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User-centric recommendation-based approximate information retrieval from marine sensor data


Chen, Zhao and Shahriar, MS and Kang, BH, User-centric recommendation-based approximate information retrieval from marine sensor data, Proceedings of the12th Pacific Rim Knowledge Acquisition Workshop, 5-6 September 2012, Kuching, Malaysia, pp. 58-72. ISBN 978-3-642-32541-0 (2012) [Refereed Conference Paper]

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Copyright 2012 Springer-Verlag Berlin Heidelberg

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Due to the wide use of low-cost sensors in environmental monitoring, there is an increasing concern on the stability of marine sen- sor network (MSN) and reliability of data collected. With the dramatic growth of data collected with high sampling frequency from MSN, the query answering for environment phenomenon at a specific time is in- evitably compromised. This study proposes a simple approximate query answering system to improve query answering service, which is motivated by sea water temperature data collected in Tasmania Marine Analysis and Network (TasMAN). The paper first analyses the problems of spe- cial interest in missing readings in time series of sea water temperature. Some current practices on approximate query answering and forecasting are reviewed, and after that some methods of gap filling and forecasting (e.g. Linear Regression (LR), Quadratic Polynomial Regression (QPR), Moving Average (MA) and Autoregressive Integrated Moving Average (ARIMA)) are introduced in designing the simple approximate query answering system. It is followed by experiments on gap filling of time series with artificial noise made in the original time series. Finally, the comparison of different algorithms in terms of accuracy, computation time, extensibility (i.e. scalability) is presented with recommendations. The significance of this research lies in the evaluation of different sim- ple methods in forecasting and gap filling in real time series, which may contribute to studies in time series analysis and knowledge discovery, especially in marine science domain.

Item Details

Item Type:Refereed Conference Paper
Keywords:sensor data, data and knowledge acquisition, approximate information retrieval, statistical and machine learning
Research Division:Information and Computing Sciences
Research Group:Computer vision and multimedia computation
Research Field:Pattern recognition
Objective Division:Information and Communication Services
Objective Group:Information systems, technologies and services
Objective Field:Information systems, technologies and services not elsewhere classified
UTAS Author:Chen, Zhao (Mr Zhao Chen)
UTAS Author:Kang, BH (Professor Byeong Kang)
ID Code:81537
Year Published:2012
Deposited By:Information and Communication Technology
Deposited On:2012-12-13
Last Modified:2018-04-04

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