In lieu of serious posting, which will resume in the new year, a few links:
- Several videos of David Blackwell, over at The Inherent Uncertainty
- The (in)famous Witsenhausen counterexample in decentralized control theory now has its own Wikipedia entry (and I think I know who is behind it).
- Emmanuel Abbe, guest-blogging at Combinatorics and More, presents his perspective on Erdal Arikan’s polar codes. Much of what he says makes me think of Terence Tao‘s work on structure and randomness in “large” combinatorial objects.
- Markov decision processes make a surprising appearance in a paper on subexponential lower bounds for certain randomized pivot rules for the simplex algorithm.
- Computation and Control: a new blog by Jerome Le Ny.
- And, last but not least, exorcising Laplace’s demon.