When the code distribution q(z) is chosen to be a normal distribution, the ℓ2 penalty −λ‖z‖2 becomes equivalent (up to a scaling factor and a constant) to logq(z), and can therefore be understood as favoring codes with high probability. However, as high probability codes do...
The ratio is known as the formation factor F (–), defined by 𝐹=𝜎𝑤𝜎.F=σwσ. (13) The formation factor is widely used to link the electrical conductivity to other porous medium properties. The best-known empirical relationship, called Archie’s equation, relates the formation...
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