Volunteers teach AI to spot slavery sites from satellite images

Online volunteers are helping to track slavery from space. A new crowdsourcing project aims to identify South Asian brick kilns – frequently the site of forced labour – in satellite images. This data will then be used to train machine learning algorithms to automatically recognise brick kilns in satellite imagery. If computers can pinpoint the location of possible slavery sites, then the coordinates could be passed to local non-governmental organisations to investigate, says Kevin Bales, who is leading the project at the University of Nottingham in the UK. South Asian brick kilns are notorious sites of modern-day slavery.