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2000
ACM
13 years 11 months ago
Parallel Smoothed Aggregation Multigrid: Aggregation Strategies on Massively Parallel Machines
Algebraic multigrid methods offer the hope that multigrid convergence can be achieved (for at least some important applications) without a great deal of effort from engineers an...
Ray S. Tuminaro, Charles Tong
STOC
2003
ACM
171views Algorithms» more  STOC 2003»
14 years 7 months ago
Primal-dual meets local search: approximating MST's with nonuniform degree bounds
We present a new bicriteria approximation algorithm for the degree-bounded minimum-cost spanning tree problem: Given an undirected graph with nonnegative edge weights and degree b...
Jochen Könemann, R. Ravi
SIGDOC
2005
ACM
14 years 1 months ago
User-centred design and evaluation of ubiquitous services
Theoretical and technological progress has revived the interest in the design of services for the support of co-located human-human communication and collaboration, witnessing the...
Rahat Iqbal, Janienke Sturm, Olga A. Kulyk, Jimmy ...
ASPLOS
2009
ACM
14 years 8 months ago
RapidMRC: approximating L2 miss rate curves on commodity systems for online optimizations
Miss rate curves (MRCs) are useful in a number of contexts. In our research, online L2 cache MRCs enable us to dynamically identify optimal cache sizes when cache-partitioning a s...
David K. Tam, Reza Azimi, Livio Soares, Michael St...
MOBISYS
2009
ACM
14 years 8 months ago
A framework of energy efficient mobile sensing for automatic user state recognition
Urban sensing, participatory sensing, and user activity recognition can provide rich contextual information for mobile applications such as social networking and location-based se...
Yi Wang, Jialiu Lin, Murali Annavaram, Quinn Jacob...