Publications

P. Halvorsen, S. Særgrov, A. Mortensen, D. Kai Christen Kristensen, A. Eichhorn, M. Stenhaug, S. Dahl, H. K. Stensland, V. R. Gaddam, C. Griwodz, and D. Johansen. Bagadus: An Integrated System for Arena Sports Analytics – A Soccer Case Study –, In: Proceedings of the 4th annual ACM conference on Multimedia Systems (MMSYS), ed. by Roger Zimmermann, pp. 48-59, ACM (ISBN: 978-1-4503-1894-5), 2013.

M. Tennøe, E. O. Helgedagsrud, M. Næss, H. K. Alstad, H. K. Stensland, P. Halvorsen, and C. Griwodz. Real­time Panorama Video Processing Using NVIDIA GPUs, GPU Technology Conference, 2013.

M. Claypool and C. Griwodz. Proceedings of the 3rd Multimedia Systems Conference, ACM(ISBN: 978-1-4503-1131-1), 2012.

D. Dwarakanath, A. Eichhorn, P. Halvorsen, and C. Griwodz. Evaluating Performance of Feature Extraction Methods for Practical 3D Imaging Systems, In: 27th International Conference Image and Vision Computing New Zealand, ed. by IVCNZ, ACM - International Conference Proceedings Series (ICPS), 2012.

H. Espeland, P. N. Olsen, P. Halvorsen, and C. Griwodz. Low-level Scheduling Implications for Data-intensive Cyclic Workloads on Modern Microarchitectures, In: The 41st International Conference on Parallel Processing Workshops, ed. by Pavan Balaji and Heshan Lin, IACC, IEEE (ISBN: 978-0-7695-4795-4), 2012.

T. Kupka, P. Halvorsen, and C. Griwodz. Performance of On-Off Traffic Stemming From Live Adaptive Segmented HTTP Video Streaming, In: Proceedings of the IEEE Conference on Local Computer Networks (LCN), ed. by N/A, pp. 405-413, IEEE, IEEE, 2012.

K. Raaen, H. Espeland, H. Stensland, A. Petlund, P. Halvorsen, and C. Griwodz. LEARS: A Lockless, Relaxed-Atomicity State Model for Parallel Execution of a Game Server Partition, In: The 41st International Conference on Parallel Processing Workshops, ed. by Pavan Balaji and Heshan Lin, IACC, IEEE (ISBN: 978-0-7695-4795-4), 2012.

H. Riiser, H. Bergsaker, P. Vigmostad, P. Halvorsen, and C. Griwodz. A Comparison of Quality Scheduling in Commercial Adaptive HTTP Streaming Solutions on a 3G Network, In: Proceeding of the ACM Workshop on Mobile Video (MoVid), ed. by N/A, pp. 25-30, ACM, 2012.

S. Sægrow, A. Eichhorn, J. Emerslund, H. K. Stensland, C. Griwodz, and P. Halvorsen. BAGADUS: An Integrated System for Soccer Analysis, In: Proceedings of the International Conference on Distributed Smart Cameras (ICDSC), ed. by N/A, ACM/IEEE, 2012.

C. Griwodz. Perceived audiovisual synchrony in distorted speech, COST IC 1003, Fourth Qualinet General Meeting, Zagreb, Oct. 11, 2012.

C. Griwodz. Media Performance: building and evaluating multimedia systems, Academica Sinica, Taipeh, Taiwan, November 6, 2012.

C. Griwodz. Media Performance: building and evaluating multimedia systems, National Tsing Hue University, Hsinchu, Taiwan, November 7, 2012.

C. Timmerer and C. Griwodz. Dynamic Adaptive Streaming over HTTP – From Content Creation to Consumption, Tutorial, ACM Multimedia 2012, Nara, Japan, 2012.

K. R. Evensen, D. Kaspar, C. Griwodz, P. Halvorsen, A. F. Hansen, and P. E. Engelstad. Using bandwidth aggregation to improve the performance of quality-adaptive streaming, Signal Processing: Image Communication 27(4):312–328, 2011.

D. Johansen, P. Halvorsen, H. Johansen, H. Riiser, C. Gurrin, B. Olstad, C. Griwodz, Å. Kvalnes, J. Hurley, and T. Kupka. Search-based composition, streaming and playback of video archive content, Multimedia Tools and Applications(online first), 2011.

H. Riiser, T. Endestad, P. Vigmostad, C. Griwodz, and P. Halvorsen. Video Streaming Using a Location-based Bandwidth-Lookup Service for Bitrate Planning, ACM Transactions on Multimedia Computing, Communications and Applications (TOMCCAP) - accepted for publication February 2011 8(3), 2011.

P. Beskow, H. K. Stensland, H. Espeland, E. A. Kristiansen, P. N. Olsen, S. B. Kristoffersen, C. Griwodz, and P. Halvorsen. Processing of Multimedia Data using the P2G Framework, In: Proceedings of the 19th ACM international conference on Multimedia, ed. by Hari Sundaram, Wu-Chi Feng, Nicu Sebe, pp. 819-820, ACM, 2011.

