Off the back of the popular Machine Learning hands on session at Skills Matter last month where we created a digit recognizer, last night we tackled a new dataset. Again we took a task from Kaggle’s online predictive modelling competitions. This time the data set was passenger details from the Titanic, with the task to analyse who was likely to survive. Machine learning from disaster from ptrelford Guided Task: http://trelford.com/titanic.zip (unblock the file, unzip to C:\titanic, load in VS2012 an[...]

Last weekend I teamed up with other gamers for the Creative Assembly game jam at Rezzed. We had 9 hours to create a game, and were given the theme of the 80s at 9am on the Saturday morning. After some brainstorming we came up with the idea of a platform game that became an endless runner with rhythm and puzzles called We Jammin’: The main character is a skateboarder, collecting 80s artefacts to build up the volume on each track, while hitting mental blocks depletes the volume. All 4 tracks must reach t[...]

Scott Wlaschin has just posted a really interesting series on Dependency cycles over on the F# for fun and profit site. The last post shows cycles and modularity in the wild comparing open source C# and F# projects including SpecFlow and TickSpec which have almost identical functionality,. Here’s the dependency diagram for SpecFlow (C#):   and for TickSpec (F#): They both have very similar functionality and in fact TickSpec implements it’s own parser too. Read Scott’s article to better understand w[...]

Last night the F#unctional Londoners Meetup put on a Hands On Machine Learning session at Skills Matter in London. It was a really well attended event, so much so that we had to put a cap on the number of attendees when we reached 70 registrations. The material was recycled from a well received session by Mathias Brandewinder at the San Francisco Bay Area F# User Group in May. I find F# a very good fit for Machine Learning, in fact my first use of F# was for the player matchmaking on Halo 3. The goal of[...]

This week I added a simple tremolo effect to my mini-keyboard project Monokeys. Tremolo is a trembling effect, and sometimes seen in Low Frequency Oscillators. I found an example of Coding some Tremolo and wrote the formula as an F# function: let tremolo freq depth i = (1.0 - depth) + depth * (sineWave freq i) ** 2.0 Then I added sliders for the frequency and depth to compose the shape of a sound: let tremolo i = tremolo tremoloFreq.Value tremoloD[...]