Most other strategies for de novo assembly of short sequence reads can be broadly divided into two classes: extension-based methods and De Bruijn (or Eulerian) graph algorithms (Nagarajan and Pop 2013).
Often we prescribe off-label on the basis of "class extension," which involves deciding that if one member of a drug family is F.D.A.-approved for a certain disorder, it's safe to presume that other members of the same chemical family will work as well.
A class extension is a method that is defined in a module, but whose class is defined elsewhere.
In this paper, we present a high-order weighted essentially non-oscillatory (WENO) scheme for solving a multi-class extension of the Lighthill–Whitham Richards (LWR) model.
Instead, the Area Under the receiver operating characteristic Curve (AUC) and its multi-class extension, MAUC, have been proved to be better alternatives.
TSP: top scoring pair; k-TSP: k top scoring pairs; HC-TSP: multi-class extension of TSP with hierarchical classification scheme; HC-k-TSP: multi-class extension of k-TSP with hierarchical classification scheme; SVM: Support Vector Machine classification; PAM: Prediction Analysis of Microarray; LOOCV: leave-one-out cross validation.
The framework is designed to be easily accessible while allowing advanced users to integrate new feature-identification algorithms through simple class extension, thus facilitating expansion to novel feature types or identification of study-specific feature types.
This is different from the TSP family classifiers in that three binary to multi-class extension schemes (1-vs-1, 1-vs-others, hierarchical classification) lead to three different classifiers.
Class extensions offer a convenient way to incrementally modify existing classes when subclassing is inappropriate.
Furthermore, conflicting class extensions are either disallowed, or resolved by linearization, with consequent negative effects.
Open multi-methods generalize multiple dispatch towards open-class extensions, which improve separation of concerns and provisions for retroactive design.