H. Espeland, P. Beskow, H. K. Stensland, P. N. Olsen, S. B. Kristoffersen, C. Griwodz, and P. Halvorsen. P2G: A Framework for Distributed Real-Time Processing of Multimedia Data, In: Proceedings of the International Workshop on Scheduling and Resource Management for Parallel and Distributed Systems (SRMPDS) - The 2011 International Conference on Parallel Processing Workshops, ed. by Jang-Ping Sheu and Cho-Li Wang, pp. 416-426, IEEE, 2011.

K. R. Evensen, D. Kaspar, C. Griwodz, P. Halvorsen, A. F. Hansen, and P. E. Engelstad. Improving the Performance of Quality-Adaptive Video Streaming over Multiple Heterogeneous Access Networks, In: Proceedings of the second annual ACM conference on Multimedia systems (MMSYS), ed. by Ali C. Begen, Ketan Mayer-Patel, pp. 57-68, ACM, ACM, 2011.

K. R. Evensen, D. Kaspar, A. F. Hansen, C. Griwodz, and P. Halvorsen. Using Multiple Links to Increase the Performance of Bandwidth-Intensive UDP-Based Applications, In: Proceedings of IEEE ISCC 2011, ed. by Adel S. Elmaghraby and Christos Douligeris, vol. 16, pp. 1117-1122, IEEE, IEEE, 2011.

K. R. Evensen, A. Petlund, D. Kaspar, C. Griwodz, P. Halvorsen, H. Riiser, and P. Vigmostad. Demo: Quality-Adaptive Video Streaming With Dynamic Bandwidth Aggregation on Roaming, Multi-Homed Clients, In: Proceedings of the 9th international conference on Mobile systems, applications, and services (MOBISYS), ed. by Ashok Agrawala, pp. 355-356, ACM, New York, ACM, 2011.

K. R. Evensen, A. Petlund, H. Riiser, P. Vigmostad, D. Kaspar, C. Griwodz, and P. Halvorsen. Mobile video streaming using location-based network prediction and transparent handover, In: NOSSDAV, ed. by Charles 'Buck' Krasic and Kang Li, pp. 21-26, ACM, New York, ACM, 21 ed, 2011.

T. Kupka, C. Griwodz, and P. Halvorsen. An Evaluation of Live Adaptive HTTP Segment Streaming Request Strategies, In: Proceedings of the IEEE Conference on Local Computer Networks (LCN), ed. by Tom Pfeifer, Anura Jayasumana, pp. 608-616, IEEE, 2011.

P. Ni, R. Eg, A. Eichhorn, C. Griwodz, and P. Halvorsen. Flicker Effects in Adaptive Video Streaming to Handheld Devices, In: Proceedings of the ACM International Multimedia Conference (ACM MM), ed. by Hari Sundaram, Wu-Chi Feng, & Nicu Sebe, pp. 463-472, ACM, 2011.

P. Ni, R. Eg, A. Eichhorn, C. Griwodz, and P. Halvorsen. Spatial Flicker Effect in Video Scaling, In: Proceedings of the International Workshop on Quality of Multimedia Experience (QoMEX), ed. by Gabriel Cristobal, An Jacobs, Alexander Raake, pp. 55 - 60 , IEEE, 2011.

K. Raaen, H. Espeland, H. K. Stensland, A. Petlund, P. Halvorsen, and C. Griwodz. A Demonstration Of a Lockless, Relaxed Atomicity State Parallel Game Server (LEARS), In: Workshop on Network and Systems Support for Games (NetGames 2011), ed. by Shervin Shirmohammadi, pp. 1-3, IEEE / ACM, 2011.

H. Riiser, P. Vigmostad, C. Griwodz, and P. Halvorsen. Bitrate and video quality planning for mobile streaming scenarios using a GPS-based bandwidth lookup service, In: Proceedings of the IEEE International Conference on Multimedia and Expo (ICME), ed. by , pp. 1-6, IEEE, 2011.

P. Beskow, H. Espeland, H. K. Stensland, P. N. Olsen, S. B. Kristoffersen, E. A. Kristiansen, C. Griwodz, and P. Halvorsen. Distributed Real-Time Processing of Multimedia Data with the P2G Framework, EuroSys 2011, 2011.

P. Beskow, A. Petlund, G. Erikstad, C. Griwodz, and P. Halvorsen. Reducing game latency by migration, core-selection and TCP modifications, Inderscience International Journal of Advanced Media and Communication (IJAMC) 4(4):343-363, 2010.

F. T. Johnsen, T. Hafsøe, A. Eggen, C. Griwodz, and P. Halvorsen. Web Services Discovery across Heterogeneous Military Networks, IEEE Communications Magazine 48(10):84-90, 2010.

Å. Kvalnes, D. Johansen, C. Griwodz, and P. Halvorsen. Support for enterprise consolidation of I/O bound services, Wiley Software: Practice and Experience 40(10):1035 - 1051, 2010.

P. Ni, A. Eichhorn, C. Griwodz, and P. Halvorsen. Frequent layer switching for perceived quality improvements of coarse-grained scalable video, Springer Multimedia Systems Journal 16(3):171-182, 2010.

