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Dipl.-Ing. Gerold Hölzl
Wissenschaftlicher Mitarbeiter

Institut für Pervasive Computing
Johannes Kepler Universität Linz
Altenberger Straße 69
A-4040 Linz

Room: P107
Office Hour: Mo 10:00 - 11:00
Phone: +43-732-2468-8518
Fax: +43-732-2468-8426
E-Mail: gerold döt hoelzl ät pervasive döt jku döt at
Lectures in 2012SS
340.001UEPervasive Computing Systems Development
Projects
OPPORTUNITY: FP7-ICT-2007-C, FET open Goals: The project aims at developing mobile systems to recognize human activity with dynamically varying sensor setups. We refer to such systems as opportunistic, since they take advantage of sensing modalities that just happen to be available, rather than forcing to deploy specific, application dependent sensor systems. Partners: ETH Zurich, UoPassau, IDIAP Status: started February 1st, 2009
PowerIT: FFG Call: FIT-IT Embedded Systems & Semiconductors, 2nd Call Goals: This project will investigate on potentials to reduce energy inefficiency by the development of methods and solutions based on implicit user interaction. Methodologically, it will attempt to exploit opportunistic sensor configurations to establish context information, in order to avoid standby losses of electronic equipment, machines and appliances.
Betreute Bakk-/Masterarbeiten
TV-Content-Recognition based on Energy Consumption: Problem Definition and ApproachIn this work the effect of different content displayed on a TV-Screen on its power consumption has to be examined. This is an important topic as energy providers install more and more „smart meters“ in households that can be read out during runtime to enable the vision of a smart grid. In this theses, it should be shown if this information can be used to dynamically extract the content that is watched on TV in realtime based on the energy consumption.
Publications (10)
2012
Goal Oriented Opportunistic Recognition of High-Level Composed Activities using Dynamically Configured Hidden Markov Models
The 3rd International Conference on Ambient Systems, Networks and Technologies (ANT2012), 2012.
Dynamic Adaptation of Opportunistic Sensor Configurations for Continuous and Accurate Activity Recognition
Fourth International Conference on Adaptive and Self-Adaptive Systems and Applications (ADAPTIVE2012), July 22-27, Nice, France, ISBN: 978-1-61208-219-6, 2012.
2011
M. Kurz, G. Hölzl, A. Ferscha, A. Calatroni, D. Roggen, G. Tröster, H. Sagha, R. Chavarriaga, J. Millán, D. Bannach, K. Kunze, P. Lukowicz
The OPPORTUNITY Framework and Data Processing Ecosystem for Opportunistic Activity and Context Recognition
International Journal of Sensors, Wireless Communications and Control, Special Issue on Autonomic and Opportunistic Communications, Bentham Science Publishers, ISSN: 2210-3279, 2011.
D. Roggen, A. Calatroni, K. Förster, G. Tröster, P. Lukowicz, D. Bannach, A. Ferscha, M. Kurz, G. Hölzl, H. Sagha, H. Bayati, J. del R. Millán, R. Chavarriaga
Activity Recognition in Opportunistic Sensor Environments
Proceedings of the 2nd European Future Technologies Conference and Exhibition 2011 (FET 11), Procedia Computer Science, Editors: Elisabeth Giacobino, Rolf Pfeifer, Elsevier, Vol. 7, pp. 173-174, 2011.
M. Kurz, G. Hölzl, A. Ferscha, A. Calatroni, D. Roggen, G. Troester
Real-Time Transfer and Evaluation of Activity Recognition Capabilities in an Opportunistic System
Third International Conference on Adaptive and Self-Adaptive Systems and Applications (ADAPTIVE2011), September 25-30, Rome, Italy, ISBN: 978-1-61208-156-4, pp. 73-78, 2011.
G. Hölzl, M. Kurz, A. Ferscha, D. Roggen, A. Calatroni, G. Tröster, R. Chavarriaga, J. Millán, H. Sagha, P. Lukowicz, D. Bannach
A Framework for Opportunistic Context and Activity Recognition
9th International Conference on Pervasive Computing (Pervasive2011), June 12-15, San Francisco, CA, USA, 2011.
Goal Oriented Opportunistic Sensing
9th International Conference on Pervasive Computing (Pervasive2011), Doctoral Consortium, June 12-15, San Francisco, CA, USA, 2011.
Projects: OPPORTUNITY
M. Kurz, G. Hölzl, A. Ferscha, H. Sagha, J. Millán, R. Chavarriaga
Dynamic Quantification of Activity Recognition Capabilities in Opportunistic Systems
Fourth Conference on Context Awareness for Proactive Systems: CAPS2011, 15-16 May 2011, Budapest, Hungary, 2011.
D. Roggen, A. Calatroni, K. Förster, G. Tröster, A. Ferscha, M. Kurz, G. Hölzl, P. Lukowicz, D. Bannach, H. Sagha, H. Bayati, J. Millán, R. Chavarriaga
Activity recognition in opportunistic sensor environments
The European Future Technologies Conference and Exhibition (FET11), 4-6 May, Budapest, Hungary, pp. 2, 2011.
Projects: OPPORTUNITY
2010
R. Chavarriaga, J. Millán, H. Sagha, H. Bayati, P. Lukowicz, D. Bannach, D. Roggen, K. Förster, A. Calatroni, G. Tröster, A. Ferscha, M. Kurz, G. Hölzl
Robust activity recognition for assistive technologies: Benchmarking ML techniques
Workshop on Machine Learning for Assistive Technologies at the Twenty-Fourth Annual Conference on Neural Information Processing Systems (NIPS-2010), 2010.
Projects: OPPORTUNITY