IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 7 - WATER RESOURCES AND HYDROINFORMATICS : Integrating Relevance Vector Machine and Genetic Algorithm for Prediction of Phytoplankton Abundance...
Integrating Relevance Vector Machine and Genetic Algorithm for Prediction of Phytoplankton Abundance in Freshwater Reservoirs
Author : Zhengchao Xie, Inchio Lou, Wai Kin Ung and Kai Meng Mok
A hybrid intelligent model combining relevance vector machine (RVM) and genetic algorithms (GA) was developed for optimal control of parameters to predict (based on the current month?s variables) and forecast (based on the previous months? variables) the non-linear phytoplankton dynamics in Macau Main Storage Reservoir (MSR) that is experiencing algal bloom problems in recent years. The models used the comprehensive 8 years? monthly water quality data for training, and the most recent 3 years? monthly data for testing. Twenty four water quality variables including physical, chemical and biological parameters were involved. The nonlinear process with measurement noise was regressed by RVM that is based on Bayesian framework, and the near-optimal set points maximizing the objective function were sought by GA. The results showed that the RVM-GA based models are valuable in prediction and optimization of the complex nonlinear processes, and are feasible in understanding the algal bloom problem and predicting\forecasting the phytoplankton abundance. This method provides a useful tool for practical algal bloom control and raw water monitoring program.
File Size : 343,344 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Article : THEME 7 - WATER RESOURCES AND HYDROINFORMATICS
Date Published : 19/07/2016
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