On querying geospatial and georeferenced metadata resources in G-portal

Zehua Liu; Ee Peng Lim; Wee Keong Ng; D. H. Goh

doi:10.1109/JCDL.2003.1204871

On querying geospatial and georeferenced metadata resources in G-portal

Zehua Liu, Ee Peng Lim, Wee Keong Ng, D. H. Goh

Nanyang Technological University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

G-Portal is a web portal system providing a range of digital library services to access geospatial and georeferenced resources on the Web. Among them are the storage and query subsystems that provide a central repository of metadata resources organized under different projects. In GPortal, all metadata resources are represented in XML (Extensible Markup Language) and they are compliant to some resource schemas defined by their creators. The resource schemas are extended versions of a basic resource schema making it easy to accommodate all kinds of metadata resources while maintaining the portability of resource data. To support queries over the geospatial and georeferenced metadata resources, a XQuery-like query language known as RQL (Resource Query Language) has been designed. In this paper, we present the RQL language features and provide some experimental findings about the storage design and query evaluation strategies for RQL queries.

Original language	English
Title of host publication	Proceedings - 2003 Joint Conference on Digital Libraries, JCDL 2003
Editors	Lois Delcambre, Geneva Henry, Catherine C. Marshall
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	245-255
Number of pages	11
ISBN (Electronic)	0769519393
DOIs	https://doi.org/10.1109/JCDL.2003.1204871
Publication status	Published - 2003
Externally published	Yes
Event	2003 Joint Conference on Digital Libraries, JCDL 2003 - Houston, United States Duration: May 27 2003 → May 31 2003

Publication series

Name	Proceedings of the ACM/IEEE Joint Conference on Digital Libraries
Volume	2003-January
ISSN (Print)	1552-5996

Conference

Conference	2003 Joint Conference on Digital Libraries, JCDL 2003
Country/Territory	United States
City	Houston
Period	5/27/03 → 5/31/03

Bibliographical note

Publisher Copyright:
© 2003 IEEE.

ASJC Scopus Subject Areas

General Engineering

Keywords

Database languages
Earth
Information systems
Knowledge representation
Portals
Project management
Query processing
Resource management
Software libraries
XML

Access to Document

10.1109/JCDL.2003.1204871

Cite this

Liu, Z., Lim, E. P., Ng, W. K., & Goh, D. H. (2003). On querying geospatial and georeferenced metadata resources in G-portal. In L. Delcambre, G. Henry, & C. C. Marshall (Eds.), Proceedings - 2003 Joint Conference on Digital Libraries, JCDL 2003 (pp. 245-255). Article 1204871 (Proceedings of the ACM/IEEE Joint Conference on Digital Libraries; Vol. 2003-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/JCDL.2003.1204871

Liu, Zehua ; Lim, Ee Peng ; Ng, Wee Keong et al. / On querying geospatial and georeferenced metadata resources in G-portal. Proceedings - 2003 Joint Conference on Digital Libraries, JCDL 2003. editor / Lois Delcambre ; Geneva Henry ; Catherine C. Marshall. Institute of Electrical and Electronics Engineers Inc., 2003. pp. 245-255 (Proceedings of the ACM/IEEE Joint Conference on Digital Libraries).

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abstract = "G-Portal is a web portal system providing a range of digital library services to access geospatial and georeferenced resources on the Web. Among them are the storage and query subsystems that provide a central repository of metadata resources organized under different projects. In GPortal, all metadata resources are represented in XML (Extensible Markup Language) and they are compliant to some resource schemas defined by their creators. The resource schemas are extended versions of a basic resource schema making it easy to accommodate all kinds of metadata resources while maintaining the portability of resource data. To support queries over the geospatial and georeferenced metadata resources, a XQuery-like query language known as RQL (Resource Query Language) has been designed. In this paper, we present the RQL language features and provide some experimental findings about the storage design and query evaluation strategies for RQL queries.",

keywords = "Database languages, Earth, Information systems, Knowledge representation, Portals, Project management, Query processing, Resource management, Software libraries, XML",

author = "Zehua Liu and Lim, {Ee Peng} and Ng, {Wee Keong} and Goh, {D. H.}",

note = "Publisher Copyright: {\textcopyright} 2003 IEEE.; 2003 Joint Conference on Digital Libraries, JCDL 2003 ; Conference date: 27-05-2003 Through 31-05-2003",

year = "2003",

doi = "10.1109/JCDL.2003.1204871",

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Liu, Z, Lim, EP, Ng, WK & Goh, DH 2003, On querying geospatial and georeferenced metadata resources in G-portal. in L Delcambre, G Henry & CC Marshall (eds), Proceedings - 2003 Joint Conference on Digital Libraries, JCDL 2003., 1204871, Proceedings of the ACM/IEEE Joint Conference on Digital Libraries, vol. 2003-January, Institute of Electrical and Electronics Engineers Inc., pp. 245-255, 2003 Joint Conference on Digital Libraries, JCDL 2003, Houston, United States, 5/27/03. https://doi.org/10.1109/JCDL.2003.1204871

On querying geospatial and georeferenced metadata resources in G-portal. / Liu, Zehua; Lim, Ee Peng; Ng, Wee Keong et al.
Proceedings - 2003 Joint Conference on Digital Libraries, JCDL 2003. ed. / Lois Delcambre; Geneva Henry; Catherine C. Marshall. Institute of Electrical and Electronics Engineers Inc., 2003. p. 245-255 1204871 (Proceedings of the ACM/IEEE Joint Conference on Digital Libraries; Vol. 2003-January).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Liu Z, Lim EP, Ng WK, Goh DH. On querying geospatial and georeferenced metadata resources in G-portal. In Delcambre L, Henry G, Marshall CC, editors, Proceedings - 2003 Joint Conference on Digital Libraries, JCDL 2003. Institute of Electrical and Electronics Engineers Inc. 2003. p. 245-255. 1204871. (Proceedings of the ACM/IEEE Joint Conference on Digital Libraries). doi: 10.1109/JCDL.2003.1204871

On querying geospatial and georeferenced metadata resources in G-portal

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

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Cite this