feature vector) X generated from a given phrase and its constituents, whereas the output is the probability predicted by fitting X to a logistic curve.
λ is replaced as follows: where α is a scaling factor to confine the output to values between 0 and α. where x i is the ith feature, β i is the coefficient parameter of x i , and β 0 is the 'intercept', which is the value of f (X) when all feature values are zero.