Self-organizing incremental neural network(SOINN) is a two layered,competitive learning based neural network which is able to represent the topology structure of input data and cluster online non-stationary data without prior knowledge,and also robust to noise.The incremental nature of SOINN enables it to learn novel patterns from data stream without affecting previously learned patterns.In this respect,it is appropriate to expect that SOINN could serve as a general approach to unsupervised learning problem...