Spectrum Based Fault Localisation(SBFL), using 64 real-world faults from the Defects4j repository.
Based on Formula ochiai, and used method level aggregation of SBFL scores
Defects4j, Project Lang - buggy version 1, 3~65
Used a coverage tool provided by Defects4j
acc@n counts the number of faults that have been localized within top n places of the ranking. If there are multiple faulty methods, I assumed that the fault is localized if any of them are ranked within top n places.
total faults: 64
acc@1: 40
acc@3: 54
acc@5: 57