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SEMWEB
2010
Springer
15 years 4 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
SEMWEB
2010
Springer
15 years 4 months ago
Evolution of DL - Lite Knowledge Bases
Abstract. We study the problem of evolution for Knowledge Bases (KBs) expressed in Description Logics (DLs) of the DL-Lite family. DL-Lite is at the basis of OWL 2 QL, one of the t...
Diego Calvanese, Evgeny Kharlamov, Werner Nutt, Dm...
EDM
2009
127views Data Mining» more  EDM 2009»
15 years 4 months ago
How do Students Organize Personal Information Spaces?
The purpose of this study is to empirically reveal strategies of students' organization of learning-related digital materials within an online personal information archive. Re...
Sharon Hardof-Jaffe, Arnon Hershkovitz, Hama Abu-K...
GVD
2009
162views Database» more  GVD 2009»
15 years 4 months ago
Archiving and Maintaining Curated Databases
Curated databases represent a substantial amount of effort by a dedicated group of people to produce a definitive description of some subject area. The value of curated databases ...
Heiko Müller
ICSE
2009
IEEE-ACM
15 years 4 months ago
Software Assumptions Failure Tolerance: Role, Strategies, and Visions
Abstract. At our behest or otherwise, while our software is being executed, a huge variety of design assumptions is continuously matched with the truth of the current condition. Wh...
Vincenzo De Florio