artlemboOct 16, 20185 minBig Data ResultsI wanted to revisit the taxi data example that I previously blogged about. I had a 6GB file of 16 million taxi pickup locations and 260 taxi zones. I wante...
artlemboJun 19, 20181 minGIS Analysis of Overlapping LayersSure you can solve it with a few for loops, inserting the results into a new table, but that really is a hassle. Also, I have to do it for different distan...
artlemboJul 23, 20162 minQGIS GPU Processing UpdateToday my students got to present some of their work at the Maryland Geographic Information Committee Quarterly meeting. On Monday we head to the University ...
artlemboJul 13, 20163 minMore QGIS/GPU progress – it’s getting faster…This summer I am working with three talented undergraduates as part of a National Science Foundation (NSF) program called Research Experience for Undergradua...
artlemboJun 29, 20162 minParallel Processing with QGISOnce again, I am continuing my role as a mentor in a National Science Foundation (NSF) Research Experience for Undergraduate program. This year we’ve decide...
artlemboJul 27, 20152 minFrom days to seconds: experiences with parallel processing and GIS (Part I, the team)Many of you know that I have been working with parallel processing for GIS in the form of video card general purpose, graphical processing units (GPGPU). How...
artlemboJul 7, 20152 minWhen More is Less…. lessons from processing large data filesMy good friend Stuart Hamilton gave me a fun conundrum to try out. He has a file of province boundaries (400 areas) and lidar derived mangrove locations (37 ...
artlemboJun 3, 20152 minAnother Radian Test – Finding the distance between lines and areasFollowing up on my previous post with ArcGIS and the Near Table, I created an SQL query in Manifold 8 to do both the near distances and group them by the num...
artlemboMay 22, 20150 minTesting Manifold Systems, Ltd. Experimental Parallel Processing Engine (Radian) – along with s
artlemboApr 20, 20154 minA Poor Man’s Parallel Processor for GISIn addition to SQL, I also am interested in processing large volumes of spatial data. One of the newest rages in “big data” is Hadoop. According to Wikiped...
