A relational interface for heterogeneous information sources

Publication Type

Conference Proceeding Article

Publication Date

5-1997

Abstract

The World Wide Web today consists of a vast repository of diverse information distributed geographically across different locations. In the near future, this wealth of information will constitute the major bulk of information resources for digital library systems. To provide integrated access to web and other kinds of information sources, we believe that it is useful to first classify the space of digital library resources into "collection" and "reference spaces". Searching can be done by first querying the indices or metadata in the reference space, followed by retrieving the documents or data from the collection space. In this paper, we present an integrated SQL query interface for web search engines, bibliographic and relational databases. Bibliographic databases, web search engines and certain structured databases are important sources of information within the reference space. By extending the relational data model and the SQL language with new predicates, our integrated approach permits a user to specify complex queries to any or all of the three types of information sources simultaneously. This complex query service in turn improves the effectiveness of searching within the reference space.

Keywords

Digital library, Database, Relational, WWW, SQL

Discipline

Databases and Information Systems | Numerical Analysis and Scientific Computing

Publication

IEEE International Conference on Advances in Digital Libraries ADL '97: May 7-9, 1997, Santa Barbara: Proceedings

First Page

128

Last Page

139

ISBN

9780818680120

Identifier

10.1109/ADL.1997.601208

Publisher

IEEE Computer Society

City or Country

Los Alamitos, CA

Additional URL

http://doi.ieeecomputersociety.org/10.1109/ADL.1997.601208

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