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Jonathan Wood

    Blog Oct 31, 2018

    Microsoft Custom Vision: Retrain Model in C#

    In the previous post, we went over how to use the Custom Vision Training and Prediction SDKs to programmatically predict image URLs and image files. In this post, we’re going to use those same SDKs to show how to programmatically...

    Blog Oct 01, 2018

    Microsoft Custom Vision: Creating an Image Classification Model

    Creating a model to classify images would usually involve creating your own deep learning model from scratch. This includes having a very large and diverse set of training images with a portion of them set aside as a test set,...

    Blog Sep 19, 2018

    Microsoft Custom Vision: Predict Images with C#

    In the previous post, we showed how to train an image classification model using the Microsoft Custom Vision service as well as to perform a quick test on a new image. However, what if you want to integrate this model...

    Blog Aug 18, 2018

    Evaluate Your Models with Cross Validation in ML.NET

    Let’s say you’ve been working on a machine learning model and your initial evaluation on test data looks good but is that the same kind of performance you’ll get once you deploy your model to take on actual data it...

    Blog Aug 01, 2018

    Save and Read Models in ML.NET

    Often times you’ll be iterating on your model to try to get it to perform well with new data, so you’ll be training on it for each of those iterations. However, once you feel like you have a model that...

    Blog Jul 11, 2018

    Machine Learning with C#: An Introduction to ML.NET

    When you think of data science and machine learning two programming languages are going to instantly pop into your mind: Python and R. These two languages are great and I love working with them, but coming from a .NET and...

    Blog Jul 06, 2018

    Beginning R Programming for Data Science: Language Basics

    If you’ve done even a short amount of research into data science, there is no doubt you’ve come across the Python vs. R debate. While we won’t get into which is better, there is nothing wrong with knowing both. You...

    Blog May 08, 2018

    Get Insights From Video with Microsoft Video Indexer

    You have to admit, Microsoft Cognitive Services has a lot of really nice offerings to bring to your applications. One of the newer ones is the Video Indexer. This a powerful service since when you upload your videos it analyzes...

    Blog Apr 25, 2018

    An Overview of Azure Databricks

    With the announcement of the general availability of Azure Databricks, in this post we’ll take this opportunity to get a brief feel to what Azure Databricks is and what it can do. What is Databricks? Databricks is a data solution...

    Blog Apr 20, 2018

    Integrating Microsoft LUIS into the Bot Framework

    In our previous post, we went over what Microsoft’s LUIS, or Language Understanding, is and showed how to create a new LUIS app as well as calling it using the APIs. In this post we will use the same LUIS...

    Blog Apr 10, 2018

    Using the Cognitive Services Text Analytics API: Sentiment Analysis

    In our previous post, we feed Twitter data to the Text Analytics API which was able to detect the language of each tweet. We will expand upon our previous work and continue to use the API and our Twitter data...

    Blog Apr 06, 2018

    Building Language Intelligent Apps with Microsoft’s LUIS

    To aid in building applications that have better natural language understanding, Microsoft came out with LUIS or Language Understanding Intelligent Services. LUIS can be used for understanding speech for the Bot Framework, Bing Speech, or even with Cortana. In this...

    Blog Apr 03, 2018

    Pre-processing Text Data with NLTK and Azure Machine Learning

    Data comes in all forms. Lately, we’ve been going over mostly numerical and categorical data. Even though the categorical data contains words, we transform it into numerical data for our algorithms. However, what if your data is only words? That’s...

    Blog Mar 30, 2018

    Using the Cognitive Services Text Analytics API: Detecting Languages

    Microsoft has a lot of fascinating APIs available to build intelligent applications with using their Cognitive Services. Among those services is the Text Analytics API. This API offers a wide range of valuable text-based functionality such as sentiment analysis and...

    Blog Mar 06, 2018

    Beginning Statistics for Data Science: Analyzing Data

    In our last post we discussed different types your data can have. Now let’s focus on how to analyze on those types of data. Python code will be used to demonstrate a few of these concepts. To get things start...

    Blog Feb 03, 2018

    Getting Quick Insights on Sales Data with PowerBI

    To finish off getting insights from a sales data set, we’re going to look at using Microsoft’s PowerBI. PowerBI is a very helpful tool for looking at our data through visualizations. The insights will be the same that we got...

    Blog Jan 18, 2018

    Beginning Statistics for Data Science: Types of Data

    Statistics is becoming a must learn topic for anyone looking to get into data science. Look at any data scientist job posting, and you will be hard-pressed to find a listing that does not mention a degree in statistics, mathematics,...

    Blog Nov 29, 2017

    Creating Web Apps for Your Machine Learning Models with Dash

    In the last post, we created APIs for our machine learning models so they could be deployed and clients could invoke them. However, what if you just wanted a simple web page that included interactive and attractive graphs? That’s where...

