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GPS-enabled mobile devices such as smart phones and tablets are extremely popular today. Billions of such devices are currently in use. The application and research potentials of these devices are limitless, but how accurate are these devices? The research team used Average Euclidean Error (AEE), Root Mean Square Error (RMSE), and Central Error (CE) to define and calculate the accuracy and precision...
Data was mined for the purpose of extracting data from an online source to compute and classify hydraulic geometry as well as providing additional data (channel stability, material, and evenness) for pattern discovery. Hydraulic geometry, the relationships between a stream's geometry (width and depth) and flow (velocity and discharge), is applicable to flood prediction, water resources management,...
The exponents of hydraulic geometry relations are unit-sum constrained (i.e., a composition), thus, a class of statistical methods called compositional data analysis must be employed to obviate the problem of spurious correlation. One of these methods, logratio linear modelling, is capable of establishing either linear or non-linear functional dependency between a composition (e.g., hydraulic geometry...
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