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WWW
2010
ACM
15 years 11 months ago
Data summaries for on-demand queries over linked data
Typical approaches for querying structured Web Data collect (crawl) and pre-process (index) large amounts of data in a central data repository before allowing for query answering....
Andreas Harth, Katja Hose, Marcel Karnstedt, Axel ...
CLOUD
2010
ACM
15 years 11 months ago
Nephele/PACTs: a programming model and execution framework for web-scale analytical processing
We present a parallel data processor centered around a programming model of so called Parallelization Contracts (PACTs) and the scalable parallel execution engine Nephele [18]. Th...
Dominic Battré, Stephan Ewen, Fabian Hueske...
MSS
1999
IEEE
137views Hardware» more  MSS 1999»
15 years 10 months ago
Overview of a TRW Pilot Program
Recently TRW fielded a prototype system for a government customer. It provides a wide range of capabilities including data collection, hierarchical storage, automated distribution...
William A. Olsen
HT
1993
ACM
15 years 10 months ago
Concurrency Control in Collaborative Hypertext Systems
Traditional concurrency control techniques for database systems (transaction management based on locking protocols) have been successful in many multiuser settings, but these tech...
Uffe Kock Wiil, John J. Leggett
DEXA
2007
Springer
107views Database» more  DEXA 2007»
15 years 10 months ago
When Mobile Objects' Energy Is Not So Tight: A New Perspective on Scalability Issues of Continuous Spatial Query Systems
The two dominant costs in continuous spatial query systems are the wireless communication cost for location update, and the evaluation cost for query processing. Existing works add...
Tai T. Do, Fuyu Liu, Kien A. Hua