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Dr. Raimund Schatz MBA

Scientist  

AIT Austrian Institute of Technology
Innovation Systems / Technology Experience

Donau-City-Straße 1, A-1220 Vienna, Austria
Tel: +43 1 50550-4526
E-mail: raimund.schatz AT ait.ac.at

[Biography] [Research] [Projects] [Publications]

News

Short Bio

I am Scientist at the AIT Austrian Institute of Technology, Dept. Innovation Systems. Until End of 2015 I was Key Researcher and Area Manager at the Telecommunications Research CenterVienna (FTW), Department of User-centered Interaction, Services, and Systems Quality. As reagards higher education, I hold an Msc. in Telematics (TU-Graz), a PhD in Informatics (TU-Vienna), an MBA and an MSc. in International and Finance Management (both from Open University, UK).

Among others, I have lead FTW´s research projects (GRACE, ACE, ACE 2.0, ACE 3) on Quality-of-Experience assessment and monitoring of broadband services in wireless and wireline networks, conducted together with industry partners such as A1 Telekom Austria, Telekom Austria Group, Kapsch CarrierCom and Vodafone Group.

Furthermore, I am actively involved in various QoE-related EU projects and networking activities, including Optiband (FP7), CELTIC QuEEN and COST Actions IC1003 Qualinet and IC1304 ACROSS (as MC member), as well as the organization of various QoE-related workshops and events (e.g. Special Session Chair for QoMEX 2013, Organizer of PQS 2013, QoENAM 2014, general chair of QoE-FI 2016, etc.). Being an active member of ACM and IEEE, I am (co-)author of more than 100 publications in the areas of Quality of Experience, Service Quality, HCI and Pervasive Computing.

Research

My current research interests span different areas of pervasive computing and communication networks:

  • Human Computer Interaction
  • Quality of Experience for Broadband Multimedia and Communication Services and Networks
  • Multimedia Technologies and Systems
  • Pervasive computing in Multimedia, Entertainment and Healthcare

I conduct my current research activities in the Innovation Systems Department, Business Unit “Technology Experience” at the AIT Austrian Institute of Technology.

Projects

I have been involved in the following ongoing research projects, research actions and networking bodies:

  • “Advancing the Customer Experience (ACE 3.0)” COMET project
    (2012-2015). Project partners: FTW, Telekom Austria, A1 Telekom Austria, Vodafone Group Services Limited, Vodafone D2.
    Link
  • “Quality of Experience Estimators in Networks (QuEEN)” CELTIC project
    (2012-2014).
    Link
  • “Public Safety.NET (PS.NET)” KIRAS project
    (2013-2015). Project partners: Frequentis, A1/TA, BM.I, ZSI, Johanniter.
    Link
  • “IC 1003 Qualinet” COST action.
    Link
  • “IC 1304 ACROSS” COST action.
    Link
  • “NGMN” Next Generation Mobile Network Alliance.
    Link

Previously I’ve been working in or managing the following research projects and was involved in the following research actions:

  • IC0703 Traffic Monitoring and Analysis TMA (COST) -> QoE SiG
  • Optiband (FP7)
  • PRUNO – Prospects for Realizing User-centric Network Orchestration
  • ACE 2.0 – Advancing the Customer Experience in Mobile Networks 2.0
  • NGMN P-SERQU – Service Quality Definition and Measurement
  • ACE – Advancing the Customer Experience in Mobile Networks
  • AMUSE + AMUSE 2.0 – Advanced Multimedia Services for mobile Unicast and Broadcast
  • USEIT – User Experience Evaluation of Interactive Television Applications
  • MONA – Multimodal Next-generation Applications
  • ABC4PH – Activity Based Computing for Pervasive Healthcare
  • BIS – Components for Intelligent Search in Multimedia Patient Files

Publications

DBLP
Google Scholar

2016: to be updated soon!

Casas, B. Gardlo, M. Seufert, F. Wamser, and R. Schatz. Next to You: Monitoring Quality of Experience in Cellular Networks from the End-devices. In IEEE Transactions on Network and Service Management, 2016.

Tavakoli, S. Egger, M. Seufert, R. Schatz, K. Brunnström, and N. Garcia. Perceptual Quality of HTTP Adaptive Streaming Strategies – Cross-Experimental Analysis of Multi-Laboratory and Crowdsourced Subjective Studies. In IEEE JSAC Special Issue on Video Distribution over Future Internet, 2016.

