Team

Photo of Sergej  Sizov

Head of the research group Web Science

Prof. Dr. Dr. Sergej Sizov

Building: 24.53
Floor/Room: 01.89
Phone +49 211 81-12387
Fax +49 211 81-12917

Office Hours

By Appointment

Website: www.web-science.eu

International experience

Spring 2012: research stay at the Shanghai Jiao Tong University (APEX Lab), China, in the context of EU FP7 Network of Excellence NET2

Summer 2009: research stay at Yahoo! Research Barcelona, Spain, in the context of EU FP7 Integrated Project WeKnowIt

2006-2010: networking and research activities in 5 EU FP6/FP7 research projects, collaboration with partners from 12 countries

 

 

Recent Roles

  •  General Chair of ESSIR 2011 - 8th European Summer School on Information Retrieval
  •  Co-Director ACM SIGWEB - Special Interest Group on Hypertext, Hypermedia and the Web (publicity Europe)
  •  WebScienceTrust network - co-investigator, Chief Editor of the "Handbook of Web Science" (Springer)
  •  PhD Committee member at the Dept. of Computer Science, University of Koblenz

 

 

Workshop/Conference organization

General Chair of the International Workshop on DETecting and Exploiting Cultural diversiTy on the Social Web (DETECT'11, in conjunction with CIKM 2011)

Program Chair of the Cross-lingual Expert Search (CriES) Pilot Challenge at CLEF 2010

Program Chair des International Workshop on Recommendation and Collaboration (ReColl'08, in conjunction with IUI 2008)

Program Chair des International Workshop on Collaborative Knowledge Management for Web Information Systems (WE.Know'07, in conjunction with WISE'07)

Last but not least, co-organizer in the local team of conferences

  • Informatik 2013: 43rd Annual Symposium of the German Association of Computer Science (GI), Koblenz, Germany, 2013
  • WebSci 2011: 3rd ACM Web Science Conference, Koblenz, Germany, 2011
  • ISWC 2011: 10th International Semantic Web Conference, Bonn, Germany, 2011

 

 

Publications

undefinedZu allen Publikationen (chronologisch)

Publikationen (nach Themen)

 

Web Science


Collaborative filtering under user uncertainty

Kevin Jasberg and Sergej Sizov:
(Titel)
Recsys 2016, 10th ACM Conference on Recommender Systems, Boston, USA, 15th-19th September 2016
(Submitted)

Sergej Sizov:
Assessment of Rating Prediction Techniques under Response Uncertainty
Proceedings of the 8th International ACM Web Science Conference, Hannover, Germany, Mai 22-25, 2016, pp. XX
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Cross-lingual Retrieval

Philipp Sorg and Philipp Cimiano and Antje Schultz and Sergej Sizov:
Overview Of The Cross-lingual Expert Search (CriES) Pilot Challenge
CLEF 2010 LABs and Workshops, Notebook Papers, 22-23 September 2010, Padua, Italy
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Philipp Cimiano and Antje Schultz and Sergej Sizov and Philipp Sorg and Steffen Staab:
Explicit Versus Latent Concept Models For Cross-Language Information Retrieval
IJCAI 2009, Proceedings of the 21st International Joint Conference on Artificial Intelligence, Pasadena, California, USA, July 11-17, 2009, pp. 1513-1518
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Information Retrieval & Web Science

Duwaraka Murugadas and Sergej Sizov:
Do It Yourself Diagnosis. A Study on Acquiring Health-Related Information Online
Proceedings of the 8th International ACM Web Science Conference, Hannover, Germany, Mai 22-25, 2016, pp. XX
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Sergej Sizov and Andreas Ens: 
EventFolk - Automatische Erkennung Von Ereignissen In Sozialen Medien
Datenbank-Spektrum 10(1), pp. 7-13
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Stefan Siersdorfer and Sergej Sizov: 
Social Recommender Systems For Web 2.0 Folksonomies
HYPERTEXT 2009, Proceedings of the 20th ACM Conference on Hypertext and Hypermedia, Torino, Italy, June 29 - July 1, 2009, pp. 261-270
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Olaf Görlitz and Sergej Sizov and Steffen Staab:
PINTS: Peer-to-Peer Infrastructure for Tagging Systems
7th International Workshop on Peer-to-Peer Systems (IPTPS), Tampa Bay, USA, 2008