Z. Vrba, P. Halvorsen, C. Griwodz, P. Beskow, H. Espeland, and D. Johansen. The Nornir run-time system for parallel programs using Kahn process networks on multi-core machines - A flexible alternative to MapReduce, The Journal of Supercomputing, Springer(Online first):1-27, 2010.

S. Boudko, W. Leister, C. Griwodz, and P. Halvorsen. Maximizing video quality for several unicast streams in a multipath overlay network, In: Proceedings of International Conference on Internet Multimedia Systems Architecture and Application (IMSAA), ed. by Ashutosh Dutta, Sanjoy Paul, IEEE, 2010.

K. R. Evensen, T. Kupka, D. Kaspar, P. Halvorsen, and C. Griwodz. Quality-Adaptive Scheduling for Live Streaming over Multiple Access Networks, In: The 20th International Workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV 2010), ed. by Dick C. A. Bulterman, pp. 21-26, ACM, 2010.

E. Jacobsen, C. Griwodz, and P. Halvorsen. Pull-Patching: A Combination of Multicast and Adaptive Segmented HTTP Streaming, In: Proceedings of the International Conference on Multimedia (ACM MM), ed. by Alberto Del Bimbo and Shih-Fu Chang and Arnold W. M. Smeulders, pp. 799-802, ACM, 2010.

D. Johansen, H. Johansen, P. Halvorsen, B. Olstad, C. Gurrin, and C. Griwodz. Composing Personalized Video Playouts Using Search, In: Proceedings of the International Workshop on Visual Content Identification and Search (VCIDS) - ICME workshops, ed. by Jian Lu and Xian-Sheng Hua and China Dong Xu, pp. 1534-1539, IEEE, 2010.

D. Kaspar, K. R. Evensen, P. E. Engelstad, A. F. Hansen, P. Halvorsen, and C. Griwodz. Enhancing Video-on-Demand Playout over Multiple Heterogeneous Access Networks, In: Consumer Communications and Networking Conference (CCNC), ed. by IEEE, IEEE, 2010.

H. Riiser, P. Halvorsen, C. Griwodz, and D. Johansen. Low Overhead Container Format for Adaptive Streaming, In: Proceedings of the ACM Multimedia Systems (MMSys), ed. by Wu-chi Feng, Ketan Mayer-Patel, pp. 193-198, ACM, 2010.

H. K. Stensland, H. Espeland, C. Griwodz, and P. Halvorsen. Tips, Tricks and Troubles: Optimizing for Cell and GPU, In: The 20th International Workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV 2010), ed. by Dick C. A. Bulterman, pp. 75-80, ACM, 2010.

H. K. Stensland, M. Myrseth, C. Griwodz, and P. Halvorsen. Cheat Detection Processing: A GPU versus CPU Comparison, In: Workshop on Network and Systems Support for Games (NetGames 2010), ed. by Adrian Cheok and Jiung-Yao Huang and Yutaka Ishibashi, pp. 8:1--8:6, ACM IEEE, 2010.

Z. Vrba, P. Halvorsen, and C. Griwodz. A simple improvement of the work-stealing scheduling algorithm, In: Proceedings of the International Conference on Complex, Intelligent and Software Intensive Systems (CISIS) - International Workshop on Multi-Core Computing Systems (MuCoCoS), Krakow, Poland, February 2010, ed. by N/A, pp. 925-930, N/A, 2010.

Z. Vrba, P. Halvorsen, and C. Griwodz. Program obfuscation by strong cryptography, In: Proceedings of the International Conference on Availability, Reliability and +Security (ARES), Krakow, Poland, February 2010, ed. by N/A, pp. 242-247, N/A, 2010.

A. Petlund, P. Halvorsen, and C. Griwodz. Latency Can Kill - Defeat The Lag!, The Gathering World & Pegasus, 2010.

H. K. Stensland, H. Espeland, C. Griwodz, and P. Halvorsen. Temming av multikjerneprosessorer – Fordeler og utfordringer, The Gathering World & Pegasus, 2010.

P. Beskow, Knut-H. Vik, P. Halvorsen, and C. Griwodz. The Partial Migration of Game State and Dynamic Server Selection to Reduce Latency, Springer’s Multimedia Tools and Applications 45(1-3):83 - 107, 2009.

A. Petlund, P. Beskow, J. Pedersen, E. S. Paaby, C. Griwodz, and P. Halvorsen. Improving SCTP Retransmission Delays for Time-Dependent Thin Streams, Springer’s Multimedia Tools and Applications 45(1-3):33-60, 2009.

P. Beskow, G. Erikstad, P. Halvorsen, and C. Griwodz. Evaluating Ginnungagap: a middleware for migration of partial game-state utilizing core-selection for latency reduction, In: Proceedings of the workshop on Network and System Support for Games (NetGames), ed. by Maha Abdallah, pp. 1-6, IEEE, 2009.

