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VLDB
1997
ACM
140views Database» more  VLDB 1997»
14 years 1 months ago
Parallel Query Scheduling and Optimization with Time- and Space-Shared Resources
Scheduling query execution plans is a particularly complex problem in hierarchical parallel systems, where each site consists of a collection of local time-shared (e.g., CPU(s) or...
Minos N. Garofalakis, Yannis E. Ioannidis
ISSAC
1995
Springer
174views Mathematics» more  ISSAC 1995»
14 years 18 days ago
Numerical Uniformization of Hyperelliptic Curves
Abstract. In this paper we derive an algorithm that computes, for a given algebraic hyperelliptic plane curve C of genus p, p > 1, defined by a polynomial y2 = (x−λ1) · · ...
Klaus-Dieter Semmler, Mika Seppälä
COLOGNETWENTE
2007
13 years 10 months ago
Approximating minimum independent dominating sets in wireless networks
We present the first polynomial-time approximation scheme (PTAS) for the Minimum Independent Dominating Set problem in graphs of polynomially bounded growth. Graphs of bounded gr...
Johann Hurink, Tim Nieberg
CORR
2010
Springer
207views Education» more  CORR 2010»
13 years 9 months ago
A Jamming-Resistant MAC Protocol for Multi-Hop Wireless Networks
This paper presents a simple local medium access control protocol, called Jade, for multi-hop wireless networks with a single channel that is provably robust against adaptive adver...
Andréa W. Richa, Christian Scheideler, Stef...
DCG
2010
67views more  DCG 2010»
13 years 9 months ago
Conformal Mapping in Linear Time
Given any > 0 and any planar region bounded by a simple n-gon P we construct a (1 + )-quasiconformal map between and the unit disk in time C()n. One can take C() = C + C log ...
Christopher J. Bishop