Exact(2)
The null hypothesis tested by the test of significance of Protocol I is too limited and redundant (i.e., as long as a repeated split cross-validation estimator is used) and should not be pursued in practice.
In contrast, the statistical significance procedure utilized by Protocol II (see Materials and Methods section) uses a repeated split cross-validation estimator effectively eliminating uncertainty introduced by non-representative splits.
Similar(58)
Greipel lost contact briefly and there were repeated splits at the front featuring challengers for the overall standings in Daniel Martin and Gallopin, but once the flatter main road after Rhayader had been reached, with Greipel, Groenewegen and a plethora of their team-mates still in contact – albeit far from comfortable – the sprint loomed.
The decomposition strategy is in direct contrast to the traditional multi-element approaches which define the sub-domains by repeated splitting of the axes in the parameter space.
For example, information spreading happens quite differently on a grid (like the street network of Manhattan, where there are many alternative routes between two points), a tree (where points are connected by the repeated splitting of branches), or a "small world" network (where there are generally many shortcuts so that any point can be reached from any other in relatively few jumps).
The patterns of diversity found in its mitochondrial DNA are consistent with the repeated splitting and merging of its populations as geographical barriers were alternately formed and inundated.
These interactions were also identified ten out of ten times in the repeated split-sample validation.
Some spurious interactions were also found although they were less stable than the true interactions in the repeated split-sample validation.
Moreover, there are no formal rules for assessing the significance of an observed H relative to H. To get a rough estimate of the false discoveries we performed repeated split-sample evaluations of all interactions deemed important from the visual assessment.
One approach to discourage spurious interactions is to place an incentive for repeated splits on the same variable in the construction of each CART [ 31].
To rigorously develop our models, we used the least absolute shrinkage and selection operator (LASSO) [ 19] for variable selection and evaluated their predictive ability using repeated splits of the data into training and test sets.
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