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» On Coherence in Computer Algebra
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COMPGEOM
2007
ACM
15 years 1 months ago
Kinetic KD-trees and longest-side KD-trees
We propose a simple variant of kd-trees, called rank-based kd-trees, for sets of points in Rd . We show that a rank-based kd-tree, like an ordinary kd-tree, supports range search ...
Mohammad Ali Abam, Mark de Berg, Bettina Speckmann
VLDB
1987
ACM
108views Database» more  VLDB 1987»
15 years 1 months ago
Translating and Optimizing SQL Queries Having Aggregates
is at least ae powerful as SQL. Two well known relational query languages that have a sound theoretical foundation are relational algebra and relational calculus. As SQL is more cl...
Günter von Bültzingsloewen
CSFW
2010
IEEE
15 years 1 months ago
A Framework for the Sound Specification of Cryptographic Tasks
Nowadays it is widely accepted to formulate the security of a protocol carrying out a given task via the "trusted-party paradigm," where the protocol execution is compar...
Juan A. Garay, Aggelos Kiayias, Hong-Sheng Zhou
CAGD
2006
103views more  CAGD 2006»
14 years 10 months ago
The implicit structure of ridges of a smooth parametric surface
Given a smooth surface, a blue (red) ridge is a curve such that at each of its points, the maximum (minimum) principal curvature has an extremum along its curvature line. Ridges a...
Frédéric Cazals, Jean-Charles Faug&e...
ENTCS
2006
146views more  ENTCS 2006»
14 years 10 months ago
Relating State-Based and Process-Based Concurrency through Linear Logic
This paper has the purpose of reviewing some of the established relationships between logic and concurrency, and of exploring new ones. Concurrent and distributed systems are noto...
Iliano Cervesato, Andre Scedrov