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» On Simulation-Checking with Sequential Systems
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ICDE
1998
IEEE
124views Database» more  ICDE 1998»
13 years 12 months ago
Compressing Relations and Indexes
We propose a new compression algorithm that is tailored to database applications. It can be applied to a collection of records, and is especially e ective for records with many lo...
Jonathan Goldstein, Raghu Ramakrishnan, Uri Shaft
SIGMOD
1996
ACM
132views Database» more  SIGMOD 1996»
13 years 11 months ago
Cost-Based Optimization for Magic: Algebra and Implementation
Magic sets rewriting is a well-known optimization heuristic for complex decision-support queries. There can be many variants of this rewriting even for a single query, which diffe...
Praveen Seshadri, Joseph M. Hellerstein, Hamid Pir...
ICDE
1994
IEEE
103views Database» more  ICDE 1994»
13 years 11 months ago
A Multi-Set Extended Relational Algebra - A Formal Approach to a Practical Issue
The relational data model is based on sets of tuples, i.e. it does not allow duplicate tuples in a relation. Many database languages and systems do require multi-set place, the hi...
Paul W. P. J. Grefen, Rolf A. de By
PPOPP
1990
ACM
13 years 11 months ago
Concurrent Aggregates (CA)
Toprogrammassivelyconcurrent MIMDmachines, programmersneed tools for managingcomplexity. One important tool that has been used in the sequential programmingworld is hierarchies of...
Andrew A. Chien, William J. Dally
CGO
2009
IEEE
13 years 11 months ago
Communication-Sensitive Static Dataflow for Parallel Message Passing Applications
Message passing is a very popular style of parallel programming, used in a wide variety of applications and supported by many APIs, such as BSD sockets, MPI and PVM. Its importance...
Greg Bronevetsky