of coefficient bkℓ as a basis to compute weights. Due to standardization, all tkℓ’s are
on the same scale and, since these are standardized by division by the corresponding
standard error σkℓ, uncertainty is taken into account. When we use |tkℓ| instead of tkℓ
we guarantee the weights to be larger than or equal to 0.
For numerical attributes, we can map |tk1| directly to a ‘pseudo’ absolute t-value
vk for attribute k, that is, vk = |tk1|. Then, including a normalization of the weights
(for ease of interpretability), we can compute wk using