Table of contents

In recent years, we used lattice QCD to calculate some quantities that were unknown or poorly known. They are the q dependence of the form factor in semileptonic D → Klν decay, the leptonic decay constants of the D and Ds mesons, and the mass of the Bc meson. In this paper, we summarize these calculations, with emphasis on their (subsequent) confirmation by measurements in ee, γp and p̄p collisions

Markov models have been a keystone in Artificial Intelligence for many decades. However, they remain unsatisfactory when the environment modelled is partially observable. There are pathological examples where no history of fixed length is sufficient for accurate prediction or decision making. On the other hand, working with a hidden state (like in Hidden Markov Models or Partially Observable Ma...

We study how standard auction objectives in sponsored search markets change with refinements in the prediction of the relevance (click-through rates) of ads. We study mechanisms that optimize for a convex combination of efficiency and revenue. We show that the objective function of such a mechanism can only improve with refined (improved) relevance predictions, i.e., the search engine has no di...