Algorithm Spotted the Ebola Outbreak Before WHO Announced It

Disease surveillance—monitoring the spread of infection in order to predict its pattern—is vital to any attempt to prevent a pandemic. In the case of the current Ebola outbreak in Central and Western Africa, on-the-ground surveillance is tough. With too few medical resources such as labs to process diagnostic tests, and with international organizations like the …

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Polar Plots and Circular Statistics in ArcGIS

Direction can be difficult to analyze statistically because of its circular nature. The difference between 1 degree and 360 degrees is the same as the difference between 1 degree and 2 degrees, making it difficult to plug into a typical statistical model. There are issues we often face with directional data while describing and analyzing it. Currently in …

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Mapping a Mission to Mars: GIS Aids in Planning the Terrestrial Phase of Mars Science Laboratory Mission

Mission planners at the National Aeronautics and Space Administration (NASA) and Jet Propulsion Laboratory (JPL) hugged, hollered, and high-fived when the most sophisticated scientific instrument in the history of interplanetary exploration gently landed on the desert planet this past August. The Mars Science Laboratory (MSL), a compact car-sized rover designed to roam an ancient impact …

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