Creating a security-enabled AngularJS application with ASP.NET MVC the easy way (tutorial)

In recent years Single Page Applications (SPAs) have become popular and there are plenty JavaScript frameworks which make it relatively easy to develop them. Angular, which is developed Google, seems to be the one with the most momentum. In this post I’ll explain how you can use AngularJS together with ASP.NET to create Angular apps…


Transforming data in a data warehouse through SQL views

This post is an add on to the another post titled Designing an ETL process with SSIS: two approaches to extracting and transforming data where Phill Devey responded with the following question: With regard to your statement " With staging tables, transformations are implemented as database views"  Are you suggesting that your Dimension and Fact…


How to rename data columns in Azure ML programmatically

In Azure ML you usually rename columns using the Metadata Editor component. This works well in common scenarios, but I ran into a situation where this was extremely impractical and I needed a way to rename the columns in bulk. I found the following way to do that: First, add an Execute R Script item…


Azure ML now supports Python scripts

Update 2/19/2015: Microsoft has now officially announced general availability of Azure Machine Learning and the fact that Python is now supported. You can find the announcement here. As I was experimenting with Azure ML, I noticed a module called “Execute Python Script”. I am pretty sure I haven’t seen this before and I also couldn’t…


Setting the threshold of a binary learning model in Azure ML

This is the last of three articles about performance measures and graphs for binary learning models in Azure ML. Binary learning models are models which just predict one of two outcomes: positive or negative. These models are very well suited to drive decisions, such as whether to administer a patient a certain drug or to…


Performance measures in Azure ML: Accuracy, Precision, Recall and F1 Score.

This is the first of three articles about performance measures and graphs for binary learning models in Azure ML. Binary learning models are models which just predict one of two outcomes: positive or negative. These models are very well suited to drive decisions, such as whether to administer a patient a certain drug or to…


Using ROC plots and the AUC measure in Azure ML

This is the second of three articles about performance measures and graphs for binary learning models in Azure ML. Binary learning models are models which just predict one of two outcomes: positive or negative. These models are very well suited to drive decisions, such as whether to administer a patient a certain drug or to…


Troubleshooting “Error 1000: RPackage library exception: Failed to convert RObject to DataSet” when running R scripts in Azure ML

I’ve recently started experimenting with Azure ML and while I find this technology – which currently is still in preview – amazing, it’s also clear that the standard modules don’t natively support a lot of scenarios. Fortunately Azure ML lets you embed R scripts as part of experiments. This way you can overcome most limitations….

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Loading daily gold prices into Azure ML

Technorati Tags: Azure ML Want to load daily gold prices into Azure ML? Here’s one way to do that: Create a new experiment, or open a new one Add a “reader” object onto the canvas Select the Reader object and set the following properties: Data source = Web URL via HTTP URL = https://www.quandl.com/api/v1/datasets/BUNDESBANK/BBK01_WT5511.csv Data…

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