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Abstract In this paper, a signature file method for indexing document database systems is presented. For this purpose, the
 

Summary: Abstract In this paper, a signature file method for indexing
document database systems is presented. For this purpose, the
concept of presentative word hierarchy is introduced, based on
which signature file hierarchies can be established. Together
with the concept of query signature hierarchy, it improves sig-
nificantly the retrieval efficiency of documents stored structur-
ally in object oriented databases.
1 Introduction
With the advent of information highways and digital libraries,
the issues of managing and accessing huge hypermedia docu-
ment bases become important. An interesting way to do so is to
integrate database technology into document management and
bring the very nature of database systems into this area, such as
query processing, efficient management of secondary storage,
version and update control, etc. In order to optimize query eval-
uation in document databases, indexing mechanism should be
supported to speed up the retrieval of documents structurally
stored.
Most, if not all, indexing techniques in databases are based on
tree or network structure. Key values in the index are linked

  

Source: Aberer, Karl - Faculté Informatique et Communications, Ecole Polytechnique Fédérale de Lausanne

 

Collections: Computer Technologies and Information Sciences