role in fear extinction 3 6 months ago
  13. My friend Jason Wu sent me this link recently.
http://thebeautifulbrain.com/2011/11/interview-gallery-greg-dunn/
dunn’s work is somewhere between Cajal and Hokusai with the contemporary materiality of Murakami’s gold plated wall pieces. 
This one is titles  hippocampus II. Soothing my eyes right after the thought-provoking memory lecture by Alison Adcock , MD, PhD 10 7 months ago
  14. 1 7 months ago
  15. "

    I became convinced - and I remain so even today - that one can achieve universality, not through religion, not through emotions or tradition, but through the sciences.

    Through a scientific way of thinking.

    But even with that, one can get nowhere without general ideas, points of departure. Scientific thought is only a means through which to realize my ideas, which are not of scientific origin. These ideas are born of intuition, some kind of vision. None of this was clear for me then but I worked instinctively in this direction

    " Iannis Xenakis, in 
    Balint Varga, “Conversations with Iannis Xenakis” 7 months ago