    Blog Nov 09, 2017

    Creating a Machine Learning Web API with Flask

    In our previous post, we went over how to create a simple linear regression model with scikit-learn and how to use it to make predictions. But, that’s not very useful for anyone other than the creator of the model since...

    Blog Oct 25, 2017

    Creating a Simple Linear Regression Machine Learning Model with scikit-learn

    In this post, we’ll look at what linear regression is and how to create a simple linear regression machine learning model in scikit-learn. If you want to jump straight to the code, the Jupyter notebook is on GitHub. What is Linear...

    Blog Oct 14, 2017

    Top Free Data Science Books

    There are probably thousands upon thousands of tutorials, articles, videos, and blog posts on all things data science on the internet now. Yet I’m still a big fan of books. Throughout history books have given wisdom, advice, and knowledge to...

    Blog Sep 13, 2017

    Visualizing Sales Data in Python with Matplotlib

    In our last post we interpreted a data set with pandas to gain some insights from it. In this post, we will do the same, but instead of interpreting the raw data we will use visualizations to help us determine...

    Blog Aug 29, 2017

    Using Pandas to Analyze Sales Data

    Now that we know how the data science process works, let’s leverage some of it and try to find insights into some data. We’ll be using pandas, a popular data analysis package for Python, to load and work with our...

    Blog Aug 22, 2017

    Data Science and the Data Science Process

    Before we get into the fun part of working with data, let’s break down how data science involves more than just statistics, why it’s becoming more important, and the data science process. Data Science vs. Statistics In short, data science...

    Blog Jun 16, 2017

    Data Science with R in Visual Studio

    Like our previous post on Python, we will walk through all the really nice offerings Visual Studio gives us now when working with R and related tools. Since we looked at installing in the previous post, and the steps are...

    Blog Jun 13, 2017

    Data Science with Python in Visual Studio

    Yep, you read that right. Visual Studio isn't the first thing you think of when you hear "data science", but that may just change soon. In Visual Studio 2017 they have included several tools together where you can do Python, R,...

    Blog Jan 06, 2017

    Running Spectron Tests in Visual Studio Team Services Build

    Having end-to-end tests and running them locally can definitely be beneficial, but one of the main reasons to have them is to run them automatically during a nightly build. Getting these tests to run in Visual Studio Team Services isn’t...

    Blog Jan 04, 2017

    Unexpected Benefits of End-to-end Testing

    End-to-end Testing Testing where the entire application is tested in a real-world scenario such as communicating with the database, network, hardware and other applications. The above is the general definition of what an end-to-end test is. Most of these tests...

    Blog Dec 27, 2016

    Top NPM Packages for Spectron Testing

    Spectron is a great tool for testing your Electron applications. However, some help is needed to get the full use out of it. This post will go through all of the npm packages I’ve found useful in my Spectron testing....

    Blog Dec 21, 2016

    Introducing the Spectron Command Line Tool

    After some Spectron experience there tends to be some things that can get repetitive when creating Spectron tests. I figured creating a tool to do just that would be handy to have. So I created the spectron-cli npm package. Granted, this...

    Blog Nov 22, 2016

    Spectron Tip: Getting Selectors From Chrome Dev Tools

    If you’re using Spectron (or even Protractor) for automating your applications probably the most time consuming thing is to figure out exactly what selectors you need in order to interact with your application. Whether to click on a button or...

    Blog Oct 12, 2016

    Creating Page Files for Spectron Tests

    Now that we've got Spectron working, let's add some more to it to help with our testing. One way of doing end-to-end testing is to have a separate file that contains our page objects and any helper functions specific to...

    Blog Oct 05, 2016

    End-to-end Testing Electron Apps with Spectron

    You've built a really awesome Electron application, but you want to include a few automated tests to make sure a regression doesn't occur? Spectron is here to help! Spectron is Electron's end-to-end testing library. Let's see how it we can set...

    Blog Jun 02, 2016

    Using XAML in F# Xamarin Forms – A Screencast

    Now that we’ve seen the awesome new stuff in Xamarin Studio for F# let’s go a bit further and actually use some of those improvements to our advantage. However, instead of just a regular blog post, I thought it’d be...

    Blog May 09, 2016

    F# Improvements in Xamarin Studio

    With the (almost) stable release of Xamarin Studio 6 comes a ton of great new improvements. I absolutely love the new dark theme! However, some huge improvements were made to the IDE for F# support, as well. Improvements that I...

    Blog Dec 08, 2015

    A Quick Look at F# In Visual Studio Code

    It’s F# Advent time again! This is a yearly event the F# community comes together for the month of December and each person releases an F# related post on a day of their choosing. Today is that day for me...

