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» Prototype based outlier detection
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MOBISYS
2010
ACM
14 years 12 months ago
Energy-efficient rate-adaptive GPS-based positioning for smartphones
Many emerging smartphone applications require position information to provide location-based or context-aware services. In these applications, GPS is often preferred over its alte...
Jeongyeup Paek, Joongheon Kim, Ramesh Govindan
MOBICOM
2010
ACM
14 years 9 months ago
The spaces between us: setting and maintaining boundaries in wireless spectrum access
Guardbands are designed to insulate transmissions on adjacent frequencies from mutual interference. As more devices in a given area are packed into orthogonal wireless channels, c...
Lei Yang, Ben Y. Zhao, Haitao Zheng
SIGMOD
2007
ACM
136views Database» more  SIGMOD 2007»
15 years 9 months ago
Progressive optimization in a shared-nothing parallel database
Commercial enterprise data warehouses are typically implemented on parallel databases due to the inherent scalability and performance limitation of a serial architecture. Queries ...
Wook-Shin Han, Jack Ng, Volker Markl, Holger Kache...
INFOCOM
2009
IEEE
15 years 4 months ago
PHY Aided MAC - A New Paradigm
—Network protocols have traditionally been designed using a layered method in part because it is easier to implement some portions of network protocols in software and other port...
Dola Saha, Aveek Dutta, Dirk Grunwald, Douglas C. ...
MMSEC
2006
ACM
195views Multimedia» more  MMSEC 2006»
15 years 3 months ago
Image annotation watermarking: nested object embedding using hypergraph model
In this paper, we introduce to the special domain of image annotation watermarking, based on embedding of hierarchical data related to objects into user-selected areas on an image...
Claus Vielhauer, Maik Schott