Liotou, E., Schatz, R., Sackl, A., Casas, P., Tsolkas, D., Passas, N. and Merakos, L., “The Beauty of Consistency in Radio-Scheduling Decisions”, In IEEE Global Communications Conference – Workshops: Quality of Experience for Multimedia Communications (GC16 Workshops QoEMC), December, 8th, 2016, Washington, USA.

Zinner, O. Hohlfeld, R. Schatz, P. Calyam. Proceedings of the 4th International IEEE Workshop on Quality of Experience Centric Management (QCMAN), Co-located with the 2016 28th International Teletraffic Congress (ITC), Sept 16th, Würzburg, Germany, 2016.

Sackl, A., Gardlo, B. and Schatz, “Size does matter. Comparing the results of a lab and a crowdsourcing file download QoE study”, 5th ISCA/DEGA Workshop on Perceptual Quality of Systems (PQS), August, 29th – 31st, 2016, Berlin, Germany.

Sackl, A., Schatz, R., Hossfeld, T., Metzger, F., Lister, D.R. and Irmer, R. „QoE Management Made Uneasy: The Case of Cloud Gaming”, In: IEEE International Conference on Communications Workshops (ICC), May, 23rd – 27th, 2016, Kuala Lumpur, Malaysia.

Seufert, M., Casas, P., Wamser, F., Wehner, N., Schatz, R. and Tran-Gia, P. “Application-Layer Monitoring of QoE Parameters for Mobile YouTube Video Streaming in the Field”, In 6th International Conference on Communications and Electronics (ICCE 2016), July, 27th – 29th, 2016, Ha Long, Vietnam.

R.Schatz, “Assessing QoE in Cellular Networks: from Lab Studies to Field Measurements“, 4th International Conference on Quality of Telecommunication Networks and Services, Nov 25th, Warsaw, Poland, 2015.

Casas, B. Gardlo, M. Seufert, F. Wamser and R. Schatz, “Taming QoE in cellular networks: From subjective lab studies to measurements in the field,” Network and Service Management (CNSM), 2015 11th International Conference on, Barcelona, 2015, pp. 237-245.

P. Casas, M. Varela, P. Fiadino, M. Schiavone, H. Rivas and R. Schatz, “On the analysis of QoE in cellular networks: From subjective tests to large-scale traffic measurements,” Wireless Communications and Mobile Computing Conference (IWCMC), 2015 International, Dubrovnik, 2015, pp. 37-42.

Michael Seufert, Florian Wamser, Pedro Casas, Ralf Irmer, Phuoc Tran-Gia, and Raimund Schatz. 2015. Demo: On the Monitoring of YouTube QoE in Cellular Networks from End-devices. In Proceedings of the 2015 Workshop on Wireless of the Students, by the Students, & for the Students (S3 ’15). ACM, New York, NY, USA, 23-23.

Florian Wamser, Michael Seufert, Pedro Casas, Ralf Irmer, Phuoc Tran-Gia, and Raimund Schatz. 2015. Poster: Understanding YouTube QoE in Cellular Networks with YoMoApp: A QoE Monitoring Tool for YouTube Mobile. In Proceedings of the 21st Annual International Conference on Mobile Computing and Networking (MobiCom ’15). ACM, New York, NY, USA, 263-265.

M. Seufert, F. Wamser, P. Casas, R. Irmer, P. Tran-Gia, and R. Schatz. YouTube QoE on Mobile Devices: Subjective Analysis of Classical vs. Adaptive Video Streaming. In Proc. 6th International Workshop on Traffic Analysis and Characterization (TRAC), Dubrovnik, Croatia, 2015.

A. Sackl, F. Roland, R. Schatz, W. Kampichler, and L. Kastner. Computer-supported control center systems and mobile apps in the context of disaster management. In Proc. IDIMT – Interdisciplinary Information and Management Talks, Poděbrady, Czech Republic, 2015.

F. Wamser, M. Seufert, P. Casas, R. Irmer, P. Tran-Gia, and R. Schatz. YoMoApp: a Tool for Analyzing QoE of YouTube HTTP Adaptive Streaming in Mobile Networks. In Proc. European Conference on Networks and Communications (EuCNC), Paris, France, 2015.

P. Casas, A. Sackl, R. Schatz, L. Janowski, J. Turk, and R. Irmer. On the Quest for New KPIs in Mobile Networks: The Impact of Throughput Fluctuations on QoE. In Proc. ICC, London, UK, 2015. IEEE.

A. Sackl and R. Schatz. The Influence of User Decisions on Subjective Quality Assessment Ratings. In Proc. Quality of Experience-based Management for Future Internet Applications and Services (QoE-FI), London, UK, 2015.

