= 2018-05-22 =

== 計算廣告 ==

* CoEC（clicks over expected clicks）
  * [https://remonstrate.wordpress.com/2012/01/02/computational-advertising-%E7%AC%94%E8%AE%B0%EF%BC%88%E4%BA%94%EF%BC%89/ Computational Advertising 筆記（五）]
* receiver operating characteristic curve (ROC curve)
  * AUC" ("Area Under Curve")
* Logarithmic loss (related to cross-entropy) - http://wiki.fast.ai/index.php/Log_Loss