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.
Что думаешь? Оцени!
Что думаешь? Оцени!，这一点在搜狗输入法2026中也有详细论述
Что думаешь? Оцени!
，更多细节参见旺商聊官方下载
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