Mentzas, G.,National Technical
University of Athens, Greece; Apostolou, D.,Planet Ernst &
Young SA, Athens, Greece ; Young, R., Knowledge Associates,
Cambridge, UK;Abecker, A., DFKI, Kaiserslautern, Germany:
Project name: Validation and Exploration of Knowledge Bases by
Keywords: Inductive Logic Programming, Theory Revision, Data Mining,
Funded by the German Federal Ministry for Education and Research
Bidjan Tschaitschian, Andreas Abecker, Michael Sintek: Szenarien
im Wissensmanagement. Studie der DFKI GmbH Kaiserslautern im Auftrag
der Multimedia Software GmbH Dresden. 1999.
Michael M. Richter, Knut Hinkelmann, Andreas Abecker, Ralph Bergmann,
Wolfgang Wilke: Einsatz von Data Mining für die Insolvenzprognose
beim Schweizerischen Bankverein. Studie von DFKI und Universität
Kaiserslautern im Auftrag der SBV AG, Basel. 1995.
Since February 1995, he is with the German Research Center for Artificial
Intelligence (DFKI GmbH ) in
Kaiserslautern. In the DFKI Intelligent
Engineering Systems department, he worked on knowledge representation
(description logics, constraints) and knowledge evolution (theory revision,
data mining) issues in the areas of technical configuration, production planning,
and knowledge-based scheduling.
Since 1996, he is a member of the DFKI Knowledge Management department
. As a researcher in the KnowMore project
(Knowledge Management for Learning Organizations) and as project leader of
the DFKI part of the European (ESPRIT) KNOWNET project (Knowledge
Management with Intranet technologies), he investigated organizational, methodological,
and technological issues for building Organizational Memories. Special emphasis
is laid upon the integration of collaboration and coordination technologies
(groupware, workflow), document management, and formal knowledge processing
(ontologies and metadata for conceptual information retrieval). Since July
2000, he is the Project Director of the European R&D projectDECOR(Delivery of Context-Sensitive
Since he is six years old, he practices as a dilettant :-) with more or
less success several kinds of sports (like apparatus gymnastics, jogging,
squash, and tennis) and does some honorary work for the gymnastic club in
the village he stems from, the Turnverein
Bierbach 1905 e.V. Currently he was a member of the team organizing the
German National Championships in Short Distance Orienteering in 2002 ( DKM-2002 ).
Agent-Mediated Knowledge Management
Business-Process Oriented Knowledge Management
Weakly-Structured Business Processes for Knowledge Management
Knowledge Representation for Expert Systems and Corporate Memories
Maintenance of Declarative Knowledge: My main work in the DFKI
project VEGA was to investigate formally well-founded methods for the evolution
of declarative knowledge bases. This can be seen as a cooperation of KB exploration
and KB validation algorithms. The field of Theory Refinementseems
to be closely related. (1995-97).
Configuration: Together with Holger Wache and Harald Meyer auf'm
Hofe, we investigate use of logic-based knowledge-representation and inference
to tackle the AI problem class configuration. There remains a lot of work
until we have well-founded and efficient methods for real real-world
Constraints: I initiated and co-organized the 1. DFKI Workshop
on Constraint-Based Problem Solving (1996). More about the topic can be found
under the address of Harald Meyer auf'm Hofe
Description Logics: As a student, I worked on tailoring logic-based
knowledge representation approaches to real-world technical domains (DFKI
projects ARC-TEC and TOOCON). This resulted in the hybrid knowledge compilation
laboratory COLAB. Especially, I implemented parts of the TAXON terminological
logic system (1990-94).
Machine Learning and Data Mining
Data Mining Algorithms: I supervised a student work (Karsten
Schnittker) investigating improvements of the relational learning algorithm
RelGeninvented by Michael Sintek
Inductive Logic Programming: Together with Dr. Knut Hinkelmann I
supervised a diploma thesis (Elisabeth Daub) on performance improvements
for Inductive Logic Programming (1995/96).
Genetic Algorithms: I did some work on the GA-based Nearest-Neighbor-Classifier
GIGA which was invented and implemented by Matthias Fuchs
from the University of Kaiserslautern (1995/96).
Hydrology: in an informal cooperation with the University of
Kaiserslautern, Fachgebiet Wasserwirtschaft (Water Resource Management),
we investigate the use of fuzzy-constraints and heuristic search for improving
infiltration models (1996/97).
Engineering of Computer Based Systems (ECBS): in a cooperation
with the University of Karlsruhe, Institut für
Mikrorechner und Automation (IMA), we investigate the use of knowledge
representation and knowledge evolution methods for ECBS (1995/96).