Public space

In February 2018, police in China began using connected sunglasses equipped with facial recognition to scan crowds looking for suspected criminals. In a test at a busy train station in the city of Zhengzhou, police were able to identify and apprehend seven suspects accused of crimes ranging from hit

In November 2017, San Francisco-based Strava, maker of a GPS-enabled fitness app, published a heat map showing the activity of all its 27 million users around the world. Upon outside examination, the data visualisation, which was built from 1 billion activities and 3 trillion data points covering 27

In 2014, the UK suicide prevention group The Samaritans launched Radar, a Twitter-based service intended to leverage the social graph to identify people showing signs of suicidal intent on social media and alert their friends to reach out to offer them help. The app was quickly taken offline after

A report for the US National Academy of Sciences explains the methods used by a team of computer scientists to derive accurate, neighbourhood-level estimates of the racial, economic, and political characteristics of 200 US cities using the images collected by Google Street View in 2013 and 2014. The

Sidewalk Labs, a subsidiary of Alphabet (Google's owner), has signed a deal with the Canadian city of Toronto to redevelop the brownfield Quayside waterfront district and turn it into a technology hub. The deal raises three sets of issues. First (The Guardian) is the essential privatisation of

Using anonymised data GPS data from mobile devices, primarily smart phones, SafeGraph concluded that the crowds attending the US presidential inauguration in January 2016 make significantly less money than attendees of the Women's March two months later. The income level estimates were made possible

In 2016 reports surfaced that bricks-and-mortar retailers were beginning to adopt physical-world analogues to the tracking techniques long used by their online counterparts. In a report, Computer Sciences Corporation claimed that about 30% of retailers were tracking customers in-store via facial

In a presentation given at the Knowledge Discovery and Data Mining conference in 2016, researchers discussed a method of using the data generated by smart card public transport tickets to catch pickpockets. In a study of 6 million passenger movements in Beijing, the researchers used a classifier to

The Satellite Sentinel Project, a constellation of high-powered satellites trained to find atrocities on the ground with a half-metre resolution, was set up in 2009 to find human rights abuses in the conflict in Sudan. Conceived by former Clinton administration State department staffer John

As part of its Smart Nation programme, in 2016 Singapore launched the most extensive collection of data on everyday living ever attempted in a city. The programme involved deploying myriad sensors and cameras across the city-state to comprehensively monitor people, places, and things, including all

In 2015, the Royal Parks conducted a covert study of visitors to London's Hyde Park using anonymised mobile phone signals provided by the network operator EE to analyse footfall. During the study, which was conducted via government-funded Future Cities Catapult, the Royal Parks also had access to

The Japanese electronics giant NEC introduced one of its facial recognition systems for the first time in a sports arena in Colombia. The soccer stadium in Medellin has a capacity of 45,000 people and occasionally suffers from hooligans. The operator of the arena takes photos of such hooligans when

In 2016 Jonathan Evans, the former head of Britain's MI5 warned that private firms are analysing "open source" - that is, publicly posted - information to create profiles that are just as intrusive as anything Britain's intelligence agencies deploy and that the gap is closing between open

In early 2016 Libreville, the capital of Gabon, signed up for Microsoft's CityNext programme, which is intended to supply innovative "smart city" solutions in eight key areas: health, social services, infrastructure, water, electricity, justice, culture, and education. Applications in each area will

At the 2016 Usenix conference, MIT's Computer Science and Artificial Intelligence Laboratory (CSAIL) presented a system called Chronos that could use wifi signals to detect the position of a person or object inside a room to within tens of centimetres. MIT claimed Chronos was 20 times more accurate

In 2016, 21-year-old Russian photographer Egor Tsvetkov launched the "Your Face is Big Data" project. He created the project by semi-secretly photographing passengers seated across from him on the St. Petersburg metro, then uploading the images to an online service called FindFace. FindFace's