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标题:The use of classification and regression trees in clinical epidemiology
时间:2020-02-14 22:37:12
DOI:10.1016/S0895-4356(00)00344-9
作者:Roger J. Marshall
关键词:Classification rules;Tree-based algorithms;Clinical epidemiology
出版源: 《Journal of Clinical Epidemiology》 ,2001 ,54 (6) :603-609
摘要:A critique is presented of the use of tree-based partitioning algorithms to formulate classification rules and identify subgroups from clinical and epidemiological data. It is argued that the methods have a number of limitations, despite their popularity and apparent closeness to clinical reasoning processes. The issue of redundancy in tree-derived decision rules is discussed. Simple rules may be unlikely to be “discovered” by tree growing. Subgroups identified by trees are often hard to interpret or believe and net effects are not assessed. These problems arise fundamentally because trees are hierarchical. Newer refinements of tree technology seem unlikely to be useful, wedded as they are to hierarchical structures.
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