Auflistung nach Autor:in "Bauer-Messmer, Bettina"
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- KonferenzbeitragImproving an Environmental Ontology by Incorporating User-Input(Environmental Informatics and Industrial Ecology, 2008) Bauer-Messmer, Bettina; Scharrenbach, Thomas; Grütter, RolfOntologies supporting open and intuitive search in heterogeneous databases have been studied by various research groups for several years. A crucial factor for success in the use of ontologies is the adjustment of the conceptualization represented in the data to the conceptualizations of the individual users. The generation of a high-quality ontology is very cost intensive. The ontological opening up of the data content is straightforward, whereas the conceptualizations of the users are rather difficult to grasp. We present a novel approach for reinforcement ontology learning integrating user-input. The knowledge base consists of expert ontologies modeled beforehand by experts and userinput will be used to create an user ontology. This paper presents the concept of how to incorporate user-input into existing ontologies.
- KonferenzbeitragSemantic Enhancement of Environmental Metadata(Environmental Informatics and Industrial Ecology, 2008) Bischof, Sandro; Bauer-Messmer, BettinaSpatial and environmental information infrastructures emerge around the world. Metadata are a fundamental part of these infrastructures. They allow the reuse of data collections for new research topics, independent of the original context. Therefore infrastructures and associated metadata standards ensure a sustainable data management. Furthermore there is a trend to open up former expert applications to the public. Public users do not know the vocabulary used by experts and therefore need support. This paper presents an ontology-based framework which supports search in open text fields of geo metadata.
- KonferenzbeitragThe Data Centre Nature and Landscape (DNL): Service Oriented Architecture, Metadata Standards and Semantic Technologies in an Environmental Information System(Environmental Informatics and Industrial Environmental Protection: Concepts, Methods and Tools, 2009) Bauer-Messmer, Bettina; Wotruba, Lukas; Müller, Kalin; Bischof, Sandro; Grütter, Rolf; Scharrenbach, Thomas; Meile, Rolf; Hägeli, Martin; Schenker, JürgThe Data centre Nature and Landscape (DNL), originally planned as a long-term database for biotope information, has constantly evolved over the last 11 years. It is now a virtual data centre connecting several databases located all over Switzerland, enriched with a user-friendly web interface, which has been partially redesigned into a service oriented architecture. It can now offer open and intuitive search facilities based on semantic technologies. Many lessons have been learned, particularly in the field of heterogeneous environmental information systems. The purpose of this paper is to share our experience with other experts developing and maintaining environmental information systems.