PolarHub: NSF-sponsored global hub for OGC Web Service discoverability and accessibility!
The PolarHub team at the Arizona State University has launched a large-scale web crawler, PolarHub 1.0, to support the intelligent perception and discovery of distributed OGC web services on the ever-expanding World Wide Web. PolarHub introduces innovative web mining techniques to enable a scalable, sustainable, collaborative, and interactive platform for active discovery of OGC web services. As we are entering the era of big (geo) data, PolarHub becomes a new "surfboard" on this data deluge to support insightful geospatial data acquisition and analytics.
A prominent feature of PolarHub is the emphasis on collaborative data discovery and community involvement. Instead of running as a DAEMON program, PolarHub provides a Graphic User Interface that allows end users to interact with the PolarHub service repository to search for PolarHub-discovered services, to create a new Web crawling task to search for more service instances on the Internet, and to visualize dynamically the changing distribution pattern of identified services. The goal of PolarHub is to establish a central repository, or a global hub, for the widely dispersed OGC web services to increase their accessibility and reusability, to bridge the gap between service providers and service consumers, and eventually provide timely support for spatial decision-making and discovery of new knowledge!
PolarHub was sponsored by the National Science Foundation and it currently supports the web crawling for multiple types of OGC services, including WMS, WFS, WPS, WCS, CSW, SOS and others. Learn more about PolarHub here: http://polar.geodacenter.org/polarhub.
Wenwen Li leads the PolarHub project. She was an active participant in the recently completed OGC Testbed 10. – OGC Blog editor