GPS World

Nightmare on GIS Street: Accuracy, Datums, and Geospatial Data

This subject scares me. I’m not a trained geodesist. I’m not a mathematician. Yet, I’d be derelict in my duty if I didn’t write about this subject. I know enough to be dangerous, and enough to know ...
Scientific Research Publishing

Revelle, W. and Revelle, M.W. (2015) Package ‘Psych’. The Comprehensive R Archive Network.

ABSTRACT: Most GIS databases contain data errors. The quality of the data sources such as traditional paper maps or more recent remote sensing data determines spatial data quality. In the past several ...
Scientific Research Publishing

Gamer, M., Lemon, J., Gamer, M.M., Robinson, A. and Kendall’s, W. (2012) Package ‘IRR’. Various Coefficients of Interrater Reliability and Agreement.

ABSTRACT: Most GIS databases contain data errors. The quality of the data sources such as traditional paper maps or more recent remote sensing data determines spatial data quality. In the past several ...
Los Angeles Times

Digital mapping files are public records, state Supreme Court rules

The California Supreme Court ruled Monday that digital mapping files known as geographic information systems must be released under the state’s public records law. The decision could make it easier ...