2. THEORY AND RELATED MATERIALS
This section discusses related learning techniques,
adopted previously in the literatures namely GA,
Fuzzy Logic, SOM and ANN [14-19]. Overviews of
the former three systems and their usages in flood
predictions are briefly mentioned, while more emphasis
will be put on detailed analyses of ANN variants
and their applications. Subsequently, Geographical
Information System (GIS) framework will be brought
into this context and com-ments on related materials
are provided.