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» New local descriptors based on dissociated dipoles
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MOBICOM
2010
ACM
14 years 10 months ago
Exploiting temporal stability and low-rank structure for localization in mobile networks
Localization is a fundamental operation for many wireless networks. While GPS is widely used for location determination, it is unavailable in many environments either due to its h...
Swati Rallapalli, Lili Qiu, Yin Zhang, Yi-Chao Che...
STOC
2003
ACM
171views Algorithms» more  STOC 2003»
15 years 10 months ago
Primal-dual meets local search: approximating MST's with nonuniform degree bounds
We present a new bicriteria approximation algorithm for the degree-bounded minimum-cost spanning tree problem: Given an undirected graph with nonnegative edge weights and degree b...
Jochen Könemann, R. Ravi
CVIU
2004
155views more  CVIU 2004»
14 years 9 months ago
Object of interest-based visual navigation, retrieval, and semantic content identification system
This study presents a content-based image retrieval system IMALBUM based on local region of interest called object of interest (OOI). Each segmented or user-selected OOI is indexe...
Khalid Idrissi, Guillaume Lavoué, Julien Ri...
MOBICOM
2009
ACM
15 years 4 months ago
SurroundSense: mobile phone localization via ambience fingerprinting
A growing number of mobile computing applications are centered around the user’s location. The notion of location is broad, ranging from physical coordinates (latitude/longitude...
Martin Azizyan, Ionut Constandache, Romit Roy Chou...
MOBISYS
2011
ACM
14 years 26 days ago
Indoor localization without infrastructure using the acoustic background spectrum
We introduce a new technique for determining a mobile phone’s indoor location even when Wi-Fi infrastructure is unavailable or sparse. Our technique is based on a new ambient so...
Stephen P. Tarzia, Peter A. Dinda, Robert P. Dick,...