I joined the Department of Applied Informatics at AAU Klagenfurt as a full professor in 2017. Before that, from 2008 to 2017, I was a full professor of Computer Science at TU Dortmund, Germany.
My main research theme is related to the application of intelligent system technology to practical problems and the development of methods for building knowledge-intensive software applications.
Generally, my research interest is broad and I have been working on a number of topics over the years, including recommender systems technology, knowledge-based systems development, constraint-based systems, semantic web applications and web mining, special topics in operations research and applications of AI planning as well as on specific software engineering problems in the area of the development and debugging of declarative programs.
Among others, my research has been published in IEEE TKDE, Artificial Intelligence, JAIR, UMUAI, ACM TIST, ACM TiiS, Journal of Web Semantics, J of Human Computer Studies, Journal of Systems and Software, Automated Software Engineering, IEEE Intelligent Systems, Annals of Operations Research, and in the proceedings of IJCAI, AAAI, RecSys, ICDM or ISWC.
Between 2003 and 2008, I was a co-founder, technical director and later managing director of a startup company that created an award-winning software tool for the development of interactive sales applications.
Boards & Reviews
Editorial board member of User Modeling and User-Adapted Interaction (Springer)
Editorial board member of Journal of Applied Intelligence (Springer)
Editorial board member of Journal of Information Technology & Tourism (Springer)
Review board member of International Journal of Electronic Commerce (M. E. Sharpe)
Other journal review activity:
Management Information Systems Quarterly,
Data Mining and Knowledge Discovery (Springer),
Artificial Intelligence (Elsevier),
IEEE Transactions on Knowledge and Data Engineering,
International Journal of Human Computer Studies (Springer),
Journal of Data & Knowledge Engineering (Elsevier),
ACM Transactions on Information Systems,
Journal of Artificial Intelligence Research,
Journal of Information Systems Research,
Journal of Management Information Systems,
European Journal of Information Systems,
Information and Management (Springer),
ACM Computing Surveys,
IEEE Intelligent Systems,
Journal of Machine Learning Research,
User Modeling and User-Adapted Interaction (Springer),
Electronic Commerce Research and Applications (Elsevier),
Information Processing and Management (Elsevier),
Knowledge and Information Systems,
Annals of Tourism Research (Elsevier),
ACM Transactions on the Web,
ACM Transactions on Intelligent Systems and Technology,
ACM Transactions on Interactive Intelligent Systems,
IEEE Transactions on Parallel and Distributed Systems,
Information Processing Letters (Elsevier),
Knowledge-Based Systems (Elsevier),
Journal of Intelligent Information Systems (Springer),
Information Systems (Elsevier),
Information Sciences (Elsevier),
Advanced Engineering Informatics (Elsevier),
Journal of Computers and Operations Research (Elsevier),
IEEE Transactions on Systems, Man and Cybernetics,
Expert Systems with Applications (Elsevier),
Empirical Software Engineering (Springer),
Journal of Heuristics (Springer),
Big Data Research (Elsevier),
Journal of Web Engineering,
Journal of Software: Evolution and Process,
Journal of Mathematical Modelling and Algorithms (Springer),
Engineering Applications of Artificial Intelligence (Elsevier),
AI Communications (IOS Press),
Journal of Computer-Mediated Communication (Elsevier),
Intl. Journal of Mass Customization,
Data Mining and Knowledge Discovery (Wiley),
Journal of Information Science,
Journal of Data Semantics (Springer),
Journal of New Generation Computing (Springer),
Science of Computer Programming (Elsevier),
IEEE Transactions on Automation Science and Engineering,
Artificial Intelligence in Engineering, Design, and Manufacturing (Cambridge University Press),
Künstliche Intelligenz (Springer),
International Journal of Production Research (Taylor and Francis),
Intl. Journal on Artificial Intelligence Tools,
Journal of Ambient Intelligence and Humanized Computing (Springer),
Computers & Industrial Engineering (Elsevier),
