منابع مشابه
Decision trees in epidemiological research
BACKGROUND In many studies, it is of interest to identify population subgroups that are relatively homogeneous with respect to an outcome. The nature of these subgroups can provide insight into effect mechanisms and suggest targets for tailored interventions. However, identifying relevant subgroups can be challenging with standard statistical methods. MAIN TEXT We review the literature on dec...
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We describe an experimental study of pruning methods for decision tree classi ers when the goal is minimizing loss rather than error. In addition to two common methods for error minimization, CART's cost-complexity pruning and C4.5's error-based pruning, we study the extension of cost-complexity pruning to loss and one pruning variant based on the Laplace correction. We perform an empirical com...
متن کاملIntroduction to Competing Risk Model In the Epidemiological Research
Background and aims: Chronic kidney disease (CKD) is a public health challenge worldwide, with adverse consequences of kidney failure, cardiovascular disease (CVD), and premature death. Chronic kidney disease leads to the end stage of renal disease (ESRD), if late/not diagnosed. Competing risk modeling is a major issue in Epidemiology research. In Epidemiology study, sometimes inappropriate met...
متن کاملDecision Trees
where k is fixed and y is a variable of particular interest. For example x may be customer information for a credit card customer, and y a measure of how credit worthy the customer is. Given a new instance of x we wish to be able to predict the corresponding y. This is essentially a regression problem, though is usually called classification when y is a discrete variable. We call x the independ...
متن کاملDecision Trees
Decision trees find use in a wide range of application domains. They are used in many different disciplines including diagnosis, cognitive science, artificial intelligence, game theory, engineering and data mining. Decision Trees model has two goals: producing an accurate classifier and understanding the predictive structure of the problem. The classification accuracy of decision trees has been...
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ژورنال
عنوان ژورنال: Emerging Themes in Epidemiology
سال: 2017
ISSN: 1742-7622
DOI: 10.1186/s12982-017-0064-4