Sergei Dumnov

Sergei is a data scientist at Qrious, an Auckland (NZ) based big data analytics company, where he responsible for data wrangling, analysing it and building analytical applications using variety of tools (Greenplum DB, R, PostGIS, QGIS and Tableau). He received his PhD from the Institute of Hydrodymics (Russian Academy of Sciences) developing mathematical models of water flow and transport phenomena in water bodies.

27 January 2016
27 January 2016

Using R Machine Learning Script as a Power BI Desktop Data Source

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You can develop a Power BI Dashboard that uses an R machine learning script as its data source and custom visuals. Here is a simple example that shows how to connect to data sources over the Internet, cleanse, transform and enrich the data through the use analytical datasets returned by the R script, design the dashboard and finally share it.… Read more
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21 October 2013
21 October 2013

Creating a Business Intelligence Dashboard with R and ASP.NET MVC: Part 3

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By introducing R libraries into an ASP.NET MVC application, it is possible to broaden its analytical and visualization power immensely. To illustrate this, Sergei shows an example of how to use the R libraries Lattice and GoogleVis to detect poorly-performing product categories, the quantity sold and the profit from them, and estimate their demand over time.… Read more
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