Automatic text processing
From structured documents to novel query facilities
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
A query language and optimization techniques for unstructured data
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
Information gathering in the World-Wide Web: the W3QL query language and the W3QS system
ACM Transactions on Database Systems (TODS)
WWW '99 Proceedings of the eighth international conference on World Wide Web
Document processing in a relational database system
ACM Transactions on Information Systems (TOIS)
Author's Guide to the Standard Generalized Markup Language
Author's Guide to the Standard Generalized Markup Language
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Most of Information Retrieval models for documents are intended for SGML-like structured documents. In the context of medical informatics, the Patient Record document needs a looser structuration process as an a priori structure can hardly be defined. Thus we propose an authoring tool that allows to annotate embedded information, i.e. to give them a context, with qualifiers that are stored in a thesaurus rather than in SGML-like DTD. The retrieval process in the Patient Records collection takes into account the flexibility of the qualifying process while reformulating the queries (synonymy, generalization and specialization relationships between qualifiers).