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» Ordered Sets in the Calculus of Data Structures
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SEMWEB
2010
Springer
14 years 7 months ago
Using Reformulation Trees to Optimize Queries over Distributed Heterogeneous Sources
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
Yingjie Li, Jeff Heflin
COMSIS
2007
128views more  COMSIS 2007»
14 years 9 months ago
Constructing program animations using a pattern-based approach
The aim of this paper is to discuss how our pattern-based strategy for the visualization of data and control flow can effectively be used to animate the program and exhibit its beh...
Daniela Carneiro da Cruz, Pedro Rangel Henriques, ...
CORR
2007
Springer
98views Education» more  CORR 2007»
14 years 9 months ago
Bistable Biorders: A Sequential Domain Theory
We give a simple order-theoretic construction of a Cartesian closed category of sequential functions. It is based on bistable biorders, which are sets with a partial order — the ...
James Laird
CN
1998
95views more  CN 1998»
14 years 9 months ago
The Limits of Web Metadata, and Beyond
The World Wide Web currently has a huge amount of data, with practically no classification information, and this makes it extremely difficult to handle effectively. It has been re...
Massimo Marchiori
ICDE
2000
IEEE
168views Database» more  ICDE 2000»
15 years 11 months ago
PAC Nearest Neighbor Queries: Approximate and Controlled Search in High-Dimensional and Metric Spaces
In high-dimensional and complex metric spaces, determining the nearest neighbor (NN) of a query object ? can be a very expensive task, because of the poor partitioning operated by...
Paolo Ciaccia, Marco Patella