Accessing Distributed WFS Data Through A RDF Query Interface

What:
Presentation
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When:
Thursday Sep 29   02:30 PM to 02:50 PM (20 minutes)
Tags:
WFSRDFSPARQL
Discussion:
0
Geospatial data stored in databases and other formats can be accessed through Web Feature Service (WFS). However, it is not convenient to access data in multiple WFS servers since WFS protocol is geared towards single server. In this paper, we propose an algorithm to query and synthesize distributed WFS data through a RDF query interface, where users can specify data requests to multiple WFS servers using a single RDF query. The algorithm translates each RDF query written in SPARQL-like syntax to multiple WFS get-feature requests, and then convert the WFS results to answers to the original query. A lightweight Web-based prototype is implemented based on this approach.
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Participant
University of Connecticut
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