Publications

Management of Body-Sensor Data in Sports Analytic with Operative Consent
Håvard D. Johansen, Wei Zhang, Joseph Hurley, and Dag Johansen.
Proceedings of the 2014 IEEE Ninth International Conference on Intelligent Sensors, Sensor Networks and Information Processing (ISSNIP), 2014.
Self-Managing Data in the Clouds
Joseph Hurley and Dag Johansen.
Proceedings of IEEE International Conference on Cloud Engineering, 2014.
Real-Time HDR Panorama Video
Lorenz Kellerer, Vamsidhar Reddy Gaddam, Ragnar Langseth, Haakon Stensland, Carsten Griwodz, Dag Johansen, and Pål Halvorsen.
Proceedings of the ACM International Conference on Multimedia
Soccer Video and Player Position Dataset
Svein Arne Pettersen, Dag Johansen, Håvard Johansen, Vegard Berg-Johansen, Vamsidhar Reddy Gaddam, Asgeir Mortensen, Ragnar Langseth, Carsten Griwodz, Håkon Kvale Stensland, and Pål Halvorsen.
Proceedings of the 5th ACM Multimedia Systems Conference, 2014.
Be Your Own Cameraman: Real-Time Support for Zooming and Panning into Stored and Live Panoramic Video
Vamsidhar Reddy Gaddam, Ragnar Langseth, Håkon Kvale Stensland, Pierre Gurdjos, Vincent Charvillat, Carsten Griwodz, Dag Johansen, and Pål Halvorsen.
Proceedings of the 5th ACM Multimedia Systems Conference, 2014.
Efficient Implementation and Processing of a Real-Time Panorama Video Pipeline
Tennoe, M; Helgedagsrud, E; Naess, M; Alstad, H.K.; Stensland, H.K.; Gaddam, V.R.; Johansen, D.; Griwodz, C.; Halvorsen, P.
International Journal of Semantic Computing (IJSC) 2014;Volum 08.(02) s. 209-227.
Jovaku: Globally Distributed Caching for Cloud Database Services Using DNS.
Pettersen, Robert Molund; Valvåg, Steffen; Kvalnes, Åge; Johansen, Dag.
Proceeding of the Second IEEE International Conference on Mobile Cloud Computing, Services, and Engineering MobileCloud 2014.
Bagadus: An Integrated Real-Time System for Soccer Analytics
Håkon Kvale Stensland, Vamsidhar Reddy Gaddam, Marius Tennøe, Espen Helgedagsrud, Mikkel Næss, Henrik Kjus Alstad, Asgeir Mortensen, Ragnar Langseth, Sigurd Ljødal, Øystein Landsverk, Carsten Griwodz, Pål Halvorsen, Magnus Stenhaug, Dag Johansen.
ACM Transactions on Multimedia Computing, Communications and Applications (TOMCCAP) 10(1s):14:1-14:21, 2014.
Muithu: A Touch-Based Annotation Interface for Activity Logging in the Norwegian Premier League
Stenhaug, Magnus; Yang, Yang; Gurrin, Cathal Gerard; Johansen, Dag.
Proceedings of the MultiMedia Modeling – 20th Anniversary International Conference, MMM 2014.
Efficient Implementation and Processing of a Real-time Panorama Video Pipeline.
Marius Tennøe, Espen Helgedagsrud, Mikkel Næss, Henrik Kjus Alstad, Håkon Kvale Stensland, Vamsidhar Reddy Gaddam, Dag Johansen, Carsten Griwodz, and Pål Halvorsen.
Proceedings of the International Symposium on Multimedia (ISM), Anaheim, CA, USA, December 2013.
Combining Video and Player Telemetry for Evidence-Based Decisions in Soccer
Håvard D. Johansen, Svein Arne Pettersen, Pål Halvorsen, and Dag Johansen
icSport 2013: Proceedings of the International Congress on Sports Science Research and Technology Support. Vilamoura, Portugal, September 2013, INSTICC. Revised version.
Analysis of a Real-World HTTP Segment Streaming Case
Tomas Kupka, Carsten Griwodz, Pål Halvorsen, Dag Johansen, Torgeir Hovden.
Proceedings of the European Interactive TV Conference (EuroITV 2013), Como, Italy, June 2013
Cogset: a high performance MapReduce engine.
Steffen Viken Valvåg, Dag Johansen, Åge Kvalnes.
Concurrency and Computation: Practice and Experience 25(1): 2-23 (2013)
Position paper: elastic processing and storage at the edge of the cloud.
Steffen Viken Valvåg, Dag Johansen, Åge Kvalnes. HotTopiCS 2013.
Streaming as a hypervisor service.
Audun Nordal, Åge Kvalnes, Robert Pettersen, and Dag Johansen.
Proceedings of the 7th international workshop on Virtualization Technologies in Distributed Computing (VTDC’13)
New York, USA, June 2013. ACM. To appear.

