Tag: math

  • What is deep learning?

    Deep learning is a buzz phrase that refers to a branches of machine learning that involve multiple, interactive layers of nonlinear data transformations. It’s deep because there are multiple layers, and it’s deep learning because the layers can communicate with one another. Deep learning techniques have been growing in accuracy and success and are interesting to…

  • Math Problem: from 2007 Colorado Math Olympiad

    The problem: Each cell of an 8×8 chessboard is filled with either a 0 or a 1. Prove that if we compute the sums of the numbers in each row, each column, and each of the two diagonals, at least three of the sums must be equal. I worked on this recently with some middle…

  • To 80s Hong Kong Pop With Love

    In the 80s, in June, when I was in graduate school, a friend called me up and asked if I wanted to make an impromptu trip from Berkeley, California to Vancouver, BC. He wanted to drive up and see his father, who was ill, and could use help driving. I had family in Vancouver too.…

  • Boost profits, analyze metrics

    Once upon a time in math, I studied metric spaces, spaces for which there exists a way to measure distances between points. At first glance the non-mathematician might say: yuck, this is the genesis and justification of corporate bean counting and turning people into numbers, stay the heck away from me. But this is not…

  • Math problem fun

    Yep, I like math problems. But just like anyone, I feel frustrated and stupid when I don’t get them. The thing is, the harder the problem, the more satisfying it is to solve it. Here’s a pretty easy one I did recently (it had me stumped for a while though): Find three positive, distinct integers…