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ICWE
2004
Springer
15 years 8 months ago
Personalisation Services for Self E-learning Networks
This paper describes the personalisation services designed for self e-learning networks in the SeLeNe project. A self e-learning network consists of web-based learning objects that...
Kevin Keenoy, Alexandra Poulovassilis, Vassilis Ch...
SEMWEB
2004
Springer
15 years 8 months ago
Query Answering for OWL-DL with Rules
Both OWL-DL and function-free Horn rules3 are decidable logics with interesting, yet orthogonal expressive power: from the rules perspective, OWL-DL is restricted to tree-like rule...
Boris Motik, Ulrike Sattler, Rudi Studer
131
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COOPIS
2003
IEEE
15 years 8 months ago
A Fuzzy Model for Representing Uncertain, Subjective, and Vague Temporal Knowledge in Ontologies
Abstract. Time modeling is a crucial feature in many application domains. However, temporal information often is not crisp, but is uncertain, subjective and vague. This is particul...
Gábor Nagypál, Boris Motik
120
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SIGMOD
2010
ACM
239views Database» more  SIGMOD 2010»
15 years 8 months ago
Computing label-constraint reachability in graph databases
Our world today is generating huge amounts of graph data such as social networks, biological networks, and the semantic web. Many of these real-world graphs are edge-labeled graph...
Ruoming Jin, Hui Hong, Haixun Wang, Ning Ruan, Yan...
ESWS
2010
Springer
15 years 8 months ago
Put in Your Postcode, Out Comes the Data: A Case Study
A single datum or a set of a categorical data has little value on its own. Combinations of disparate sets of data increase the value of those data sets and helps to discover intere...
Tope Omitola, Christos L. Koumenides, Igor O. Popo...