Category Archives: Keras

Sentiment Analysis Using the Keras Library

Posted on November 16, 2018 by jamesdmccaffrey

I wrote an article titled “Sentiment Analysis Using Keras” in the November 2018 issue of Visual Studio Magazine. See https://visualstudiomagazine.com/articles/2018/11/01/sentiment-analysis-using-keras.aspx. In the article, I use the standard IMDB movie review dataset and create a prediction model that will accept the … Continue reading →

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Installing TensorFlow and Keras on Windows without a Live Internet Connection

Posted on October 31, 2018 by jamesdmccaffrey

I’ve taught workshops on TensorFlow and Keras several times. I always like to start by going through the installation process because it’s not trivial and the process reveals several ideas that are very important. I’ve got a workshop coming up … Continue reading →

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Free “Keras Succinctly” Book

Posted on October 10, 2018 by jamesdmccaffrey

I wrote a short book titled “Keras Succinctly” that was published a few days ago. You can get the book in PDF format for free. See https://www.syncfusion.com/ebooks/cntk-succinctly. Book Web site The book has seven chapters, and each chapter describes how … Continue reading →

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A Look at CNTK v2.6 and the Iris Dataset

Posted on October 8, 2018 by jamesdmccaffrey

Version 2.6 of CNTK was released a few weeks ago so I figured I’d update my system and give it a try. CNTK (“Cognitive Network Tool Kit”) is Microsoft’s neural network code library. Primary alternatives include Google’s TensorFlow and Keras … Continue reading →

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Managing Neural Network Library Versions

Posted on September 12, 2018 by jamesdmccaffrey

I regularly use four neural network code libraries: TensorFlow, Keras, PyTorch, and CNTK. The libraries require Python. Managing all the different versions of these libraries is an annoying detail that has to be taken care of very carefully. I recently … Continue reading →

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Binary Classification Using Keras

Posted on August 31, 2018 by jamesdmccaffrey

I wrote an article titled “How to do Neural Binary Classification Using Keras” in the August 2018 issue of Visual Studio Magazine. See https://visualstudiomagazine.com/articles/2018/08/30/neural-binary-classification-keras.aspx. The goal of a binary classification problem is to make a prediction for a problem where … Continue reading →

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Neural Regression using Keras

Posted on July 24, 2018 by jamesdmccaffrey

I wrote an article titled “Neural Regression using Keras” in the July 2018 issue of Visual Studio Magazine. See https://visualstudiomagazine.com/articles/2018/07/23/neural-regression-using-keras.aspx. The goal of a regression problem is to make a prediction of a numeric value. For example, you might want … Continue reading →

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Displaying an MNIST Digit Yet Once Again

Posted on July 14, 2018 by jamesdmccaffrey

It seems like there are some mini-problems that I do over and over. Displaying an MNIST digit is one such mini-problem. I’m in the process of writing an article for Visual Studio Magazine ( https://visualstudiomagazine.com/Home.aspx ) and the topic is … Continue reading →

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The Keras MNIST Example using Model Instead of Sequential

Posted on July 10, 2018 by jamesdmccaffrey

Just for fun, I decided to code up the classic MNIST image recognition example using Keras. I started by doing an Internet search. I found the EXACT same code repeated over and over by multiple people. The original code comes … Continue reading →

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A Denoising Autoencoder

Posted on July 2, 2018 by jamesdmccaffrey

A neural autoencoder accepts input, compresses it, and then reconstructs the original input. One use of an autoencoder is to denoise image or document data. The idea is that during the compression stage, unnecessary information is discarded. I coded up … Continue reading →

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