E. Liotou, H. Elshaer, R. Schatz, R. Irmer, M. Dohler, N. Passas, and L. Merakos. Shaping QoE in the 5G Ecosystem. In Proc. QoMEX 2015, Costa Navarino, Greece, 2015. IEEE.

A. Sackl, P. Casas, R. Schatz, J. Lucjan, and R. Irmer. Quantifying the Impact of Network Bandwidth Fluctuations and Outages on Web QoE. In Proc. International Workshop on Quality of Multimedia Experience, Messinia, Greece, 2015.

S. Egger, B. Gardlo, M. Seufert, and R. Schatz. The Impact of Adaptation Strategies on Perceived Quality of HTTP Adaptive Streaming. In Proc. 2014 Workshop on Design, Quality and Deployment of Adaptive Video Streaming (VideoNext ’14), Sydney, Australia, pages 31–36, 2014. ACM. DOI: 10.1145/2676652.2676658.

P. Casas, A. Sackl, S. Egger, and R. Schatz. Characterizing Microsoft Lync Online in Mobile Networks: a Quality of Experience Perspective. In Proc. 2014 IEEE 3rd International Conference on Cloud Networking (CloudNet), Luxembourg, Luxembourg, 2014.

R. Schatz and S. Egger. An Annotated Dataset for Web Browsing QoE. In Quality of Multimedia Experience (QoMEX) 2014, Singapore, Singapore, 2014. IEEE.

A. Sackl and R. Schatz. Evaluating the influence of expectations, price and content selection on video quality perception. In Proceedings of the International Workshop on Quality of Multimedia Experience (QoMEX) 2014, Singapore, Singapore, 2014.

A. Sackl, S. Egger, and R. Schatz. The influence of network quality fluctuations on Web QoE. In Proceedings of the International Workshop on Quality of Multimedia Experience (QoMEX) 2014, Singapore, Singapore, 2014.

A. Sackl and R. Schatz. Got What You Want? Modeling Expectations to Enhance Web QoE Prediction . In Proceedings of the International Workshop on Quality of Multimedia Experience (QoMEX) 2014, Singapore, Singapore, 2014.

B. Gardlo, S. Egger, M. Seufert, and R. Schatz. Crowdsourcing 2.0: Enhancing Execution Speed and Reliability of Web-based QoE Testing. In Proc. IEEE International Conference on Communications, Sydney, Australia, 2014.

K. Schoenenberg, A. Raake, S. Egger, and R. Schatz. On interaction behaviour in telephone conversations under transmission delay. Speech Communication, 2014.

T. Hossfeld, R. Schatz, and U. Krieger. QoE of YouTube Video Streaming for Current Internet Transport Protocols. In Proc. 17th International GI/ITG Conference on Measurement, Modelling and Evaluation of Computing Systems and Dependability and Fault-Tolerance (MMB&DFT 2014), Bamberg, Germany, 2014.

P. Casas and R. Schatz. Quality of Experience in Cloud Services: Survey and Measurements. Computer Networks Journal, 2014.

T. Zinner, T. Hoßfeld, M. Fiedler, F. Liers, T. Volkert, R. Khondoker, and R. Schatz. Requirement Driven Prospects for Realizing User-Centric Network Orchestration. Multimedia Tools and Applications, 74(2), 2015.

A. Sackl and R. Schatz. Modelling QoE and WTP in the context of VoD services. Modelling results FTW-TECHREPORT-137, FTW, Donau-City-Straße 1, Vienna, Austria, 2014.

R. Schatz, M. Fiedler, and L. Skorin-Kapov. QoE-based Network and Application Management. In S. Möller and A. Raake, editors, Quality of Experience: Advanced Concepts, Applications and Methods. Springer, 2014.

D. Strohmeier, S. Egger, A. Raake, R. Schatz, and T. Hossfeld. Web Browsing. In S. Möller and A. Raake, editors, Quality of Experience: Advanced Concepts, Applications and Methods. Springer, 2014.

K. Schoenenberg, A. Raake, S. Egger, and R. Schatz. On interaction behaviour in telephone conversations under transmission delay. Speech Communication, 2014.

T. Hossfeld, R. Schatz, and U. Krieger. QoE of YouTube Video Streaming for Current Internet Transport Protocols. In Proc. 17th International GI/ITG Conference on Measurement, Modelling and Evaluation of Computing Systems and Dependability and Fault-Tolerance (MMB&DFT 2014), Bamberg, Germany, 2014.

P. Casas and R. Schatz. Quality of Experience in Cloud Services: Survey and Measurements. Computer Networks Journal, 2014.

