Client Behavior → User Experience

$$ \text{LS:}\ (E,x) \;\longrightarrow\; \text{UB:}\ E(t\mid x)+\epsilon \;\longrightarrow\; \text{SGD:}\ \frac{dE_x}{dt} \;\longrightarrow\; \text{UI/UX:}\ \frac{dE_{\bar{x}}}{dt}\ \pm\ z\sqrt{\frac{d^2 E_x}{dt^2}} \;\longrightarrow\; \text{EC}\ \int E_x\,dt + \epsilon_x t + C_x $$

Note: Nadine Djuiko's Backpropagation to Optimal Work Hours