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TSP
2010
14 years 4 months ago
Optimal/near-optimal dimensionality reduction for distributed estimation in homogeneous and certain inhomogeneous scenarios
We consider distributed estimation of a deterministic vector parameter from noisy sensor observations in a wireless sensor network (WSN). The observation noise is assumed uncorrela...
Jun Fang, Hongbin Li
GISCIENCE
2010
Springer
230views GIS» more  GISCIENCE 2010»
14 years 10 months ago
Detecting Change in Snapshot Sequences
Wireless sensor networks are deployed to monitor dynamic geographic phenomena, or objects, over space and time. This paper presents a new spatiotemporal data model for dynamic area...
Mingzheng Shi, Stephan Winter
PERCOM
2005
ACM
15 years 9 months ago
Supporting Topographic Queries in a Class of Networked Sensor Systems
Topographic querying is the process of extracting data from a sensor network for understanding the graphic delineation of features of interest in a terrain. Query processing techn...
Mitali Singh, Viktor K. Prasanna
DCOSS
2008
Springer
14 years 11 months ago
Multi-root, Multi-Query Processing in Sensor Networks
Sensor networks can be viewed as large distributed databases, and SQL-like high-level declarative languages can be used for data and information retrieval. Energy constraints make ...
Zhiguo Zhang, Ajay D. Kshemkalyani, Sol M. Shatz
HPCC
2007
Springer
15 years 3 months ago
A Data Imputation Model in Sensor Databases
Data missing is a common problem in database query processing, which can cause bias or lead to inefficient analyses, and this problem happens more often in sensor databases. The re...
Nan Jiang