Digital libraries: research and development : first international DELOS conference Pisa Italy February 13 14 2007 ; revised selected papers This book constitutes the thoroughly refereed post proceedings of the First International Conference on Digital Libraries DELOS 2007 held in Pisa Italy in February 13 14 2007. The 33 revised full papers presented were carefully reviewed and selected during two rounds of reviewing and improvement for inclusion in the book. The papers are organized in topical sections on similarity search architectures personalization interoperability evaluation miscellaneous preservation video data management 3D objects and peer to peer