In case you missed my free webinar on “Model-Based Machine Learning“,  here is the recording. Apologies for the poor quality of the video. Domino Data Lab’s webinar platform suffered a service degradation while recording the event. The webinar slides may be found below. If you have any questions, please ... [Read more...]

[Read more...]

[Read more...]

In case you missed my talk at the 2016 Data Science Africa Workshop organized by the United Nations Global Pulse Lab, here is the recording. My talk was titled “Sustainable Urban Transport Planning using Big Data from Mobile Phones“. You can download slides for my talk from here. There were also ... [Read more...]

[Read more...]

This blog post was first published on EXEGETIC ANALYTICS‘s blog and kindly re-posted on Data Science Africa. We are planning to host one of the three inaugural satRday conferences in Cape Town during 2017. The R Consortium has committed to funding three of these events: one will be in Hungary, ... [Read more...]

We’ve been working hard on obtaining sponsors for the community and setting up a support structure for knowledge sharing and connecting our members. Our first Johannesburg R User Meetup (on the 8th March) is being sponsored by Microsoft and will be taking place at their Bryanston Campus. Our confirmed ... [Read more...]

In case you missed my free webinar on “Getting Started with Spatial Data Analysis with R“,  here is the recording. You can access the material used for this webinar from Domino Data Lab‘s platform using the following links: The Slides [domino-presentation.pdf] The RMarkdown Script [ReadMe.Rmd] The Whole ... [Read more...]

Some members of the Ugandan media have claimed that counts of registered voters for the 2016 General Election, contain almost 20,000 “ghost voters”.  This is according to their analyses (using excel) of data released by the Uganda Electoral Commission (EC), the body charged with conducting a free and fair election. With voting ... [Read more...]

Introduction to Digital democracy is here. Social media platforms like Facebook and Twitter are providing inexpensive ways for individuals to engage on political issues, therefore providing a wealth of data that provides insight on an underlying trend that spans both geography and demography. Outbox Uganda carried out a sentiment analysis ... [Read more...]

We are glad to announce the launch of datascience-africa.org as a blog that aggregates all the events, news and information impacting the data science community in some of the major cities in Africa. Our community has witnessed the birth and steady growth of several data science meetup groups with ... [Read more...]

[Read more...]

Part I Part II H2O is an open source parallel processing engine for machine learning on Big Data. This prediction engine is designed by, h20, a Mountain View-based startup that has implemented a number of impressive statistical and machine learning algorithms to run on HDFS, S3, SQL and NoSQL. ... [Read more...]

We are glad to announce the launch of DataScience.Vegas as a blog that aggregates all the events, news and information impacting the Las Vegas data science community. Our community has witnessed the birth and steady growth of several data science meetup groups with a very enthusiastic group of devoted ... [Read more...]

Recursive partitioning is a fundamental tool in data mining. It helps us explore the structure of a set of data, while developing easy to visualize decision rules for predicting a categorical (classification tree) or continuous (regression tree) outcome. Classification and regression trees can be generated through the rpart package. The ... [Read more...]

Predictive analytics is the practice of extracting information from existing data sets in order to determine patterns and predict future outcomes and trends. We begun with an overview of prediction methods in R, and then discussed of some case studies of how R is being used for real world problems. ... [Read more...]

ggplot2 is a plotting system for R, based on the grammar of graphics by Hadley Wickham. ggplot2 tries to take the good parts of base and lattice graphics and none of the bad parts. As a contributor to the package, Dr. Dennis Murphy was able to paint a clear picture ... [Read more...]

We were honoured to have a joint event with the Big Data Developer Meetup Group where we were introduced to IBMs BigR package for in-Hadoop Analytics. Mr. Rafeal Coss and Mr. Brandon MacKenzie demonstrated the workings of BigR, the integration of R into Hadoop using IBM BigInsights. You can download ... [Read more...]

dplyr is a package for efficient data manipulation based on the grammar of data manipulation by Hadley Wickham. This package is efficient in manipulating data frames, data tables, databases and more. Dr. Dennis Murphy gave an interactive presentation of the elements that make dplyr the go-to package for data munging ... [Read more...]

In our first meetup, we were introduced to R as a data analysis tool. Dr. Dennis Murphy spent some time telling us about a brief history of R and then went into a brief introduction to using R for data analysis for the beginner. You can find slides for this ... [Read more...]