The content of many communication services depends on the context, such as the user’s location. We describe a ’service’ URN that allows to identify context-dependent services that can be resolved in a distributed manner. Schulzrinne Expires February 28, 2007 [Page 1] Internet-Draft Service URN August 2006 Table of

Event-based systems are well suited for application in sensor networks. Compared to the traditional application domains of event-based systems however sensor networks impose a number of challenging requirements. In this short paper, we present an architecture designed to address these requirements: the CoDED platform for context-dependent event detection.

In interactive speech applications the expected vocabulary and the expected user utterances change from one dialogue step to the next one. The use of several context dependent language models results in a better system performance than the use of a single model. In this paper we present a new approach combining syntactical and statistical language constraints to a single language model. Recogni...

The content of many communication services depends on the context, such as the user’s location. We describe a ’service’ URN that allows to register such context-dependent services that can be resolved in a distributed manner. Schulzrinne Expires November 20, 2006 [Page 1] Internet-Draft Service URN May 2006 Table of

If A is a context-free language over a two-letter alphabet, then the set of all words obtained by sorting words in A and the set of all permutations of words in A are context-free. This is false over alphabets of three or more letters. Thus these problems illustrate a difference in behavior between twoand three-letter alphabets. The following problem appeared on a recent exam at Cornell: Let be...

In German, wh-questions and verb-second wh-exclamatives are string-identical and can only be distinguished by intonation. This study presents data from a production experiment where speakers produced contextualized questions and exclamatives, showing that the two sentence types differ in many acoustic measures throughout the clause. The results also indicate that the realization of both sentenc...

This paper focuses on relationships between agent models and their physical realisations. Approaches on reduction from philosophical literature are analysed in a formalised manner, and extended by incorporating context-dependency w.r.t. specific makeups for their realisations. It is shown how these context-dependent reduction approaches can be translated into each other and how they can be appl...

Consider a sequence of i.i.d. random variables, where each variable is refreshed (i.e., replaced by an independent variable with the same law) independently, according to a Poisson clock. At any xed time t, the resulting sequence has the same law as at time 0, but there can be exceptional random times at which certain almost sure properties of the time 0 sequence are violated. We prove that the...

Although context-dependent spike synchronization among populations of neurons has been experimentally observed, its functional role remains controversial. In this modeling study, we demonstrate that in a network of spiking neurons organized according to spike-timing-dependent plasticity, an increase in the degree of synchrony of a uniform input can cause transitions between memorized activity p...