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What are talks about?
•Topic hierarchies provide
indexing terms
–ACM CCS topic hierarchy
–Open Directory
•Encoded as DAML ontologies
•These allow users to specify interests as well as browse the database of talks by topic
•Automatic classification of talks (based on title and abstract) and users (based on his web pages, CV, papers, etc.)
•Discovery of mapping rules between CCS to OD ontologies using IR techniques