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data_mining:large_datasets [2014/09/06 12:38] – [Stochastic gradient descent] phreazer | data_mining:large_datasets [2014/09/06 12:45] (current) – [Online Learning] phreazer | ||
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Verwende b = mini-batch size (typisch: 2-100) | Verwende b = mini-batch size (typisch: 2-100) | ||
+ | |||
+ | ===== Online Learning ===== | ||
+ | Wenn kontinuierlicher Datenzufluss. | ||
+ | |||
+ | Lernen von $p(y=1|x; | ||
+ | |||
+ | Repeat forever { | ||
+ | Get (x,y) corresponding to user. | ||
+ | Update \theta using (x,y) | ||
+ | \theta_j = \theta_j - \alpha (h_\theta(x)-y) x_j | ||
+ | } | ||