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» An information theoretic approach to processing management
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SIGMOD
2009
ACM
120views Database» more  SIGMOD 2009»
15 years 10 months ago
Kernel-based skyline cardinality estimation
The skyline of a d-dimensional dataset consists of all points not dominated by others. The incorporation of the skyline operator into practical database systems necessitates an ef...
Zhenjie Zhang, Yin Yang, Ruichu Cai, Dimitris Papa...
BTW
2009
Springer
146views Database» more  BTW 2009»
15 years 4 months ago
Towards Flash Disk Use in Databases - Keeping Performance While Saving Energy?
Abstract: Green computing or energy saving when processing information is primarily considered a task of processor development. We, however, advocate that a holistic approach is ne...
Theo Härder, Karsten Schmidt 0002, Yi Ou, Seb...
PIMRC
2010
IEEE
14 years 7 months ago
Downlink capacity of two-tier cognitive femto networks
Abstract--In two-tier networks consisting of a macrocell overlaid with femtocells in co-channel deployment and closed-access policy, spatial reuse is achieved at the price of sever...
Shin-Ming Cheng, Weng-Chon Ao, Kwang-Cheng Chen
SOSP
2007
ACM
15 years 6 months ago
Zyzzyva: speculative byzantine fault tolerance
We present Zyzzyva, a protocol that uses speculation to reduce the cost and simplify the design of Byzantine fault tolerant state machine replication. In Zyzzyva, replicas respond...
Ramakrishna Kotla, Lorenzo Alvisi, Michael Dahlin,...
DPHOTO
2009
129views Hardware» more  DPHOTO 2009»
14 years 7 months ago
Extended depth-of-field using sharpness transport across color channels
In this paper we present an approach to extend the Depth-of-Field (DoF) for cell phone miniature camera by concurrently optimizing optical system and post-capture digital processi...
Frederic Guichard, Hoang-Phi Nguyen, Régis ...