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Why not Square Error for Classification?

Win Vector LLC has been developing and delivering a lot of “statistics, machine learning, and data science for engineers” intensives in the past few years. These are bootcamps, or workshops, designed to help software engineers become more comfortable with machine learning and artificial intelligence tools. The current thinking is: not […]

Let A be a Pedant and Let B be a Pedant

One of my favorite mathematical anecdotes is the following story that Gian-Carlo Rota told about Solomon Lefschetz: He [Solomon Lefschetz] liked to repeat, as an example of mathematical pedantry, the story of one of E. H. Moore’s visits to Princeton, when Moore started a lecture by saying, “Let a be […]