K. R. Evensen, D. Kaspar, P. E. Engelstad, A. F. Hansen, C. Griwodz, and P. Halvorsen. A Network-Layer Proxy for Bandwidth Aggregation and Reduction of IP Packet Reordering, In: The 34rd Annual IEEE Conference on Local Computer Networks (LCN), ed. by N/A, pp. 585 - 592, IEEE, 2009.

D. Kaspar, K. R. Evensen, A. F. Hansen, P. E. Engelstad, P. Halvorsen, and C. Griwodz. An Analysis of the Heterogeneity and IP Packet Reordering over Multiple Wireless Networks, In: IEEE Symposium on Computers and Communications (ISCC), ed. by ISCC, pp. 637-642, IEEE, 2009.

P. Ni, A. Eichhorn, C. Griwodz, and P. Halvorsen. Fine-Grained Scalable Streaming from Coarse-Grained Videos, In: International Workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV), ed. by Wei Tsang Ooi, Dongyan Xu, pp. 103-108, ACM, ACM, 2009.

P. Ni, F. Gaarder, C. Griwodz, and P. Halvorsen. Video Streaming into Virtual Worlds: the effects of virtual screen distance and angle on perceived quality, In: ACM Multimedia Conference, ed. by Wen Gao, Yong Rui, Alan Hanjalic, Changsheng Xu, Eckehard Steinbach, Abdulmotaleb El Saddik, Michelle Zhou, pp. 885-888, ACM, ACM, 2009.

Knut-H. Vik, C. Griwodz, and P. Halvorsen. On the Influence of Latency Estimation on Dynamic Group Communication using Overlays, In: Proceedings of Multimedia Computing and Networking (MMCN), ed. by Reza Rejaie, Ketan Mayer-Patel, vol. 7253, SPIE, 2009.

Z. Vrba, P. Beskow, P. Halvorsen, and C. Griwodz. Kahn process networks are a flexible alternative to MapReduce, In: Proceedings of 11th IEEE International Conference on High Performance Computing and Communications (HPCC), ed. by NA, pp. 154-162, IEEE Computer Society, 2009.

Z. Vrba, H. Espeland, P. Halvorsen, and C. Griwodz. Limits of work-stealing scheduling, In: Job Scheduling Strategies for Parallel Processing (14th International Workshop, 2009), ed. by Eitan Frachtenberg and Uwe Schwiegelshohn, pp. 280-299, Springer Berlin / Heidelberg, 2009.

Z. Vrba, P. Halvorsen, and C. Griwodz. Evaluating the run-time performance of Kahn process network implementation techniques on shared-memory multiprocessors, In: Complex, Intelligent and Software Intensive Systems, International Conference, ed. by NA, pp. 639-644, IEEE Computer Society, 2009.

Z. Vrba, P. Halvorsen, C. Griwodz, P. Beskow, and D. Johansen. The Nornir run-time system for parallel programs using Kahn process networks, In: Proceedings of 6th International Conference on Network and Parallel Computing (NPC), ed. by NA, pp. 1-8, IEEE Computer Society, 2009.

C. Griwodz and P. Halvorsen. RELAY - On the Performance and Resource Utilization of Time-Dependent Large-Scale Distributed Systems, In: Simula Research Laboratory - by thinking constantly about it, ed. by Aslak Tveito, Are Magnus Bruaset, Olav Lysne. Springer, Heidelberg, chap. 17, pp. 199-236, 2009.

C. Griwodz and O. Lysne. Networks and Distributed Systems - Why, What, How and What's Next, In: Simula Research Laboratory - by thinking constantly about it, ed. by Aslak Tveito, Are Magnus Bruaset, Olav Lysne. Springer, Heidelberg, chap. 13, pp. 123-128, 2009.

C. Griwodz and L. Wolf. Proceedings of the 18th International Workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV), ACM(ISBN: 978-1-60588-157-6), 2008.

K. R. Evensen, A. Petlund, C. Griwodz, and P. Halvorsen. Redundant Bundling in TCP to Reduce Perceived Latency for Time-Dependent Thin Streams, IEEE Communications Letters 12(4):334 -- 336, 2008.

Knut-H. Vik, P. Halvorsen, and C. Griwodz. Evaluating Steiner tree heuristics and diameter variations for Application Layer Multicast, Elsevier Computer Networks 52(15):2872-2893, 2008.

P. B. Beskow, Knut-H. Vik, P. Halvorsen, and C. Griwodz. Latency Reduction by Dynamic Core Selection and Partial Migration of Game State , In: Proceedings of Workshop on Network and Systems Support for Games (NetGames), ed. by Mark Claypool, pp. 79-84, ACM (ISBN: 978-1-60558-132-3), 2008.

S. Boudko, W. Leister, C. Griwodz, and P. Halvorsen. A Benchmarking System for Multipath Overlay Multimedia Streaming, In: IEEE International Conference on Multimedia & Expo (ICME), ed. by Jörn Ostermann, Touradj Ebrahimi, Milind Naphade, Frank Fitzek, Susanto Rahardja, Bodo Rosenhahn, Arnold Smeulders, pp. 853 - 856, IEEE, 2008.

