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.
Капитан рассказал о долетающих до Европы ракетах ИранаЭксперт Сивков: Баллистические ракеты Ирана могут долететь до Европы
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綜合問卷及官員說法，政府出面回購業權屬被視為時間安排最快的選項，業主在交易完成後即收取現金。問卷引用香港測量師學會根據屋苑火災前的巿場成交價估算，未補及已補地價單位的平均實用呎價分別為約6000元及8000元。
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