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PD Dr.-Ing. Cai-Nicolas Ziegler

Institut für Informatik
Albert-Ludwigs-Universität Freiburg
Georges-Köhler-Allee, Geb. 51
79110 Freiburg i. Br., Germany

Work Life

Since May 2011 Department Head for Global Online Product Mgmt., Social Media, and Personalization at PAYBACK GmbH, Munich (leading 5 teams).

Since Feb 2010 lecturer at the University of Freiburg (Privatdozent), upon obtaining the post-doctoral lecture qualification ("venia legendi", Habilitation) from Albert-Ludwigs-Universität Freiburg, Germany.

From 2008 to 2001: Worked as managment and strategy consultant (career level of project leader) at BCG, the Boston Consulting Group.

Worked for Siemens AG, Corp. Research & Technologies, as consultant and researcher from 2005 to 2008.

Education

Studied Computer Science at University of Passau, Germany, from October 1998 to March 2003. Large part of graduate studies passed at Université Laval, Québec. Diploma degree (Dipl.-Inf. Univ.) in March 2003.

Joined the Databases and Information Systems group (DBIS) in Freiburg, headed by Prof. Dr. Georg Lausen, as Ph.D. student and teaching assistant.

Extended research stay at GroupLens, University of Minnesota, MN, USA, working with Professor Joseph A. Konstan and Sean M. McNee on advanced algorithms for recommender systems (see newspaper article).

Defended Ph.D. thesis entitled Towards Decentralized Recommender Systems in June 2005 (committee: Georg Lausen, Joseph A. Konstan, Lars Schmidt-Thieme and Günter Müller).

Miscellaneous

Here is a link to a PDF file with my academic publications.

There are a number of interviews in print journals, the most current one being in DDV dialog on Social CRM, in German. Moreover, there is an interview in kress report on Gamification in Social Media. Also on Social Media and Gamification, another interview in one to one.

Somewhat older and on recommender systems rather than on Social Media is the iBusiness interview.

NEW : Collaborative filtering dataset for book ratings released!

Publications

2013

  • Recommending Software Apps in a B2B Context; Cai-Nicolas Ziegler, Alexandru Oprea, Thomas Hornung, Holger Eggs, Georg Lausen; Proceedings of the 2013 IEEE / WIC / ACM International Conference on Web Intelligence (WI '13), November 17-20, 2013, Atlanta, GA, USA.

              Download:  [ Link ]  [ BibTeX ]

  • Evaluating Hybrid Music Recommender Systems; Thomas Hornung, Cai-Nicolas Ziegler, Simon Franz, Martin Przyjaciel-Zablocki, Alexander Schätzle, Georg Lausen; Proceedings of the 2013 IEEE / WIC / ACM International Conference on Web Intelligence (WI '13), November 17-20, 2013, Atlanta, GA, USA.

              Download:  [ Link ]  [ BibTeX ]

  • A Hybrid B2B App Recommender System; Alexandru Oprea, Thomas Hornung, Cai-Nicolas Ziegler, Holger Eggs, Georg Lausen; Proceedings of the 13th Int'l Conference on Web Engineering (ICWE '13), July 08-12, 2013, Aalborg, Denmark.

              Download:  [ Link ]  [ BibTeX ]

  • On Weighted Hybrid Track Recommendations; Simon Franz, Thomas Hornung, Cai-Nicolas Ziegler, Martin Przyjaciel-Zablocki, Alexander Schätzle, Georg Lausen; Proceedings of the 13th Int'l Conference on Web Engineering (ICWE '13), July 08-12, 2013, Aalborg, Denmark.

              Download:  [ Link ]  [ BibTeX ]

  • Social Web Artifacts for Boosting Recommenders: Theory and Implementation; Cai-Nicolas Ziegler; Studies in Computational Intelligence 487, Springer 2013, ISBN 978-3-319-00527-0, pp. 1-187.

              Download:  [ Link ]  [ BibTeX ]

2012

2010

  • Automated Capture of Strategic Knowledge on the Web; Cai-Nicolas Ziegler; Habilitationsschrift, Albert-Ludwigs-Universität Freiburg, February 2010; Freiburg i.Br., Germany.

              Download:  [ PDF ]  [ BibTeX ]

2009

2008

2007

2006

2005

2004

... my Erdös number is 5