Horsetail Fall (Yosemite) Horsetail Fall (Yosemite) Horsetail Fall, located in Yosemite National Park in California, is a seasonal waterfall that flows in the winter and early spring. The fall occurs on the east side of El Capitan. If Horsetail Fall is flowing in February and the weather conditions are just right, the setting sun illuminates the waterfall, making it glow orange and red. This natural phenomenon is often referred to as the "Firefall", a name that pays homage to the manmade Firefall that once took place in Yosemite. This waterfall descends in two streams side by side, the eastern one being the larger
Feature scaling of a feature vector such that the complete vector has length one. This usually means dividing each component by the Euclidean length of the vector: In some applications (e.g. Histogram features) it can be more practical to use the L1 norm (i.e. Manhattan Distance, City-Block Length or Taxicab Geometry) of the feature vector. This is especially important if in the following learning steps the Scalar Metric is used as a distance measure. In stochastic gradient descent, feature scaling can sometimes improve the convergence speed of the algorithm . In support vector machines, it can reduce the time to find support