Secure Abstraction with Code Capabilities
Robbert van Renesse, Håvard D. Johansenn, Nihar Naigaonkar, and Dag Johansen.
Proceedings of the 21st Euromicro International Conference on Parallel, Distributed, and Network-Based Processing.
Belfast, Northern Ireland, February/March 2013.
Bagadus: An Integrated System for Arena Sports Analytics – A Soccer Case Study
Pål Halvorsen, Simen Sægrov, Asgeir Mortensen, David K. C. Kristensen, Alexander Eichhorn, Magnus Stenhaug, Stian Dahl, Håkon Kvale Stensland, Vamsidhar Reddy Gaddam, Carsten Griwodz, Dag Johansen.
In Proceedings of the International Conference on Multimedia Systems (MMSys), Oslo, Norway, February/March 2013.
BAGADUS: An Integrated System for Soccer Analysis (Demo)
Simen Sægrov, Alexander Eichhorn, Jørgen Emerslund, Håkon Kvale Stensland,
Carsten Griwodz, Dag Johansen, Pål Halvorsen. Proceedings of the 6th
ACM/IEEE International Conference on Distributed Smart Cameras (ICDSC), Hong
Kong, ACM Publisher, October/November 2012
Secure Abstraction with Code Capabilities
Robbert van Renesse, Håvard D. Johansenn, Nihar Naigaonkar, and Dag Johansen.
Technical report, arXiv:1210.5443, ArXiv. October 2012.
Muithu: Smaller Footprint, Potentially Larger Imprint
Dag Johansen, Magnus Stenhaug, Roger Bruun Asp Hansen, Agnar Christensen, Per-Mathias Høgmo.
Proceedings of Seventh International Conference on Digital Information Management (ICDIM 2012),
August 22-24, 2012, Macau, pp. 205-214. IEEE Computer Society
Muithu: Smaller Footprint, Potentially Larger Imprint
Dag Johansen, Magnus Stenhaug, Roger Bruun Asp Hansen, Agnar Christensen, Per-Mathias Høgmo.
Technical Report 2012-72, University of Tromsø, Norway
Paravirtualizing TCP
A. Nordal, Å. Kvalnes and D. Johansen.
In Proceedingsof the 6th international workshop on Virtualization technologies in
distributed computing (VTDC ’12), June 2012. ACM.
Cogset: A High Performance MapReduce Engine
Steffen Viken Valvåg, Dag Johansen, and Åge Kvalnes.
In Concurrency and Computation: Practice and Experience, special issue on MapReduce. John Wiley and Sons, Ltd., July 2012. DOI: 10.1002/cpe.2827
Cogset: A High-Performance MapReduce Engine
Steffen Valvåg
PhD Dissertation, University of Tromsø, Januar 2012.
Design Principles for Isolation Kernels
Åge Kvalnes, Dag Johansen, Steffen Valvåg, Robbert van Renesse, and Fred B. Schneider
Technical Report 2011-70, University of Tromsø, November 2011.
Search-based composition, streaming and playback of video archive content
Dag Johansen, Pål Halvorsen, Håvard Johansen, Håkon Riiser, Cathal Gurrin, Bjørn Olstad, Carsten Griwodz, Åge Kvalnes, Joseph Hurley and Tomas Kupka
Multimedia Tools and Applications, 2011.
Balava: Federating Private and Public Clouds
Nordal, A. and Kvalnes, Å. and Hurley, J. and Johansen, D.
In Proceedings on the 2011 IEEE World Congress on Services (SERVICES), pages 569-577, July 2011.
Overlay Cloud Networking Through Meta-Code
Dag Johansen and Joseph Hurley
In Proceedings of the 35th IEEE Annual Computer Software and Applications Conference Workshops (COMPSACW), pages 273-278, July, 2011
Cogset vs. Hadoop: Measurements and Analysis
Steffen Viken Valvåg, Dag Johansen and Åge Kvalnes
In Proceedings of The 2nd IEEE International Conference on Cloud Computing Technology and Science (CloudCom 2010)
Simple, yet Paradoxically Complex: Under the Search Surface
Dag Johansen and Bjørn Olstad
JPerAda Magazine, June 2010.
VESP: A Video-Enabled Enterprise Search Platform
Pål Halvorsen, Dag Johansen, Bjørn Olstad, Tomas Kupka and
Sverre Tennø
Proc. of the International Conference on Data and Knowledge
Engineering (ICDKE), Melbourne, Australia, September 2010.
vESP: Enriching Enterprise Document Search Results with Aligned Video Summarization
Pål Halvorsen, Dag Johansen, Bjørn Olstad, Tomas Kupka and Sverre Tennø.
In Proc. ACM Multimedia 2010, Demo program, October 2010, Florence, Italy.
The Nornir run-time system for parallel programs using Kahn
process networks on multi-core machines – A flexible alternative
to MapReduce

