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分享一篇很有趣的 文章。用梯度提升的方法来改进 ARIMA,AutoARIMA 先拿到起始参数,Boosting 过程和普通 GBM 一样都是用残差代替梯度计算。角度倒是听新颖的, 就是听着可能速度有点慢,而且不能确定序列角度来说 Boosting 是否真的有意义,作者在 Kaggle 去年的 M4 上做了些实验,看着还行,有点意思。轮子在这里:https://github.com/tblume1992/ThymeBoost



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分享一篇很有趣的 文章。用梯度提升的方法来改进 ARIMA,AutoARIMA 先拿到起始参数,Boosting 过程和普通 GBM 一样都是用残差代替梯度计算。角度倒是听新颖的, 就是听着可能速度有点慢,而且不能确定序列角度来说 Boosting 是否真的有意义,作者在 Kaggle 去年的 M4 上做了些实验,看着还行,有点意思。轮子在这里:https://github.com/tblume1992/ThymeBoost

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That strategy is the acquisition of a value-priced company by a growth company. Using the growth company's higher-priced stock for the acquisition can produce outsized revenue and earnings growth. Even better is the use of cash, particularly in a growth period when financial aggressiveness is accepted and even positively viewed.he key public rationale behind this strategy is synergy - the 1+1=3 view. In many cases, synergy does occur and is valuable. However, in other cases, particularly as the strategy gains popularity, it doesn't. Joining two different organizations, workforces and cultures is a challenge. Simply putting two separate organizations together necessarily creates disruptions and conflicts that can undermine both operations.

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