A. Sackl and R. Schatz. Modelling QoE and WTP in the context of VoD services. Modelling results FTW-TECHREPORT-137, FTW, Donau-City-Straße 1, Vienna, Austria, 2014.

R. Schatz, M. Fiedler, and L. Skorin-Kapov. QoE-based Network and Application Management. In S. Möller and A. Raake, editors, Quality of Experience: Advanced Concepts, Applications and Methods. Springer, 2014.

D. Strohmeier, S. Egger, A. Raake, R. Schatz, and T. Hossfeld. Web Browsing. In S. Möller and A. Raake, editors, Quality of Experience: Advanced Concepts, Applications and Methods. Springer, 2014.

P. Casas, M. Seufert, and R. Schatz. YOUQMON: A System for On-line Monitoring of YouTube QoE in Operational 3G Networks. In Proc. 31st International Symposium on Computer Performance, Modeling, Measurements and Evaluation, IFIP Performance 2013, Vienna, Austria, 2013.

P. Amrehn, K. Vandenbroucke, T. Hoßfeld, K. De Moor, M. Hirth, R. Schatz, and P. Casas. Need for Speed? On QoE for File Storage Services. In Proc. 4th International Workshop on Perceptual Quality of Systems, Vienna, Austria, 2013.

P. Casas, D. Paraskevopoulou, G. Settanni, S. Suette, P. Zwickl, and R. Schatz. Quality of Experience in Telepresence and Remote Collaboration Cloud Services. In Proc. 4th International Workshop on Perceptual Quality of Systems, Vienna, Austria, 2013.

R. Schatz and T. Hossfeld. Proceedings of The Fourth Workshop on Perceptual Quality of Systems (PQS 2013). Proceedings FTW-TECHREPORT-128, FTW, Vienna, Austria, 2013.

A. Sackl and R. Schatz. Evaluating the impact of expectations on end-user quality perception. In Proc. The Fourth International Workshop on Perceptual Quality of Systems (PQS 2013), Vienna, Austria, 2013.

P. Merino, M. G. Martini, R. Schatz, L. Skorin-Kapov, and M. Varela. Improving QoS and QoE for Mobile Communications. Journal of Computer Networks and Communications, 2013, 2013. DOI: 10.1155/2013/645174.

A. Sackl, S. Egger, and R. Schatz. Where’s the Music? Comparing the QoE impact of temporal impairments between music and video streaming. In Proc. The fifth international workshop on Quality of Multimedia Experience (QoMEX), Klagenfurt, Austria, 2013.

P. Casas, H. R. Fischer, S. Suette, and R. Schatz. A First Look at Quality of Experience in Personal Cloud Storage Services. In Proc. IEEE International Conference on Communications (ICC) 2013 – Workshop on Mobile Cloud Networking and Services (MCN), Budapest, Hungary, 2013. IEEE Computer Society.

P. Casas, M. Seufert, S. Egger, and R. Schatz. Quality of Experience in Remote Virtual Desktop Services. In Proc. IFIP/IEEE Workshop on QoE-Centric Management (QCMan 2013), Ghent, Belgium, 2013. IEEE.

P. Casas, R. Schatz, and T. Hossfeld. Monitoring YouTube QoE: Is Your Mobile Network Delivering the Right Experience to your Customers?. In Proc. 2013 IEEE Wireless Communications and Networking Conference (WCNC), Shanghai, China, 2013. IEEE Computer Society.

T. Hossfeld, R. Schatz, E. Biersack, and L. Plissoneau. Internet Video Delivery: From Traffic Measurements to Quality of Experience. In E. Biersack, M. Matjasevice, and C. Callegari, editors, Data Traffic Monitoring and Analysis. Springer LNCS, 2013.

R. Schatz, T. Hossfeld, L. Janowski, and S. Egger. From Packets to People: Quality of Experience as New Measurement Challenge. In Data Traffic Monitoring and Analysis. Springer LNCS, 2013.

T. Hossfeld, D. Strohmeier, A. Raake, and R. Schatz. Pippi Longstocking Calculus for Temporal Stimuli Pattern on YouTube QoE. In Proc. MoVid 2013, Oslo, Norway, 2013. ACM Press.

P. Casas, A. Sackl, S. Egger, and R. Schatz. YouTube & Facebook Quality of Experience in Mobile Broadband Networks. In Proceedings of the IEEE Globecom 2012, Anaheim, California, 2012. IEEE.

