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Displaying 1-16 out of 16 total
Winds of Change: From Vendor Lock-In to the Meta Cloud
Found in: IEEE Internet Computing
By Benjamin Satzger,Waldemar Hummer,Christian Inzinger,Philipp Leitner,Schahram Dustdar
Issue Date:January 2013
pp. 69-73
The emergence of yet more cloud offerings from a multitude of service providers calls for a meta cloud to smoothen the edges of the jagged cloud landscape. This meta cloud could solve the vendor lock-in problems that current public and hybrid cloud users f...
 
Application-level performance monitoring of cloud services based on the complex event processing paradigm
Found in: 2012 5th IEEE International Conference on Service-Oriented Computing and Applications (SOCA)
By Philipp Leitner,Christian Inzinger,Waldemar Hummer,Benjamin Satzger,Schahram Dustdar
Issue Date:December 2012
pp. 1-8
Monitoring of applications deployed to Infrastructure-as-a-Service clouds is still an open problem. In this paper, we discuss an approach based on the complex event processing paradigm, which allows application developers to specify and monitor high-level ...
 
Cost-Efficient and Application SLA-Aware Client Side Request Scheduling in an Infrastructure-as-a-Service Cloud
Found in: 2012 IEEE 5th International Conference on Cloud Computing (CLOUD)
By Philipp Leitner,Waldemar Hummer,Benjamin Satzger,Christian Inzinger,Schahram Dustdar
Issue Date:June 2012
pp. 213-220
Providers of applications deployed in an Infrastructure-as-a-Service cloud permanently face the decision of whether it is more cost-efficient to scale up(i.e., rent more resources from the cloud) or to delay incoming requests, even though doing so may lead...
 
Principles of Elastic Processes
Found in: IEEE Internet Computing
By Schahram Dustdar,Yike Guo,Benjamin Satzger,Hong-Linh Truong
Issue Date:September 2011
pp. 66-71
Cloud computing's success has made on-demand computing with a pay-as-you-go pricing model popular. However, cloud computing's focus on resources and costs limits progress in realizing more flexible, adaptive processes. The authors introduce elastic process...
 
Esc: Towards an Elastic Stream Computing Platform for the Cloud
Found in: Cloud Computing, IEEE International Conference on
By Benjamin Satzger,Waldemar Hummer,Philipp Leitner,Schahram Dustdar
Issue Date:July 2011
pp. 348-355
Today, most tools for processing big data are batch-oriented. However, many scenarios require continuous, online processing of data streams and events. We present ESC, a new stream computing engine. It is designed for computations with real-time demands, s...
 
Trust Measurement Methods in Organic Computing Systems by Direct Observation
Found in: Embedded and Ubiquitous Computing, IEEE/IFIP International Conference on
By Rolf Kiefhaber, Benjamin Satzger, Julia Schmitt, Michael Roth, Theo Ungerer
Issue Date:December 2010
pp. 105-111
Trust is an important factor for autonomous distributed systems. Organic Computing features self-organizing techniques to manage complex distributed systems. This paper introduces two methods to measure and calculate trust values with respect to the reliab...
 
Dynamic Workload Prediction for Soft Real-Time Applications
Found in: Computer and Information Technology, International Conference on
By Florian Kluge, Sascha Uhrig, Jörg Mische, Benjamin Satzger, Theo Ungerer
Issue Date:July 2010
pp. 1841-1848
Energy consumption is often a hard constraint of embedded real-time systems. Modern processors provide techniques for dynamic voltage and frequency scaling to reduce energy consumption. However, while the processor possibly operates at a lower clock freque...
 
UbiMASS
Found in: Sensor Networks, Ubiquitous, and Trustworthy Computing, International Conference on
By Faruk Bagci, Julian Wolf, Benjamin Satzger, Theo Ungerer
Issue Date:June 2010
pp. 245-252
Ubiquitous systems build on the vision that great amounts of fixed and mobile microchips and sensors will be integrated in everyday objects. Developing services on basis of sensor nodes and limited devices is an arduous task. A program running on such a de...
 