Fundamenta Informaticae (IOS Press),
International Journal of Semantic Web and Information Systems,
International Journal of Information Technology and Decision Making,
Signal Processing: Image Communication (Elsevier),
i-com (de Gruyter)
PC membership for conferences:
(Senior) PC member of WWW (2014-2018)
(Senior) PC member of the ACM Recommender Systems conference (2007-2018), member of the steering committee (since 2011)
(Senior) PC member of UMAP 2010-2018 (User Modeling, Personalization and Adaptation),
PC member of the 8th Intl. AAAI Conference on Weblogs and Social Media ICWSM 2014, 2017, 2018
PC member of ACM Hypertext 2017, 2018
Reviewer for CHI 2017
PC member of KI 2017
PC member FLAIRS 2017, 2018
PC member KDD 2016
PC member WSDM 2016
PC member IJCAI 2003, 2016, IJCAI/ECAI 2018
PC member ECAI/PAIS 2014, 2016
PC member ENTER 2016-2018
the 2009 to 2016 International Conference on Electronic Commerce and Web Technologies (EC-Web)
Senior PC member of the 2013, 2014 and 2018 ACM SAC Track on Recommender Systems,
PC member of the IEEE Conference on Business Informatics 2013-2015
PC member of WEBIST’14
PC Member WI/IAT 2004, 2008, 2012-2014,
the 2010 Extended Semantic Web Conference (ESWC),
the 2009 International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES’2009),
the 2009 International MCETECH Conference on e-Technologies,
2007 Intl. Conference on Knowledge Management Conference,
European Conference on AI (ECAI’02),
Intl. Conference on Principles and Practice of Constraint Programming (CP’2001),
Intl. Conference on eXtreme Programming and Agile Processes in Software Engineering (XP’03),
Reviewer for various other books, conferences and workshops such as the
Workshop on the Principles of Diagnosis DX’14 and DX’17
ACM RecSys Workshop on Recommenders in Tourism (RecTour 2016, 2017),
Joint Workshop on Interfaces and Human Decision Making for Recommender Systems (IntRS 2014-2017)
ACM RecSys 2017 workshop on Workshop on Temporal Reasoning in Recommender Systems
International Workshop on Intelligent and Personalized Human-Computer Interaction (ABIS 2015-2016),
2nd International Workshop on Personalization and Recommender Systems in Financial Services, Bari (Italy), 2016
ICDM 2015 and SIGIR 2014 Workshops on Social Media Retrieval and Analysis (SoMeRA 2014/2015),
Recommender Systems Challenge of ACM RecSys 2015
the Workshops on Social Recommender Systems (SRS 2013, SRS 2014, SRS 2015) at WWW 2013/2014/KDD2015,
ACM RecSys 2014 Workshop on Recommender Systems Evaluation: Dimensions and Design (REDD 2014)
the Linked Open Data-enabled Recommender Systems Challenge at EWSC 2014,
the ACM RecSys 2013 workshops on Human Decision Making and on Reproducibility and Replication in Recommender Systems Evalaution,
the ACM RecSys 2012 workshops on Human Decision Making in RS, Recommendation Utility Evaluation, the RecSys Data Challenge, and the Doctoral Consortium,
the 20th International Symposium on Methodologies for Intelligent Systems (ISMIS 2012),
the SASWEB 2011 and 2012 International Workshops on Semantic Adaptive Social Web at UMAP,
the IUI 2011 AND IUI 2012 Workshop on Context-aware Retrieval and Recommendation (CaRR),
the ICEIS 2011 to 2013 Workshop on Information Value Management,
the ICML 2012 Workshop on on Learning from User-generated Content,
the Decisions and CAMRa Workshops at ACM RecSys 2011,
the 2011 to 2013 DEXA workshop on Recommender Systems meet Databases,
the CAiSE 2011 and 2012 Ontose workshops,
the ISWC 2011 Workshop on Semantic Personalized Information Management,
the ECAI’10 Workshop on Intelligent Engineering Techniques for Knowlege Bases,
the Workshop on Recommender Systems and Personalized Retrieval (RSPR 2008),
Workshop on CSP Techniques with Immediate Application at CP’04
Organizing committee, Programme committee member or reviewer for Intl. Workshop on Configuration CWS 2017 (Paris), the workshop at CP 2016 (Toulouse), CWS 2015 (Vienna), CWS 2014 (Novi Sad), CWS 2013 (Vienna) and at ECAI’2000, IJCAI’2001, ECAI’2002, IJCAI’2003, ECAI’2004; IJCAI’05, ECAI’06, AAAI’07, ECAI’2008, ECAI’2010, IJCAI’2011, PC-member of Recommender Workshops at ECAI’08 and ECAI’06
Co-organisation of scientific events and guest-editorships
Artificial Intelligence in Design, Cambridge, UK, 2002.
