V O R T R A G ********************** Oesterreichisches Forschungsinstitut fuer Artificial Intelligence(OFAI) der OSGK Freyung 6/6, A-1010 Wien Tel: +43-1-5336112-17, Fax: +43-1-5336112-77, Email: sec@ofai.at Prof.Dr. Miroslav Kubat Department of Electrical & Computer Engineering University of Miami, U.S.A. "MULTI-LABEL HIERARCHICAL CLASSIFICATION" Perhaps the most common machine-learning task is induction of classifiers from pre-classified training examples described by vectors or attribute values. The classifier's task is then to label a future object with the (single) class it belongs to. In many realistic domains, however, such object belongs to several classes at the same time; moreover there can be thousands of different classes, and they are often inter-related in ways captured by generalization trees or DAG graphs. What we need, then, is a Multi-Label Hierarchical Classifier. This, however, brings about certain difficulties that need to be understood. The talk discusses the problem of performance evaluation in domains of this kind, and then describes a novel system based on the now-popular support-vector machines. Experiments with real-world domains from the field of gene-function prediction then illustrate diverse aspects of this tool. ********* Time: Tuesday, 18th June 2013, 6.30 p.m. sharp Location: Oesterreichisches Forschungsinstitut fuer Artificial Intelligence, OFAI Freyung 6, Stiege 6, 1010 Wien OESTERREICHISCHES FORSCHUNGSINSTITUT FUER ARTIFICIAL INTELLIGENCE Univ.-Prof. Ing. Dr. Robert Trappl *********