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The Data Science Lab

How to Create a Machine Learning Decision Tree Classifier Using C#

After earlier explaining how to compute disorder and split data in his exploration of machine learning decision tree classifiers, resident data scientist Dr. James McCaffrey of Microsoft Research now shows how to use the splitting and disorder code to create a working decision tree classifier. 01/22/2020
News

Microsoft: Move from Traditional ASP.NET to 'Core' Requires 'Heavy Lifting'

There are plenty of reasons to move traditional ASP.NET web apps -- part of the old .NET Framework -- to the new cross-platform direction, ASP.NET Core, but beware it will require some "heavy lifting," Microsoft says. 01/22/2020
The Data Science Lab

How to Compute Disorder for Machine Learning Decision Trees Using C#

Using a decision tree classifier from a machine learning library is often awkward because it usually must be customized and library decision trees have many complex supporting functions, says resident data scientist Dr. James McCaffrey, so when he needs a decision tree classifier, he always creates one from scratch. Here's how. 01/21/2020
News

Blazor's Future: gRPC Is Key

Blazor guru Steve Sanderson detailed what Microsoft is thinking about the future of the revolutionary project that enables .NET-based web development using C# instead of JavaScript, explaining how gRPC is key, along with a new way of testing and a scheme for installable desktop apps. 01/21/2020
Practical .NET

Don't Do It All Yourself: Exploiting gRPC Well Known Types in .NET Core

If you're creating business services that send dates and decimal data then you may be concerned that gRPC services don't support the relevant data types. Don't Panic! There are solutions. Here's how to use them. 01/17/2020
News

Microsoft Points Blazor to Native Mobile Apps

Blazor, the red-hot Microsoft project that lets .NET developers use C# for web development instead of JavaScript, is now being pointed toward the mobile realm, targeting native iOS and Android apps. 01/16/2020
Practical .NET

Implementing State in .NET Core gRPC Messages with oneof

In the real world, you've been dealing with the State pattern every time you designed a set of database tables. The Protocol Buffers specification lets you do the same thing when you define the messages you send and receive from your gRPC Web Service. 01/14/2020
News

C#, .NET and SQL Server Make List of Top In-Demand Programming Skills

Microsoft-centric technologies are featured prominently in a new examination of the top in-demand programming skills published by careers site Dice.com. 01/14/2020
News

New Visual Studio 2019 for Mac v8.4 Does ASP.NET Core Blazor Server Applications

Microsoft shipped Visual Studio 2019 for Mac version 8.4, adding support for creating ASP.NET Core Blazor Server applications, part of the company's red-hot Blazor project to enable Web development with C# instead of JavaScript. 01/12/2020
Practical .NET

Reusing and Recycling Data Structures in gRPC Services in .NET Core

Here's everything you need to know to create a standard set of reusable message formats to use with your gRPC services. 01/10/2020
News

What's New for Java Developers in Visual Studio Code

Microsoft touted the introduction of long-awaited "Call Hierarchy" support and some UI updates in the year's first update to Java functionality in the Visual Studio Code editor. 01/09/2020
Practical .NET

.NET Core: Writing Really Obvious Code with Enumerated Values in gRPC Web Services

Peter's pretty fanatical about replacing documentation/comments with readable code. So he's very excited about using enums when defining gRPC services. Very. Excited. But there are some best practices and "things to be aware of" when using this feature. 01/08/2020