S. Egger, B. Gardlo, and R. Schatz. Interactive Content for Subjective Studies on Web Browsing QoE: A Kepler derivative. In P. Pocta and J. Pomy, editors, ETSI Workshop on Selected Items on Telecommunication Quality Matters, Vienna, Austria, 2012. ETSI.

R. Schatz and S. Egger. The Impact of Terminal Performance and Screen Size on QoE. In P. Pocta and J. Pomy, editors, Proceedings of ETSI Workshop on Selected Items on Telecommunication Quality Matters, Vienna, Austria, 2012. ETSI.

R. Schatz and S. Egger. Proposal for G.QoE-Web scope. Contributed to ITU-T, work group SG12, document Q13Berlin2012_WD06, Berlin, Germany, 2012.

S. Egger, R. Schatz, D. Strohmeier, and A. Raake. Shortcomings of G.1030 Annex A. Contributed to ITU-T, work group SG12, document Q13Berlin2012_WD04, Berlin, Germany, 2012.

S. Egger and R. Schatz. Perceptual Events in a page view cycle. Contributed to ITU-T , work group SG12, Berlin, Germany, 2012.

K. Masuch, M. Muehlegger, A. Sackl, S. Egger, R. Schatz, E. Oberzaucher, and K. Grammer. What you get is what you see? Pretending facts in applied user ratings studies. In Proc. XXI Biennial Conference on Human Ethology, Austria, Vienna, 2012.

R. Schatz, T. Hossfeld, and P. Casas. Passive YouTube QoE Monitoring for ISPs. In The 2nd International Workshop on Future Internet and Next Generation Networks, Palermo, Italy, 2012.

S. Egger, T. Hossfeld, R. Schatz, and M. Fiedler. Tutorial: Waiting Times in Quality of Experience for Web based Services. In IEEE QoMEX 2012, Yara Valley, Australia, 2012.

P. Fröhlich, M. Ries, K. Masuch, and R. Schatz. Investigating the Effects of Test Clip Quality Distribution in HD Video QoE Studies. In Proc. QoMEX (Quality of the Multimedia Experience) 2012, Yarra Valley, Australia, 2012.

P. Fröhlich, S. Egger, R. Schatz, M. Muehlegger, K. Masuch, and B. Gardlo. QoE in 10 Seconds: Are Short Video Clip Lengths Sufficient for Quality of Experience Assessment?. In Proc. QoMEX (Quality of the Multimedia Experience) 2012, Yarra Valley, Australia, 2012.

T. Hossfeld, S. Egger, R. Schatz, M. Fiedler, K. Masuch, and C. Lorentzen. Initial Delay Vs. Interruptions: Between The Devil And The Deep Blue Sea. In Proc. QoMEX (Quality of the Multimedia Experience) 2012, Yarra Valley, Australia, 2012.

S. Egger, R. Schatz, K. Schoenenberg, A. Raake, and G. Kubin. Same but Different? – Using Speech Signal Features for Comparing Conversational VoIP Quality Studies. In IEEE ICC 2012 – Communication QoS, Reliability and Modeling Symposium (ICC’12 CQRM), Ottawa, Ontario, 2012.

S. Egger, P. Reichl, T. Hossfeld, and R. Schatz. “Time is Bandwidth”? Narrowing the Gap between Subjective Time Perception and Quality of Experience. In IEEE ICC 2012 – Communication QoS, Reliability and Modeling Symposium (ICC’12 CQRM), Ottawa, Ontario, 2012. IEEE.

A. Sackl, K. Masuch, S. Egger, and R. Schatz. Wireless vs. Wireline Shootout: How user expectations influence Quality of Experience. In Proc. QoMEX (Quality of the Multimedia Experience) 2012, Yarra Valley, Australia, 2012.

T. Hossfeld, F. Liers, R. Schatz, B. Staehle, D. Staehle, T. Volkert, and F. Wamser. Quality of Experience Management for YouTube: Clouds, Rain, and FoG. Praxis der Informationsverarbeitung und Kommunikation, 2012.

T. Hossfeld, R. Schatz, M. Varela, and C. Timmerer. Challenges of QoE Management for Cloud Applications. IEEE Communications Magazine, 2012.

S. Egger, R. Schatz, K. Masuch, and D. Strohmeier. Draft P.STMWeb. Contributed to ITU-T , work group SG12, Geneva, Switzerland, 2012.

R. Schatz, S. Egger, and K. Masuch. The Impact of User Fatigue and Test Duration on the Reliability of Subjective Quality Ratings. Journal of the Audio Engineering Society, 59(10), 2012.

