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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!
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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.
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.
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.
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.
2012
2010
Automated Capture of Strategic Knowledge on the Web;
Cai-Nicolas Ziegler; Habilitationsschrift, Albert-Ludwigs-Universität Freiburg, February 2010; Freiburg i.Br., Germany.
2009
Fully-Automatic Web Data Extraction; Cai-Nicolas Ziegler; Encyclopedia of Database Systems; Öszu, Tamer, and Liu, Ling (Eds.);
June 2009; Springer Verlag, Heidelberg, Germany.
GUIs for Web Data Extraction; Cai-Nicolas Ziegler; Encyclopedia of Database Systems; Öszu, Tamer, and Liu, Ling (Eds.);
June 2009; Springer Verlag, Heidelberg, Germany.
2008
Tracking Topic Evolution in News Environments;
Maximilian Viermetz, Michal Skubacz, Cai-Nicolas Ziegler, Dietmar Seipel; Proceedings of the 2008 IEEE Conference on Enterprise Computing, E-Commerce, and E-Services (EEE '08),
July 22-24, 2008, Washington, DC, USA.
2007
2006
2005
Towards Decentralized Recommender Systems;
Cai-Nicolas Ziegler; Ph.D. thesis, Albert-Ludwigs-Universität Freiburg, 2005; Freiburg i.Br., Germany.
2004
Taxonomy-driven Computation of Product Recommendations;
Cai-Nicolas Ziegler, Georg Lausen, Lars Schmidt-Thieme; Proceedings of the 2004 ACM International Conference on Information and Knowledge Management (CIKM '04),
November 8-13, 2004, Washington, D.C., USA (acceptance rate: 19%, 59/303).
Semantic Web Recommender Systems;
Cai-Nicolas Ziegler; EDBT 2004 Workshops (PhD, DataX, PIM, P2P&DB, and ClustWeb). Selected and Revised Papers,
March 14-18, 2004, Heraklion, Greece. LNCS 3268.
Semantic Web Recommender Systems;
Cai-Nicolas Ziegler; Proceedings of the Joint ICDE/EDBT Ph.D. Workshop 2004,
March 14-18, 2004, Heraklion, Greece (acceptance rate: 24.4%, 21/86).
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... my Erdös number is 5
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