Dynamic scheduling of real-time tasks under precedence constraints
Real-Time Systems
Aperiodic servers in a deadline scheduling environment
Real-Time Systems
Applying update streams in a soft real-time database system
SIGMOD '95 Proceedings of the 1995 ACM SIGMOD international conference on Management of data
Quality of service based routing: a performance perspective
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment
Journal of the ACM (JACM)
Adaptive precision setting for cached approximate values
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
Design and evaluation of a wide-area event notification service
ACM Transactions on Computer Systems (TOCS)
Update Propagation Strategies for Improving the Quality of Data on the Web
Proceedings of the 27th International Conference on Very Large Data Bases
RTAS '95 Proceedings of the Real-Time Technology and Applications Symposium
Robust aperiodic scheduling under dynamic priority systems
RTSS '95 Proceedings of the 16th IEEE Real-Time Systems Symposium
ControlWare: A Middleware Architecture for Feedback Control of Software Performance
ICDCS '02 Proceedings of the 22 nd International Conference on Distributed Computing Systems (ICDCS'02)
An network measurement architecture for adaptive applications
An network measurement architecture for adaptive applications
Addressing Timeliness/Accuracy/Cost Tradeoffs in Information Collection for Dynamic Environments
RTSS '03 Proceedings of the 24th IEEE International Real-Time Systems Symposium
A framework for event composition in distributed systems
Proceedings of the ACM/IFIP/USENIX 2003 International Conference on Middleware
Addressing Timeliness/Accuracy/Cost Tradeoffs in Information Collection for Dynamic Environments
RTSS '03 Proceedings of the 24th IEEE International Real-Time Systems Symposium
QUASAR: quality aware sensing architecture
ACM SIGMOD Record
Distributed Context Retrieval and Consistency Control in Pervasive Computing
Journal of Network and Systems Management
Application-aware integration of data collection and power management in wireless sensor networks
Journal of Parallel and Distributed Computing
Dependency discovery in data quality
CAiSE'10 Proceedings of the 22nd international conference on Advanced information systems engineering
Self-adaptive approximate queries for large-scale information aggregation
International Journal of Web and Grid Services
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In this paper, we focus on addressing the tradeoffs betweentimeliness, accuracy and cost for applications requiringreal-time information collection in distributed real-timeenvironments. In this scenario, information consumers requiredata from information sources at varying levels of accuracyand timeliness. To accommodate the diverse characteristicsof information sources and varying requirementsfrom information consumers, we use an information mediatorto coordinate and facilitate communication between informationsources and consumers. We develop algorithmsfor real-time request scheduling and directory service maintenanceand compare our techniques with several other proposedstrategies. Our studies indicate that the judiciouscomposition of our proposed intelligent policies can improvethe overall efficiency of the system. Furthermore, theproposed policies perform very well as the system scales inthe number of information sources and consumer requests.