H. Espeland, C. H. Lunde, H. K. Stensland, C. Griwodz, and P. Halvorsen. Transparent Protocol Translation and Load Balancing on a Network Processor in a Media Streaming Scenario, In: Network and Operating System Support for Digital Audio and Video (NOSSDAV 2008), ed. by Carsten Griwodz and Lars Wolf, pp. 129-130, ACM (ISBN: 978-1-60588-157-6), 2008.

W. Leister, T. Sutinen, S. Boudko, I. Marsh, C. Griwodz, and P. Halvorsen. An Architecture for Adaptive Multimedia Streaming to Mobile Nodes, In: Proceedings of International Conference on Advances in Mobile Computing & Multimedia (MoMM), ed. by Gabriele Kotsis, David Taniar, Eric Pardede, Ismail Khalil, pp. 313-316, ACM, 2008.

A. Petlund, K. Evensen, C. Griwodz, and P. Halvorsen. TCP mechanisms for improving the user experience for time-dependent thin-stream applications, In: The 33rd Annual IEEE Conference on Local Computer Networks (LCN), ed. by Ehab Elmallah, Mohamed Younis, Chun Tung Chou, IEEE, 2008.

A. Petlund, K. Evensen, P. Halvorsen, and C. Griwodz. Improving application layer latency for reliable thin-stream game traffic , In: Netgames, Worcester, Ma. US, 2008, ed. by Mark Claypool, Association for Computing Machinery (ACM), 2008.

A. Petlund, K. R. Evensen, C. Griwodz, and P. Halvorsen. TCP Enhancements For Interactive Thin-Stream Applications, In: Network and Operating Systems Support for Digital Audio and Video (NOSSDAV 2008), ed. by Carsten Griwodz and Lars Wolf, pp. 127-128, ACM (ISBN: 978-1-60588-157-6), 2008.

A. Petlund, K. R. Evensen, C. Griwodz, and P. Halvorsen. Latency reducing TCP modifications for thin-stream interactive applications, In: UpTimes - Magazine of the German Unix User Group (Proceedings of Linux Kongress 2008), ed. by W. Stief, pp. 150-154, German Unix User Group, Bachemer Str. 12, 50931 Köln, German Unix User Group (ISBN: 978-3-86541-300-0), 2008.

H. Riiser, P. Halvorsen, C. Griwodz, and B. Hestnes. Performance Measurements and Evaluation of Video Streaming in HSDPA Networks With 16QAM Modulation, In: IEEE International Conference on Multimedia & Expo (ICME), ed. by Jörn Ostermann, Touradj Ebrahimi, Milind Naphade, Frank Fitzek, Susanto Rahardja, Bodo Rosenhahn, Arnold Smeulders, IEEE (ISBN: 978-1-4244-2570-9), 2008.

H. K. Stensland, C. Griwodz, and P. Halvorsen. Evaluation of Multi-Core Scheduling Mechanisms for Heterogeneous Processing Architectures, In: Network and Operating System Support for Digital Audio and Video (NOSSDAV 2008), ed. by Carsten Griwodz and Lars Wolf, pp. 33-38, ACM (ISBN: 978-1-60588-157-6), 2008.

Knut-H. Vik, C. Griwodz, and P. Halvorsen. Constructing Low-Latency Overlay Networks: Tree vs. Mesh Algorithms, In: Proceedings of IEEE Conference on Local Computer Networks (LCN), ed. by Ehab Elmallah, Mohamed Younis, Chun Tung Chou, pp. 36-43, IEEE (ISBN: 978-1-4244-2412-2), 2008.

Knut-H. Vik, P. Halvorsen, and C. Griwodz. Multicast tree diameter for dynamic distributed interactive applications, In: IEEE International Conference on Computer Communications - IEEE INFOCOM, ed. by Douglas Merill, Debanjan Saha, Jennifer C. Hou, Shivkumar Kalyanaraman, Krishna Sivalingam, pp. 1597-1605, IEEE, 27th ed. (ISBN: 0743-166X), 2008.

D. Kaspar, A. F. Hansen, and C. Griwodz. Multilink Transfer over Heterogeneous Networks, IEEE International Conference on Network Protocols (ICNP), Poster Session, Poster, 2008.

C. Griwodz and R. Zimmermann. Multimedia Computing and Networking 2007, SPIE, Bellingham, WA, USA, 2007.

P. Halvorsen, T. A. Dalseng, and C. Griwodz. Assessment of Linux' Data Path Components for Download and Streaming, The International Journal of Software Engineering and Knowledge Engineering 17(4):456--481, 2007.

P. Beskow, P. Halvorsen, and C. Griwodz. Latency Reduction in Massively Multi-player Online Games by Partial Migration of Game State, In: Second International Conference on Internet Technologies and Applications, ed. by Vic Grout, Denise Oram and Rich Picking, pp. 153--163, University of Wales, NEWI, Wrexham, UK., Centre for Applied Internet Research (CAIR), 2007.

E. Birkedal, C. Griwodz, and P. Halvorsen. Implementation and Evaluation of Late Data Choice for TCP in Linux, In: IEEE International Symposium on Multimedia (ISM2007), ed. by ?, pp. 221 -- 228, 10662 Los Vaqueros Circle, P.O. Box 3014, Los Alamitos, CA 90720-1314, IEEE Computer Society, 2007.

