Title :
Conditional Gaussian mixture models for environmental risk mapping
Author :
Gilardi, Nicolas ; Bengio, Samy ; Kanevski, Mikhail
Author_Institution :
Dalle Molle Inst. for Perceptual Artificial Intelligence, Martigny, Switzerland
Abstract :
This paper proposes the use of Gaussian mixture models to estimate conditional probability density functions in an environmental risk mapping context. A conditional Gaussian mixture model has been compared to, the geostatistical method of sequential Gaussian simulations and shows good performance in reconstructing the local PDF. The data sets used for this comparison are parts of the digital elevation model of Switzerland.
Keywords :
Gaussian processes; environmental factors; geophysical signal processing; geophysics computing; probability; Gaussian mixture models; Switzerland; conditional Gaussian mixture models; digital elevation model; environmental risk mapping; geostatistical method; local PDF reconstruction; local probability density function; sequential Gaussian simulations; Artificial intelligence; Artificial neural networks; Covariance matrix; Decision making; Digital elevation models; Neural networks; Prediction methods; Probability density function; Smoothing methods; Stochastic processes;
Conference_Titel :
Neural Networks for Signal Processing, 2002. Proceedings of the 2002 12th IEEE Workshop on
Print_ISBN :
0-7803-7616-1
DOI :
10.1109/NNSP.2002.1030100