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» Algorithms for Location Estimation Based on RSSI Sampling
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TRIDENTCOM
2006
IEEE
14 years 3 months ago
QUETZAL: qualified ultra-wideband testbed for reduced data-rates and location
— This work presents an UWB testbed for reduced data rates with capabilities of measuring range and location. The transmitter uses Time Hopping spread spectrum codes to reduce th...
Antonio Mollfulleda, M. Nájar, P. Miskovsky...
ICIP
2001
IEEE
14 years 11 months ago
Moving target tracking algorithm based on the confidence measure of motion vectors
Change detection using difference picture has been used to detect the location of moving targets and to track them. This method needs the assumption of static camera, and the glob...
Jin-Sung Lee, Kwang-Yeon Rhee, Seong-Dae Kim
WSC
2007
13 years 11 months ago
Importance sampling of compounding processes
Compounding processes, also known as perpetuities, play an important role in many applications; in particular, in time series analysis and mathematical finance. Apart from some s...
Jose Blanchet, Bert Zwart
PERVASIVE
2006
Springer
13 years 9 months ago
Collaborative Localization: Enhancing WiFi-Based Position Estimation with Neighborhood Links in Clusters
Abstract. Location-aware services can benefit from accurate and reliable indoor location tracking. The widespread adoption of 802.11x wireless LAN as the network infrastructure cre...
Li-Wei Chan, Ji-Rung Chiang, Yi-Chao Chen, Chia-na...
SIGMOD
1998
ACM
121views Database» more  SIGMOD 1998»
14 years 1 months ago
New Sampling-Based Summary Statistics for Improving Approximate Query Answers
In large data recording and warehousing environments, it is often advantageous to provide fast, approximate answers to queries, whenever possible. Before DBMSs providing highly-ac...
Phillip B. Gibbons, Yossi Matias