Text Databases: One Database Model and Several Retrieval Languages
Rodopi, 1994 - 314 pagina's
Manipulation of text by means of the computer is well-established. Everybody has a word processor on his or her desk, and electronic mail, desk top publishing, text interchange languages, hypertext and multimedia are technologies many will be aware of.
However, the full potential of the computer for the management and use of textual information has not been tapped yet. Far from it. For this a more principled approach is necessary, which will create a framework on which existing technologies, and technologies-yet-to-come can build and in which they can be integrated.
This book can be seen as one step on this road. It employs the experience gained in working with a rich electronic linguistic corpus, the ECA database. A basic text database model is put forward and several text database retrieval languages are defined and analysed. A clear direction for further research is given.
Therefore, the book is of relevance to researchers and developers in the field of corpus linguistics and in the more general field of electronic text.
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atom bindings blocks boolean buildable_from called Mary chapter clause clause_atom codomain complex_sentence concordance list consecutive with respect consists construct corresponding cps object data structures defined denoted object described document type definition ECA database ECA project element type example expounded text expression feature values Figure formal function gaps grammar graph guage Hebrew Bible hierarchies interface jects keyword last train lexeme LLCORE matched objects MdE model Mdf database missed the last moby morpheme natural language nested noun object type object_block objects of type ordinal p-strings part_of part_of_speech pheme PHLIQA phrase_atom pow_m programming language QL def QL queries QUEST 1.0 system QUEST language recursive regular expression retrieval language rules semantics sentence set of monads SGML sheaf sifter specify straw string subsection surface text syntactic analysis syntax Table tags Tague text database model textual tion topograph retrieves topographic language translation tuple variable word_atom
Pagina 24 - ... of the database approach is that it provides some level of data abstraction by hiding details of data storage that are not needed by most database users. A data model is the main tool for providing this abstraction. A data model is a set of concepts that can be used to describe the structure of a database. By structure of a database we mean the data types, relationships, and constraints that should hold for the data.