Optimisation of Energy Consumption of Soft Real-Time Applications by Workload Prediction
Found in: Object/Component/Service-Oriented Real-Time Distributed Computing Workshops , IEEE International Symposium on
By Florian Kluge, Sascha Uhrig, Jörg Mische, Benjamin Satzger, Theo Ungerer
Issue Date:May 2010
pp. 63-72
Embedded real-time systems often operate under energy constraints due to a limited battery lifetime. Modern processors provide techniques for dynamic voltage and frequency scaling to reduce energy consumption. However, while the processor possibly operates...
 
A Lazy Monitoring Approach for Heartbeat-Style Failure Detectors
Found in: Availability, Reliability and Security, International Conference on
By Benjamin Satzger, Andreas Pietzowski, Wolfgang Trumler, Theo Ungerer
Issue Date:March 2008
pp. 404-409
Failure detectors are a fundamental part of safe fault-tolerant distributed systems. Many failure detectors use heartbeats to draw conclusions about the state of nodes within a distributed environment. The contribution of this paper is an approach whose be...
 
Adaptive Self-optimization in Distributed Dynamic Environments
Found in: Self-Adaptive and Self-Organizing Systems, IEEE International Conference on
By Wolfgang Trumler, Andreas Pietzowski, Benjamin Satzger, Theo Ungerer
Issue Date:July 2007
pp. 320-323
<p>Grid and ubiquitous computing systems generally consist of a large number of networked nodes with applications implemented as distributed services or processes, respectively. A crucial point is the distribution of the services to balance the load ...
 
Towards Identifying Root Causes of Faults in Service-Based Applications
Found in: 2012 IEEE 31st International Symposium on Reliable Distributed Systems (SRDS)
By Christian Inzinger,Waldemar Hummer,Benjamin Satzger,Philipp Leitner,Schahram Dustdar
Issue Date:October 2012
pp. 404-405
In this paper we study fault localization techniques for identification of incompatible configurations and implementations in service-based applications. We propose an approach using pooled decision trees for localization of faulty service parameter and bi...
   
Self-Stabilization in Hierarchically Structured Energy Markets
Found in: Information Technology: New Generations, Third International Conference on
By Jorg Lassig, Benjamin Satzger, Oliver Kramer
Issue Date:April 2011
pp. 803-809
The paper investigates the self-stabilization of hierarchically structured markets. We propose a new approach that is motivated by the physical structure of the energy grid and generalizes classical market structures in a natural way. Hierarchical markets ...
 
Identifying incompatible service implementations using pooled decision trees
Found in: Proceedings of the 28th Annual ACM Symposium on Applied Computing (SAC '13)
By Benjamin Satzger, Christian Inzinger, Philipp Leitner, Schahram Dustdar, Waldemar Hummer
Issue Date:March 2013
pp. 485-492
We study fault localization techniques for identification of incompatible configurations and implementations in service-based applications (SBAs). Practice has shown that standardized interfaces alone do not guarantee compatibility of services originating ...
     
Deriving a unified fault taxonomy for event-based systems
Found in: Proceedings of the 6th ACM International Conference on Distributed Event-Based Systems (DEBS '12)
By Benjamin Satzger, Christian Inzinger, Philipp Leitner, Schahram Dustdar, Waldemar Hummer
Issue Date:July 2012
pp. 167-178
Dependability and fault-tolerance, which are key requirements for business- or safety-critical applications, require explicit knowledge of potential faults that may occur within a system. In contrast to other major research directions, the emerging field o...
     
A new adaptive accrual failure detector for dependable distributed systems
Found in: Proceedings of the 2007 ACM symposium on Applied computing (SAC '07)
By Andreas Pietzowski, Benjamin Satzger, Theo Ungerer, Wolfgang Trumler
Issue Date:March 2007
pp. 551-555
The detection of failures in distributed environments is a crucial part for developing dependable, robust, and self-healing systems. The contribution of this paper is a new failure detection algorithm that can be described as an adaptive accrual algorithm ...
     
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