Big Data

Can social media data give useful real-time information during the progress of natural disasters? A group of academics thinks it could.

Researchers from Warwick University in the UK looked at pictures uploaded to Flickr during the lead-up and aftermath of Hurricane Sandy. As the two graphs below show, there was a strong correlation between the number of pictures taken and atmospheric pressure.

 Read more

The rise in US food prices accelerated in September and has continued into October, according to a detailed study of retail prices – though the US federal government shutdown has robbed financial markets of any official measures of the state of the economy.

These unofficial inflation figures, from a US start-up called Premise, highlight the growing use of massive data collection and analysis – known as “big data” – to supplement and in some cases replace official economic statistics.

 Read more