mehran@mldawn.com

Back-propagation with Cross-Entropy and Softmax

What will you learn? This post is also available to you in this video, should you be interested 😉 https://www.youtube.com/watch?v=znqbtL0fRA0&feature=youtu.be In our previous post, we talked about the derivative of the softmax function with respect to its input. We indeed beautifully dissect ed the math and got comfortable with it! In this post, we will …

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COVID-19 Analysis

Studying and Predicting the Progress of COVID-19 using Pandas and ARIMA COVID-19 has been around for nearly 4 months since the outbreak. In this notebook, we will study some of the useful statistics regarding number of confirmed/deaths/recovered cases as a function of time per each country/region. We will use the the dataset that has been …

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The Derivative of Softmax(z) Function w.r.t z

What will you learn? Ask any machine learning expert! They will all have to google the answer to this question: “What was the derivative of the Softmax function w.r.t (with respect to) its input again?” The reason behind this forgetfulness is that Softmax(z) is a tricky function, and people tend to forget the process of …

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ECML-PKDD-2019: Elliptical Basis Function Data Descriptor (EBFDD) for Anomaly Detection

ECML-PKDD-2019 on EBFDD networks for Anomaly Detection This paper introduces the Elliptical Basis Function Data Descriptor (EBFDD) network, a one-class classification approach to anomaly detection based on Radial Basis Function (RBF) neural networks. The EBFDD network uses elliptical basis functions, which allows it to learn sophisticated decision boundaries while retaining the advantages of a shallow …

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