We previously developed and validated informatic algorithms that used International Classification of Diseases 9th revision (ICD9)–based diagnostic and procedure codes to detect the presence and ...

The Annals of Statistics, Vol. 28, No. 2 (Apr., 2000), pp. 337-374 (38 pages) Boosting is one of the most important recent developments in classification methodology. Boosting works by sequentially ...

The validity of any study that classifies trades as buys or sells depends on the accuracy of the classification method. Using a Nasdaq proprietary data set that identifies trade direction, we examine ...