T. Hossfeld, R. Schatz, M. Seufert, M. Hirth, T. Zinner, and P. Tran-Gia. Quantification of YouTube QoE via Crowdsourcing. In IEEE International Workshop on Multimedia Quality of Experience: Modeling, Evaluation, and Directions, Dana Point, California, 2011. IEEE.

S. Egger, R. Schatz, and W. Karner. T09-SG12-C-0248: Web Browsing QoE Subjective Testing Methodology. Contributed to ITU-T, work group SG 12, document T09-SG12-C-0248, Geneva, 2011.

R. Schatz, S. Egger, T. Hossfeld, and W. Müllner. T09-SG12-C-0236: Report on influence factors on web-browsing QoE and proposal of new study item. Contributed to ITU-T, work group SG 12, document T09-SG12-C-0236, Geneva, 2011.

T. Hossfeld, F. Liers, T. Volkert, and R. Schatz. FoG and Clouds: Optimizing QoE for YouTube. In KuVS 5thGI/ITG KuVS Fachgespräch NG Service Delivery Platforms, Munich, Germany, 2011.

T. Hossfeld, R. Schatz, and S. Egger. SOS: The MOS is not Enough!. In Proc. Third International Workshop on Quality of Multimedia Experience, Mechelen, Belgium, 2011. IEEE.

T. Hossfeld, S. Biedermann, R. Schatz, A. Platzer, S. Egger, and M. Fiedler. The Memory Effect and Its Implications on Web QoE Modeling. In Proc. The 23rd International Teletraffic Congress, San Francisco, 2011. IEEE.

R. Schatz and S. Egger. Vienna Surfing – Assessing Mobile Broadband Quality in the Field. In Proc. ACM SIGCOMM Workshop on Measurements Up the STack (W-MUST), Toronto, 2011. ACM, ACM.

R. Schatz and P. Reichl. Quality of Experience – Just another Buzzword?. In Proc. Euroview 2011, Würzburg, Germany, 2011.

P. Fröhlich and R. Schatz. User-centered Quality Assessment of HD IPTV Services – Results from the FP7 Project OptiBand. In Proc. EuroView 2011, Würzburg, Germany, 2011.

R. Schatz, S. Egger, and T. Hossfeld. Understanding Ungeduld – Quality of Experience Assessment and Modeling for Internet Applications. In Proc. EuroView 2011, Würzburg, Germany, 2011.

K. Masuch, R. Schatz, S. Egger, I. Holzleitner, E. Oberzaucher, and K. Grammer. The Duration Effect in Rating Studies – Quantity Instead of Quality?. In Proc. Summer Institue in Human Ethology, Prague, 2011.

K. Masuch, R. Schatz, S. Egger, I. Holzleitner, E. Oberzaucher, and K. Grammer. The Duration Effect in Rating Studies – Quantity Instead of Quality?. In Proc. Human Behavior and Evolution Society, Montpellier, 2011.

P. Reichl, B. Tuffin, and R. Schatz. Logarithmic Laws in Service Quality Perception: Where Microeconomics Meets Psychophysics and Quality of Experience. Telecommunication Systems Journal, 2011.

R. Schatz, S. Egger, and A. Platzer. Poor, Good Enough or Even Better? Bridging the Gap between Acceptability and QoE of Mobile Broadband Data Services. In Proc. ICC, Kyoto, 2011. IEEE.

R. Schatz and W. Wiedermann. Quality of Experience – An Anti-Copernican Revolution?. In Proc. 18th Radiocommunications Seminar, Ljubljana, 2011.

M. Ries, P. Fröhlich, and R. Schatz. QoE Evaluation of High-Definition IPTV Services. In Proc. 21st International Conference Radioelektronika, Brno, 2011.

K. Hoeldtke, A. Raake, S. Möller, S. Egger, R. Schatz, and N. Rohrer. ITU-T SG 12 CONTRIBUTION 189: How the Need for fast Interaction affects the Impact of Transmission Delay on the overall Quality Judgment. 2011.

S. Egger, R. Schatz, and S. Scherer. It Takes Two to Tango – Assessing The Impact of Delay on Conversational Interactivity on Perceived Speech Quality. In Proc. 11th Annual Conference of the International Speech Communication Association (Interspeech 2010), Makuhari, 2010. ISCA, ISCA.

R. Schatz, S. Egger, K. Masuch, and S. Scherer. Gain from Strain? Measuring the Influence of User Fatigue on the Quality of Subjective Ratings. In Proc. Third International Workshop on Perceptual Quality of Systems (PQS), Dresden, Germany, 2010.

