1186 search results for "maps"

The Topology Underlying the Brand Logo Naming Game: Unidimensional or Local Neighborhoods?

December 4, 2015
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The Topology Underlying the Brand Logo Naming Game: Unidimensional or Local Neighborhoods?

You can find the app on iTunes and Google Play. It's a game of trivial pursuits - here's the logo, now tell me the brand. Each item is scored as right or wrong, and the players must take it all very seriously for there is a Facebook page with cheat she...

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What can global temperature data tell us?

December 3, 2015
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What can global temperature data tell us?

Debates about anthropogenic climate change often centre around data on changes in global temperatures over the last few decades. There are good scientific reasons to look at this data, but it also plays a prominent role in political advocacy, sometimes fairly, sometimes not so fairly. This is the first in a series of posts in

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Feature Selection with caret’s Genetic Algorithm Option

December 3, 2015
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Feature Selection with caret’s Genetic Algorithm Option

by Joseph Rickert If there is anything that experienced machine learning practitioners are likely to agree on, it would be the importance of careful and thoughtful feature engineering. The judicious selection of which predictor variables to include in a model often has a more beneficial effect on overall classifier performance than the choice of the classification algorithm itself. This...

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Next Kölner R User Meeting: Friday, 4 December 2015

December 3, 2015
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Next Kölner R User Meeting: Friday, 4 December 2015

The 16th Cologne R user group meeting is scheduled for this Friday, 4 December 2015 and we have great line up with three talks followed by networking drinks. Monitoring process change using Bayesian methods (Mick Cooney)A common business problem is to evaluate the effect of a change of process, and this talk...

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Reflections from the Big Data Week Conference Part 1 – Data: The Bigger the Better?

November 27, 2015
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Reflections from the Big Data Week Conference Part 1 – Data: The Bigger the Better?

By Hannah Evans Big Data Week London 2015: a festival of social data around the globe. Fantastically organised and executed by all, the event brings together 400 speakers in 40 different global cities to provide a series of workshops, training, … Continue reading →

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Three Fun Facts About Black Friday and Thanksgiving

November 24, 2015
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Three Fun Facts About Black Friday and Thanksgiving

Thanksgiving has been a national holiday in the United States since 1941 and Canada since 1957. Black Friday, while not an official holiday, marks the unofficial of the holiday shopping season. These three graphs show the increasing price of a pound of...

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Making an R based ML model accessible through a simple API

November 24, 2015
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Building an accurate machine learning (ML) model is a feat on its own. But once you’re there, you still need to find a way to make the model accessible to users. If you want to create a GUI for it, the obvious approach is going after shiny. However, often you don’t want a direct GUI for a ML...

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Geographic clustering of UK cities

November 23, 2015
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Geographic clustering of UK cities

I know I am probably late to this party but I recently found out about DBSCAN or "A Density-Based Algorithm for Discovering Clusters in Large Spatial Databases with Noise". In a nutshell, the algorithm visits successive data point and asks whether neighbouring points are density-reachable. In other words is it possible to connect two points with a chain of...

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Reverse Geocode using Google API and XML package in R – PART 3

November 18, 2015
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Reverse Geocode using Google API and XML package in R – PART 3

So this is it !!! In the current tutorial I will show you my entire code that i used to grab the data from web as well as learn to parse the XML data. This tutorial will be a bit longer but since you have already come to this point lets just get done w...

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Analyzing 1.1 Billion NYC Taxi and Uber Trips, with a Vengeance

November 17, 2015
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Analyzing 1.1 Billion NYC Taxi and Uber Trips, with a Vengeance

The New York City Taxi & Limousine Commission has released a staggeringly detailed historical dataset covering over 1.1 billion individual taxi trips in the city from January 2009 through June 2015. Taken as a whole, the detailed trip-level data is more than just a vast list of taxi pickup and drop off coordinates: it’s a story of New York....

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