Keyword and metadata extraction from pre-prints.

In this paper we study how to provide metadata for a pre-print archive. Metadata includes, but is not limited to, title, authors, citations, and keywords, and is used to both present data to the user in a meaningful way, and to index and cross-reference the pre-prints. We are particularly interested in studying different methods to obtain metadata for a pre-print. We have developed a system that automatically extracts metadata, and that allows the user to verify and correct metadata before it is accepted by the system.