Workshop on Configuration at IJCAI’01, Seattle, 2001.
Web Intelligence Conference, Maebashi, Japan, 2001.
Annual German Conference on Artificial Intelligence, Vienna, 2001.
Workshop “Planen und Konfigurieren”, Vienna, 2001.
Intl. Conference on Industrial & Engineering Applications of Artificial Intelligence & Expert Systems, Budapest, Hungary, 2001.
Intl. Conference on Software Engineering and Knowledge Engineering, Chicago, USA, 2000.
Talk at “Configuration Workshop”, European Conference on Artificial Intelligence, Berlin, 2000.
World Manufacturing Congress, Durham, UK, 1999.
Workshop “Planen und Konfigurieren”, Würzburg, 1999.
Intl. Conference on Artificial Intelligence and Planning Systems AIPS’98, Pittsburgh, 1998.
Other talks & presentations
Invited talk on recommender systems at Trinity College Dublin, Ireland, February 2018.
Talk on configuration systems engineering at Laboratoire d’informatique de Paris 6, France, April 2015.
Talk on recommender systems at UFRGS Institute of Informatics, Porto Alegre, Brazil, March 2015.
Invited presentation on recommender systems at the Dagstuhl seminar on Preference Learning, Dagstuhl Castle, April, 2014.
Invited talk and research visit at Universidad Adolfo Ibanez, Santiago, Chile, December 2013.
Invited guest lecture talk on spreadsheet debugging and research visit at TU Graz, Austria, October 2012.
Talk on recommender systems at University of Bonn, Germany, September 2012.
Colloquium talk on personalized information services at RWTH Aachen, Germany, October 2011.
Talk on recommender systsems and sales advisory systems at the Free University of Bozen/Bolzano, Italy, December 2010.
Presentations on recommender systems technology for industrial audience, Dortmund, December 2009 and May 2010.
Talk on recent developments in recommender systems at University of Passau, Germany, April 2009
Presentation at SAP Research Labs, Karlsruhe, 2008
Talk on new approaches for building intelligent software applications, Technical University Graz, Austria, Fall, 2007.
Talk on recommender systems in e-Tourism, University Innsbruck, Austria, 2007.
Talk on intelligent electronic services, University Dortmund, Germany, Fall, 2006.
Invited talk on business process improvement and IT (case study) on “Mass-customization in practice”, Klagenfurt, 2006.
Talk on knowledge-based product configuration on International Mass Customization Meeting, Klagenfurt, 2005.
Talk on recommender system technology on workshop on “New results in planning, scheduling, and configuration, Ulm, Germany, 2004.
Various presentations and talks on “Interactive Sales Advisory” for ConfigWorks GmbH (2003-2008)
February 2011 to April 2012: Vice Dean of the Department of Computer Science in Dortmund.
Development of a new business-oriented specialization area curriculum in Computer Science at TU Dortmund, 2008; responsible for student recruitment activities for the department between 2009 and 2011.
From 2006 to 2008 Programme Manager for Informatics/Computer Science at University Klagenfurt.
Chair of the curriculum committee “Informatics”; member of curriculum committee “Information technology” until 2008 at University Klagenfurt.
