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초록
Covering arrays relax the condition of orthogonal arrays by only requiring that all combination of levels be covered but not requiring that the appearance of all combination of levels be balanced. This allows for a much larger number of factors to be simultaneously considered but at the cost of poorer estimation of the factor effects. To better understand patterns between sets of columns and evaluate the degree of coverage to compare and select between alternative arrays, we suggest several new graphical methods that show some of the patterns of coverage for different designs. These graphical methods for evaluating covering arrays are illustrated with some examples. Copyright (c) 2015 John Wiley & Sons, Ltd.
키워드
orthogonal array; strength; covering array; two-way coverage evaluation matrix; two-way coverage evaluation plot; correlation-based r-plot; two-way coverage evaluation scatterplot matrix; three-way coverage missing region plot; three-way coverage evaluation plot
- 제목
- Graphical methods for evaluating covering arrays
- 저자
- Kim, Youn Gil; Jang, Dae-Heung; Anderson-Cook, Christine M.
- DOI
- 10.1002/qre.1857
- 발행일
- 2016-06
- 유형
- Article
- 권
- 32
- 호
- 4
- 페이지
- 1467 ~ 1481