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An Empirical Evaluation of RDF Graph Partitioning Techniques Read chapter Read first chapter

2018 | OriginalPaper | Chapter

A Query Model for Ontology-Based Event Processing over RDF Streams

Authors : Riccardo Tommasini, Pieter Bonte, Emanuele Della Valle, Femke Ongenae, Filip De Turck

Published in: Knowledge Engineering and Knowledge Management

Publisher: Springer International Publishing

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Abstract

Stream Reasoning (SR) envisioned, investigated and proved the possibility to make sense of streaming data in real-time. Now, the community is investigating more powerful solutions, realizing the vision of expressive stream reasoning. Ontology-Based Event Processing (OBEP) is our contribution to this field. OBEP combines Description Logics and Event Recognition Languages. It allows describing events either as logical statements or as complex event patterns, and it captures their occurrences over ontology streams. In this paper, we define OBEP’s query model, we present a language to define OBEP queries, and we explain the language semantics.

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Footnotes
1
Due to the lack of space, we focus on the essential definition, and we provide references for the interested reader.
 
2
We refer the reader to Horrocks et. al. [11] for a thorough discussion of a more expressive DL.
 
3
Due to the lack of space, we only present SEQ, FIRST, and DURING operators. The remaining ones are available in our extended version at https://​github.​com/​riccardotommasin​i/​obep.
 
4
We consider only the rules (i) <:s rdf:type :C> \(\rightarrow \) C(s); (ii) <:s :p :o> \(\rightarrow \) P(s,o).
 
5
We implemented this mechanism using OWL Annotation Properties since they do not impact the reasoning, but allows distinguishing TBox axioms.
 
6
We will use Manchester Syntax to express B https://​www.​w3.​org/​TR/​owl2-manchester-syntax/​.
 
8
ObservesPerson.
 
9
ObservesClosedDoor.
 
10
Virtually, the EDS is populated by all the combination of events instances.
 
11
An extended version of this paper, with more examples and all the operators semantics is at https://​github.​com/​riccardotommasin​i/​obep.
 
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Metadata
Title
A Query Model for Ontology-Based Event Processing over RDF Streams
Authors
Riccardo Tommasini
Pieter Bonte
Emanuele Della Valle
Femke Ongenae
Filip De Turck
Copyright Year
2018
Book
Knowledge Engineering and Knowledge Management

Print ISBN: 978-3-030-03666-9

Electronic ISBN: 978-3-030-03667-6

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-030-03667-6_28

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