Anomaly detection in traffic using Li-norm minimization extreme learning machine

Machine learning algorithms are widely used for traffic classification and anomaly detection nowadays, however, how to fast and accurately classify the flows remains extremely challengeable. In this paper, we propose an extreme learning machine (ELM) based algorithm called L1-Norm Minimization ELM, which fully inherits the merits of ELM, and meanwhile, exhibits the sparsity-induced characteristics which could reduce the complexity of learning model. At the evaluation stage, we preprocessed the raw data trace from trans-Pacific backbone link between Japan and the United States, and generated 248 features datasets. The empirical study shows that Li-ELM can achieve good generalization performance on the evaluation datasets, while preserving the fast learning and little human intervened advantages that ELM has. (C) 2014 Elsevier B.V. All rights reserved.