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TPDS
2010
256views more  TPDS 2010»
15 years 5 months ago
Privacy-Conscious Location-Based Queries in Mobile Environments
— In location-based services, users with location-aware mobile devices are able to make queries about their surroundings anywhere and at any time. While this ubiquitous computing...
Jianliang Xu, Xueyan Tang, Haibo Hu, Jing Du
SRDS
2010
IEEE
15 years 5 months ago
Crash-Tolerant Collision-Free Data Aggregation Scheduling for Wireless Sensor Networks
Data aggregation scheduling, or convergecast, is a fundamental pattern of communication in wireless sensor networks (WSNs), where sensor nodes aggregate and relay data to a sink no...
Arshad Jhumka
STOC
2009
ACM
145views Algorithms» more  STOC 2009»
16 years 8 months ago
Finding, minimizing, and counting weighted subgraphs
d Abstract] Virginia Vassilevska School of Mathematics Institute for Advanced Study Princeton, NJ 08540 USA virgi@math.ias.edu Ryan Williams School of Mathematics Institute for Adv...
Virginia Vassilevska, Ryan Williams
SIAMCOMP
2002
138views more  SIAMCOMP 2002»
15 years 7 months ago
Phase Change of Limit Laws in the Quicksort Recurrence under Varying Toll Functions
We characterize all limit laws of the quicksort type random variables defined recursively by Xn d = XIn + X n-1-In + Tn when the "toll function" Tn varies and satisfies ...
Hsien-Kuei Hwang, Ralph Neininger
MOBISYS
2007
ACM
16 years 7 months ago
MobiSteer: using steerable beam directional antenna for vehicular network access
In this work, we investigate the use of directional antennas and beam steering techniques to improve performance of 802.11 links in the context of communication between a moving v...
Vishnu Navda, Anand Prabhu Subramanian, Kannan Dha...
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