@article {Simula.mpg.32,
	title = {Web Services Discovery Across Heterogeneous Military Networks},
	journal = {IEEE Communications Magazine},
	volume = {48},
	number = {10},
	year = {2010},
	pages = {84-90},
	abstract = {NATO has identified web services standards as a key enabler for interoperability between the different military systems used by various NATO nations. Compared to many civilian systems, mil- itary networks vary greatly in terms of comput- ing resources, network bandwidth, mobility and stability, and distributed applications use several different networks concurrently or interact across them. In such dynamic and heterogeneous environments, runtime service discovery is a necessity. According to the W3C, {\textquotedblleft}discovery is the act of locating a machine-processable description of a Web service-related resource that may have been previously unknown and that meets certain functional criteria.{\textquotedblright} In this article we present our approach to service discovery, where we combine web services standards and proprietary solutions using our prototype inter- operability gateway. This approach has been experimentally evaluated in a military experi- ment featuring both mobile ad hoc networks and fixed infrastructure networks, and the results show that transparent discovery between propri- etary solutions and web services discovery stan- dards can be achieved.},
	author = {Frank Trethan {Johnsen} and Hafs{\o}e, Trude and Eggen, Anders and Griwodz, Carsten and Halvorsen, P{\r a}l}
}
@inproceedings {Simula.ND.16,
	title = {Workload Characterization for News-on-Demand Streaming Services},
	journal = {International Performance Computing and Communications Conference (IPCCC)},
	year = {2007},
	month = {April},
	pages = {314-323},
	publisher = {IEEE},
	type = {Annual},
	abstract = {This paper focuses on design issues for multimedia distribution architectures and the impact workload characteristics have on architecture design. Our contribution is an analysis of server load and user behavior in a News-on-Demand environment, with focus on access patterns, popularity modeling, and the formation of traffic peaks. Finally, we evaluate an existing synthetic workload generator, MediSyn, and suggest some enhancements which will improve its suitability for News-on-Demand workload modeling.},
	isbn = {1-4244-1138-6},
	author = {Frank Trethan {Johnsen} and Hafs{\o}e, Trude and Griwodz, Carsten and Halvorsen, P{\r a}l}
}
@inproceedings {Johnsen.2006.1,
	title = {Analysis of Server Workload and Client Interactions in a News-on-Demand Streaming System},
	journal = {International Symposium on Multimedia (ISM 2006)},
	year = {2006},
	note = {accepted for poster},
	pages = {724-727},
	publisher = {IEEE},
	type = {Conference},
	abstract = {Internet services are continuing to grow along with the number of clients connecting to the Internet and the transfer rates of their connections. News is one of the main areas of usage of clients today. We investigate several aspects of streaming in News-on-Demand services on the Internet today by analyzing log files of a news service from one of Norway{\textquoteright}s largest online newspapers. These logs span almost two years of streaming, with a total of 4.6 million client requests after cleaning the logs. These requests are for over 3000 unique audio and video files. In this paper we investigate both short-term and long-term effects of client usage of the streaming material. We examine the users{\textquoteright} interaction with the content, in particular user behavior and object popularity in terms of news streaming media. By comparing our results with earlier work, we found that variations in server load depends strongly on local culture. Furthermore, we found that there are slight variations between client usage of the audio and video material. We also investigated traffic peaks, and how rapidly they form.},
	isbn = {0-7695-2746-9},
	author = {Frank Trethan {Johnsen} and Hafs{\o}e, Trude and Griwodz, Carsten},
	editor = {Sheu, Philipp and M{\"u}hlh{\"a}user, Max and Mori, Kinji}
}
