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Future Internet 2012, 4(3), 788-806; doi:10.3390/fi4030788

Towards Annotopia—Enabling the Semantic Interoperability of Web-Based Annotations

*  and
School of Information Technology and Electrical Engineering, The University of Queensland, St. Lucia, QLD 4072, Australia
* Author to whom correspondence should be addressed.
Received: 21 June 2012 / Revised: 7 August 2012 / Accepted: 24 August 2012 / Published: 30 August 2012
(This article belongs to the Special Issue Semantic Interoperability and Knowledge Building)
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This paper describes the results of a collaborative effort that has reconciled the Open Annotation Collaboration (OAC) ontology and the Annotation Ontology (AO) to produce a merged data model [the Open Annotation (OA) data model] to describe Web-based annotations—and hence facilitate the discovery, sharing and re-use of such annotations. Using a number of case studies that include digital scholarly editing, 3D museum artifacts and sensor data streams, we evaluate the OA model’s capabilities. We also describe our implementation of an online annotation server that supports the storage, search and retrieval of OA-compliant annotations across multiple applications and disciplines. Finally we discuss outstanding problem issues associated with the OA ontology, and the impact that certain design decisions have had on the efficient storage, indexing, search and retrieval of complex structured annotations.
Keywords: annotation; interoperability; semantic web; ontology annotation; interoperability; semantic web; ontology
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Hunter, J.; Gerber, A. Towards Annotopia—Enabling the Semantic Interoperability of Web-Based Annotations. Future Internet 2012, 4, 788-806.

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