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COMAD
2008
15 years 1 months ago
Runtime Optimization of Continuous Queries
In data stream processing systems, Quality of Service (or QoS) requirements, as specified by users, are extremely important. Unlike in a database management system (DBMS), a query...
Balakumar Kendai, Sharma Chakravarthy
CDC
2008
IEEE
217views Control Systems» more  CDC 2008»
14 years 12 months ago
An ensemble Kalman filtering approach to highway traffic estimation using GPS enabled mobile devices
Traffic state estimation is a challenging problem for the transportation community due to the limited deployment of sensing infrastructure. However, recent trends in the mobile pho...
Daniel B. Work, Olli-Pekka Tossavainen, Sebastien ...
IPSN
2004
Springer
15 years 5 months ago
Estimation from lossy sensor data: jump linear modeling and Kalman filtering
Due to constraints in cost, power, and communication, losses often arise in large sensor networks. The sensor can be modeled as an output of a linear stochastic system with random...
Alyson K. Fletcher, Sundeep Rangan, Vivek K. Goyal
SIGCOMM
2012
ACM
13 years 2 months ago
Network-aware service placement in a distributed cloud environment
We consider a system of compute and storage resources geographically distributed over a large number of locations connected via a wide-area network. By distributing the resources,...
Moritz Steiner, Bob Gaglianello Gaglianello, Vijay...
SIGMETRICS
2005
ACM
150views Hardware» more  SIGMETRICS 2005»
15 years 5 months ago
An analytical model for multi-tier internet services and its applications
- Since many Web applications employ a multi-tier architecture, in this paper, we focus on the problem of analytically modeling the behavior of such applications. We present a mode...
Bhuvan Urgaonkar, Giovanni Pacifici, Prashant J. S...