P. Reichl, B. Tuffin, and R. Schatz. Economics of Logarithmic Quality-of-Experience in Communication Networks. In Proc. 9th Conference of Telecommunication, Media and Internet Techno-Economics (CTTE), Ghent, 2010.

P. Reichl, S. Egger, R. Schatz, and A. d’Alconzo. The Logarithmic Nature of QoE and the Role of the Weber-Fechner Law in QoE Assessment. In Proc. IEEE International Communications Conference (ICC) 2010, Capetown, 2010. IEEE, IEEE.

S. Egger, R. Schatz, T. B. Witek, and R. Pilz. ACE Deliverable 2.1 – Results of VoIP User Study and VoIP QoE Measurement Feasibility Analysis. FTW-TR-2010-002, 2010.

P. Fröhlich, R. Schatz, P. Leitner, S. Mantler, and M. Baldauf. Evaluating Realistic Visualizations for Safety-related In-car Information Systems. In Proc. CHI 2010 – Conference on Human Factors in Computing Systems, Atlanta, GA, 2010. ACM Press.

P. Fröhlich, R. Schatz, P. Leitner, S. Mantler, and M. Baldauf. Augmenting the Driver s View with Realtime Safety-related Traffic Information. In Proc. Augmented Human International Conference 2010, Megeve, 2010. ACM Press.

P. Fröhlich, S. Mantler, R. Schatz, and M. Baldauf. Advanced visualizations in the car: state of the art and a proposed evaluation methodology. FTW-TR-2009-004, 2010.

W. Wiedermann and R. Schatz. Demonstrating How to Launch Innovative Services Successfully. In Proc. ETSI Business Innovation Summit, Brussels, 2009. ETSI.

R. Schatz, L. Baillie, P. Fröhlich, S. Egger, and T. Grechenig. “What Are You Viewing?” – Exploring the Pervasive Social TV Experience. In Mobile TV: Customizing Content and Experience. Springer, Berlin, Germany, 2009.

P. Reichl, S. Egger, and R. Schatz. The Logarithmic Nature of QoE and the Role of the Weber-Fechner Law in QoE Assessment. FTW-TR-2009-005, 2009.

R. Schatz and T. Grechenig. Mobile Social TV – Creating a New Mobile Application Paradigm. PhD thesis, TU Vienna, INSO, 2009.

R. Schatz, A. Berger, and N. Jordan. Mobile TV Research Made Easy: The AMUSE 2.0 Open Platform for Interactive DVB-H/3G Services. International Journal on Advances in Telecommunications, Vol 1, Issue 1, 2009.

A. Berger, L. Pallara, and R. Schatz. An Open Source Software Framework for DVB-* Transmission. In Proc. ACM International Conference on Multimedia, Vancouver, 2008.

R. Schatz, A. Bär, and A. Berger. Matching Content to the Mobile User – Smart Recommendations for Pervasive TV and Video. In Proc. FIS 2008 Future Internet Symposium, Vienna, 2008.

A. Bär, A. Berger, S. Egger, and R. Schatz. A Lightweight Mobile TV Recommender. Towards a One-Click-to-Watch Experience. In Changing Television Environments, volume 5066/2008, pages 143–147. Springer, Berlin / Heidelberg, Lecture Notes in Computer Science edition, 2008.

A. Berger and R. Schatz. AMUSE 2.0 – An Interactive Mobile TV Platform for DVB-H/UMTS Networks. In Proc. EuroITV’2008, Salzburg, 2008.

R. Schatz, L. Baillie, P. Fröhlich, and S. Egger. Getting the Couch Potato to Engage in Conversation: Social TV in a Converging Media Environment. In Proc. “Sharing Content and Experiences with Social Interactive Television”-Workshop at EuroITV’2008, Salzburg, 2008.

R. Schatz and S. Egger. Social interaction features for mobile TV services. In Proc. IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, 2008, Las Vegas, pages 1–6, 2008.

R. Schatz, W. Wiedermann, R. Ochenbauer, and I. Miladinovic. Interaktives Fernsehen auf dem Handy: die AMUSE 2.0-Plattform für DVB-H Mobile TV-Services der nächsten Generation. e & i Elektrotechnik und Informationstechnik, 124(10):328–336, 2007.

R. Schatz, S. Wagner, and A. Berger. AMUSE – A Platform for Prototyping Live Mobile TV Services. In Proc. 16th IST Mobile Summit, Budapest, Hungary, July, 2007, Budapest, 2007. IEEE Computer Society.

