Foundations of a Multidimensional Query Language for Digital Libraries
A query language for Digital Libraries is presented, which offers access to documents by structure and sophisticated usage of metadata. The language is based on a mathematical model of digital library documents, centered around a multilevel representation of documents as versions, views and manifestations. The core of the model is the notion of document view, which is recursive, and captures the content and structure of a document.The metadata representation distinguishes between formats and specifications, so being able to accommodate different metadata formats, even for the same document. A query is a logical formula, and its result are the digital library documents satisfying the user query.
KeywordsDigital Library Query Language Predicate Symbol Metadata Model Multimedia Information Retrieval
Unable to display preview. Download preview PDF.
- 1.Dublin core metadata element set, version 1.1:Reference description.http://dublincore.org/documents/dces/.
- 2.NCSTRL:Networked computer science technical reference library.http://www.ncstrl.org.
- 5.SCHOLNET:A digital library testbed to support networked scholarly communities.http://www.ercim.org/scholnet.
- 8.M. Brodie, J Mylopoulos, and J. Schmidt,editors.On Conceptual Modelling.Springer Verlag,1984.Google Scholar
- 9.D. Castelli and P. Pagano.OpenDLib:a digital library service system.In Proc.of ECDL2002,6th European Conf.on Research and Advance Technology for Digital Libraries, Rome, I, 2002.Google Scholar
- 10.D. Castelli and P. Pagano.Global system architecture report. Technical ReportD2.2.1,Scholnet Project Deliverable, 2001.http://www.ercim.org/scholnet/results.html.
- 11.P. Fejer and D. Simovici. Mathematical Foundations of Computer Science.Volume 1.Springer-Verlag, New York,1991.Google Scholar
- 13.Network Development Library of Congress and MARC Standards Office. MARC standards.http://lcweb.loc.gov/marc/.
- 15.J. Mylopoulos and A. Borgida. Some features of the Taxis data model. In Proc.of the 6th VLDB, pages 399–410, Montreal, CA,1980.Google Scholar
- 16.K.G. Saur. Functional requirements for bibliographic records.Final report.Technical report, Munchen,1998.http://www.i.a.org/VII/s13/frbr/frbr.pdf.