Zeljko Vrba, Pål Halvorsen, Carsten Griwodz, Paul Beskow, Håvard Espeland and Dag Johansen
Journal of Supercomputing, Springer, 2010.
Pål Halvorsen, Dag Johansen, Bjørn Olstad, Tomas Kupka and
Sverre Tennø

vESP: Enriching Enterprise Document Search Results with Aligned
Video Summarization
ACM Multimedia 2010 Demo program, October 2010, Florence, Italy.
Support for enterprise consolidation of I/O bound services
Åge Kvalnes, Dag Johansen, Pål Halvorsen and Carsten Griwodz
Journal of Software: Practice and Experience, Wiley, vol. 40,
2010.
Composing Personalized Video Plauouts Using Search
Dag Johansen, Håvard Johansen, Pål Halvorsen, Bjørn Olstad,
Cathal Gurrin, and Carsten Griwodz
In proc. of the The 2010 IEEE International Conference on
Multimedia & Expo, July, 2010, Singapore.
Low Overhead Container Format for Adaptive Streaming
Haakon Riiser, Pål Halvorsen, Carsten Griwodz, and Dag Johansen
In proc. of the 2010 ACM Conference on Multimedia Systems
(MMSys), pages 193-198, February 2010, Scottsdale, AZ, USA.

Searching and Recommending Sports Content on Mobile Devices
David Scott, Cathal Gurrin, Dag Johansen, and Håvard Johansen
In proc. of the 16th International Conference on MultiMedia
Modelling, LNCS volume 5916/2010, pages 779-781, Springer, January 8, 2010, Chongqing, China.


Personalisation and Recommendation from Video Archives
Cathal Gurrin, Lars Brenna, Dag Johansen, and David Scott
Human-Computer Interaction, ISBN 978-953-7619-26-8, In-TECH, 2009

Addressing the Challenge of Managing Large-scale Digital
Multimedia Libraries

Cathal Gurrin, Tjalve Aarflot, Sorin Sav, and Dag Johansen
Journal of Digital Information Management, Vol 7, Issue 5, pages
1-15, October 2009.
GARDI: A Self-Regulating Framework for Digital Libraries
Cathal Gurrin, Tjalve Aarflot, and Dag Johansen.
In Proc. of the IEEE 9th International Conference on Computer
and Information Technology, pages 305-310, Xiamen, China, IEEE
Computer Society, October 2009.
DAVVI: A prototype for the next generation multimedia
entertainment platform (demo)

