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FOCS
2008
IEEE
15 years 10 months ago
Near-Optimal Sparse Recovery in the L1 Norm
Abstract— We consider the approximate sparse recovery problem, where the goal is to (approximately) recover a highdimensional vector x ∈ Rn from its lower-dimensional sketch Ax...
Piotr Indyk, Milan Ruzic
IPPS
2007
IEEE
15 years 10 months ago
Nonuniformly Communicating Noncontiguous Data: A Case Study with PETSc and MPI
Due to the complexity associated with developing parallel applications, scientists and engineers rely on highlevel software libraries such as PETSc, ScaLAPACK and PESSL to ease th...
Pavan Balaji, Darius Buntinas, Satish Balay, Barry...
STACS
2007
Springer
15 years 10 months ago
Small Space Representations for Metric Min-Sum k -Clustering and Their Applications
The min-sum k-clustering problem is to partition a metric space (P, d) into k clusters C1, . . . , Ck ⊆ P such that k i=1 p,q∈Ci d(p, q) is minimized. We show the first effi...
Artur Czumaj, Christian Sohler
GI
2005
Springer
15 years 9 months ago
Distributed User Modeling for Situated Interaction
: A distributed service to model and control contextual information in mobile and ubiquitous computing environments is presented in this paper. We introduce the general user model ...
Dominik Heckmann
173
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WMASH
2004
ACM
15 years 9 months ago
LOCATOR: location estimation system For wireless LANs
With the wide spread growth of mobile computing devices and local area wireless networks, wireless network providers have started to target the users with value-added services bas...
Ankur Agiwal, Parakram Khandpur, Huzur Saran