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VLDB
2004
ACM
128views Database» more  VLDB 2004»
15 years 10 months ago
Operator scheduling in data stream systems
In many applications involving continuous data streams, data arrival is bursty and data rate fluctuates over time. Systems that seek to give rapid or realtime query responses in su...
Brian Babcock, Shivnath Babu, Mayur Datar, Rajeev ...
PODS
2004
ACM
120views Database» more  PODS 2004»
15 years 10 months ago
Locally Consistent Transformations and Query Answering in Data Exchange
Data exchange is the problem of taking data structured under a source schema and creating an instance of a target schema. Given a source instance, there may be many solutions ? ta...
Marcelo Arenas, Pablo Barceló, Ronald Fagin...
WISEC
2009
ACM
15 years 4 months ago
Towards a theory for securing time synchronization in wireless sensor networks
Time synchronization in highly distributed wireless systems like sensor and ad hoc networks is extremely important in order to maintain a consistent notion of time throughout the ...
Murtuza Jadliwala, Qi Duan, Shambhu J. Upadhyaya, ...
MHCI
2009
Springer
15 years 4 months ago
User evaluation of lightweight user authentication with a single tri-axis accelerometer
We report a series of user studies that evaluate the feasibility and usability of light-weight user authentication with a single tri-axis accelerometer. We base our investigation ...
Jiayang Liu, Lin Zhong, Jehan Wickramasuriya, Venu...
SUTC
2006
IEEE
15 years 3 months ago
Detection and Repair of Software Errors in Hierarchical Sensor Networks
Abstract— Sensor networks are being increasingly deployed for collecting critical data in various applications. Once deployed, a sensor network may experience faults at the indiv...
Douglas Herbert, Yung-Hsiang Lu, Saurabh Bagchi, Z...