jackknives

• n. （随身携带的）大折刀；镰刀式跳水 (jackknife的变形)

Bootstraps and jackknives: new, computer-intensive statistical tools that require no mathematical theories.
Kinds of Bootstraps and Kinds of Jackknives, Discussed in Terms of a Year of Weather-Related Data
Sharpening means for jackknives and other knives
Bootstraps and jackknives: limitations
Sharpening means for jackknives and other knives
Sharpening means for jackknives and other knives
Bootstrap Methods: Another Look at the Jackknife
Bootstrap Methods: Another Look at the Jackknife
Bootstrap Method: Another Look at the Jackknife
1977 Rietz Lecture—Bootstrap Methods—Another Look at the Jackknife