Methodological aspects of classification the natural - language cases descriptions based on linguistic analysis of subject area are under discussion.
This and other methodological issues concerning classification criterion may be crucial issues that might partially explain the controversial findings in the field (Monfort and Monfort 2012).
Differences in target populations, age range, data collection, diagnostic and classification criteria, methodological study design, and a lower reliability of retrospective studies, may account for such controversial results.
A sixth methodological consideration is the classification of patients into groups based on compliance.
Based on the reviewer's classification of methodological quality, none of the thirteen studies was deemed good quality.
Lin et al. (2008) also pointed out some possible methodological flaws in the classification setup of Baranzini et al. (2005), which resulted in overly optimistic prediction accuracy values in the original paper.
By applying such techniques, one will gain statistical power, avoid unintended methodological challenges based on classification problems, as well as allowing the data to provide more explicit details about the non-linear relations.
We developed the evidence-informed recommendations using a three-phase iterative process involving (1) classification, assessing methodological quality, synthesis of the evidence and drafting the preliminary recommendations; (2) interprofessional team review, GRADING and revision of recommendations incorporating values and preferences; and (3) external endorsement and final refinement.
We used Ferrera's typology because it accounts for theoretical and methodological weaknesses of previous classifications and it categorizes countries based on different aspects of the welfare provision, and therefore various recent studies have used it to analyse variations in population health and health inequalities 12, 27, 29, 32, 34, 35, 55.
Section 3 illustrates the methodology, including experimental settings, data description, feature extraction and selection methods, classification algorithms, and methodological framework.
