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« Sur les pentes de l'Appenin, presque au milieu de l'Italie, vers la mer Adriatique, est située, comme chacun le sait, la petite cité d'Urbino. Bien qu'elle soit entre des montagnes qui ne sont peut-être pas aussi plaisantes que certaines autres que nous ...
Reliable distributed protocols, such as consensus and atomic broadcast, are known to scale poorly with large number of processes. Recent research has shown that algorithms providing probabilistic guarantees are a promising alternative for such environments ...
We present a novel method to trace the propagation of intrusions or malicious code in networked systems. Our solution is aimed at large numbers of loosely managed workstations typical of a research environment as found in CERN. The system tags events which ...
This paper highlights, both analytically and by simulations, some interesting phenomena regarding the behavior of ensemble-average learning curves of adaptive filters that may have gone unnoticed. Among other results, the paper shows that even ensemble-ave ...
It is known that extracardiac factors (nervous, humoral, and hemodynamic) participate in the power-law behavior of heart-rate variability. To assess whether intrinsic properties of cardiac tissue might also be involved, beat- rate variability was studied i ...
Technology developments such as Web Services, GRID Computing and peer-to-peer toolkits are rapidly changing the way systems deployed in public networks interact. Large-scale usage of these technologies would very likely lead to environments which have many ...
Today the problem of semantic interoperability in information search on the Internet is solved mostly by means of centralization, both at a sys-tem and at a logical level. This approach has been successful to a certain extent. Peer-to-peer systems as a new ...
In this report, we build up on our previous work on speaker clustering, where the number of speakers and segmentation boundaries are unknown a priori. We employ an ergodic HMM with minimum duration topology for this purpose. Starting from a large number of ...
Two novel, potentially antimicrobial erythronolide aglycon analogs ((-)-9 and (-)-30, respectively), which incorporate a large number of contiguous stereogenic centers, have been prepared by multistep synthesis from simple chirons. The chemistry presented ...
The Scalable Reservation Protocol (SRP) provides a light-weight reservation mechanism for adaptive multimedia applications. Our main focus is on good scalability to very large numbers of individual flows. End systems (i.e. senders and destinations) activel ...