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EDBT
2006
ACM
179views Database» more  EDBT 2006»
14 years 8 months ago
TrajPattern: Mining Sequential Patterns from Imprecise Trajectories of Mobile Objects
Abstract. Mobile objects have become ubiquitous in our everyday lives, ranging from cellular phones to sensors, therefore, analyzing and mining mobile data becomes an interesting p...
Jiong Yang, Meng Hu
ICCD
2007
IEEE
183views Hardware» more  ICCD 2007»
14 years 5 months ago
Constraint satisfaction in incremental placement with application to performance optimization under power constraints
We present new techniques for explicit constraint satisfaction in the incremental placement process. Our algorithm employs a Lagrangian Relaxation (LR) type approach in the analyt...
Huan Ren, Shantanu Dutt
ICCAD
2008
IEEE
140views Hardware» more  ICCAD 2008»
14 years 5 months ago
Algorithms for simultaneous consideration of multiple physical synthesis transforms for timing closure
We propose a post-placement physical synthesis algorithm that can apply multiple circuit synthesis and placement transforms on a placed circuit to improve the critical path delay ...
Huan Ren, Shantanu Dutt
EDBT
2010
ACM
185views Database» more  EDBT 2010»
14 years 3 months ago
Optimizing joins in a map-reduce environment
Implementations of map-reduce are being used to perform many operations on very large data. We examine strategies for joining several relations in the map-reduce environment. Our ...
Foto N. Afrati, Jeffrey D. Ullman
LCTRTS
2010
Springer
14 years 3 months ago
Sampling-based program execution monitoring
For its high overall cost during product development, program debugging is an important aspect of system development. Debugging is a hard and complex activity, especially in time-...
Sebastian Fischmeister, Yanmeng Ba