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PADS
2003
ACM
15 years 4 months ago
Parallel Network Simulation under Distributed Genesis
We describe two major developments in the General Network Simulation Integration System (Genesis): the support for BGP protocol in large network simulations and distribution of th...
Boleslaw K. Szymanski, Yu Liu, Rashim Gupta
CICLING
2003
Springer
15 years 4 months ago
Starting with Complex Primitives Pays Off
In setting up a formal system to specify a grammar formalism, the conventional (mathematical) wisdom is to start with primitives (basic primitive structures) as simple as possible...
Aravind K. Joshi
ISIPTA
1999
IEEE
116views Mathematics» more  ISIPTA 1999»
15 years 3 months ago
On the Distribution of Natural Probability Functions
The purpose of this note is to describe the underlying insights and results obtained by the authors, and others, in a series of papers aimed at modelling the distribution of `natu...
Jeff B. Paris, Paul N. Watton, George M. Wilmers
VLDB
1999
ACM
140views Database» more  VLDB 1999»
15 years 3 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
SIGMOD
1998
ACM
96views Database» more  SIGMOD 1998»
15 years 3 months ago
Wavelet-Based Histograms for Selectivity Estimation
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
Yossi Matias, Jeffrey Scott Vitter, Min Wang