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IPPS
2006
IEEE
16 years 26 days ago
Collective operations in NEC's high-performance MPI libraries
We give an overview of the algorithms and implementations in the high-performance MPI libraries MPI/SX and MPI/ES of some of the most important collective operations of MPI (the M...
Hubert Ritzdorf, Jesper Larsson Träff
VLDB
2004
ACM
73views Database» more  VLDB 2004»
16 years 6 days ago
Multi-objective Query Processing for Database Systems
Query processing in database systems has developed beyond mere exact matching of attribute values. Scoring database objects and retrieving only the top k matches or Pareto-optimal...
Wolf-Tilo Balke, Ulrich Güntzer
PODS
1990
ACM
150views Database» more  PODS 1990»
15 years 11 months ago
On Being Optimistic about Real-Time Constraints
- Performancestudiesof concurrencycontrol algorithms for conventional database systems have shown that, under most operating circumstances, locking protocols outperform optimistic ...
Jayant R. Haritsa, Michael J. Carey, Miron Livny
ICIP
2007
IEEE
16 years 8 months ago
Multiframe Error Concealment for Whole-Frame Loss in H.264/AVC
In this paper, we propose a novel error concealment algorithm for the whole-frame loss based on multiframe. In concealing procedure, besides improve the quality of the concealed l...
Yi Liu, Jiajun Bu, Chun Chen, Linjian Mo, Kewei He
ICPR
2008
IEEE
16 years 8 months ago
Unsupervised image embedding using nonparametric statistics
Embedding images into a low dimensional space has a wide range of applications: visualization, clustering, and pre-processing for supervised learning. Traditional dimension reduct...
Guobiao Mei, Christian R. Shelton