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SIGMOD
2007
ACM
169views Database» more  SIGMOD 2007»
15 years 10 months ago
Scalable approximate query processing with the DBO engine
This paper describes query processing in the DBO database system. Like other database systems designed for ad-hoc, analytic processing, DBO is able to compute the exact answer to ...
Christopher M. Jermaine, Subramanian Arumugam, Abh...
SIGMOD
2007
ACM
170views Database» more  SIGMOD 2007»
15 years 10 months ago
Cardinality estimation using sample views with quality assurance
Accurate cardinality estimation is critically important to high-quality query optimization. It is well known that conventional cardinality estimation based on histograms or simila...
Per-Åke Larson, Wolfgang Lehner, Jingren Zho...
SIGMOD
2004
ACM
121views Database» more  SIGMOD 2004»
15 years 10 months ago
A secure hierarchical model for sensor network
In a distributed sensor network, large number of sensors deployed which communicate among themselves to selforganize a wireless ad hoc network. We propose an energyefficient level...
Malik Ayed Tubaishat, Jian Yin, Biswajit Panja, Sa...
WISTP
2010
Springer
15 years 4 months ago
Fraud Detection for Voice over IP Services on Next-Generation Networks
The deployment of Next-Generation Networks (NGN) is a challenge that requires integrating heterogeneous services into a global system of All-IP telecommunications. These networks c...
Igor Ruiz-Agundez, Yoseba K. Penya, Pablo Garcia B...
HICSS
2009
IEEE
105views Biometrics» more  HICSS 2009»
15 years 4 months ago
Digital Pen: Four Rounds of Ethnographic and Field Research
We report on a year-long qualitative and ethnographic project to examine the value of digital pen technology for note taking. A digital pen captures a facsimile of information wri...
Christopher N. Chapman, Michal Lahav, Susan Burges...