Towards a semantics-based approach in the development of geographic portals

Athanasis, Nikolaos; Kalabokidis, Kostas; Vaitis, Michail; Soulakellis, Nikolaos

doi:10.1016/j.cageo.2008.01.014

Cited by 36 publications

(27 citation statements)

References 21 publications

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“…Access to geographic information has also been facilitated using the new technologies embedded in Web 2.0 and has gained rapid dissemination through WGIS systems on the internet (Su et al 2000;Athanasis et al 2009). As a result, WGIS has become an essential tool for SDI in many countries (e.g., Maguire and Longley 2005;Koshkarev et al 2008);Beaumont et al 2005;Rao et al 2002).…”

Section: Discussionmentioning

confidence: 99%

Web-oriented GIS system for monitoring, conservation and law enforcement of the Brazilian Amazon

et al. 2009

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A web GIS (WGIS) system for the Brazilian Amazon, named ImazonGeo and based on open source and public domain data, is presented. ImazonGeo was built following three principles. First, the system is based on Spatial Data Infrastructure architecture and web interface built using free software and public domain data. Second, we went beyond visualization of maps and spatial queries by providing information obtained with spatial analysis models. To do that, we designed a database that stores the results of previously defined spatial analyses and developed customized reports and query tools to facilitate fast access of information by end-users. Finally, the system is application-oriented in the areas of forest monitoring, conservation and forest law enforcement, meaning that it aims to contribute to support the protection of Brazilian Amazon forests. We illustrate these principles by presenting ImazonGeo's technology, architecture, content and tools. Moreover, we present two successful cases to demonstrate how the system is being used. We conclude the paper discussing the challenges and potential solutions to turning our WGIS-SDI system into an internet hub of geoinformation about the Brazilian Amazon.

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Section: Discussionmentioning

confidence: 99%

Web-oriented GIS system for monitoring, conservation and law enforcement of the Brazilian Amazon

et al. 2009

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“…There are situations where browsing through hyperlinked pages is more appropriate than querying, such as where users have no clear idea of their information need, or they are not proficient with the keyword-based techniques provided (Lucarella and Zanzi, 1996). By following navigation-based mechanisms, useful resources can be explored in a more intuitive way (Athanasis et al, 2005(Athanasis et al, , 2009, and time is not wasted to scan through the results to reject those that are irrelevant (Marshall and Shipman, 1997).…”

Section: Introductionmentioning

confidence: 99%

OntoFire: an ontology-based geo-portal for wildfires

Kalabokidis

Athanasis

Vaitis

2011

Nat. Hazards Earth Syst. Sci.

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Abstract.With the proliferation of the geospatial technologies on the Internet, the role of geo-portals (i.e. gateways to Spatial Data Infrastructures) in the area of wildfires management emerges. However, keyword-based techniques often frustrate users when looking for data of interest in geo-portal environments, while little attention has been paid to shift from the conventional keyword-based to navigation-based mechanisms. The presented OntoFire system is an ontologybased geo-portal about wildfires. Through the proposed navigation mechanisms, the relationships between the data can be discovered, which would otherwise not be possible when using conventional querying techniques alone. End users can use the browsing interface to find resources of interest by using the navigation mechanisms provided. Data providers can use the publishing interface to submit new metadata, modify metadata or removing metadata in/from the catalogue. The proposed approach can improve the discovery of valuable information that is necessary to set priorities for disaster mitigation and prevention strategies. OntoFire aspires to be a focal point of integration and management of a very large amount of information, contributing in this way to the dissemination of knowledge and to the preparedness of the operational stakeholders.

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“…Common GeoPortal development systems, technologies and system designs are also being presented in literature. The benefits of Web 2.0 technologies in GeoPortal systems (Bertrand, 2010), The Geospatial Portal Reference Architecture (Liu et al, 2008), A semantic spatial data search tool for E-Government GeoPortal (Wiegand, 2007), GeoPortal development technologies (Tait, 2005), The thematic map production via web services and (Rautenbach et al, 2013), Spatial data integration to GeoPortal , Resource Description Framework (RDF) tool to search spatial data in GeoPortal (Athanasis et al, 2009) and existing GeoPortals and developing their search and mapping technologies (Frehner and Brandli, 2006).…”

Section: F Sarimentioning

confidence: 99%

Design and Implementation of an Open Access Geoportal

Sarı¹

2018

Scitech

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GeoPortal Systems are being considered one of the most important object in interoperability concept for Spatial data Management. With the developing technology of the information age, the need for accessing to spatial data is caused to effort for establishing national, regional and local information systems by institutes and organizations. Sharing and accessing of spatial datasets between institutes and organizations are being more important within interoperability concept. In this study, Open Access GeoPortal System is designed and applied to establish a common platform for institutes/organizations to analyze, interact, view, query and share spatial data. Open Access GeoPortal System, which is aimed to develop effective solutions in the field of using and sharing spatial data and establish interoperability concept, intends to provide an infrastructure for users to realize functions related with spatial data on web without installing any software. Open Access GeoPortal System is providing standardization stage acceleration, interoperability concept establishment and solutions to problems of spatial data thanks to the developed functions and processes which are working on international standardization organizations as like INSPIRE, ISO, W3C and OGC.

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Towards a semantics-based approach in the development of geographic portals

Cited by 36 publications

References 21 publications

Web-oriented GIS system for monitoring, conservation and law enforcement of the Brazilian Amazon

Web-oriented GIS system for monitoring, conservation and law enforcement of the Brazilian Amazon

OntoFire: an ontology-based geo-portal for wildfires

Design and Implementation of an Open Access Geoportal

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