H. Espeland, C. H. Lunde, H. K. Stensland, C. Griwodz, and P. Halvorsen. Transparent Protocol Translation for Streaming, In: ACM International Multimedia Conference (ACM MM), ed. by Rainer Lienhart and Anand R. Prasad, pp. 771 - 774, ACM, 2007.

S. Harcsik, A. Petlund, C. Griwodz, and P. Halvorsen. Latency Evaluation of Networking Mechanisms for Game Traffic, In: Network & System Support for Games (NetGames 2007), ed. by Grenville Armitage, pp. 129--134, ACM, 2007.

F. T. Johnsen, T. Hafsøe, C. Griwodz, and P. Halvorsen. Workload Characterization for News-on-Demand Streaming Services, In: International Performance Computing and Communications Conference (IPCCC), ed. by ?, pp. 314-323, IEEE, 2007.

Knut-H. Vik, C. Griwodz, and P. Halvorsen. Dynamic Group Membership Management for Distributed Interactive Applications, In: 32nd IEEE Conference on Local Computer Networks (LCN), ed. by Ken Christensen and Matthias Frank, pp. 141--148, IEEE, 2007.

S. Chandra and C. Griwodz. Multimedia Computing and Networking 2006, SPIE, Bellingham, WA, USA, 2006.

C. Griwodz and P. Halvorsen. The Fun of using TCP for an MMORPG, In: Network and Operating System Support for Digital Audio and Video (NOSSDAV 2006), ed. by Brian Neil Levine and Mark Claypool, pp. 1--7, ACM Press, 2006.

C. Griwodz, F. T. Johnsen, S. Rekkedal, and P. Halvorsen. Caching of Interactive Multiple Choice MPEG-4 Presentations, In: International Workshop on Multimedia Systems and Networking (WMSN 2006), ed. by Hossam Hassanein and Golden G. Richards III, pp. 659--666, IEEE, 25th ed, 2006.

C. Griwodz, Knut-H. Vik, and P. Halvorsen. Multicast Tree Reconfiguration in Distributed Interactive Applications , In: Networking Issues in Multimedia Entertainment (NIME 2006), ed. by Marco Roccetti and Giovanni Pau and Abdennour El-Rhalibi, pp. 1219--1223, IEEE, 2006.

P. Halvorsen, Ø. Y. Sunde, A. Petlund, and C. Griwodz. Programmable Subsystems: A Traffic Shaping & Packet Prioritizing Case Study , In: International Network Conference (INC 2006), ed. by Steven Furnell and Paul Dowland, pp. 97--104, University of Plymouth, 2006.

F. T. Johnsen, T. Hafsøe, and C. Griwodz. Analysis of Server Workload and Client Interactions in a News-on-Demand Streaming System, In: International Symposium on Multimedia (ISM 2006), ed. by Philipp Sheu and Max Mühlhäuser and Kinji Mori, pp. 724--727, IEEE, 2006.

C. Majewski, C. Griwodz, and P. Halvorsen. Translating Latency Requirements into Resource Requirements for Game Traffic, In: International Network Conference (INC 2006), ed. by Steven Furnell and Paul Dowland, pp. 113--120, University of Plymouth, 2006.

W. Palant, C. Griwodz, and P. Halvorsen. Evaluating dead reckoning variations with a multi-player game simulator, In: Network and Operating System Support for Digital Audio and Video (NOSSDAV 2006), ed. by Brian Neil Levine and Mark Claypool, pp. 20--25, ACM Press, 2006.

W. Palant, C. Griwodz, and P. Halvorsen. Consistency requirements in Multiplayer Online Games, In: Network & System Support for Games (NetGames 2006), ed. by Adrian David Cheok, Yutaka Ishibashi, Stephane Natkin and Keiichi Yasumoto, pp. 1--4, ACM Press, 2006.

W. Palant, C. Griwodz, and P. Halvorsen. GLS: Simulator for Online Multi-Player Games, In: ACM Multimedia (MM 2006), ed. by Kenji Mase, pp. 805--806, ACM Press, 2006.

J. Pedersen, C. Griwodz, and P. Halvorsen. Considerations for SCTP Retransmission Delays for Thin Streams, In: Local Computer Networks (LCN 2006), ed. by Ken Christensen and Matthias Frank, pp. 135 -- 142, IEEE, 2006.

Knut-H. Vik, C. Griwodz, and P. Halvorsen. Applicability of Group Communication for Increased Scalability in MMOGs, In: Network & System Support for Games (NetGames 2006), ed. by Adrian David Cheok, Yutaka Ishibashi, Stephane Natkin and Keiichi Yasumoto, pp. 1--12, ACM Press, Fifth ed, 2006.

S. L. Amundsen, K. Lund, C. Griwodz, and P. Halvorsen. QoS-aware Mobile Middleware for Video Streaming, In: 31st EUROMICRO Conference on Software Engineering and Advanced Applications (SEAA), Portugal August 30-September 3 , pp. 54-61, IEEE Computer Society, 2005.

