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» A Theory of Closure Operators
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RELMICS
2009
Springer
16 years 1 months ago
Contact Relations with Applications
Using relation algebra, we generalize Aumann’s notion of a contact relation and that of a closure operation from powersets to general membership relations and their induced parti...
Gunther Schmidt, Rudolf Berghammer
JOLLI
2002
109views more  JOLLI 2002»
15 years 6 months ago
Linear, Branching Time and Joint Closure Semantics for Temporal Logic
Temporal logic can be used to describe processes: their behaviour is characterized by a set of temporal models axiomatized by a temporal theory. Two types of models are most often ...
Joeri Engelfriet, Jan Treur
IJRR
2010
112views more  IJRR 2010»
15 years 5 months ago
On the Passive Force Closure Set of Planar Grasps and Fixtures
This paper considers grasps and fixtures whose contacts react according to force-displacement laws consistent with friction constrains at the contacts. The passive force closure s...
Amir Shapiro, Elon Rimon, Shraga Shoval
PODS
2008
ACM
143views Database» more  PODS 2008»
16 years 6 months ago
XPath, transitive closure logic, and nested tree walking automata
We consider the navigational core of XPath, extended with two operators: the Kleene star for taking the transitive closure of path expressions, and a subtree relativisation operat...
Balder ten Cate, Luc Segoufin
CC
2006
Springer
118views System Software» more  CC 2006»
15 years 10 months ago
Lightweight Lexical Closures for Legitimate Execution Stack Access
We propose a new language concept called "L-closures" for a running program to legitimately inspect/modify the contents of its execution stack. L-closures are lightweight...
Masahiro Yasugi, Tasuku Hiraishi, Taiichi Yuasa