内容摘要：The algorithms are trained on many thousands of tagged previous scans, and it is important the training data includes scans from a wide swathe of ethnic groups if the technology is going to be deployed on a diverse range of people, stress the experts.

The algorithms are trained on many thousands of tagged previous scans, and it is important the training data includes scans from a wide swathe of ethnic groups if the technology is going to be deployed on a diverse range of people, stress the experts.

The artificial bank replicates the sand and gravel quarries where the birds usually build their nests.as having dark brown upper parts and pale under parts divided by a distinctive dark chest stripe.

They are agile fliers and often perch on overhead wires or branches.The number of the birds in Europe has dropped dramatically during the last 50 years as a result of droughts in their African wintering grounds.They build nests by using their legs to create tunnels in river banks and sand or gravel quarries.

The artificial sand bank at Daventry Country Park has ready-made holes to attract the birds.It was created by rangers and volunteers working with a local contractor.

West Northamptonshire Council, which runs the park, said: "The new Sand Martin bank at Daventry Country Park has been created to provide a safe nesting habitat for these migratory birds known for their distinctive burrowing nests.

"We'd like to say a big thank you to everyone involved in the project, including our Park Ranger Alan Malin, contractor Jim Birch and DHL, who donated funding and volunteers."The mother of a terminally ill 11-year-old has spoken of her heartbreak at knowing her daughter may not live past her teens.

Anna Lowri Roberts, from Sarn Mellteyrn, in Gwynedd, was diagnosed withThe illness is a fatal neurological disorder that usually begins in childhood.

The strain Anna has affects just two people in Wales and 39 in the UK, according to the Batten Disease Family Association.With a key symptom being childhood dementia Anna's life expectancy is expected to be limited to her late teens or early twenties.