Hasso-Plattner-Institut für Softwaresystemtechnik
Semantic Technologies

Contact

Prof. Dr. Christoph Meinel

Hasso-Plattner-Institut
an der Universität Potsdam

Tel: +49 0331/5509-222
Fax: +49 0331/5509-325
Mobil: +49 176 10010727
meinel"at"hpi.uni-potsdam.de

Books

Semantic Technologies

In recent years the Semantic Web has emerged as one of the most essential achievements for the future of the World Wide Web (WWW). Semantic Web technology extends the WWW but also enables to improve applications which are related to other fields such as communication, information, knowledge, media, and interaction technologies. Semantic Web provides not just new technologies and tools but also new paradigms and ways of thinking, to make information processing more efficient and more structured.

Our research is focussed on the devolpment and improvement of 'semantically supported multimedia retrieval and search technologies'.

 

Current News

Current Events and Activities

2011

2010

2009

Our group

Left to Right: Nadine Ludwig, Johannes Osterhoff, Dr. Harald Sack, Jörg Waitelonis, Christian Hentschel, Bernhard Quehl
Back row: Nadine Ludwig, Dr. Harald Sack, Jörg Waitelonis, Johannes Hercher
Front row: Haojin Yang, Zalan Kramer, Johannes Osterhoff, Magnus Knuth

Research Team

Teaching

2011/12 (WS):

2011 (SS):

2010/11 (WS):

2010 (SS):

2009/10 (WS):

Projects and Partners

  • AV-Portal Gottfried-Leibnitz-Universität Hannover, project with Technische Informationsbibliothek Hannover (TIB)
  • Semantic Media Explorer (SEMEX)
    The Semantic Media Explorer is a demonstrator that combines the latest media analysis processes to provides optimal access to video content.
  • MEDIAGLOBE Project
    The aim of MEDIAGLOBE is to open and interlink heterogenouse and currently isolated information sources in media archives and broadcasting corporation. Project partners: DEFA-spektrum, Medienbildungsgesellschaft Babelsberg mbH, Blue Order GmbH
  • THESEUS/CONTENTUS Project
    The purpose of CONTENTUS is to develop basic technologies with which to access, archive and search for multi-media cultural assets and works of art.
  • YOVISTO
    Yovisto is a video search engine specialized in academic content. Yovisto's search index is based on the combination of automated content based video analysis with user generated collaborative annotation (collaborative tagging, discussions, and comments). In difference to traditional video search engines, Yovisto enables pinpoint access within video data by providing fine-granular, time-dependent metadata.
  • Semantic Games
    Games with a purpose that are dedicated to create and curate semantic content.

Recent Publications

2012

  • Haojin Yang, Bernhard Quehl and Harald Sack:
    Text detection in video images using adaptive edge detection and stroke width verification, 19th Int. Conf. on Systems, Signals and Image Processing (IWSSIP), IEEE Press, Vienna, Austria, April. 11-13, 2012  (to appear).
  • Johannes Hercher, Marcel Ruhl, Harald Sack:
    Quo vadis nutzergenerierte Metadaten?, Social Media and Web Science, 2. DGI Konferenz, 64. Jahrestagung der DGI, Frankfurt a. M., Mar. 22.-23., 2012, Düsseldorf, Germany Deutsche Gesellschaft für Informationswissenschaft und Informationspraxis, Frankfurt, (to appear). [local copy | citation (BibTex)]