Dag Johansen, Håvard Johansen, Tjelve Aarflot, Joseph Hurley,
Åge Kvalnes, Cathal Gurrin, Sorin Sav, Bjørn Olstad, Erik
Aaberg, Tore Endestad, Haakon Riiser, Carsten Griwodz, and Pål
Halvorsen.
Proceedings of the ACM International Multimedia Conference (ACM
MM Technical demonstration), pages 989-990, Beijing, China, ACM
Press, October 2009.
Cogset: A unified engine for reliable storage and parallel
processing

Steffen Viken Valvåg and Dag Johansen.
In Proc. of the 6th IFIP International Conference on Network and
Parallel Computing, pages 174-181, Gold Cost, Australia, IEEE
Computer Society, October 2009.
The Nornir run-time system for parallel programs using Kahn
process networks

Zeljko Vrba, Pål Halvorsen, Carsten Griwodz, Paul Beskow and Dag
Johansen.
In Proc. of the 6th IFIP International Conference on Network and
Parallel Computing, pages 1-8, Gold Cost, Australia, IEEE
Computer Society, October 2009.
Authentication and Encryption in the Snow Disease
Surveillance Network

Johan Gustav Bellika, Lars Ilebrekke, Per Atle Bakkevoll, Håvard
Johansen, Jeremiah Scholl, Monika Alise Johansen
Medical Informatics in a United and Healthy Europe, Vol 150 of
Studies in Health Technology and Informatics, pages 725-729, IOS
Press, 2009.
Update Maps – A new Abstraction for High-Throughput Batch
Processing

Steffen Viken Valvåg and Dag Johansen.
In Proc. of the 4th IEEE International Conference on Networking,
Architecture, and Storage (NAS 2009), pages 431-438, China, IEEE
Computer Society, July 2009.
Distributed Event Stream Processing with Non-deterministic
Finite Automata.

Lars Brenna, Johannes Gehrke, Dag Johansen, and Mingsheng Hong.In Proc. of the 3rd ACM International Conference on Distributed
Event-Based Systems (DEBS 2009), Nashville, TN, USA, ACM Press,
July 2009.
A Framework for Transient Objects in Digital Libraries.
Cathal Gurrin, Tjalve Aarflot, and Dag Johansen.
In Proceedings of the 3rd IEEE International Conferance on
Digital Information Management, London, UK, 13-16 November 2008.
Resilient Software Mirroring With Untrusted Third Parties.

Håvard Johansen and Dag Johansen.
In Proceedings of the 1st ACM Workshop on Hot Topics in Software
Upgrades (HotSWUp), Nashville, TN, USA, October 2008.
Oivos: Simple and Efficient Distributed Data Processing.
Steffen Viken Valvåg and Dag Johansen.
In Proceedings of the 10th IEEE International Conference on High
Performance Computing and Communications (HPCC08), Dalian,
China, October, 2008.
The Dynamic Enterprise Bus.
Dag Johansen and Håvard Johansen.
In Proceedings of the 4th International Conference on Autonomic
and Autonomous Systems>, IEEE, Gosier, Guadeloupe, March 2008.
Real-World Mood-Based Music Recommendation.
Magnus Mortensen, Cathal Gurrin and Dag Johansen.
In Proceedings of the 4th Asia Information Retrieval Symposium
(AIRS), Harbin, China, January 2008.
Intrusion-Tolerant Membership Management for Peer-to-Peer
Overlay Networks.

Håvard Johansen.
PhD Dissertation, University of Tromsø, November 2007.
FirePatch: Secure and time-critical dissemination of software
patches.

Håvard Johansen, Dag Johansen, and Robbert van Renesse.
In Proceedings of the 22nd International Information Security
Conference, pages 373-384. IFIP, Springer-Verlag, Johannesburg,
South-Africa, May 2007.
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