Istituto di Scienza e Tecnologie dell'Informazione     
Castelli D., Meghini C., Pagano P. Foundations of a multidimensional query language for digital libraries. In: Research and Advanced Technology for Digital Libraries. 6th European Conference. ECDL 2002 (Rome, Italy, September 2002 2002). Proceedings, pp. 251 - 265. Maristella Agosti, Costantino Thanos (eds.). (Lecture Notes in Computer Science, vol. 2458). Springer, 2002.
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.
Subject Query languages
H.3.7 Digital Libraries. Query formulation

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