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Proceedings (Editorship)

Book Articles

Reviewed Publications in Journals

Reviewed Publications in Conferences / Workshops


  • Magnus Knuth,  Olaf Hartig,  Harald Sack,
    Scheduling Refresh Queries for Keeping Results from a SPARQL Endpoint Up-to-Date, Proc. of the 15th International Conference on Ontologies, DataBases, and Applications of Semantics (ODBASE 2016) (to be published) [pdf, local copy] - (extended version at archivx.org, extended version local copy pdf)
  • H. Agt-Rickauer, J. Waitelonis, T. Tietz, H. Sack,
    Data Integration for the Media Value Chain, 15th Int. Semantic Web Conference (ISWC 2015), Poster track (to be published) [pdf, local copy]
  • T. Tietz, J. Waitelonis, J. Jäger, H. Sack,
    refer: a Linked Data based Text Annotation and Recommender System for Wordpress, 15th Int. Semantic Web Conference (ISWC 2015), Demo track (to be published) [pdf, local copy]
  • T.Tietz, J. Jäger, J. Waitelonis, H. Sack,
    Semantic Annotation and Information Visualization for Blogposts with refer, Proc. of 2nd. Int. Workshop on Visualization and Interaction for Ontologies and Linked Data 2016, co-located with ISWC 2016. (to be published) [pdf, local copy]
  • J. Waitelonis, H. Jürges, H. Sack,
    Don't compare Apples to Oranges - Extending GERBIL for a fine grained NEL evaluation, Proc. of 12th Int. Conference on Semantic Systems (SEMANTICS 2016), ACM New York, NY, USA, 2015. [local copy, pdf] (to be published)
  • M. Dojchinovski, D. Reddy, T. Klegr, T. Vitvar, H. Sack,
    Crowdsourced Corpus with Entity Salience Annotations, 10th Int. Language Resources and Evaluation Conference (LREC 2016), 2016, pp. 3307-3311. [local copy, pdf
  • D. Filipiak, H. Agt-Rickauer, C. Hentschel, A. Filipowska, H. Sack,
    Quantitative Analysis of Art Market Using Ontologies, Named Entity Recognition and Machine Learning: A Case Study, Proc. of 19th Int. Conf. on Business Information Systems 2016 (BIS 2016), Springer LNBIP 255, pp. 79-90, 2016. [*Best Paper Award*, local copy, pdf
  • M. Knuth, J. Waitelonis, H. Sack,
    I am a Machine, I want to understand Web Media!, Proc. of 16th Int. Conf. of Web Engineering 2016 (ICWE 2016), Springer LNCS 9671, pp. 467-475, 2016. [local copy, pdf]  
  • J. Waitelonis and H. Sack, 
    Named Entity Linking in #Tweets with KEA, 6th workshop on 'Making Sense of Microposts' (Microposts 2016), Named Entity Recognition and Linking (NEEL) Challenge, co-located with the 25th Int. World Wide Web Conference (WWW 2016). [local copy, pdf]  (to be published, *Best Submission* of the NEEL Challenge 2016)
  • J. Waitelonis, M. Plank, H. Sack,
    TIB|AV-Portal: Integrating Automatically Generated Video Annotations into the Web, in Proc. of 20th International Conference on Theory and Practice of Digital Libraries (TPDL 2016), [local copy, pdf] (to be published)




  • N. Steinmetz, M. Knuth, H. Sack:
    Statistical Analyses of Named Entity Disambiguation Benchmarks, Workshop on free, open, interoperabel, and multilingual NLP for DBpedia and DBpedia for NLP, co-located with the 12th International Semantic Web Conference 2013, October 21-25, 2013, Sidney, Australia, CEUR Workshop Proceedings Vol. 1064. [local copy, pdf]
  • N. Steinmetz, H. Sack:
    About the Influence of Negative Context, Proc. of 6th IEEE International Conference on Semantic Computing (ICSC 2013), September 16-28, 2013, Irvine, California, USA, pp. 134-141 [local copy, pdf].
  • T. Bergmann, S. Bunk, J. Eschrig, C. Hentschel, M. Knuth, H. Sack, R. Schueler:
    Linked Soccer Data, Proc. of 9th International Conference on Semantic Systems (I-SEMANTICS '13), Posters & Demos Track, September 4-6, 2013, Graz, Austria, CEUR Workshop Proceedings Vol. 1026, pp. 25-29 [local copy, pdf] Best Poster Award at i-SEMANTICS/i-KNOW 2013
  • Ch. Hentschel, I. Blümel, H. Sack:
    Automatic Annotation of Scientific Video Material based on Visual Concept Detection, Proc. of 13th Int. Conf. on Knowledge Management and Knowledge Technologies, Sep, 4-6, 2013, Graz, Austria, CM, New York, NY, USA, , Article 16, DOI=10.1145/2494188.2494213 [local copy, pdf]
  • N. Steinmetz and H. Sack:
    Semantic Multimedia Information Retrieval Based on Contextual Descriptions, in Proc. of 10th Extended Semantic Web Conference (ESWC 2013) - Semantics and Big Data, May 26-30, 2013, Montpellier, France, Lecture Notes in Computer Science LNCS 7882, pp. 283--396, ISBN: 978-3-642-38287-1 [local copy, pdf]







