http://jcm.sagepub.com/ Journal of Composite Materials http://jcm.sagepub.com/content/early/2014/02/03/0021998314521258 The online version of this article can be found at: DOI: 10.1177/0021998314521258 published online 4 February 2014 Journal of Composite Materials Hossein Heidary, Navid Zarif Karimi, Mehdi Ahmadi, Abdolreza Rahimi and Andrea Zucchelli unsupervised classifiers Clustering of acoustic emission signals collected during drilling process of composite materials using Published by: http://www.sagepublications.com On behalf of: American Society for Composites can be found at: Journal of Composite Materials Additional services and information for http://jcm.sagepub.com/cgi/alerts Email Alerts: http://jcm.sagepub.com/subscriptions Subscriptions: http://www.sagepub.com/journalsReprints.nav Reprints: http://www.sagepub.com/journalsPermissions.nav Permissions: What is This? - Feb 4, 2014 OnlineFirst Version of Record >> at UNIV FED DO RIO DE JANEIRO on September 20, 2014 jcm.sagepub.com Downloaded from at UNIV FED DO RIO DE JANEIRO on September 20, 2014 jcm.sagepub.com Downloaded from