Machine Learning Templates with SQL Server 2016 R Services
In these examples, we will demonstrate how to develop and deploy end-to-end advanced analytics solutions with SQL Server 2016 R Services.
Develop models in R IDE. SQL Server 2016 R services allows Data Scientists to develop solutions in an R IDE (such as RStudio, Visual Studio R Tools) with Open Source R or Microsoft R Server, using data residing in SQL Server, and computing done in-database.
Operationalize models in SQL. Once the model development is completed, the model (data processing, feature engineering, training, saved models, and production scoring) can be deployed to SQL Server using T-SQL Stored Procedures, which can be run within SQL environment (such as SQL Server Management Studio) or called by applications to make predictions.
Machine Learning Templates. We have developed a number of templates for solving specific machine learning problems with SQL Server R Services. These templates provides a higher starting point and aims to enable users to quickly build and deploy solutions. Each template includes the following components:
- Predefined data schema applicable to the specific domain
- Domain specific data processing and feature engineering steps
- Preselected *training *algorithms fit to the specific domain
- Domain specific evaluation metrics where applicable
- Prediction (scoring) in production.
The available templates are listed below. Please check back often, as there will be new templates added periodically.
- Predictive Maintenance. Predict machine failures.
- Customer Churn Prediction. Predict when a customer churn happens.
- Online Purchase Fraud Detection. Predict if an online purchase transactions is fraudulent.
- Energy Demand Forecasting. Forecast electricity demand of multiple regions.
- Retail Forecasting Forecast the product sales for a retail store.
- Campaign Management Predict when and how to contact potential customers.
Templates with SQL Server R Services. In these templates, we show the two version of implementations:
- Development Code in R IDE
- Operationalization In SQL
The following is the directory structure for each template:
- Data This contains the provided sample data for each application.
- R This contains the R development code (Microsoft R Server). It runs in R IDE, with computation being done in-database (by setting compute context to SQL Server).
- SQLR This contains the Stored SQL procedures from data processing to model deployment. It runs in SQL environment. A Powershell script is provided to invoke the modeling steps end-to-end.
Performance Turning. This folds provide a few tips on how to improve performance of running R script in SQL Server compute context.
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