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VLDB
1999
ACM
140views Database» more  VLDB 1999»
15 years 1 months ago
Combining Histograms and Parametric Curve Fitting for Feedback-Driven Query Result-size Estimation
This paper aims to improve the accuracy of query result-size estimations in query optimizers by leveraging the dynamic feedback obtained from observations on the executed query wo...
Arnd Christian König, Gerhard Weikum
PLDI
1990
ACM
15 years 1 months ago
A Fresh Look at Optimizing Array Bound Checking
- This paper describes techniques for optimizing range checks performed to detect array bound violations. In addition to the elimination of range check:s, the optimizations discuss...
Rajiv Gupta
PPOPP
1990
ACM
15 years 1 months ago
Employing Register Channels for the Exploitation of Instruction Level Parallelism
Abstract - A multiprocessor system capable of exploiting fine-grained parallelism must support efficient synchronization and data passing mechanisms. This paper demonstrates the us...
Rajiv Gupta
DRM
2006
Springer
15 years 1 months ago
The problem with rights expression languages
In this paper we consider the functionality that a rights expression language (REL) should provide within a digital rights management (DRM) environment. We begin by noting the dea...
Pramod A. Jamkhedkar, Gregory L. Heileman, Iv&aacu...
VLDB
2002
ACM
154views Database» more  VLDB 2002»
14 years 9 months ago
I/O-Conscious Data Preparation for Large-Scale Web Search Engines
Given that commercial search engines cover billions of web pages, efficiently managing the corresponding volumes of disk-resident data needed to answer user queries quickly is a f...
Maxim Lifantsev, Tzi-cker Chiueh