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- W3122039400 abstract "Predictive models in regression and classification problems typically have a single model that covers most, if not all, cases in the data. At the opposite end of the spectrum is a collection of models each of which covers a very subset of the decision space. These are referred to as small disjuncts. The tradeoffs between the two types of models have been well documented. Single models, especially linear ones, are easy to interpret and explain. In contrast, disjuncts do not provide as clean or as an interpretation of the data, and have been shown by several researchers to be responsible for a disproportionately large number of errors when applied to out of sample data. This research provides a counterpoint, demonstrating that simple disjuncts provide a credible model for financial market prediction, a problem with a high degree of noise. A related novel contribution of this paper is a method for measuring the yield of a learning system, which is the percentage of in sample performance that the learned model can be expected to realize on out-of-sample data. Curiously, such a measure is missing from the literature on regression learning algorithms." @default.
- W3122039400 created "2021-02-01" @default.
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- W3122039400 date "2009-09-01" @default.
- W3122039400 modified "2023-09-23" @default.
- W3122039400 title "Prediction in Financial Markets: The Case for Small Disjuncts" @default.
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