contact christian holz

• Hasso Plattner Institute / University of Potsdam
• Prof.-Dr.-Helmert-Straße 2-3
• 14482 Potsdam / Germany

• email: firstname.lastname@hpi.uni-potsdam.de
• web: http://www.christianholz.net
• phone: email me for phone number

short bio sketch

Christian Holz is a third year PhD student in Human-Computer Interaction at Hasso Plattner Institute, University of Potsdam, Germany. Previously, he was a research scholar in HCI at Columbia University in the City of New York. Christian's research focuses on ultra-small mobile devices that support spatial interaction.

Research interests: ultra-small mobile devices that support spatial interaction

My research is based on the observation that the miniaturization of mobile devices has come to a halt, which is due to human factors and not hardware limitations, as controls need to be large enough for input. I believe that further miniaturization and thus true ubiquity of mobile devices requires a better understanding of human constraints. In my research, I investigate and leverage human mental models to create ultra-small touch devices. I also build systems that allow users to interact spatially in the empty space in front of them, the ground they stand on, and on their skin. My tools include the combination of software and hardware, prototyping, and depth cameras.

curriculum vitae

full CV available upon request (email me)

Education and Visits

• 2009– PhD student in Human-Computer Interaction with Patrick Baudisch.
  Hasso Plattner Institute, Germany.
• 2008 research scholar with Steven Feiner.
  Computer Graphics and User Interfaces Lab, Columbia University in the City of New York, USA.
• 2008 Master of Science, Computer Science, Software Systems Engineering.
  University of Potsdam, Germany.
• 2007 research scholar with Chih-Ping Chu.
  Computer Aided Software Development Lab, National Cheng Kung University, Tainan, Taiwan.
• 2006 Geography, Geomatic Engineering, Computer Science.
  UCL University College London, UK.

Internships

• 2011 summer internship with George Fitzmaurice and Tovi Grossman.
  Autodesk Research, Toronto, ON, Canada.
• 2010 summer internship with Andy Wilson. Worked on gesture input and depth cameras. Led to full paper at CHI 2011.
  Microsoft Research, Redmond, WA, USA.

Professional activities

• 2012 UIST Demo Co-Chair
• 2012 CHI Associate Chair (Interaction Techniques and Devices)
• 2011 UIST Demo Co-Chair

Paper Publications at CHI and UIST

8. Christian Holz, Tovi Grossman, George Fitzmaurice et al. 2012. [Title waiting for Autodesk release]. To appear in Proceedings of the 2012 annual conference on Human factors in computing systems (CHI '12). Austin, TX, USA (May 5-10, 2012). ACM, New York, NY, USA, 10 pages.
7. Stephan Richter, Christian Holz, Patrick Baudisch. 2012. Bootstrapper: Recognizing Tabletop Users by their Shoes. To appear in Proceedings of the 2012 annual conference on Human factors in computing systems (CHI '12). Austin, TX, USA (May 5-10, 2012). ACM, New York, NY, USA, 4 pages (short paper).
6. Sean Gustafson, Christian Holz, Patrick Baudisch. 2011. Imaginary Phone: Learning Imaginary Interfaces by Transferring Spatial Memory from a Familiar Device. In Proceedings of the 24th annual ACM symposium on User interface software and technology (UIST '11). Santa Barbara, CA, USA (October 16-19, 2011). ACM, New York, NY, USA, 283–292.
5. Christian Holz and Andrew D. Wilson. 2011. Data Miming: Inferring Spatial Object Descriptions from Human Gesture. In Proceedings of the 2011 annual conference on Human factors in computing systems (CHI '11). Vancouver, BC, Canada (May 7-12, 2011). ACM, New York, NY, USA, 811–820.
4. Christian Holz and Patrick Baudisch. 2011. Understanding Touch. In Proceedings of the 2011 annual conference on Human factors in computing systems (CHI '11). Vancouver, BC, Canada (May 7-12, 2011). ACM, New York, NY, USA, 2501–2510.
3. Thomas Augsten, Konstantin Kaefer, Rene Meusel, Caroline Fetzer, Dorian Kanitz, Thomas Stoff, Torsten Becker, Christian Holz and Patrick Baudisch. 2010. Multitoe: High-Precision Interaction with Back-Projected Floors Based on High-Resolution Multi-Touch Input. In Proceedings of the 23rd annual ACM symposium on User interface software and technology (UIST '10). New York, NY, USA (October 3-6, 2010). ACM, New York, NY, USA, 209–218.
2. Christian Holz and Patrick Baudisch. 2010. The Generalized Perceived Input Point Model and How to Double Touch Accuracy by Extracting Fingerprints. In Proceedings of the 28th international conference on Human factors in computing systems (CHI '10). Atlanta, GA, USA (April 10-15, 2010). ACM, New York, NY, USA, 581–590.
1. Christian Holz and Steven Feiner. 2009. Relaxed Selection Techniques for Querying Time-Series Graphs. In Proceedings of the 22nd annual ACM symposium on User interface software and technology (UIST '09). Victoria, BC, Canada (October 4-7, 2009). ACM, New York, NY, USA, 213–222.