This volume contains the proceedings of the EurpoeanConference on Machine Learning (ECML-93), continuing thetradition of the five earlier EWSLs (European WorkingSessions on Learning). The aim of these conferences is toprovide a platform for presenting the latest results in thearea of machine learning. The ECML-93 programme included invited talks, selectedpapers, and the presentation of ongoing work in postersessions. The programme was completed by several workshopson specific topics. The volume contains papers relatedto all these activities. The first chapter of the proceedings contains two invitedpapers, one by Ross Quinlan and one by Stephen Muggleton oninductive logic programming. The second chapter contains 18scientific papers accepted for the main sessions of theconference. The third chapter contains 18 shorter positionpapers. The final chapter includes three overview papersrelated to the ECML-93 workshops.