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IPL
2010
71views more  IPL 2010»
13 years 6 months ago
New common ancestor problems in trees and directed acyclic graphs
We derive a new generalization of lowest common ancestors (LCAs) in dags, called the lowest single common ancestor (LSCA). We show how to preprocess a static dag in linear time su...
Johannes Fischer, Daniel H. Huson
ICCSA
2007
Springer
14 years 2 months ago
Weak Visibility of Two Objects in Planar Polygonal Scenes
Abstract. Determining whether two segments s and t in a planar polygonal scene weakly see each other is a classical problem in computational geometry. In this problem we seek for a...
Mostafa Nouri, Alireza Zarei, Mohammad Ghodsi
DASFAA
2007
IEEE
221views Database» more  DASFAA 2007»
14 years 2 months ago
TwigList : Make Twig Pattern Matching Fast
Twig pattern matching problem has been widely studied in recent years. Give an XML tree T . A twig-pattern matching query, Q, represented as a query tree, is to find all the occur...
Lu Qin, Jeffrey Xu Yu, Bolin Ding
TCAD
1998
95views more  TCAD 1998»
13 years 8 months ago
High-precision interconnect analysis
— Integrated circuits have evolved to a stage where interconnections significantly limit their performance and functional complexity. We introduce a set of tools to perform high...
Rui Martins, Wolfgang Pyka, Rainer Sabelka, Siegfr...
SIGSAND
2008
13 years 9 months ago
Relational Model Driven Application Design
Abstract: A closer look at typical information systems shows that relatively simple routines often contribute significantly to the overall expenses of the software development proc...
Michael Guckert, René Gerlach