BEGIN:VCALENDAR
PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN
VERSION:1.0
BEGIN:VEVENT
DTSTART:20121114T001500Z
DTEND:20121114T020000Z
LOCATION:East Entrance
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: Geographic Information System (GIS) community has always perceived the processing of extremely large vector-based spatial datasets as a challenging research problem. This has not been for the lack of individual parallel algorithms, but as we discovered, it is because of the irregular and data intensive nature of the underlying computation. While effective systems for parallel processing of raster-based spatial data files are abundant in the literature, there is only meager amount of reported system work that deals with the complexities of vector (polygonal) data and none on cloud platform. We have created an open-architecture-based system named Crayons for Azure cloud platform using state-of-the-art techniques. The Crayons system scales well for sufficiently large datasets, achieving end-to-end absolute speedup of over 28-fold employing 100 Azure processors. For smaller, more irregular workload, it still yields over 9-fold speedup.
SUMMARY:Crayons: An Azure Cloud Based Parallel System for GIS Overlay Operations
PRIORITY:3
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END:VCALENDAR