Lawrence D. Bergman and Jihie Kim and Bamshad Mobasher and Stefan M. Rüger and Stefan Siersdorfer and Sergej Sizov and Markus Stolze:
International Workshop On Recommendation And Collaboration (ReColl 2008)
Proceedings of the 2008 International Conference on Intelligent User Interfaces, January 13-16, 2008, Gran Canaria, Canary Islands, Spain, pp. 439
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Bernhard Schueler and Sergej Sizov and Steffen Staab and Duc Thanh Tran:
Querying For Meta Knowledge
Proceedings of the 17th International Conference on World Wide Web, WWW 2008, Beijing, China, April 21-25, 2008, pp. 625-634
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Sergej Sizov and Stefan Siersdorfer:
Restrictive Methods and Meta Methods for Themati-cally Focused Web Search
In: Handbook of Research on Web Information Systems Quality. Idea Group, 2007

Stefan Siersdorfer and Sergej Sizov and Paul Clough:
Know The Right People? Recommender Systems For Web 2.0
LWA 2007: Lernen - Wissen - Adaption, Halle, September 2007, Workshop Proceedings, pp. 330-337

Stefan Siersdorfer and Sergej Sizov:
Automatic Document Organization In A P2P Environment
Advances in Information Retrieval, 28th European Conference on IR Research, ECIR 2006, London, UK, April 10-12, 2006, Proceedings, pp. 265-276
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Sergej Sizov:
Automatic Generation of Thematically Focused Portals from Web Data. PhD Thesis
University of the Saarland, Dept. of Computer Science, Saarbruecken, Germany, 2005
Nominated for the Klaus Tschira Award 2006

Steffen Staab and Thomas Franz and Olaf Görlitz and Carsten Saathoff and Simon Schenk and Sergej Sizov:
Lifecycle Knowledge Management: Getting The Semantics Across In X-Media
Foundations of Intelligent Systems, 16th International Symposium, ISMIS 2006, Bari, Italy, September 27-29, 2006, Proceedings, pp. 1-10
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Sergej Sizov and Martin Theobald and Stefan Siersdorfer and Gerhard Weikum and Jens Graupmann and Michael Biwer and Patrick Zimmer:
The BINGO! System For Information Portal Generation And Expert Web Search
CIDR 2003
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Sergej Sizov and Klaus Meier and Gerhard Weikum:
HIP: Intelligente Suche Nach Fachinformationen Für Das Handwerk
INFORMATIK 2003 - Innovative Informatikanwendungen, Band 2, Beiträge der 33. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 29. September - 2. Oktober 2003 in Frankfurt am Main, pp. 268-273

Sergej Sizov and Jens Graupmann and Martin Theobald:
From Focused Crawling To Expert Information: An Application Framework For Web Exploration And Portal Generation
VLDB 2003, pp. 1105-1108
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Martin Theobald and Stefan Siersdorfer and Sergej Sizov:
BINGO! Ein Thematisch Fokussierender Grawler Zur Crawler Zur Generierung Personalisierter Ontologien
Informatik bewegt: Informatik 2002 - 32. Jahrestagung der Gesellschaft für Informatik e.v. (GI), 30. September - 3.Oktober 2002 in Dortmund, pp. 146-150

Sergej Sizov and Stefan Siersdorfer and Martin Theobald and Gerhard Weikum:
The BINGO! Focused Crawler: From Bookmarks To Archetypes
Proceedings of the 18th International Conference on Data Engineering, 26 February - 1 March 2002, San Jose, CA, pp. 337-338
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Sergej Sizov and Martin Theobald and Stefan Siersdorfer and Gerhard Weikum:
BINGO!: Bookmark-Induced Gathering Of Information
3rd International Conference on Web Information Systems Engineering (WISE 2002), 12-14 December 2002, Singapore, Proceedings, pp. 323-332
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Multi-modal Analysis of Social Media

Sergej Sizov, Steffen Staab, and Thomas Franz:
Analysis of Social Networks by Tensor Decomposition.
Handbook of Social Network Technologies and Applications, Springer, 2010, pp. 45-58.
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Stefan Siersdorfer and Sergej Sizov:
Meta Methods For Model Sharing In Personal Information Systems
ACM Trans. Inf. Syst. 26(4)
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Stefan Siersdorfer and Sergej Sizov and Gerhard Weikum:
Goal-oriented Methods And Meta Methods For Document Classification And Their Parameter Tuning
Proceedings of the 2004 ACM CIKM International Conference on Information and Knowledge Management, Washington, DC, USA, November 8-13, 2004, pp. 59-68
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Stefan Siersdorfer and Sergej Sizov:
Restrictive Clustering And Metaclustering For Self-organizing Document Collections
SIGIR 2004: Proceedings of the 27th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Sheffield, UK, July 25-29, 2004, pp. 226-233
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Stefan Siersdorfer and Sergej Sizov:Konstruktion Von Featureräumen Und Metaverfahren Zur Klassifikation Von WebdokumentenBTW 2003, Datenbanksysteme für Business, Technologie und Web, Tagungsband der 10. BTW-Konferenz, 26.-28. Februar 2003, Leipzig, pp. 197-206
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Predictive analytics in E-Commerce

