The Impact of Edge Displacement Vaserstein Distance on UD Parsing Performance

Here we take a standard method found in physics used to remove known background functions from data, for example removing the spectra associated with amorphous radiators from those associated with lattice-structure radiators to obtain enhanced spectra, that is without noise (Timm 1969). Here we consider the variations associated with covariants as similar background data to be removed, so as to observe if there is any variation associated with EDV. Similar to partial correlations, removing the background signal of a potential covariant allows us to visually evaluate the specific impact a variable of interest has on the target variable. This involves fitting the control data and the target (e.g., the size of training data and LAS) and then dividing the target variable by the predicted values from this fit. This normalized data is then used to fit a second potential covariant which too is used to divide the normalized target variable values. This can be repeated for any number of covariants. Ultimately a normalized version of the target variable is left and the control target of interest (e.g., EDV) is evaluated against these values and if a trend is still observed, it is evidence that this variable has an impact on the target variable even with the variance associated with these covariants removed. This technique ultimately acts as a way of tempering correlations we calculate and gives us a means of disentangling contributions that might not be caught by partial correlation calculations.