Feature Engineering for Machine Learning by Alice Zheng & Amanda Casari

Feature Engineering for Machine Learning by Alice Zheng & Amanda Casari

Author:Alice Zheng & Amanda Casari
Language: eng
Format: epub
Publisher: O'Reilly Media, Inc.
Published: 2018-04-10T04:00:00+00:00


Tips for Navigating Linear Algebra Formulas

To stay oriented in the world of linear algebra, keep track of which quantities are scalars, which are vectors, and which way the vectors are oriented—vertically or horizontally. Know the dimensions of your matrices, because they often tell you whether the vectors of interest are in the rows or columns. Draw the matrices and vectors as rectangles on a page and make sure the shapes match. Just as one can get far in algebra by noting the units of measurement (distance is in miles, speed is in miles per hour), in linear algebra all one needs are the dimensions.



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