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OOPSLA
1989
Springer
15 years 10 months ago
A Denotational Semantics of Inheritance and its Correctness
This paper presents a denotational model of inheritance. The model is based on an intuitive motivation of inheritance as a mechanism for deriving modified versions of recursive d...
William R. Cook, Jens Palsberg
VLDB
1989
ACM
97views Database» more  VLDB 1989»
15 years 10 months ago
Finding Regular Simple Paths in Graph Databases
We consider the following problem: given a labelled directedgraphG anda regularexpressionR, find all pairs of nodesconnectedby a simplepathsuchthattheconcatenationof thelabelsalon...
Alberto O. Mendelzon, Peter T. Wood
VLDB
1989
ACM
104views Database» more  VLDB 1989»
15 years 10 months ago
Event-Join Optimization in Temporal Relational Databases
An Event-Join combinestemporaljoin and outerjoin properties into a single operation. It is mostly used to group temporal attributes of an entity into a single relation. In this pa...
Arie Segev, Himawan Gunadhi
AMS
2007
Springer
465views Robotics» more  AMS 2007»
15 years 10 months ago
Mobile Robot Navigation Support in Living Environments
Navigation and application functionality of mobile robots rely on their collision-avoiding capabilities, also known as local navigation. We present the mobile robot ARTOS (Autonomo...
Christopher Armbrust, Jan Koch, Ulf Stocker, Karst...
DEBS
2007
ACM
15 years 10 months ago
Software architecture using fine-grained event-driven reactive components
In this paper, we describe design motivations and experience with a visual language that treats the architecture of a reactive system as a composition of small, asynchronous softw...
Paul Tarvydas, Norm Sanford