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2011
13 years 1 months ago
Goal-oriented Query Rewriting for OWL 2 QL
We present an optimized query rewriting algorithm for OWL 2 QL that computes the rewriting set of a user query by avoiding unnecessary inferences and extended clause subsumption ch...
Alexandros Chortaras, Despoina Trivela, Giorgos B....
ESOP
2001
Springer
14 years 2 months ago
Entailment with Conditional Equality Constraints
Equality constraints (unification constraints) have widespread use in program analysis, most notably in static polymorphic type systems. Conditional equality constraints extend eq...
Zhendong Su, Alexander Aiken
TOOLS
1997
IEEE
14 years 2 months ago
Dynamically Extensible Objects in a Class-Based Language
Object-oriented programming techniques support construction of reusable and extensible code. However, class-based languages have poor support for implementing type-orthogonal beha...
R. W. Schmidt
ICCV
2001
IEEE
15 years 3 days ago
Improving AR using Shadows Arising from Natural Illumination Distribution in Video Sequences
In this paper, we propose a method for generating realistic shadows of virtual objects inserted into a real video sequence. Our aim is to improve and extend the work of [1], which...
Taeone Kim, Yongduek Seo, Ki-Sang Hong
ICC
2009
IEEE
196views Communications» more  ICC 2009»
14 years 5 months ago
Joint Flow Control, Routing and Medium Access Control in Random Access Multi-Hop Wireless Networks
This work extends the existing static framework for joint flow control, routing and medium access control (MAC) in random access multi-hop wireless networks to a dynamic framewor...
Sucha Supittayapornpong, Poompat Saengudomlert