2011

  • Jan Nandzik, Berenike Litz, Nicolas Flores-Herr, Aenne Löhden, Iuliu Konya, Doris Baum, André Bergholz, Dirk Schönfuß, Christian Fey, Johannes Osterhoff, Jörg Waitelonis, Harald Sack, Ralf Köhler, Patrick Ndjiki-Nya:
    "CONTENTUS – Technologies for Next Generation Multimedia Libraries, Automatic multimedia processing for semantic search". In Journal for Multimedia Tools and Applications, Springer (to appear 2011).
  • Nicolas Flores-Herr, Harald Sack, Klaus Bossert:
    Suche in Multimediaarchiven von Kultureinrichtungen. D. Lewandowski (Ed.), Handbuch Internet-Suchmaschinen 2 - Neue Entwicklungen in der Websuche, Akademische Verlagsgesellschaft AKA GmbH, Heidelberg, 2011, pp. 113-140. (ISBN: 978-3-89838-651-7)
  • Nicolas Flores-Herr, Stefan Eickeler, Jan Nandzik, Stefan Paal, Iuliu Konya, Harald Sack:
    Contentus – Next Generation Multimedia Library. L. Heuser & W. Wahlster (Eds.), acatech diskutiert: Internet der Dienste, Springer : Berlin ; Heidelberg, 2011, pp. 67-88. (ISBN 978-3-642-21507-0)
  • Haojin Yang, Maria Siebert, Patrick Lühne, Harald Sack and Christoph Meinel:
    Automatic Lecture Video Indexing Using Video OCR Technology, IEEE Int. Symposium on Multimedia 2011 (ISM 2011), IEEE Press, Dana Point, CA, USA, Dec. 5-7, 2011. [local copy PDF | citation BibTex]
  • Haojin Yang, Maria Siebert, Patrick Lühne, Harald Sack and Christoph Meinel:
    Lecture Video Indexing and Analysis Using Video OCR Technology, 7th Int. Conf. on Signal Image Technology and Internet Based Systems (SITIS 2011), Track Internet Based Computing and Systems, IEEE/ACM Press, Dijon (France), Nov. 28 - Dec. 1, 2011. [local copy PDF]
  • Johannes P. Osterhoff, Jörg Waitelonis, Joscha Jäger, Harald Sack: 
    Sneak Preview? Instantly Know What To Expect In Faceted Browsing    . In Proc. of Interaktion und Visualisierung im Daten-Web (IVDW 2011) Workshop at INFORMATIK 2011, Okt. 06,  2011, Berlin, Germany. [local copy | citation (BibTex)]
  • Magnus Knuth, Nadine Ludwig, Lina Wolf, Harald Sack: 
    The Generation of User Interest Profiles from Semantic Quiz Games. In Proc. of The Second International Workshop on Mining Ubiquitous and Social Environments - MUSE 2011, Sept. 05,  2011, Athens, Greece, pp. 43-53.  [local copy | citation (BibTex)]
  • Lina Wolf, Magnus Knuth, Johannes P. Osterhoff, Harald Sack: 
    RISQ! Renowned Individuals Semantic Quiz – A Jeopardy like Quiz Game for Ranking Facts. In Proc. of 7th Int. Conf. on Semantic Systems I-SEMANTICS, 07.-09. Sept., 2011, Graz, Austria, ACM,  2011, pp. 71-78. [local copy | citation (BibTex)]
  • Johannes Hercher, A. Mitzscherlich, Harald Sack: 
    Bestandsanalyse, Metadaten und Systematisierung. Vogel, A. & Effenberg, P. (Eds.) Digitalisierungsfibel, Leitfaden für audiovisuelle Archive, Potsdam, Germany, transfermedia,  2011, pp. 82-101. [local copy | citation (BibTex)]
  • Nadine Ludwig, Harald Sack: 
    Named Entity Recognition for User-Generated Tags. In Proc. of the 8th Int. Workshop on Text-based Information Retrieval (TIR), 29.08.-02.09, IEEE CS Press,  2011. [local copy (PDF) | citation (BibTex)]
  • Jörg Waitelonis, Nadine Ludwig, Magnus Knuth, Harald Sack:
    Whoknows? - Evaluating Linked Data Heuristics with a Quiz that cleans up DBpedia. International Journal of Interactive Technology and Smart Education (ITSE), Emerald Group, Vol. 8,  2011 (3). (ISSN: 1741-5659) [local copy (PDF) | citation (BibTex)]
  • Haojin Yang, Christoph Oehlke and Christoph Meinel:
    A Solution for German Speech Recognition for Analysis and Processing of Lecture Videos, 10th IEEE/ACIS International Conference on Computer and Information Science (ICIS 2011) , IEEE Press, Sanya, Heinan Island, China, May 2011 [local copy PDF | citation BibTex]
  • Nadine Ludwig, Jörg Waitelonis, Magnus Knuth, Harald Sack:
    WhoKnows? - Evaluating Linked Data Heuristics with a Quiz that Cleans Up DBpedia. In Proc. of the 8th Extended Semantic Web Conference (ESWC) 29.05-02.06, Poster-Session, Springer LNCS 6643, 2011. (ISBN 978-3-642-21033-4) [local copy (PDF) | citation (BibTex)]
  • Johannes Hercher and Harald Sack: 
    Building a Research Context with Linked Bibliographic Data, OFKN Open Bibliographic Data Challenge,  Feb. 18, 2011. [local copy (PDF) | citation (BibTex)]
  • Jörg Waitelonis, Harald Sack: 
    Towards exploratory video search using linked data. In Multimedia Tools and Applications 53(2011), pp. 1-28, Springer Netherlands,  2011. (ISSN 1380-7501) [local copy (PDF) | citation (BibTex)]
  • Jörg Waitelonis, Johannes P. Osterhoff, Harald Sack: 
    More than the Sum of its Parts: CONTENTUS - A Semantic Multimodal Search User Interface. In Proc. of the Workshop on Visual Interfaces to the Social and Semantic Web (VISSW ), Co-located with ACM Conf. on Intelligent User Interfaces ( IUI ), Feb 13, 2011, Palo Alto, US, CEUR Workshop Proceedings Vol. 694,  2011. (ISSN 1613-0073) [local copy (PDF) | citation (BibTex)]

