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Exploiting Ontology Structures and Unlabeled Data for Learning
journal contribution
posted on 2005-09-01, 00:00 authored by Nina Balcan, Avrim Blum, Yishay MansourWe present and analyze a theoretical model designed to understand and explain the effectiveness of ontologies for learning multiple related tasks from primarily unlabeled data. We present both information-theoretic results as well as efficient algorithms. We show in this model that an ontology, which specifies the relationships between multiple outputs, in some cases is sufficient to completely learn a classification using a large unlabeled data source