2007-2008 Vice-chair of the Institute of Applied Informatics at University Klagenfurt.
Until 2004: Member of the university committee responsible for the Computer Science curriculum, responsible for administrative and legal procedures in the context of the establishment of a new Computer Science curriculum in Klagenfurt
Responsible for management and co-ordination of teaching activities of the Computer Science institutes from 2000 to 2003 in Klagenfurt.
Academic committees and other reviewing activities
Member of various appointment promotion committees, external reviewer for academic promotions at international universities.
External PhD examiner or evaluator for different universities:
Charles University of Prague
Université de Nancy
University College Dublin
University of South Australia
University of Bari Aldo Moro
Free University of Bolzano
University of Aalborg
University of Passau / INSA Lyon
University of Tampere
Universidade Federal do Rio Grande do Sul, Porto Alegre
TU Graz University
University Lille, IESEG School of Management
Reviewer for research proposals for
the German Research Foundation (DFG)
the Austrian Science Fund (FWF)
the Austrian Research Promotion Agency (FFG)
the Austrian Federal Ministry of Science and Research
the DAAD (German Academic Exchange Service)
the Alexander von Humboldt Foundation
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
the Netherlands Organisation for Scientific Research and
the Swiss National Science Foundation
the Israel Science Foundation
Member of the Faculty Council of the Department of Computer Science at TU Dortmund (2010-2012, 2014-2016).
Recruitment of Indian students in Hyderabad, 2007
Debugging of Spreadsheet Programs (2015-2018). Funded by DFG and Austrian Science Fund. Joint project with TU Graz, Austria, and Alpen-Adria University Klagenfurt, Austria. Proposer, project manager for German partner and principal researcher
Exquisite – Excel Quality Suite (2011-2014). Funded by the state of North Rhine-Westphalia (Germany) through the European Regional Development Fund (EU). Proposer, project manager and principal researcher
iKnow: Innovation and Knowledge Management towards eStudent Information System (2010-2012). Funded in the TEMPUS Programme (EU). Consulting / Quality Control
Entwicklung eines Systems für die integrative Lebensmittelüberwachung im Verbund amtlicher und privatwirtschaftlicher Institutionen (2009-2012). Funded by the state of North Rhine-Westphalia (Germany) through the European Regional Development Fund (EU). Co-proposer and researcher
C2DSAS: Command and Control Decision Support and Advisor Services (2007-2009). Funded by FFG / Kiras Programme (Austria). Proposer, prinicpal researcher, project manager (until 2008); researcher 2008-2009
V-Know: Collaborative Knowledge base debugging and refinement. (2007-2010). Individual project – funded by FWF (Austria). Proposer, prinicpal researcher and project manager / until 2008
CDM@AIRPORTS: Intelligent decision management in the context of airport operations (2004-2006). Funded by FFG (Austria). Principal investigator and project leader for partner University Klagenfurt
ALLRIGHT: Automated product data extraction from web sources (2005-2007). Funded within Austrian FIT-IT Programme. Project application and preparation, principal researcher and technical lead for ConfigWorks GmbH.
etPlanner: Project funded by the Austrian Network for e-tourism on intelligent recommenders in e-tourism, mobile services, and user interface adaptation (2005- 2008). Research, technical consulting on behalf of project partner ConfigWorks GmbH.
KOBA4MS – Advanced techniques for rapid development of knowledge-based advisory systems (2004-2006). Funded by FFF (Austria). Researcher, technical consulting for ConfigWorks GmbH.
TECTRANS: Project aiming at transferring mass-customization technology into industrial practice (2005-2006), funded by KWF (Austria). Researcher, responsible for industrial case study
MACUS: Interdisciplinary project on mass customization, variety steering, and corresponding IT support (2003-2005). Funded by Österreichische Nationalbank. Researcher.
CAWICOMS: Customer-Adaptive Web Interfaces for Configuration Systems with Multiple Suppliers (1999 – 2003). Funded by European Commission. Principal investigator, Subproject and work-package leader