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DSN
2011
IEEE
12 years 7 months ago
Approximate analysis of blocking queueing networks with temporal dependence
—In this paper we extend the class of MAP queueing networks to include blocking models, which are useful to describe the performance of service instances which have a limited con...
Vittoria de Nitto Persone, Giuliano Casale, Evgeni...
TOC
2008
94views more  TOC 2008»
13 years 7 months ago
Optimal lower bounds for the Korkine-Zolotareff parameters of a lattice and for Schnorr's algorithm for the shortest vector prob
Abstract: Schnorr's algorithm for finding an approximation for the shortest nonzero vector in an n-dimensional lattice depends on a parameter k. He proved that for a fixed k ...
Miklós Ajtai
DLT
2006
13 years 9 months ago
Finding Lower Bounds for Nondeterministic State Complexity Is Hard
We investigate the following lower bound methods for regular languages: The fooling set technique, the extended fooling set technique, and the biclique edge cover technique. It is ...
Hermann Gruber, Markus Holzer
CHI
2011
ACM
12 years 11 months ago
Brick by brick: iterating interventions to bridge the achievement gap with virtual peers
We lay out one strand of a continuing investigation into the development of a virtual peer to help children learn to use “school English” and “school-ratified science talk...
Emilee Rader, Margaret Echelbarger, Justine Cassel...
SI3D
2009
ACM
14 years 2 months ago
Approximating dynamic global illumination in image space
Physically plausible illumination at real-time framerates is often achieved using approximations. One popular example is ambient occlusion (AO), for which very simple and efficie...
Tobias Ritschel, Thorsten Grosch, Hans-Peter Seide...