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The main advantage of using PCA for anomaly detection, compared to alternative techniques such as a neural autoencoder, is simplicity -- assuming you have a function that computes eigenvalues and eigenvectors.
10/21/2021
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The Microsoft MVP and LINQ expert discusses the best current C# features, how developers can stay on top of changes, and what they often get wrong about Microsoft's flagship coding language.
10/14/2021
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Here’s a way of thinking about your test plans that will help you decide how you can reduce your testing costs.
10/13/2021
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The longtime Microsoft MVP first defines microservices, then explains the biggest misconception about them, typical benefits and when they're not the answer.
10/04/2021
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Dr. James McCaffrey of Microsoft Research presents a simple technique he has used with good success, previously unpublished and without a standard name.
10/04/2021
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The next version of Microsoft's flagship coding language is coming soon. A Microsoft MVP shares the features to look out for.
09/30/2021
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Eric Vogel provides step-by-step instructions to create an ASP.NET 5 Core web app in Visual Studio 2019 and embed a Power BI report in it.
09/23/2021
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At first thought, computing the similarity/distance between two datasets sounds easy, but in fact the problem is extremely difficult, explains Dr. James McCaffrey of Microsoft Research.
09/20/2021
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Dr. James McCaffrey of Microsoft Research explains stochastic gradient descent (SGD) neural network training, specifically implementing a bio-inspired optimization technique called differential evolution optimization (DEO).
09/07/2021
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Dr. James McCaffrey of Microsoft Research shows how to compute the Wasserstein distance and explains why it is often preferable to alternative distance functions, used to measure the distance between two probability distributions in machine learning projects.
08/16/2021
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Dr. James McCaffrey of Microsoft Research explains how to implement a geometry-inspired optimization technique called spiral dynamics optimization (SDO), an alternative to Calculus-based techniques that may reach their limits with huge neural networks.
08/02/2021
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Dr. James McCaffrey of Microsoft Research uses a full movie review example to explain the natural language processing (NLP) problem of sentiment analysis, used to predict whether some text is positive (class 1) or negative (class 0).
07/06/2021
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Dr. James McCaffrey of Microsoft Research demonstrates applying the L-BFGS optimization algorithm to the ML logistic regression technique for binary classification -- predicting one of two possible discrete values.
06/23/2021
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With advanced IntelliSense/IntelliCode functionality continually being infused into Visual Studio 2019, some developers are using the Quick Actions and Refactorings light bulb to learn new C# coding tricks.
06/15/2021
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Test projects give you a way to exercise your code to see if it works but they're also part of your project's "permanent record." If all you want to do is try something out with some throwaway code, C# Scripting in Visual Studio might be a better choice.
06/14/2021
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SQL Server's OpenJson function will let you dismantle JSON structures into relational tables, including tables with foreign/primary key relationships.
06/04/2021
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Dr. James McCaffrey of Microsoft Research explains a generative adversarial network, a deep neural system that can be used to generate synthetic data for machine learning scenarios, such as generating synthetic males for a dataset that has many females but few males.
06/02/2021
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Here's how you can use SQL Server's OpenJson function to dismantle JSON structures into relational tables targeting either transactional systems or data warehouses.
06/01/2021
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Dr. James McCaffrey of Microsoft Research provides a code-driven tutorial on PUL problems, which often occur with security or medical data in cases like training a machine learning model to predict if a hospital patient has a disease or not.
05/21/2021
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Testing can be problematic for devs who just want to code and leave the testing to specialists, but many have to DIY. These tools help with that.
05/07/2021
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Generating synthetic data is useful when you have imbalanced training data for a particular class, for example, generating synthetic females in a dataset of employees that has many males but few females.
05/07/2021
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C# 9 gives you a better way to create value objects and some simpler code to use while doing it. But even if you don't care about value objects, the new keyword has some cool changes.
05/03/2021
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Dr. James McCaffrey of Microsoft Research provides full code and step-by-step examples of anomaly detection, used to find items in a dataset that are different from the majority for tasks like detecting credit card fraud.
04/13/2021
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You're missing out on some cool features if you're building applications in .NET Core 3 and not exploiting the new features in C# 8. Here's what Peter thinks are the ones you'll find most useful.
04/07/2021
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When training data won't fit into machine memory, a streaming data loader using an internal memory buffer can help. Dr. James McCaffrey of Microsoft Research shows how.
04/01/2021