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# System prepended metadata

title: Day 8 CTR模型收斂優化 (Froggy)
tags: [課程筆記]

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---
title: Day 8 CTR模型收斂優化 (Froggy)
tags: '課程筆記'
---

# Day 8 CTR模型收斂優化 (Froggy)

過去
CTR > 0.5 = 1
CTR < 0.5 = 0

問題：預測很差或廣告沒有走出去
解決：機率根據前一天調整
i.e. CPC > 5 機率家0.015