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Christian Hentschel

Hasso-Plattner-Institut für
Softwaresystemtechnik GmbH

Universität Potsdam
Prof.-Dr.-Helmert-Str. 2-3
14482 Potsdam

Phone+49 331-5509-540



SS 2014

SS 2013

WS 2012/2013

  • Semantic Media Mining (seminar, Bachelor, 4 SWS, seminar blog)

SS 2012

  • Multimedia Analyse Technologien (seminar, Master, 4 SWS, seminar blog)

WS 2011/12

  • Large Scale Processing for Multimedia Analysis (seminar, Master, 4 SWS, seminar blog)



Research group Future Internet: Semantic Technologies

D-Werft - Linked Open Data based data integration for the value creation process in the media industry - funded by the German Federal Ministry of Education and Research (starting 03/2014)


TIBAV-Portal Gottfried-Leibnitz-Universität Hannover, a project with Technische Informationsbibliothek Hannover (TIB).


SemexSEMEX - Semantic Media Explorer is a demonstrator that combines the latest media analysis processes to provides optimal access to video content.


MEDIAGLOBE - the digital archive is part of the THESEUS research program initiated by the German Federal Ministry of Economy and Technology (BMWi). MEDIAGLOBE deals with digitization, analysis, and semantic retrieval of historical, documentary audiovisual content.


tele-TASK (tele-Teaching Anywhere Solution Kit) is an advanced mobile system for the production of Internet streaming videos and podcasts featuring a new and drastically simplified technology.



  • Hentschel, Christian and Sack, Harald: What Image Classifiers Really See - Visualizing Bag-of-Visual Words Models. MultiMedia Modeling - 21st International Conference, MMM 2015, Sydney, NSW, Australia, January 5-7, 2015, Proceedings, DOI
  • Hentschel, Christian and Sack, Harald: Does one size really fit all?: Evaluating classifiers in bag-of-visual-words classification. In Proc. of the 14th Int. Conf. on Knowledge Technologies and Data-driven Business (i-KNOW '14), Sep, 16-19, 2014, Graz Austria, ACM, New York, NY, USA, Article 7, DOI
  • Low, Thomas; Hentschel, Christian; Stober, Sebastian; Sack, Harald; Nürnberger, Andreas: Visual Berrypicking in Large Image Collections. In Proc. of the 8th Nordic Conference on Human-Computer Interaction: Fun, Fast, Foundational (NordiCHI’14), Oct 26-30, 2014, ACM, New York, NY, USA, DOI
  • Hentschel, Christian; Blümel, Ina, Sack, Harald: Automatic Annotation of Scientific Video Material based on Visual Concept Detection. In Proc. of 13th Int. Conf. on Knowledge Management and Knowledge Technologies (i-KNOW '13), Sep, 4-6, 2013, Graz, Austria, ACM, New York, NY, USA, Article 16, DOI
  • Hentschel, Christian; Sack, Harald; Steinmetz, Nadine: Cross-Dataset Learning of Visual Concepts. In AMR 2012 - 10th International Workshop on Adaptive Multimedia Retrieval (Copenhagen): 2012.10.24-25
  • Hentschel, C.; Hercher, J.; Knuth, M.; Osterhoff, J.; Quehl, B.; Sack, H.; Steinmetz, N.; Waitelonis, J.; Yang H.: Open Up Cultural Heritage in Video Archives with Mediaglobe. In: 12th International Conference on Innovative Internet Community Services (I2CS 2012), June 13-15, 2012, Trondheim (Norway), Lecture Notes in Informatics, Vol. 204 [local copy (.pdf)]
  • Steffen, Johannes; Hentschel, Christian; Alyosef, Afra’a Ahmad; Toennies, Klaus; Nuernberger, Andreas: Transformation Invariances at Fixation Points - Experiments Using Human Gaze Data. In: International Conference on Pattern Recognition Applications and Methods 2012 (ICPRAM 2012). 6-8 February 2012, Vilamoura, Algarve, Portugal [to appear]
  • Mbanya, Eugene; Gerke, Sebastian; Hentschel, Christian; Ndjiki-Nya, Patrick: Sample Selection, Category Specific Features and Reasoning. In: CLEF 2011 Labs and Workshop, Notebook Papers, 19-22 September 2011, Amsterdam, The Netherlands, ISBN 978-88-904810-1-7
  • Hentschel, Christian ; Gerke, Sebastian; Mbanya, Eugene: Classifying images at scene level: comparing global and local descriptors. In: AMR 2011 - 9th International Workshop on Adaptive Multimedia Retrieval (Barcelona): 2011.07.18-19 [to appear]
  • Stober, Sebastian; Hentschel, Christian; Nürnberger, Andreas: Evaluation of adaptive SpringLens - a multi-focus interface for exploring multimedia collections. In: Nordic Conference on Human - Computer Interaction : 6th Nordic Conference on Human-Computer Interaction 2010 (NordiCHI 2010) . - Red Hook, NY : Curran, ISBN 978-1-617-82464-7 Congress: NordiCHI; 10 (Reykjavik) : 2010.10.16-20
  • Mbanya, Eugene; Hentschel, Christian; Gerke, Sebastian; Liu, Mohan; Nürnberger, Andreas; Ndjiki-Nya, Patrick: Augmenting Bag-of-Words - Category Specific Features and Concept Reasoning. In: CLEF 2010 LABs and Workshops, Notebook Papers, 22-23 September 2010, Padua, Italy, ISBN 978-88-904810-0-0
  • Stober, Sebastian; Henschel, Christian; Nürnberger, Andreas: Multi-facet exploration of image collections with an adaptive multi-focus zoomable interface. In: The 2010 International Joint Conference on Neural Networks (IJCNN), 2010 . - Piscataway, NJ : IEEE, insges. 8 S.; Abstract
  • Hentschel, Christian; Stober, Sebastian; Nürnberger, Andreas; Detyniecki, Marcin: Automatic image annotation using a visual dictionary based on reliable image segmentation. In: Adaptive multimedial retrieval . - Berlin [u.a.] : Springer, ISBN 3-540-79859-5, S. 45-56; Lecture notes in computer science; 4918;
  • Henschel, Christian; Nürnberger, Andreas; Schmitt, Ingo; Stober, Sebastian:SAFIRE - towards standardized semantic rich image annotation. In: Adaptive multimedia retrieval: user, context, and feedback . - Berlin [u.a.] : Springer, ISBN 3-540-71544-4, S. 12-27; Lecture notes in computer science; 4398, 2007 [AMR 2006 ; 4 (Geneva) ; 2006.07.27-28]