R. Schatz, S. Wagner, and N. Jordan. Mobile Social TV: Extending DVB-H Services with P2P-Interaction. In Proc. International Conference on Digital Telecommunications (IEEE), Silicon Valley, 2007.

R. Schatz, S. Wagner, S. Egger, and N. Jordan. Mobile TV Becomes Social – Integrating Content with Communications. In Proc. 29th International Conference on Information Technology Interfaces, 2007. ITI 2007, Cavtat, pages 263–270, 2007.

P. Fröhlich, L. Baillie, and R. Schatz. Exploring Social TV. In Proc. the Proceedings of Information Technology Interfaces (IEEE), Dubrovnik, 2007.

R. Schatz, S. Wagner, and N. Jordan. Mobile TV becomes Social – Integrating Content with Communications. In Proc. Information Technology Interfaces (IEEE), Dubrovnik, 2007.

P. Reichl, P. Fröhlich, L. Baillie, R. Schatz, and A. Dantcheva. The LiLiPUT Prototype: A Wearable Lab Environment for User Tests of Mobile Telecommunication Applications. In Proc. CHI 2007 Conference on Human Factors in Computing Systems, San Jose (CA), 2007.

R. Schatz, N. Jordan, and S. Wagner. Beyond Broadcast – A Hybrid Testbed for Mobile TV 2.0 Services. In Proc. International Conference on Digital Networking (IEEE), Sainte-Luce, Martinique, 2007.

P. Fröhlich, P. Reichl, R. Schatz, L. Baillie, W. Weinberger, and F. Hammer. LiLiPUT – Lightweight Lab Equipment for User Testing in Telecommunications. In Proc. BCS HCI 2006, British HCI conference: ENGAGE, London, 2006.

N. Jordan and R. Schatz. Broadcast Television Services Suited for Mobile Handheld Devices. In Proc. International Conference on Digital Telecommunications 2006, Cap Esterel, 2006.

P. Fröhlich, L. Baillie, P. Reichl, R. Schatz, F. Hammer, and G. Niklfeld. The HTI Lab @ FTW: User Research for Telecom Systems. In Proc. CHI 2006, Conference on Human Factors in Computing Systems, Montréal, 2006.

L. Baillie and R. Schatz. A Lightweight, User-Controlled System for the Home. Human Technology Journal, 2(1):84–102, 2006.

P. Fröhlich, L. Baillie, and R. Schatz. Exporing the Joint iTV Experience. FTW-TR-2006-005, 2006.

L. Baillie and R. Schatz. Exploring Multimodality in the Laboratory and the Field. In Proc. Seventh International Conference on Multimodal Interfaces, Trento, 2005.

P. Fröhlich, O. Jorns, and R. Schatz. Considering Context in Mobile Ticketing. In Proc. Mobile HCI 05 (International Workshop on Context in Mobile HCI), Salzburg, 2005.

R. Schatz, R. Simon, H. Anegg, F. Wegscheider, and G. Niklfeld. Developing Mobile Multimodal Applications. In Proc. HCI 2005, Edinburgh, 2005.

L. Baillie, R. Schatz, R. Simon, H. Anegg, F. Wegscheider, G. Niklfeld, and A. Gassner. Designing Mona: User Interactions with a Multimodal Mobile Game. In Proc. Invited Paper at HCI International 2005, Las Vegas, 2005.

L. Baillie and R. Schatz. The Design Evolution of Two Multimodal Mobile Applications. In Proc. HCI International, Las Vegas, 2005.

L. Baillie, R. Simon, R. Schatz, F. Wegscheider, and H. Anegg. Gathering Requirements for Multimodal Mobile Applications. In Proc. the 27th International Conference on Information Technology Interfaces, Split, 2005.

G. Niklfeld, H. Anegg, M. Jank, G. Pospischil, M. Pucher, R. Schatz, R. Simon, and F. Wegscheider. Device independent multimodal user interfaces with the MONA Multimodal Presentation Server. In Proc. EURESCOM Summit 2005, Heidelberg, 2005.

H. Anegg, T. Dangl, M. Jank, G. Niklfeld, and R. S. R. S. F. Wegscheider, M. Pucher. Multimodal Interfaces in Mobile Devices – The MONA Project. In Proc. MobEA II – Emerging Applications for Wireless and Mobile Access Workshop, at the 13th International World Wide Web Conference, New York City, 2004.

Brettlecker, H. Schuldt and R. Schatz, “Hyperdatabases for peer-to-peer data stream processing,” Web Services, 2004. Proceedings. IEEE International Conference on, 2004, pp. 358-366.