dataset03: Franken ROC dataset

In RJafroc: Artificial Intelligence Systems and Observer Performance

Franken ROC dataset

Description

This is referred to in the book as the "FR" dataset. It consists of 100 cases, 67 of which are diseased, interpreted in two treatments, "0" = conventional film radiographs, "1" = digitized images viewed on monitors, by four radiologists using the ROC paradigm. Often referred to in the ROC literature as the Franken-dataset, which, along the the Van Dyke dataset, has been widely used to illustrate advances in ROC methodology.

Usage

dataset03

Format

A list with 3 elements: $ratings, $lesions and $descriptions; $ratings contain 3 elements, $NL, $LL and $LL_IL as sub-lists; $lesions contain 3 elements, $perCase, $IDs and $weights as sub-lists; $descriptions contain 7 elements, $fileName, $type, $name, $truthTableStr, $design, $modalityID and $readerID as sub-lists;

• rating$NL, num [1:2, 1:4, 1:100, 1], ratings of non-lesion localizations, NLs

• rating$LL, num [1:2, 1:4, 1:67, 1], ratings of lesion localizations, LLs

• rating$LL_ILNA, this placeholder is used only for LROC data

• lesions$perCase, int [1:67], number of lesions per diseased case

• lesions$IDs, num [1:67, 1], numeric labels of lesions on diseased cases

• lesions$weights, num [1:67, 1], weights (or clinical importances) of lesions

• descriptions$fileName, chr, "dataset03", base name of dataset in 'data' folder

• descriptions$type, chr "ROC", the data type

• descriptions$name, chr "FRANKEN", the name of the dataset

• descriptions$truthTableStr, num [1:2, 1:4, 1:100, 1:2], truth table structure

• descriptions$design, chr "FCTRL", study design, factorial dataset

• descriptions$modalityID, chr [1:2] "TREAT1" "TREAT2", treatment labels

• descriptions$readerID, chr chr [1:4] "READER_1" "READER_2" "READER_3" "READER_4", reader labels

References

Franken EA, et al. Evaluation of a Digital Workstation for Interpreting Neonatal Examinations: A Receiver Operating Characteristic Study. Investigative Radiology. 1992;27(9):732-737.

Examples

str(dataset03)
PlotEmpiricalOperatingCharacteristics(dataset = dataset03, opChType = "ROC")$Plot

RJafroc documentation built on Nov. 10, 2022, 5:45 p.m.