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OOPSLA
1997
Springer
15 years 10 months ago
Efficient Type Inclusion Tests
A type inclusion test determines whether one type is a subtype of another. Efficient type testing techniques exist for single subtyping, but not for languages with multiple subtyp...
Jan Vitek, R. Nigel Horspool, Andreas Krall
BTW
2009
Springer
99views Database» more  BTW 2009»
15 years 10 months ago
A Framework for Reasoning about Share Equivalence and Its Integration into a Plan Generator
: Very recently, Cao et al. presented the MAPLE approach, which accelerates queries with multiple instances of the same relation by sharing their scan operator. The principal idea ...
Thomas Neumann, Guido Moerkotte
ER
2008
Springer
106views Database» more  ER 2008»
15 years 8 months ago
Towards a Compositional Semantic Account of Data Quality Attributes
We address the fundamental question: what does it mean for data in a database to be of high quality? We motivate our discussion with examples, where traditional views on data quali...
Lei Jiang, Alexander Borgida, John Mylopoulos
AAAI
2010
15 years 8 months ago
Unsupervised Learning of Event Classes from Video
We present a method for unsupervised learning of event classes from videos in which multiple actions might occur simultaneously. It is assumed that all such activities are produce...
Muralikrishna Sridhar, Anthony G. Cohn, David C. H...
CMG
2008
15 years 8 months ago
Computing Missing Service Demand Parameters for Performance Models
One of the challenges in building analytic performance models such as queuing network models is obtaining service demands for the various workloads and various devices. While some...
Daniel A. Menascé