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| Paper: |
SkyQuery -- A Prototype Distributed Query Web Service for the Virtual Observatory |
| Volume: |
295, Astronomical Data Analysis Software and Systems XII |
| Page: |
31 |
| Authors: |
Budavári, T.; Malik, T.; Szalay, A. S.; Thakar, A. R.; Gray, J. |
| Abstract: |
We present SkyQuery, a distributed query system for astronomical catalogs. Using XML Web Services, SkyQuery federates data-bases at different locations and provides a programming and user interface to access catalog data as easily as if they were in a single database server. The data nodes, called SkyNodes, make their catalogs available by implementing a Web services interface. They may be written in any programming language and hosted on any platform, since the underlying technology is inherently interoperable. SkyQuery recursively performs an implicit probabilistic spatial join of the catalogs on the fly and returns the selected properties from the chosen surveys along with a best guess spatial position and the probability of the match being correct. |
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