A spatial information crawler for OpenGIS WFS

Jun Jiang · Chongjun Yang · Yingchao Ren

2 citations0/0 files storedProceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

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Geographic Information Systems Studies Environmental Monitoring and Data Management Web Data Mining and Analysis

Abstract

The growth of the internet makes it non-trivial to search for the accuracy information efficiently. Topical crawler, which is aiming at a certain area, attracts more and more intention now because it can help people to find out what they need. Furthermore, with the OpenGIS WFS (Web Feature Service) Specification developed by OGC (Open GIS Consortium), much more geospatial data providers adopt this protocol to publish their data on the internet. In this case, a crawler which is aiming at the WFS servers can help people to find the geospatial data from WFS servers. In this paper, we propose a prototype system of a WFS crawler based on the OpenGIS WFS Specification. The crawler architecture, working principles, and detailed function of each component are introduced. This crawler is capable of discovering WFS servers dynamically, saving and updating the service contents of the servers. The data collect by the crawler can be supported to a geospatial data search engine as its data source.

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