Abstract
We propose a mediator architecture that allows a learning system to retrieve learning objects from heterogeneous repositories. A mediating component accepts queries formulated in a uniform query language, translates them into repository specific queries and passes them to each connected repository. For the translation of queries, a novel ontology-based query-rewriting method has been developed. The architecture has been realized in the Web-based, user-adaptive and interactive e-learning environment ActiveMath. Currently, it enables the ActiveMath’s course planner to access four heterogeneous learning object repositories.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Neven, F., Duval, E.: Reusable learning objects: a survey of LOM-based repositories. In: Proceedings of the 10th ACM International Conference on Multimedia, pp. 291–294 (2002)
Wiederhold, G.: Mediators in the architeture of future information systems. The IEEE Computer Magazine (1992)
Ullrich, C.: Course generation based on HTN Planning. In: Jedlitschka, A., Brandherm, B. (eds.) Proceedings of 13th Annual Workshop of the SIG Adaptivity and User Modeling in Interactive Systems, pp. 74–79 (2005)
Ullrich, C.: The learning-resource-type is dead, long live the learning- resource-type! Learning Objects and Learning Designs 1(1), 7–15 (2005)
IEEE Learning Technology Standards Committee: 1484.12.1-2002 IEEE standard for Learning Object Metadata (2002)
de Bruijn, J., Foxvog, D., Zimmermann, K.: Ontology Mediation Patterns Library V1. D4.3.1, SEKT-project (2005)
Pazienza, M.T., Stellato, A., Vindigni, M., Zanzotto, F.M.: XeOML: An XML-based extensible Ontology Mapping Language. In: Workshop on Meaning Coordination and Negotiation, held in conjunction with 3rd International Semantic Web Conference (ISWC 2004), Hiroshima, Japan (2004)
Simon, B., Massart, D., van Assche, F., Ternier, S., Duval, E., Brantner, S., Olmedilla, D., Miklos, Z.: A simple query interface for interoperable learning repositories. In: Simon, B., Olmedilla, D., Saito, N. (eds.) Proceedings of the 1st Workshop on Interoperability of Web-based Educational Systems, Chiba, Japan, pp. 11–18. CEUR (2005)
Melis, E., Andres, J.B.E., Frischauf, A., Goguadze, G., Libbrecht, P., Pollet, M., Ullrich, C.: Knowledge representation and management in activemath. Annals of Mathematics and Artificial Intelligence. Special Issue on Management of Mathematical Knowledge Proceedings of the First Conference on Mathematical Knowledge Management MKM 2001. a special issue of the Annals of Mathematics and Artificial Intelligence 38, 47–64 (2003)
Jantke, K.P., Grieser, G., Lange, S., Memmel, M.: Damit: Data mining lernen und lehren. In: Abecker, A., Bickel, S., Brefeld, U., Drost, I., Henze, N., Herden, O., Minor, M., Scheffer, T., Stojanovic, L., Weibelzahl, S. (eds.) LWA 2004, Lernen – Wissensentdeckung – Adaptivität, October 4-6, pp. 171–179. Humboldt-Universität Berlin (2004)
Thomas, R.: Millenium mathematics project - bringing mathematics to life. MSOR Connections 4 (2004)
Nejdl, W., Wolf, B., Qu, C., Decker, S., Sintek, M., Naeve, A., Nilsson, M., Palmer, M., Risch, T.: Edutella: A P2P Networking Infrastructure Based on RDF. In: Proceedings of the 11th Iternational World Wide Web Conference (WWW 2002) (2002)
Miklos, Z., Neumann, G., Zdun, U., Sintek, M.: Querying Semantic Web Resources Using TRIPLE Views. In: Kalfoglou, Y., Schorlemmer, M., Sheth, A., Staab, S., Uschold, M. (eds.) Semantic Interoperability and Integration. Number 04391 in Dagstuhl Seminar Proceedings, Internationales Begegnungs- und Forschungszentrum (IBFI), Schloss Dagstuhl, Germany (2005) [date of citation: 2005-01-01], http://drops.dagstuhl.de/opus/volltexte/2005/47
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2006 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Kärger, P., Ullrich, C., Melis, E. (2006). Integrating Learning Object Repositories Using a Mediator Architecture. In: Nejdl, W., Tochtermann, K. (eds) Innovative Approaches for Learning and Knowledge Sharing. EC-TEL 2006. Lecture Notes in Computer Science, vol 4227. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11876663_16
Download citation
DOI: https://doi.org/10.1007/11876663_16
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-45777-0
Online ISBN: 978-3-540-46234-7
eBook Packages: Computer ScienceComputer Science (R0)