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» Efficient algorithms for evaluating xpath over streams
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MOBIDE
2010
ACM
13 years 9 months ago
Power-aware operator placement and broadcasting of continuous query results
Complex event detection over data streams has become ubiquitous through the widespread use of sensors, wireless connectivity and the wide variety of end-user mobile devices. Typic...
Panayiotis Neophytou, Mohamed A. Sharaf, Panos K. ...
SIGMOD
2008
ACM
125views Database» more  SIGMOD 2008»
14 years 9 months ago
Categorical skylines for streaming data
The problem of skyline computation has attracted considerable research attention. In the categorical domain the problem becomes more complicated, primarily due to the partially-or...
Nikos Sarkas, Gautam Das, Nick Koudas, Anthony K. ...
SODA
2004
ACM
173views Algorithms» more  SODA 2004»
13 years 10 months ago
Tabulation based 4-universal hashing with applications to second moment estimation
We show that 4-universal hashing can be implemented efficiently using tabulated 4-universal hashing for characters, gaining a factor of 5 in speed over the fastest existing method...
Mikkel Thorup, Yin Zhang
PODS
2006
ACM
134views Database» more  PODS 2006»
14 years 8 months ago
Finding global icebergs over distributed data sets
Finding icebergs ? items whose frequency of occurrence is above a certain threshold ? is an important problem with a wide range of applications. Most of the existing work focuses ...
Qi Zhao, Mitsunori Ogihara, Haixun Wang, Jun Xu
WCNC
2008
IEEE
14 years 3 months ago
Adaptive Split Transmission for Video Streams in Wireless Mesh Networks
— Wireless mesh networks hold great promise in the wireless transmission of video flows, particularly if the problem of providing sufficient network capacity can be addressed. ...
Wanqing Tu, Cormac J. Sreenan