  • S. Linckels , H. Sack, Ch. Meinel:
    Retrieval Optimization of Pertinent Answers for NL Questions with the E-Librarian Service,
    in Proc. of 6th International Semantic Web Conference (ISWC 2007), Busan, Korea, 2007.
    in a more explicit version the paper also appears at Service Matchmaking and Resource Retrieval (SMR2) in the Semantic Web Workshop at ISWC+ASWC 2007. 
  • S. Repp , J. Waitelonis, H. Sack, Ch. Meinel:
    Segmentation and Annotation of Audiovisual Recordings based on Automated Speech Recognition ,
    in Proc. of 8th Int. Conf. on Intelligent Data Eng. and Automated Learning (IDEAL 2007), Springer LNCS 4881, Birmingham, UK, December 2007. pp. 620 - 629, ISBN: 978-3-540-77225-5. 
  • M. Quasthoff , H. Sack, Ch. Meinel:
    Why HTTPS is Not Enough -- A Signature-Based Architecture for Trusted Content on the Social Web,
    in Proc. of the 2007 IEEE / WIC /ACM Int. Conf. on Web Intelligence (WI 2007), IEEE Press, Silicon Valley, USA, November 2007. pp. 820 - 824. ISBN: 0-7695-3026-5.
  • R. Landefeld, H. Sack:
    Collaborative Web-Publishing with a Semantik Wiki,
    in Proc. of SABRE Conference on Social Semantic Web (CSSW 2007), Leipzig, 2007. CEUR Workshop Proceedings, ISSN 1613-0073, online http://ceur-ws.org/Vol-301/Paper_2_Landefeld.pdf  
  • C. Beckstein, J. Denzler, M. Fothe, B. König-Ries, H. Sack, and J. Vogel:
    A Reactive Architecture for Ambient E-Learning,
    in Proc. of Towards Ambient Intelligence: Methods for Cooperating Ensembles in Ubiquitous Environments (AIM-CU 2007), 2007.
  • R. Landefeld, H. Sack:
    Maariwa - Ontologie-basiertes Web-Publishing mit einem Semantic Wiki,
    in XML-Tage 2007 Berlin, 2007.
  • H. Sack, J. Waitelonis:
     OSOTIS - kollaborative, inhaltsbasierte Video-Suche,
    in Proc. of 5. e-Learning Fachtagung Informatik, DeLFI 2007, Siegen, Lecture Notes in Informatics, P-111, Köllen, Bonn, 2007, pp. 281--292. 
  • J. Bross, H. Sack:
     Encouraging Participation in Virtual Communities: The "IT-summit-blog" Case ,
    in Proc. of IADIS Int. Conf. e-Society 2007, Lisboa, Portugal, July 2007. pp. 245 - 254, ISBN:978-972-8924-35-5.




  • Ch. Meinel, H. Sack:
    Adapted Variable Reordering for Parity-OBDDs,
    in Proc. of 6th Int. Symposium on Representations and Methodology of Future Computing Technologies (Reed-Muller 2003),Universität Trier, Trier, Germany, 2003, pp. 135-144. [local copy, pdf]



  • Ch. Meinel, H. Sack, V. Schillings:
    IDDS: An Interactive Decentraliced Documentation System
    in Proc. of ACM SIGDOC 2001 Santa Fe, NM, USA, 2001. [local copy, pdf]
  • Ch. Meinel, H. Sack:
    Improving XOR-node Placement for Mod2-OBDD Minimization,
    in Proc. of 5th Int. Workshop on Applications of the Reed-Muller Expansion in Circuit Design (Reed-Muller 2001),Mississippi State University, Starkville, Mississippi, USA, 2001, pp. 51-56. [local copy, pdf]
  • Ch. Meinel, H. Sack:
    A Simple Heuristic for Mod2-OBDD Minimization
    Proc. of IEEE/ACM Int. Workshop of Logic and Synthesis (IWLS2001) Lake Tahoe, CA, USA, 2001, pp. 304-309. [local copy, pdf]



  • Ch. Meinel, H. Sack, C. Stangier:  
    Overcoming Ordering Restrictions for Synthesizing Binary Decision Diagrams,  
    in Proc of 17th NORCHIP '99 Conference,   Oslo, Norway 1999, pp. 52-60. [local copy, pdf]
  • Ch. Meinel, H. Sack:  
    Algorithmic Considerations for Parity-OBDD Reordering,  
    in Proc. of the 1999 IEEE/ACM Int. Workshop on Logic Synthesis (IWLS99), Lake Tahoe, CA, 1999, pp.71-74 and
    Proc. of 4th Int. Workshop on Applications of the Reed-Muller Expansion in Circuit Design (Reed-Muller'99), Victoria, B.C., Canada, 1999, pp. 179-184. [local copy, pdf]



Invited Articles in Journals and other Publications