One challenge is having enough training data. Another is that the training data needs to be free of contamination. For a model trained up till 1900, there needs to be no information from after 1900 that leaks into the data. Some metadata might have that kind of leakage. While it’s not possible to have zero leakage - there’s a shadow of the future on past data because what we store is a function of what we care about - it’s possible to have a very low level of leakage, sufficient for this to be interesting.
"The work-life balance was at the heart of it," adds de Wit, who disagrees with the suggestion that their staff are now doing less work for the same amount of money. Instead he puts it down to "working smarter not harder".
，详情可参考同城约会
Conservator Jonathan Carr said the Thetford find was made "from extremely thin sheets of metal which have become extremely brittle after 2,000 years in the ground".
The decomposition of her body indicated that she had already been "deceased for several weeks", investigators have said.