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Displaying 1-13 out of 13 total
Co-operative Infrastructures: An Economic Model for Providing Infrastructures for Social Cloud Computing
Found in: 2013 46th Hawaii International Conference on System Sciences (HICSS)
By Christian Haas,Simon Caton,Kyle Chard,Christof Weinhardt
Issue Date:January 2013
pp. 729-738
Social Cloud Computing is an emerging online collaboration paradigm which is characteristic of many socially oriented electronic platforms. The operation of such a platform requires computational infrastructure to facilitate the platform itself as well as ...
   
A simulator for social exchanges and collaborations — Architecture and case study
Found in: 2012 IEEE 8th International Conference on E-Science (e-Science)
By Christian Haas,Simon Caton,Daniel Trumpp,Christof Weinhardt
Issue Date:October 2012
pp. 1-8
Social collaboration scenarios, such as sharing resources between friends, are becoming increasingly prevalent in recent years. An example of this new paradigm is Social Cloud Computing, which aims at leveraging existing digital relationships within social...
 
Towards the gamification of well-being measures
Found in: 2012 IEEE 8th International Conference on E-Science (e-Science)
By Margeret Hall,Steven O. Kimbrough,Christian Haas,Christof Weinhardt,Simon Caton
Issue Date:October 2012
pp. 1-8
There is an overriding interest in measuring the well-being of communities and institutions: healthy (flourishing) individuals and groups perform “better” than those that are not. Capturing the facets of well-being is, however, not straightforward: it cont...
 
Service Level Management for Service Value Networks
Found in: 2012 IEEE 36th IEEE Annual Computer Software and Applications Conference Workshops (COMPSACW)
By Frank Schulz,Wibke Michalk,Markus Hedwig,Marcus McCallister,Christof Momm,Simon Caton,Christian Haas,Daniel Rolli,Monika Tavas
Issue Date:July 2012
pp. 51-56
The ongoing trend towards a global services economy creates considerable market opportunities for various stakeholders. A service intermediary who offers complex services to customers and consumes services from suppliers and thus creates a service value ne...
 
Towards Self-Awareness in Cloud Markets: A Monitoring Methodology
Found in: Dependable, Autonomic and Secure Computing, IEEE International Symposium on
By Ivan Breskovic,Christian Haas,Simon Caton,Ivona Brandic
Issue Date:December 2011
pp. 81-88
Currently, the Cloud landscape is a fragmented, static and shapeless market that hinders the paradigm's ability to fulfil its promise of ubiquitous computing on tap and as a commodity. In this paper, we present our vision of an autonomic self-aware Cloud m...
 
Engineering Incentives in Social Clouds
Found in: Cluster Computing and the Grid, IEEE International Symposium on
By Christian Haas, Simon Caton, Christof Weinhardt
Issue Date:May 2011
pp. 572-575
Combining the strengths of the Cloud Computing and Social Network paradigms, the vision of Social Clouds aims to provide a resource sharing mechanism where participants dynamically share and trade resources on the premise of the relationships encoded in a ...
 
Improving Resource Matchmaking through Feedback Integration
Found in: 2014 14th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid)
By Christian Haas,Ioan Petri,Omer Rana
Issue Date:May 2014
pp. 906-914
Distributed systems in which users consume and supply different types of services and resources are becoming ever more prevalent. For the matching of consumers and providers, preference-based two-sided matching algorithms can be used to improve the efficie...
 
A Social Compute Cloud: Allocating and Sharing Infrastructure Resources via Social Networks
Found in: IEEE Transactions on Services Computing
By Simon Caton,Christian Haas,Kyle Chard,Kris Bubendorfer,Omer Rana
Issue Date:February 2014
pp. 1
Social network platforms have rapidly changed the way that people communicate and interact. They have enabled the establishment of, and participation in, digital communities as well as the representation, documentation and exploration of social relationshi...
   
Evaluating the energy-efficiency of the Rich Uncle key exchange protocol in WSNs
Found in: 2013 IEEE 38th Conference on Local Computer Networks (LCN 2013)
By Christian Haas,Joachim Wilke,Fabian Knittel
Issue Date:October 2013
pp. 336-339
This paper evaluates the energy consumption of three key exchange protocols Rich Uncle, (EC)DH-(EC)DSA and Kerberos. It aims at determining which protocol can exchange keys between two sensor nodes in the most energy-efficient way. To realistically compare...
   
Evaluating the energy-efficiency of key exchange protocols in wirelesssensor networks
Found in: Proceedings of the 7th ACM workshop on Performance monitoring and measurement of heterogeneous wireless and wired networks (PM2HW2N '12)
By Christian Haas, Joachim Wilke
Issue Date:October 2012
pp. 133-140
The evaluation of the energy-efficiency of applications and protocols is one of the most important issues in Wireless Sensor Networks (WSN). However, this is a time consuming and challenging task. Therefore, a realistic energy-efficiency evaluation is ofte...
     
Energy-efficiency of WSN concast communication: a reality-check
Found in: Proceedings of the 9th ACM Conference on Embedded Networked Sensor Systems (SenSys '11)
By Christian Haas, Joachim Wilke
Issue Date:November 2011
pp. 351-352
Data aggregation is one of the most important communication pattern in wireless sensor networks (WSN), as it reduces communication volume significantly in typical monitoring scenarios. However, data aggregation is also assumed to reduce the energy consumpt...
     
Energy evaluations in wireless sensor networks: a reality check
Found in: Proceedings of the 14th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems (MSWiM '11)
By Christian Haas, Joachim Wilke
Issue Date:October 2011
pp. 27-30
The development of energy-efficient applications and protocols is one of the most important issues in Wireless Sensor Networks (WSN). However, most publications up to now avoid time consuming realistic energy evaluations and oversimplify their evaluation w...
     
A wireless sensor network for border surveillance
Found in: Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems (SenSys '09)
By Andreas Kuntz, Christian Haas, Daniela Kruger, Denise Dudek, Dennis Pfisterer, Martina Zitterbart, Peter Rothenpieler, Stefan Fischer
Issue Date:November 2009
pp. 303-304
We will demonstrate a wireless sensor network system for the surveillance of critical areas and properties -- e.g. borders. The system consists of up to 10 sensor nodes that monitor a small border area. The protocols we show focus on detecting trespassers ...
     
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