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» Compressing Kinetic Data from Sensor Networks
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SAC
2005
ACM
15 years 3 months ago
Indexing continuously changing data with mean-variance tree
: Traditional spatial indexes like R-tree usually assume the database is not updated frequently. In applications like location-based services and sensor networks, this assumption i...
Yuni Xia, Sunil Prabhakar, Shan Lei, Reynold Cheng...
PVLDB
2010
252views more  PVLDB 2010»
14 years 4 months ago
Efficient and Effective Similarity Search over Probabilistic Data based on Earth Mover's Distance
Probabilistic data is coming as a new deluge along with the technical advances on geographical tracking, multimedia processing, sensor network and RFID. While similarity search is...
Jia Xu, Zhenjie Zhang, Anthony K. H. Tung, Ge Yu
EWSN
2008
Springer
15 years 9 months ago
Characterizing Mote Performance: A Vector-Based Methodology
Sensors networks instrument the physical space using motes that run network embedded programs thus acquiring, processing, storing and transmitting sensor data. The motes commercial...
Martin Leopold, Marcus Chang, Philippe Bonnet
SIGMOD
2003
ACM
145views Database» more  SIGMOD 2003»
15 years 10 months ago
Evaluating Probabilistic Queries over Imprecise Data
Many applications employ sensors for monitoring entities such as temperature and wind speed. A centralized database tracks these entities to enable query processing. Due to contin...
Reynold Cheng, Dmitri V. Kalashnikov, Sunil Prabha...
ICMCS
2005
IEEE
145views Multimedia» more  ICMCS 2005»
15 years 3 months ago
Error Resilient Multiple Description Coding Based on Wavelet Tree Coding and EREC for Wireless Networks
In this paper, we propose an integrated error resilient MDC scheme for wireless networks with both packet loss and random bit errors. Two descriptions are first generated independ...
Daewon Song, Lei Cao, Chang Wen Chen