Sciweavers

1387 search results - page 150 / 278
» Convexity in Discrete Space
Sort
View
GM
1999
Springer
15 years 10 months ago
Piecewise Linear Wavelets Over Type-2 Triangulations
: The idea of summing pairs of so-called semi-wavelets has been found to be very useful for constructing piecewise linear wavelets over refinements of arbitrary triangulations. In...
Michael S. Floater, Ewald G. Quak
COMPGEOM
1997
ACM
15 years 10 months ago
Approximate Nearest Neighbor Queries Revisited
This paper proposes new methods to answer approximate nearest neighbor queries on a set of n points in d-dimensional Euclidean space. For any xed constant d, a data structure with...
Timothy M. Chan
ICALP
1994
Springer
15 years 10 months ago
On some Relations between Dynamical Systems and Transition Systems
Abstract. In this paper we de ne a precise notion of abstraction relation between continuous dynamical systems and discrete state-transition systems. Our main result states that ev...
Eugene Asarin, Oded Maler
COMPGEOM
1990
ACM
15 years 10 months ago
Minimum-Link Paths Among Obstacles in the Plane
Given a set of nonintersecting polygonal obstacles in the plane, the link distance between two points s and t is the minimum number of edges required to form a polygonal path conn...
Joseph S. B. Mitchell, Günter Rote, Gerhard J...
COMPGEOM
2007
ACM
15 years 10 months ago
A space-optimal data-stream algorithm for coresets in the plane
Given a point set P R2 , a subset Q P is an -kernel of P if for every slab W containing Q, the (1+)-expansion of W also contains P. We present a data-stream algorithm for mainta...
Pankaj K. Agarwal, Hai Yu