Emmenegger, Sandro
E-Mail-Adresse
Geburtsdatum
Projekt
Organisationseinheiten
Berufsbeschreibung
Nachname
Vorname
Name
Suchergebnisse
A viewpoint-based case-based reasoning approach utilising an enterprise architecture ontology for experience management
2016-03-28, Martin, Andreas, Emmenegger, Sandro, Hinkelmann, Knut, Thönssen, Barbara
The accessibility of project knowledge obtained from experiences is an important and crucial issue in enterprises. This information need about project knowledge can be different from one person to another depending on the different roles he or she has. Therefore, a new ontology-based case-based reasoning (OBCBR) approach that utilises an enterprise ontology is introduced in this article to improve the accessibility of this project knowledge. Utilising an enterprise ontology improves the case-based reasoning (CBR) system through the systematic inclusion of enterprise-specific knowledge. This enterprise-specific knowledge is captured using the overall structure given by the enterprise ontology named ArchiMEO, which is a partial ontological realisation of the enterprise architecture framework (EAF) ArchiMate. This ontological representation, containing historical cases and specific enterprise domain knowledge, is applied in a new OBCBR approach. To support the different information needs of different stakeholders, this OBCBR approach has been built in such a way that different views, viewpoints, concerns and stakeholders can be considered. This is realised using a case viewpoint model derived from the ISO/IEC/IEEE 42010 standard. The introduced approach was implemented as a demonstrator and evaluated using an application case that has been elicited from a business partner in the Swiss research project.
Integrating an Enterprise Architecture Ontology in a Case-Based Reasoning Approach for Project Knowledge
2013-11-08T00:00:00Z, Martin, Andreas, Emmenegger, Sandro, Wilke, Gwendolin
An Ontology-based and Case-based Reasoning supported Workplace Learning Approach
2016, Emmenegger, Sandro, Thönssen, Barbara, Laurenzi, Emanuele, Martin, Andreas, Zhang Sprenger, Congyu, Hinkelmann, Knut, Witschel, Hans Friedrich
A new Retrieval Function for Ontology-Based Complex Case Descriptions
2015, Emmenegger, Sandro, Lutz, Jonas, Witschel, Hans Friedrich, Martin, Andreas
This work focuses on case-based reasoning in domains where cases have complex structures with relationships to an arbitrary number of other (potentially complex and structured) entities and where case characterisations (queries) are potentially incomplete. We summarise the requirements for such domains in terms of case representation and retrieval functions. We then analyse properties of existing similarity measures used in CBR { above all symmetry { and argue that some of these properties are not desirable. By exploiting analogies with retrieval functions in the area of information retrieval { where similar functions have been replaced by new ones not exhibiting the aforementioned undesired properties { we derive a new asymmetric ranking function for case retrieval. On a generated test-bed, we show that indeed the new function results in di erent ranking of cases { and use testbed examples to illustrate why this is desirable from a user's perspective.