NDLI: Distributed regression: an efficient framework for modeling sensor network data

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Distributed regression: an efficient framework for modeling sensor network data

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Distributed regression: an efficient framework for modeling sensor network data

Content Provider	ACM Digital Library
Author	Thibaux, Romain Paskin, Mark Madden, Samuel Bodik, Peter Guestrin, Carlos
Abstract	We present distributed regression, an efficient and general framework for in-network modeling of sensor data. In this framework, the nodes of the sensor network collaborate to optimally fit a global function to each of their local measurements. The algorithm is based upon kernel linear regression, where the model takes the form of a weighted sum of local basis functions; this provides an expressive yet tractable class of models for sensor network data. Rather than transmitting data to one another or outside the network, nodes communicate constraints on the model parameters, drastically reducing the communication required. After the algorithm is run, each node can answer queries for its local region, or the nodes can efficiently transmit the parameters of the model to a user outside the network. We present an evaluation of the algorithm based upon data from a 48-node sensor network deployment at the Intel Research - Berkeley Lab, demonstrating that our distributed algorithm converges to the optimal solution at a fast rate and is very robust to packet losses.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISBN	1581138466
DOI	10.1145/984622.984624
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2004-04-26
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Wireless sensor networks Machine learning Regression Distributed algorithms
Content Type	Text
Resource Type	Article

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