2010

2009

  • M. Quasthoff, H. Sack, Ch. Meinel: 
    How To Simplify Building Semantic Web Applications. In Proc. of the 5th Int. Workshop on Semantic Web Enabled Software Engineering (SWESE), in conjunction with 8th Int. Semantic Web Conference (ISWC), 25-29 October 2009, Washington, DC, CEUR Workshop Proceedings, Vol. 524, 2009, pp. 45-57. (ISSN 1613-0073) [local copy (PDF) | citation (BibTex)]
  • J. Waitelonis, H. Sack: 
    Towards Exploratory Video Search by Using Linked Data. In Proc. of the 2nd IEEE Int. Workshop on Data Semantics for Multimedia Systems and Applications (DSMSA), in conjunction with IEEE International Symposium on Multimedia (ISM), 14-16 December, 2009, San Diego, California, USA, IEEE Computer Society, 2009, pp. 540-545. (ISBN 978-0-7695-3890-7) [local copy (PDF) | citation (BibTex)]
  • J. Waitelonis, H. Sack: 
    Augmenting Video Search with Linked Open Data. In Proc. of Int. Conf.i-semantics), September 2-4, 2009, Graz, Austria, on Semantic Systems ( Verlag der TU Graz, Austria, 2009. (ISBN 978-3-85125-060-2) [local copy (PDF) | citation (BibTex)]
  • M. Quasthoff, H. Sack, Ch. Meinel: 
    Can Software Developers Use Linked Data Vocabulary?. In Proc. of Int. Conf. on Semantic Systems (i-semantics), September 2-4, 2009, Graz, Austria, Verlag der TU Graz, Austria, 2009. (ISBN 978-3-85125-060-2) [local copy (PDF) | citation (BibTex)]
  • B. Baumann, A. Gross , H. Sack, Ch. Meinel: 
    Linking tele-TASK video portal to the Semantic Web. In Proc. of 9th Int. Conf. on Innovative Internet Community Systems (I2CS), June 15-17, 2009, Jena, Germany, Lecture Notes in Informatics (LNI), Vol. 148, Gesellschaft für Informatik, Bonn, Germany, 2009. (ISBN 978-3-88579-242-0) [local copy (PDF) | citation (BibTex)]
  • R. Landefeld, H. Sack: 
    Collaborative Web-Publishing with a Semantic Wiki. In: S. Schaffert, T. Pellegrini, K. Tochtermann & S. Auer (Eds.): Networked Knowledge – Networked Media: Integrating Knowledge Management, New Media Technologies and Semantic Systems, Springer Heidelberg, 2009, pp. 129-140. (ISBN 978-3-64202-183-1) [local copy (PDF) | citation (BibTex)]
  • more publications ...