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SIGMOD
2001
ACM
213views Database» more  SIGMOD 2001»
14 years 8 months ago
Bit-Sliced Index Arithmetic
The bit-sliced index (BSI) was originally defined in [ONQ97]. The current paper introduces the concept of BSI arithmetic. For any two BSI's X and Y on a table T, we show how ...
Denis Rinfret, Patrick E. O'Neil, Elizabeth J. O'N...
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
EDBT
2008
ACM
169views Database» more  EDBT 2008»
14 years 8 months ago
Efficient online top-K retrieval with arbitrary similarity measures
The top-k retrieval problem requires finding k objects most similar to a given query object. Similarities between objects are most often computed as aggregated similarities of the...
Prasad M. Deshpande, Deepak P, Krishna Kummamuru
MOBISYS
2008
ACM
14 years 8 months ago
Sherlock: automatically locating objects for humans
Over the course of a day a human interacts with tens or hundreds of individual objects. Many of these articles are nomadic, relying on human memory to manually index, inventory, o...
Aditya Nemmaluri, Mark D. Corner, Prashant J. Shen...
MOBIHOC
2005
ACM
14 years 8 months ago
Least privilege and privilege deprivation: towards tolerating mobile sink compromises in wireless sensor networks
Mobile sinks are needed in many sensor network applications for efficient data collection, data querying, localized sensor reprogramming, identifying and revoking compromised sens...
Wensheng Zhang, Hui Song, Sencun Zhu, Guohong Cao