Explicitly representing expected cost: an alternative to ROC representation

摘要: ABSTRACT This paper proposes an alternative to ROC representation, in which the expected cost of a classi er is represented explicitly. representation maintains many advantages but easier understand. It allows experimenter immediately see range costs and class frequencies where particular best quantitatively how much better it than other ers. demonstrates there point/line duality between two representations. A point space representing becomes line segment spanning full frequencies. produces equivalent operations spaces, allowing most techniques used analysis be readily reproduced space.