P. Halvorsen, T. A. Dalseng, and C. Griwodz. Assessment of Data Path Implementations for Download and Streaming, In: International Conference on Distributed Multimedia Systems (DMS), ed. by Shi-Kuo Chang and Timothy Arndt, pp. 228--233, 3420 Main Street, Skokie, IL 60076, USA, Knowledge Systems Institute, 2005.

Ø. Hvamstad, C. Griwodz, and P. Halvorsen. Offloading Multimedia Proxies using Network Processors, In: International Network Conference (INC), ed. by S. M. Furnell and P. S. Dowland and G. Kormentzas, pp. 113--120, University of Plymouth, 2005.

C. Griwodz, S. Fiksdal, and P. Halvorsen. Translating Scalable Video Streams from Wide-Area to Access Networks, Campus Wide Information Systems 21(5):205--210, 2004.

P. Halvorsen, C. Griwodz, V. Goebel, K. Lund, T. Plagemann, and J. Walpole. Storage System Support for Continuous-Media Applications, Part 1: Requirements and Single-Disk Issues, IEEE Distributed Systems Online 5(1), 2004.

P. Halvorsen, C. Griwodz, V. Goebel, K. Lund, T. Plagemann, and J. Walpole. Storage System Support for Continuous-Media Applications, Part 2: Multiple Disks, Memory, and Integration, IEEE Distributed Systems Online 5(2), 2004.

M. Zink, J. Schmitt, and C. Griwodz. Layer-encoded video streaming: A proxy's perspective , IEEE Communications Magazine 42(8):96--103, 2004.

C. Griwodz. Movie Placement in a Hierarchical CDN with Stream Merging Mechanisms, In: Proceedings of SPIE/ACM Conference on Multimedia Computing and Networking (MMCN), ed. by Nalini Venkatasubramanian, pp. 1--15, SPIE, 2004.

C. Griwodz, S. Fiksdal, and P. Halvorsen. Translating Scalable Video Streams from Wide-Area to Access Networks, In: Proceedings of the International Network Conference (INC'04), ed. by Steven M. Furnell and Paul S. Dowland, pp. 102--110, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK, Network Research Group, 2004.

F. T. Johnsen, C. Griwodz, and P. Halvorsen. Structured Partially Caching Proxies for Mixed Media, In: Web Content Caching and Distribution: 9th International Workshop, ed. by Chi-Hung Chi and Maarten van Steen and Craig E. Wills, pp. 144--153, Springer. Lecture Notes in Computer Science, 2004.

T. Plagemann, V. Goebel, C. Griwodz, and P. Halvorsen. Towards Middleware Services for Ad-Hoc Network Applications, In: Proceedings of the Workshop on Future Trends of Distributed Computing Systems (FTDCS), pp. 249--257, 2003.

T. Plagemann, V. Goebel, C. Griwodz, P. Halvorsen, L. Mathey, N. Race, and M. Zink. Towards Scalable and Affordable Content Distribution Services, In: Proceedings of the International Conference on Telecommunications (ConTEL), ed. by Maja Matijasevic and Igor S. Pandzic, pp. 307--314, IEEE, 2003.

M. Zink, C. Griwodz, J. Schmitt, and R. Steinmetz. Scalable TCP-friendly Video Distribution for Heterogeneous Clients, In: Proceedings of SPIE/ACM Conference on Multimedia Computing and Networking (MMCN), ed. by Ragunathan Rajkumar, pp. 102--113, SPIE, 2003.

P. Halvorsen, C. Griwodz, K. Lund, V. Goebel, and T. Plagemann. Storage System Support for Multimedia Applications, Department of Informatics, University of Oslo, Norway, 2003.

C. Griwodz. State replication in Multiplayer Games, In: Proceedings of the 1st workshop on Network and system support for games, ed. by Lars C. Wolf, pp. 29--35, New York, NY, USA, ACM Press, 2002.

M. Zink, C. Griwodz, J. Schmitt, and R. Steinmetz. Exploiting the Fair Share to Smoothly Transport Layered Encoded Video into Proxy Caches, In: Proceedings of SPIE/ACM Conference on Multimedia Computing and Networking (MMCN), ed. by Martin G. Kienzle and Prashant J. Shenoy, pp. 61--72, SPIE, 2002.

D. Ecklund, V. Goebel, T. Plagemann, E. Ecklund, C. Griwodz, Jan-O. Aagedahl, K. Lund, and Arne-J. Berre. QoS Management Middleware: A Separable, Reusable Solution, In: Proceedings of the International Workshop on Interactive Distributed Multimedia Systems and Telecommunication Services (IDMS), ed. by Doug Shepherd and Joe Finney and Laurent Mathy and Nicolas J. P. Race, pp. 124--137, Springer-Verlag. Lecture Notes In Computer Science, 2001.

C. Griwodz and M. Zink. Dynamic data path reconfiguration, In: M3W: Proceedings of the International Workshop on Multimedia Middleware, ed. by Nicolas D. Georganas and Radu Popescu-Zeletin, pp. 72--75, Ottawa, Ontario, Canada, ACM Press, 2001.

