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Lablog

a dash of code, a pinch of science

Interactive Bandits

Code, Contextual, Lablog, R, Research, Statistics • March 2, 2019 • Robin van Emden

To help students get a better feel for three of the most popular “multi-armed bandit” exploration/exploitation balancing strategies (Epsilon Greedy, Thompson Sampling, and Upper Confidence Bound), I combined my R package “contextual” with the versatile …

StreamingBandit; Experimenting with Bandit Policies

Code, Contextual, Lablog, Python • September 9, 2018 • Robin van Emden

A paper I have been coauthoring and co-developing with Jules Kruijswijk, Petri Parvinen and Maurits Kaptein has just been accepted at the Journal of Statistical Software. The paper, “StreamingBandit: Experimenting with Bandit Policies” describes one of …

Algorithmic Art: The Bubble

Art, Code, Javascript, Lablog, Minds, online, R, Statistics • August 23, 2018 • Robin van Emden

The Bubble, an algorithmic artwork I have been working on with the artist and photographer Johan Nieuwenhuize, was unveiled today during the opening of the academic year at the The Hague University of Applied Sciences. …

Music as Medicine: Sync

E-health, Psychology, R, Research, Statistics • June 29, 2018 • Robin van Emden

Above, a video visualizing two of our participants’ ECG responding to music in real-time. Yellow and green lines represent their ECG’s, red the level of synchrony between them. The audio is a live recording of …

Shrinkage in Contextual Bandits with Dependent Observations

Code, Contextual, Lablog, Multi Armed Bandits, R, Research, Statistics • April 1, 2018 • Robin van Emden

Jules Kruijswijk (first author), Maurits Kaptein and Florian Böing-Messing and I have recently been working on a paper on the application of partial pooling (or shrinkage) models in (contextual) multi-armed bandit problems: The (contextual) multi-armed …

R Development Presentation

Code, Contextual, R • March 29, 2018 • Robin van Emden

Slides from my recent presentation at the biweekly “Computational Personalisation” lab meeting – an outline of R Package Development, based on my experience in developing the R package “Contextual“. How to create an R package …

StreamingBandit UI

Code, Contextual, ES6, Javascript, Lablog, React, Research, Statistics • February 23, 2018 • Robin van Emden

Recently, I have completed a Javascript (ES6, React, and Material Design) admin application for “StreamingBandit”, a Python server that helps setting up and running online streaming (contextual) bandit experiments. This management front-end makes it very easy …

Inauguration Maurits Kaptein

Contextual, Personalized medicine, Presentation, Psychology, Research, Statistics, Technology • January 14, 2018 • Robin van Emden

Friday January 12th, Maurits Kaptein, promoter, friend and founder of the JADS “Computational Personalisation” lab, was inaugurated as Professor (by special appointment ) Data Science & Health at the JADS and Tilburg University. You can find …

The Picasso Experiment

Art, Javascript, Lablog, live, online, Python, R, Research • November 1, 2017 • Robin van Emden

With a team consisting of Ettore Majorana, Andrea Giansanti, Davide Iannuzzi and Maurits Kaptein, we are currently investigating how people perceive beauty, complexity, and symmetry in paintings. To get a better feel for the subject, …

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