CEDRIC A. B. SMITH’s scientific contributions

... Similar notions were reiterated by Nieminen and Klinge ( 1963 ) , who discussed Iffy's 1962 theory of abnormal endocrine support (Iffy 1962 ) . Although occasionally disputed, the dependence of placenta previa on maternal age and parity has been solidly supported by the fi ndings of Penrose ( 1939 ) and Kalmus ( 1947 ) . It has often been stated that placenta previa is significantly more common after a prior Cesarean section, and the more sections, the greater the probability of a previa ( To and Leung 1995 ; . ...

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Placental Shape Aberrations

... A number of supervised learning methods methods have been proposed, as summarised for instance in Ripley (2007), Hastie et al. (2009), andLiu et al. (2011). For continuous traits, this includes linear (or Fisher) discriminant analysis (LDA, Fisher, 1936), quadratic discriminant analysis (QDA, Bensmail & Celeux, 1996;Fraley & Raftery, 2002;Smith, 1946), heteroscedastic discriminant analysis (Kumar & Andreou, 1998), regularised discriminant analysis (Friedman, 1989), mixture discriminant analysis (Hastie & Tibshirani, 1996), and probabilistic Fisher discriminant analysis (Bouveyron & Brunet, 2012). These are all soft discrimination methods (Wahba, 1998), where a joint statistical distribution of class membership (taxon) and trait is assumed, and the class with maximal posterior probability is selected. ...

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Identification of taxon through classification with partial reject options

... The confidence intervals on the estimated AUC values are calculated from the equivalence of the area under the ROC curve with the Mann-Whitney U statistic [67][68][69]71,74 . Let X and Y be independent random variables, and let x 1 , x 2 , ⋯ , x i , ⋯ , x m and y 1 , y 2 , ⋯ , y i , ⋯ , y m be samples of X, Y, respectively. ...

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Screening for idiopathic pulmonary fibrosis using comorbidity signatures in electronic health records