ZHANG, Ruda December 02, 2018:  More on SVD, graph mining, Monte Carlo in econometrics, commercial satellite imagery; text formatting/reflow. [20eea16]
ZHANG, Ruda March 23, 2018:  More on WADGPS, map elements; topology/manifold, math branches, Taleb on probability [46880f6]
Ruda Zhang September 15, 2017:  Add osmium commands [a944403]
Ruda Zhang January 11, 2017:  JOSM plugins and shortcuts. [c0ccfaf]
Ruda Zhang January 09, 2017:  JOSM productivity tips. [1e84f05]
Ruda Zhang January 08, 2017:  Add Google Maps: data and API [d14f24b]
Ruda Zhang January 04, 2017:  JOSM features and shortcuts. [dde4a19]
Ruda Zhang January 03, 2017:  Geospatial data formats and standards. [507a2d2]
Ruda Zhang November 08, 2016:  OSM extract update methods. [f0c759f]
Ruda Zhang November 07, 2016:  OSM change files. [dd8eca5]
Ruda Zhang November 07, 2016:  OSM data structure, file format, API calls. [17f70eb]
Ruda Zhang November 02, 2016:  OSM tools and icons. [b91491b]
Ruda Zhang October 31, 2016:  OSM file formats and GeoJSON. [6664d49]
Ruda Zhang October 31, 2016:  Modify road classifications. [a79b3db]
Ruda Zhang October 31, 2016:  Add TOC [3017916]
Ruda Zhang October 31, 2016:  OSM data structure and tools. [f28b7f4]
Ruda Zhang October 30, 2016:  Third level list need more than 4 spaces indentation. [caffef5]
Ruda Zhang October 29, 2016:  Documenting OSM tools [eb22db2]
Ruda Zhang August 07, 2016:  Replace tab with two spaces. [adaa87b]
Ruda Zhang July 05, 2016:  Add leaflet, QGIS; notes on decision trees. [9f2e957]
Ruda Zhang June 26, 2016:  one sentence per line [e15360a]
Ruda Zhang June 26, 2016:  add category tag to wiki pages [a9b356c]
Ruda Zhang June 26, 2016:  Use internal link for wiki pages. [22daaba]
Ruda Zhang June 26, 2016:  use canonical filename and no internal H1 [eeca8ff]
Ruda Zhang June 26, 2016:  flatten repo structure with manual /category indexing [6dbf2d2]