Smalltalk-80: the language and its implementation
Smalltalk-80: the language and its implementation
Minstrel-ODM: A basic office data model
Information Processing and Management: an International Journal
IOTA: a full text information retrieval system
Proceedings of the 9th annual international ACM SIGIR conference on Research and development in information retrieval
ACM Transactions on Information Systems (TOIS)
Information Retrieval
Introduction to Modern Information Retrieval
Introduction to Modern Information Retrieval
Lambda: An Entity-Relationship Based Query Language for the Retrieval of Structured Documents
Proceedings of the Fourth International Conference on Entity-Relationship Approach
Layered index structures in document database systems
Proceedings of the seventh international conference on Information and knowledge management
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We describe ESTRELLA a multimedia object oriented data model developed by MATRA. This model is based upon objects, classes (organized in a lattice) and functions (allow to dynamically implement operations on data and new data types). The valid states of the data base are described by a set of integrity constraints. We propose a document model capable to manage structured documents and to index them with a superimposed codes method. We present as well the associated data manipulation language with a navigational interface and content search operators