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FOIKS
2010
Springer
15 years 9 months ago
On the Existence of Armstrong Data Trees for XML Functional Dependencies
Armstrong databases are a popular tool in example-based database design. An Armstrong database for a given constraint set from a fixed constraint class Z satisfies precisely those ...
Sven Hartmann, Henning Köhler, Thu Trinh
ER
2008
Springer
165views Database» more  ER 2008»
15 years 8 months ago
Content Ontology Design Patterns as Practical Building Blocks for Web Ontologies
In this paper we present how to extract and describe emerging content ontology design patterns, and how to compose, specialize and expand them for ontology design, with particular ...
Valentina Presutti, Aldo Gangemi
GPC
2007
Springer
16 years 21 days ago
Design of PeerSum: A Summary Service for P2P Applications
Sharing huge databases in distributed systems is inherently difficult. As the amount of stored data increases, data localization techniques become no longer sufficient. A more ef...
Rabab Hayek, Guillaume Raschia, Patrick Valduriez,...
SIGMOD
2005
ACM
108views Database» more  SIGMOD 2005»
16 years 6 months ago
SPIDER: flexible matching in databases
We present a prototype system, SPIDER, developed at AT&T Labs? Research, which supports flexible string attribute value matching in large databases. We discuss the design prin...
Nick Koudas, Amit Marathe, Divesh Srivastava
DEXAW
2007
IEEE
153views Database» more  DEXAW 2007»
16 years 26 days ago
Enhancing Ontology Concept Design by Knowledge Discovery
In this paper, we propose a knowledge discovery-based approach to ontology concept design. In our approach, concept design is a stepwise activity which exploits ontology matching ...
Silvana Castano, Alfio Ferrara