It is by now well-recognised that the na\"ive application of projection postulate on composite quantum systems can induce signalling between their constituent components, indicative a breakdown causality in relativistic spacetime context. Here we introduce necessary and sufficient condition for an ideal measurement observable to be non-signalling. As well as being particularly simple, it genera...

Most current work on spoken human-computer interaction has so far concentrated on interactions between a single user and a dialogue system. The advent of ideas of the computer or dialogue system as a conversational partner in a group of humans, for example within the CHIL-project and elsewhere (e.g. Kirchhoff & Ostendorf, 2003), introduces new requirements on the capabilities of the dialogue sy...

You will understand the title at one level by knowing that I have been a fan of the Boston Red Sox for about seventy years. This loyalty was partially rewarded about seventeen years ago when by chance I had the pleasure of spending an hour with my boyhood hero, Ted Williams. At about the time that I started to follow the Red Sox games by radio, I acquired the notion that I would like someday to...

We present n-dimensional vortex-ring-like and potential-like solutions with unusual properties related to some elliptical differential equations with compact sources. Solutions have almost 3-or 2-dimensional behaviour in the spaces with arbitrary (large) odd and even dimensions, respectively.

Tracking bits through block ciphers and optimizing attacks at hand is one of the tedious task symmetric cryptanalysts have to deal with. It would be nice if a program will automatically handle them at least for well-known attack techniques, so that cryptanalysts will only focus on nding new attacks. However, current automatic tools cannot be used as is, either because they are tailored for spec...