The parameter α should be chosen according to the ratio between the number of purchases and the number of clicks. Let label yi and yiclick be feedback {0,1}, and θ be the parameters of the model, we have L(θ) =∑cross_entropy(pi,yi) (6) +α...
The expander used in the system had a geometric compression ratio of 21 together with a steam outlet timing that caused high re-compression. Inlet pressures of up to 30 bar were therefore required for a stable expander power output. Such high pressures increased the pump power, and reduced ...