    Blog Nov 07, 2015

    First Impressions of the Xamarin Inspector

    One of the pain points of using Xamarin Forms is that, just to see updates of any UI updates via XAML, you still need to save your changes, recompile, and relaunch the application. What’s more, is that you’d have to...

    Blog Nov 05, 2015

    Automating Xamarin Builds with FAKE – Part 3: Building and Running Unit Tests

    While this will be a short post it’s also one that may be one of the most important ones to go over - running unit tests. Most of you probably know that being able to run tests early and often...

    Blog Oct 13, 2015

    Safeguard your data from loss with a proper storage strategy.

    Automating Xamarin Builds with FAKE – Part 2: Building PCL, iOS, and Android Projects

    Continuing from part 1 of this series we now have FAKE setup and ready for us to use our automated building needs. Now let’s build our Xamarin Forms application. In here we’ll go through how much FAKE helps us out...

    Blog Sep 24, 2015

    Meet industry compliance and avoid potential penalties.

    Automating Xamarin Builds with FAKE – Part 1: Introduction and Setup

    Being a .NET developer, I’m sure one of your pain points throughout the development process in any project has been trying to setup automated building, testing, and even deploying. However, build tools have been evolving much like other development tools...

    Blog Sep 09, 2015

    Implementing Sharing in Xamarin Forms

    MSPmentor Senior Content Director T.C. Doyle interview with Atmosera CEO, Jon Thomsen.

    Blog Aug 14, 2015

    Unit Testing Your Xamarin Forms Applications with F# and FsUnit

    One of the best and easiest ways to use F# in your projects is to use it for unit testing and the same can be said for your mobile applications with Xamarin. While C# has FluentAssertions as well as Should...

    Blog Jul 27, 2015

    Run your apps in the environment best suited for their requirements.

    Exciting New Things in F# 4.0

    With the latest news of the release of Visual Studio 2015 some folks may not have realized but included in it is the newest release of F# 4.0. The .NET Blog has also officially announced the RTM. The most exciting...

    Blog Jul 21, 2015

    My First CodeStock Experience

    I’ve gone to few conferences lately since starting my software development career. I plan on going to several more as I find them throughout the year. Just recently, I decided to checkout CodeStock. Why go all the way to Knoxville,...

    Blog May 14, 2015

    Deliver apps at velocity using a DevOps Pipeline Platform.

    Combining F# and Xamarin Forms to Create Mobile Applications

    While we certainly have been busy getting our hands dirty with Xamarin I’ve been doing some of my own. However, I’ve been messing around with using Xamarin with F#. I mentioned in a previous post that F# can be used...

    Blog May 05, 2015

    Using F# for Enterprise Applications

    Though I have posted a few times on some of the awesome things F# can do for your code, that doesn’t necessarily mean it’s always good choice for each of your applications. You may look at the code features and...

    Blog Mar 12, 2015

    Access Data Easier with F# Type Providers

    One of the most interesting things about F# is their type providers. Don Syme, just a couple of years ago, did a post giving examples of using 12 type providers that is still quite relevant. Just taking a look at...

    Blog Feb 11, 2015

    Implementing Interfaces in F# Using Object Expressions

    To expand on another topic that was mentioned in the F# Infographic is that F# also has the ability to use any .NET library. From that, you may be wondering, “what about implementing interfaces that may come in other libraries?”...

    Blog Dec 31, 2014

    Less Defects with F# Units of Measure

    One of the most powerful things that F# has is its ability to create custom units of measure. F# allows you to set an explicit type to a unit. That’s right…you will get compile time checking on any of the...

    Blog Dec 04, 2014

    My Introduction To Data Science With F#

    You may have seen a big boom lately with web technologies, especially with all of the JavaScript frameworks coming out at a pace of around one a week. But there is another boom you may have heard about…data science. Now...

    Blog Nov 10, 2014

    Using the F# Interactive

    Another item that was on the F# Infographic was the use of the F# Interactive or also called the FSI. The interactive window is basically a REPL for F#. A few languages have these of their own, including Python and...

    Blog Oct 31, 2014

    F# Community Projects

    Many of you may have certainly heard about F#, and as you may have seen from the previous F# Infographic, it definitely has one awesome community. I'd like to expand a bit on the community to highlight what they have...

    Blog May 06, 2014

    JavaScript Garbage Collector Presentation

    I was lucky enough to be able to give my first technical presentation at the Carolina Code Camp, and it was definitely a great experience. When thinking of a topic for this event, I felt it would be best to learn...

    Blog Jan 22, 2014

    Build Greatness, Define a Category!

    Head First Design Patterns – Part 1: Observer Pattern

    My thoughts on patterns I'll be honest with you...I never did like design patterns. I never got on board with it and, instead, just coded away like I thought I was supposed to do. Now, I realize they're a bit...

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