eCite Digital Repository

Dealing with missing sensor values in predicting shellfish farm closure


Rahman, A and D'Este, CE and Timms, GP, Dealing with missing sensor values in predicting shellfish farm closure, Proceedings of the 2013 IEEE Eighth International Conference on Intelligent Sensors, Sensor Networks and Information Processing, 2-5 April 2013, Melbourne, Australia, pp. 351-356. ISBN 978-1-4673-5500-1 (2013) [Refereed Conference Paper]

Copyright Statement

Copyright 2013 IEEE

Official URL:

DOI: doi:10.1109/ISSNIP.2013.6529815


Shellfish farms need to be closed from harvesting when the water body is contaminated to avoid a serious health hazard. We have designed a sensor network framework to monitor a number of water quality variables to check the health of shellfish farms and predict closure if hazardous. Because of the uncertainty associated with the data acquisition process, a full set of sensor values are not always available for decision making purposes. The prediction system thus needs to deal with missing values. Statistical approaches are commonly used to generate an artificial value to approximate a missing sensor reading and predictions are made on the then complete set of sensor values. In this paper we present a new method that is capable of making predictions without making artificial approximations of missing values. The idea is to train a set of classifiers on different subsets of sensor values. Given a set of available sensor values, a prediction is made by the classifier trained on the corresponding set of sensor values. We have evaluated the system on the data obtained from a number of shellfish farms in Tasmania. Experimental results demonstrate that the proposed method to deal with missing values can predict closures with high accuracy.

Item Details

Item Type:Refereed Conference Paper
Keywords:shellfish farm closure prediction, missing value estimation, sensor values
Research Division:Information and Computing Sciences
Research Group:Computer vision and multimedia computation
Research Field:Pattern recognition
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the environmental sciences
UTAS Author:D'Este, CE (Dr Claire D'Este)
UTAS Author:Timms, GP (Dr Gregory Timms)
ID Code:116705
Year Published:2013
Deposited By:Engineering
Deposited On:2017-05-17
Last Modified:2017-06-21

Repository Staff Only: item control page