Sergej Sizov and Sarah Piller:
Economic Value of Web Keyword Advertising Campaigns
Proceedings of the 8th International ACM Web Science Conference, Hannover, Germany, Mai 22-25, 2016, pp. XX
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Semantic Web

Sergej Sizov:
GeoFolk: Latent Spatial Semantics In Web 2.0 Social Media
Proceedings of the Third International Conference on Web Search and Web Data Mining, WSDM 2010, New York, NY, USA, February 4-6, 2010, pp. 281-290
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Thomas Franz and Antje Schultz and Sergej Sizov and Steffen Staab:
TripleRank: Ranking Semantic Web Data By Tensor Decomposition
The Semantic Web - ISWC 2009, 8th International Semantic Web Conference, ISWC 2009, Chantilly, VA, USA, October 25-29, 2009. Proceedings, pp. 213-228
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Renata Queiroz Dividino and Sergej Sizov and Steffen Staab and Bernhard Schueler:
Querying For Provenance, Trust, Uncertainty And Other Meta Knowledge In RDF
J. Web Sem. 7(3), pp. 204-219
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Renata Queiroz Dividino and Simon Schenk and Sergej Sizov and Steffen Staab:
Provenance, Trust, Explanations - And All That Other Meta Knowledge
KI 23(2), pp. 24-30
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Olaf Görlitz and Sergej Sizov and Steffen Staab:
Tagster - Tagging-Based Distributed Content Sharing
The Semantic Web: Research and Applications, 5th European Semantic Web Conference, ESWC 2008, Tenerife, Canary Islands, Spain, June 1-5, 2008, Proceedings, pp. 807-811
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Bernhard Schueler and Sergej Sizov and Steffen Staab:
Management Of Meta Knowledge For RDF Repositories
Proceedings of the First IEEE International Conference on Semantic Computing (ICSC 2007), September 17-19, 2007, Irvine, California, USA, pp. 543-550
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Thomas Franz and Sergej Sizov and Steffen Staab:
Computer Mediated Communication and Semantic Environments
In: Semantic Work Environments. Idea Group, 2007

Stefan Siersdorfer and Sergej Sizov and Paul Clough:
Know The Right People? Recommender Systems For Web 2.0
LWA 2007: Lernen - Wissen - Adaption, Halle, September 2007, Workshop Proceedings, pp. 330-337

Sergej Sizov:
What Makes You Think That? The Semantic Web's Proof Layer
IEEE Intelligent Systems 22(6), pp. 94-99
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Sergej Sizov and Steffen Staab:
Problem Resolution: from Individual Cases to Systematic Expert Knowledge.
8th European Conference on Case-Based Reasoning (ECCBR), Work-shop on Textual Case-Based Reasoning (TCBR), Ölüdeniz, Turkey, 2006

http://dblp.uni-trier.de/rec/bibtex/conf/ecir/SiersdorferS06  http://dx.doi.org/10.1007/11735106_24
Stefan Siersdorfer and Sergej Sizov:
Automatic Document Organization In A P2P Environment
Advances in Information Retrieval, 28th European Conference on IR Research, ECIR 2006, London, UK, April 10-12, 2006, Proceedings, pp. 265-276
Download PDF

  
Sergej Sizov:
Automatic Generation of Thematically Focused Portals from Web Data. PhD Thesis
University of the Saarland, Dept. of Computer Science, Saarbruecken, Germany, 2005
Nominated for the Klaus Tschira Award 2006

Sergej Sizov and Anja Theobald and Gerhard Weikum:
Ähnlichkeitssuche Auf XML-Daten
Datenbanksysteme in Büro, Technik und Wissenschaft (BTW), 9. GI-Fachtagung, Oldenburg, 7.-9. März 2001, Proceedings, pp. 364-383

http://dblp.uni-trier.de/rec/bibtex/journals/dbsk/SizovTW01  
Sergej Sizov and Anja Theobald and Gerhard Weikum:
Ähnlichkeitssuche Auf XML-Daten
Datenbank-Spektrum 1, pp. 59-67

