Journal ArticleDOI
A data base management system for document retrieval applications
TLDR
The capabilities of the Mistral/11 document retrieval system, which is based on the relational data model and designed for general document retrieval applications, are outlined.About:
This article is published in Information Systems.The article was published on 1981-01-01. It has received 30 citations till now. The article focuses on the topics: Data retrieval & Document retrieval.read more
Citations
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Journal ArticleDOI
Signature files: an access method for documents and its analytical performance evaluation
TL;DR: In this paper two methods for creating signatures are studied analytically, one based on word signatures and the other on superimposed coding, and performance comparisons of the two methods based on these formulas are provided.
Journal ArticleDOI
Access methods for text
TL;DR: This paper compares text retrieval methods intended for office systems with methods from database systems and from information retrieval systems, and examines the most interesting representatives of each class.
Journal ArticleDOI
Principles of programming with complex objects and collection types
TL;DR: A new principle for the development of database query languages that the primitive operations should be organized around types is presented, in which a number of well-known languages are to be found as natural sublanguages.
Journal ArticleDOI
Multikey access methods based on superimposed coding techniques
TL;DR: For large data files, it is shown that the two-level implementation is generally more efficient for queries with a small number of matching records and when blocks of records match the query but individual records within these blocks do not.
Journal ArticleDOI
The power of languages for the manipulation of complex values
Serge Abiteboul,Catriel Beeri +1 more
TL;DR: A general model for complex values, and languages for it based on the three paradigms, shown to be related to the functional, style of programming advocated by Backus (1978).
References
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Journal ArticleDOI
A relational model of data for large shared data banks
TL;DR: In this article, a model based on n-ary relations, a normal form for data base relations, and the concept of a universal data sublanguage are introduced, and certain operations on relations are discussed and applied to the problems of redundancy and consistency in the user's model.
Journal Article
A relational model of data for large shared data banks. 1970
TL;DR: A model based on n-ary relations, a normal form for data base relations, and the concept of a universal data sublanguage are introduced and certain operations on relations are discussed and applied to the problems of redundancy and consistency in the user's model.
Journal ArticleDOI
SEQUEL 2: a unified approach to data definition, manipulation, and control
Donald D. Chamberlin,Morton M. Astrahan,Kapali P. Eswaran,P. P. Griffiths,Raymond A. Lorie,J. W. Mehl,Phyllis Reisner,B. W. Wade +7 more
TL;DR: SEQUEL 2 is a relational data language that provides a consistent, English keyword-oriented set of facilities for query, data definition, data manipulation, and datac ontrol.
Journal ArticleDOI
B-trees re-examined
Gerald Held,Michael Stonebraker +1 more
TL;DR: The B-tree and its variants have, with increasing frequency, been proposed as a basic storage structure for multiuser database applications and three potential problems which must be dealt with in such a structure are indicated.
Journal ArticleDOI
SEQUEL as a Language for Document Retrieval.
TL;DR: In this article it is shown how SEQUEL, a language designed for use in a data base management system, is potentially suited to a document retrieval system.