jgg     2015 35 (1):  129-131    ISSN: 0412-1961  CN: 21-1139/TG The Unified Framework of the Regularization Techniques School of Science, Information Engineering University, 62 Kexue Road, Zhengzhou 450001, China Received: 2014-03-08  Revised: null  Online: 2015-02-06 Supporting info