Lectures

Recent Talks

WSDM 2010:
GeoFolk: Latent Spatial Semantics in Web 2.0 Social Media

Hypertext 2009:
Social Recommender Systems for Web 2.0 Folksonomies

FGIR 2008:
Thematically Focused Search in Web 2.0 Folksonomies

PrOPr 2007:
Provenance in Semantic Web Applications

LWA 2007:
Know the Right People? Recommender Systems for Web 2.0

ECIR 2006:
Automatic Document Organization in a P2P Environment

ECCBR 2006:
Problem Resolution: from Individual Cases to Systematic Expert Knowledge

Text mining, Ontologies and NLP in Biomedicine:
Automatic Learning and Populating Ontologies from Web Data

 

Memberships

Editorial: Journals

  • Reviewer of the Journal of Web Semantics (JWS), 2008-2011
  • Editorial Board of the Semantic Web Journal, 2011
  • Reviewer of the Journal of Information Technology & Tourism (JITT), 2010-2011
  • Reviewer of the Journal on Social Network Analysis and Mining (SNAM), 2010-2011
  • Reviewer of IEEE Internet Computing, 2010
  • Reviewer of ACM Transactions on the Web (ACM TWEB), 2008-2009
  • Reviewer of the International Journal of Metadata, Semantics, and Ontologies (IJMSO), 2007-2010
  • Reviewer of IEEE Transactions on Knowledge and Data Engineering (TKDE), 2009
  • Reviewer of the International Journal on Knowledge and Information Systems (KAIS), 2009
  • Reviewer of the IEEE Journal on Selected Areas in Communications (JSAC), 2006

Editorial: Conferences

  • PC Member of the International Semantic Web Conference (ISWC 2008-2010)
  • PC Member of the European Semantic Web Conference (ESWC 2008-2011)
  • PC member of the 19th International World Wide Web Conference (WWW 2010)
  • PC Member of the International Conference on Ontologies, Databases, and Applications of Semantics (ODBASE 2007-2009)
  • PC member of the International Conference on P2P, Parallel, Grid, Cloud and Internet Computing (3PGCIC 2010)
  • PC member of the European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML/PKDD 2009)
  • PC Member of the International Conference on Knowledge Discovery (ICKD 2009)
  • PC Member of the IEEE International Conference on P2P Computing (P2P 2009)
  • PC Member of the International Conference on Knowledge Discovery and Information Retrieval (KDIR 2009)
  • PC Member of the International Conference on Database and Expert Systems Applications (DEXA 2007-2009)
  • PC Member of the 16th European Conference on Information Systems (ECIS'08)
  • PC Member of the International Conference on Semantic and Digital Media Technologies (SAMT'07)
  • PC Member of the Multi-Conference on Computer Science in Economics (MKWI'08)
  • PC Member of the 13th International Conference on Parallel and Distributed Systems (ICPADS'07)
  • Peer Reviewer for the 16th Intl. Symposium on Methodologies for Intelligent Systems (ISMIS'06)
  • PC Member of the 1st Intl. Conference on Semantics and Digital Media Technology (SAMT'06)
  • PC Member of the 12th Intl. Conference on Cooperative Information Systems (CoopIS'04)
  • PC Member of the 29th Intl. Conference on Very Large Data Bases (VLDB'03)

Editorial: Workshops

  • PC Member of Springer post-proceedings of the International Workshop on Mining Ubiqitous and Social Environments" (MUSE 2010)
  • PC Member of the Workshop on Uncertainty Reasoning for the Semantic Web (URSW) 2007-2010
  • PC Member of the 4th Intl. Workshop on Databases, Information Systems and Peer-to-Peer Computing (DBISP2P) 2006-2008
  • PC Member of the Semantic Search Workshop (SemSearch), 2008-2011
  • PC Member of the International Workshop 'Bridging the Gap between Semantic Web
  • and Web 2.0' (SemNet'07) at the 4th European Semantic Web Conference (ESWC'07)
  • PC Member of the IEEE Symposium on Computers and Communications (ISCC'06), Workshop on Distributed Agent-based Retrieval Tools (DART'06)

EU Evaluations

  • Expert Evaluator of the 6th EU Framework Programme (Priority 2 - Information Society Technologies, Call 5), 2005
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