a self-adjustment algorithm

based on GAP-RBF is proposed for solving how to

choose the overlap factorfor calculating neuron impact width.-In this paper, we propose a Constructive Enhancement

for OS-ELM (CEOS-ELM), which can add random

hidden nodes one-by-one or group-by-group with fixed or

varying group size. CEOS-ELM is searching for the optimal

network architecture during the sequential learning process,

and it can handle both additive and radial basis function

(RBF) hidden nodes.