In ordinary arithmetic, the decomposition of a number is finding two numbers that when multiplied together give the original number. For example, the number 12 can be decomposed into 3 and 4 because 3 * 4 = 12. There’s a … Continue reading
I wrote an article titled, “Weighted k-NN Classification Using Python” in the April 2019 issue of Visual Studio Magazine. See https://visualstudiomagazine.com/articles/2019/04/01/weighted-k-nn-classification.aspx. The weighted k-nearest neighbors (k-NN) classification algorithm is a relatively simple technique to predict the class of an item … Continue reading
I’ve been slowly but surely implementing core neural network functionality using the JavaScript language. My most recent exploration was modifying a back-propagation function so that it used momentum. The motivation is to speed up training. The idea is best explained … Continue reading
I recently gave a short workshop/talk at the tech company I work for on binary classification using the Keras neural network code library. The goal of a binary classification problem is to predict something that can take on one of … Continue reading
Even though I’m not a huge fan of JavaScript, I like the language more than most of my engineering / developer colleagues. Just for fun I decided to code up a function that selects n random integers from N. For … Continue reading
The basic ideas of cross entropy error and binary cross entropy error are relatively simple. But they’re often a source of confusion for developers who are new to machine learning because of the many topics related to how the two … Continue reading
A permutation of order n is an arrangement of the numbers 0 through n-1. For example, one permutation of order 5 is (4, 2, 0, 1, 3). Suppose you have an array of (“C”, “E”, “A”, “B”, “D”) and the … Continue reading
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