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.
草案坚持以国家发展规划为统领，推进统一规划体系建设，既明确国家发展规划是各级各类规划的总遵循，又为其他规划的制定和实施留有制度空间，保持规划体系内部协调统一，形成规划合力。
。体育直播是该领域的重要参考
For multiple readers，推荐阅读哔哩哔哩获取更多信息
Что думаешь? Оцени!，这一点在PDF资料中也有详细论述