A knowledge discovery process for spatiotemporal data: Application to river water quality monitoring - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Ecological Informatics Year : 2015

A knowledge discovery process for spatiotemporal data: Application to river water quality monitoring

Un proces d'extraction de connaissances à partir de données spatio-temporelles : application à la surveillance de la qualité de l'eau des rivières

Abstract

Rapid population growth and human activity (such as agriculture, industry, transports,...) development have increased vulnerability risk for water resources. Due to the complexity of natural processes and the numerous interactions between hydro-systems and human pressures, water quality is difficult to be quantified. In this context, we present a knowledge discovery process applied to hydrological data. To achieve this objective, we combine successive methods to extract knowledge on data collected at stations located along several rivers. Firstly, data is pre-processed in order to obtain different spatial proximities. Later, we apply a standard algorithm to extract sequential patterns. Finally we propose a combination of two techniques (1) to filter patterns based on interest measure, and; (2) to group and present them graphically, to help the experts. Such elements can be used to assess spatialized indicators to assist the interpretation of ecological and river monitoring pressure data.
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Dates and versions

hal-01130144 , version 1 (11-03-2015)

Identifiers

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Hugo Alatrista Salas, Jérôme Azé, Sandra Bringay, Flavie Cernesson, Nazha Selmaoui-Folcher, et al.. A knowledge discovery process for spatiotemporal data: Application to river water quality monitoring. Ecological Informatics, 2015, 26 (2), pp.127-139. ⟨10.1016/j.ecoinf.2014.05.011⟩. ⟨hal-01130144⟩
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