http://dl.gi.de/handle/20.500.12116/30894 Tue, 21 Jul 2026 13:29:05 GMT 2026-07-21T13:29:05Z http://dl.gi.de:80/bitstream/id/32f1b343-34a7-47cc-9638-9767c2226814/ http://dl.gi.de/handle/20.500.12116/30894 http://dl.gi.de/handle/20.500.12116/30909 Evolution of the metadata in the ontology-based knowledge management systems Stojanovic, Ljiljana; Stojanovic, Nenad; Handschuh, Siegfried Minor, Mirjam; Staab, Steffen An ontology-based knowledge management system uses an ontology to represent explicit specification of a business domain and to serve as a backbone for providing and searching for knowledge sources. But, dynamically changing business environment implies changes in the conceptualisation of a business domain that are reflected on the underlying domain ontologies. Consequently, these changes have effects on the performances and validity of the KM system. In this paper we present an approach for enabling consistency of the description of knowledge sources in an ontology-based KM system in the case of changes in the domain ontology. This approach is based on our research in the ontology evolution and ontology-based annotation of documents. The proposed method is implemented in our semantic annotation framework so that effcient acquiring and maintaining of ontology-based metadata is supported. Tue, 01 Jan 2002 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/30909 2002-01-01T00:00:00Z http://dl.gi.de/handle/20.500.12116/30910 Towards the fast monitoring of case properties Iglezakis, Ioannis Minor, Mirjam; Staab, Steffen Applying case properties over a case base can indicate conflicts in or between cases. Monitor these results is important to trigger the maintenance of a case-based reasoning system. However, the complexity of applying a single case property over a case base is O(n2). Tue, 01 Jan 2002 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/30910 2002-01-01T00:00:00Z http://dl.gi.de/handle/20.500.12116/30911 Architecture-based integration of CBR-components into KM-systems Gronau, Norbert; Laskowski, Frank Minor, Mirjam; Staab, Steffen Knowledge-Management (KM)-systems integrate multiple technologies with the purpose of supporting users who have "knowledge-related" problems. Case-Based Reasoning (CBR)-technology is well known for improving problem solutions. Combining both concepts the project "TO-KNOW" has the goal to design a CBR-component that is adaptable to typical KM-Systems. The basic idea is to take into account user-queries as (intermediate) problem-solutions for getting the needed information from the KM-System's discovery services. In this paper we describe an architecture-based approach to design the CBR-component yielding a light-weighted integration into a KM-system. This is accomplished by looking at both parts designated for integration in terms of their architecture, i.e. the modularity of data and functionality. Since different KM-systems will allow various degrees of synergy, the process should result in a highly modularized CBR-component being ready for different models of integration. An overview about our design-method is given as well as examples covering first results on a more detailed level. Tue, 01 Jan 2002 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/30911 2002-01-01T00:00:00Z http://dl.gi.de/handle/20.500.12116/30907 Construction of BDI agents from CBR systems Corchado, J. M.; Laza, R. Minor, Mirjam; Staab, Steffen This paper shows how deliberative agents can be built by means of a case-based reasoning system. The concept of deliberative agent is introduced and the case-based reasoning model is presented. Once the advantages and disadvantages of such agents have been discussed, it will be shown to solve some of their inconvenients, especially those related to their implementation and adaption. The World WIde Web has emerged as one of the most popular vehicle for disseminating and sharing information through computer networks, a distributed agent-based solution for e-business, in which such agents have been used, is also presented and evaluated in this paper. Tue, 01 Jan 2002 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/30907 2002-01-01T00:00:00Z