C. Griwodz, M. Liepert, A. El-Saddik, G. On, and M. Zink. Perceived Consistency, In: Proc. of the ACS/IEEE Int'l. Conf. on Computer Systems and Applications (AICCSA), ed. by ?, pp. 260--266, ACS, IEEE Computer Society Press, 2001.

G. On, M. Zink, M. Liepert, C. Griwodz, J. Schmitt, and R. Steinmetz. Replication for a Distributed Multimedia System, In: International Conferance on Parallel and Distributed Systems (ICPADS), ed. by ?, pp. 37--42, IEEE, 2001.

M. Zink, C. Griwodz, and R. Steinmetz. KOM Player - A Platform for Experimental VoD Research, In: IEEE Symposium on Computers and Communications (ISCC), ed. by ?, pp. 370--375, IEEE Press, 2001.

M. Zink, C. Griwodz, and R. Steinmetz. KOM Player - A Platform for Experimental VoD Research, In: 9th Dortmunder Fernsehseminar, ed. by R. Kays, H. Schröder, vol. 167, pp. 287-293, Frankfurt, ITG. ITG Fachbericht, 2001.

C. Griwodz, M. Liepert, M. Zink, and R. Steinmetz. Tune to Lambda-Patching , ACM Performance Evaluation Review 27(4):20--26, 2000.

R. Ackermann, U. Roedig, M. Zink, C. Griwodz, and R. Steinmetz. Associating network flows with user and application information, In: Proc. of ACM workshops on Multimedia, ed. by Shahram Ghandeharizadeh, Shih-Fu Chang, Stephen Fischer, Joseph Konstan, Klara Nahrstedt, pp. 149 - 152 , ACM, ACM Press, 2000.

C. Griwodz, M. Zink, M. Liepert, G. On, and R. Steinmetz. Multicast for Savings in Cache-based Video Distribution, In: Proceedings of SPIE/ACM Conference on Multimedia Computing and Networking (MMCN), ed. by Klara Nahrstedt and Wu-chi Feng, vol. 3969(26), pp. 26--35, SPIE, SPIE, 2000.

C. Griwodz, M. Zink, M. Liepert, and R. Steinmetz. Position paper: Internet VoD Cache Server Design, In: Proceedings of the ACM International Multimedia Conference (ACM MM), ed. by John Buford, Scott Stevens, pp. 123--126, ACM Press, 1999.

M. Liepert, C. Griwodz, G. On, M. Zink, and R. Steinmetz. Distributed media server for the support of multimedia teaching, In: Multimedia Systems and Applications II, ed. by Andrew G. Tescher, Bhaskaran Vasudev, V. Michael Bove Jr., Barbara Derryberry, vol. 3845(452), pp. 452-463, SPIE, SPIE, 1999.

C. Griwodz, O. Merkel, J. Dittmann, and R. Steinmetz. Protecting VoD the Easier Way, In: Proceedings of the ACM International Multimedia Conference (ACM MM), ed. by Wolfgang Effelsberg, Brian C. Smith, pp. 21-28, ACM, ACM Press, 1998.

L. C. Wolf, C. Griwodz, and R. Steinmetz. Multimedia Communication, Proceedings of the IEEE 85(12):1915--1933, 1997.

C. Griwodz, M. Bär, and L. C. Wolf. Long-term Movie Popularity in Video-on-Demand Systems, In: Proceedings of the ACM International Multimedia Conference (ACM MM), ed. by Ephraim P. Glinert, Mark Scott Johnson, Jim Foley, Jim Hollan, pp. 340--357, ACM, ACM Press, 1997.

H. Cossmann, C. Griwodz, G. Grassel, M. Pühlhöfer, M. Schreiber, R. Steinmetz, H. Wittig, and L. Wolf. Interoperable ITV Systems Based on MHEG, In: Proceedings of SPIE/ACM Conference on Multimedia Computing and Networking (MMCN), ed. by Martin Freeman, Paul Jardetzky, Harrick M. Vin, vol. 2667(1), pp. 60-68, SPIE, SPIE, 1996.

H. Cossmann, C. Griwodz, G. Grassel, M. Pühlhöfer, M. Schreiber, R. Steinmetz, H. Wittig, and L. Wolf. GLASS: A Distributed MHEG-Based Multimedia System, In: COST 237 Workshop, ed. by David Hutchison, Henning Christiansen, Geoff Coulson, André A. S. Danthine, pp. 61 - 78, Springer-Verlag. Lecture Notes In Computer Science, 1995.

H. Wittig and C. Griwodz. Intelligent media agents in interactive television systems, In: Proc. of Int'l. Conf. on Multimedia Computing and Systems (ICMCS), ed. by ?, pp. 182-189, IEEE, IEEE, 1995.

H. Wittig and C. Griwodz. Intelligente Interaktive Fernsehsysteme, In: 3rd Dortmunder Fernsehseminar, ed. by H. Schröder, vol. 136, pp. 71-78, ITG, Frankfurt, ITG. ITG Fachberichte, 1995.