Category Tech

Selection bias and the perils of data science

According to the Guardian Data Blog, Obama is heading for electoral success, on the basis of a Twitter-based analysis. It’s all very nice to see mapped out, and the use of geocoding is cool (though possibly flawed), but underlying the approach is a massive potential for selection bias. The problem is quite simply this: if […]

Is Raspberry Pi(e) good for health?

The much awaited Raspberry Pi computer finally went on sale earlier this year. In case you’ve not been keeping up with all things tech, the Raspberry Pi is as small as a credit card and priced at a mere £21.60 for the B model. Yes, a functioning computer that costs less than an external hard […]