Defects08 V2

Nearest Neighbor Sampling for Cross Company Defect Predictors Burak Turhan, Ayse Bener, (Bogazici University, Turkey) Tim Menzies (WVU, USA) DEFECTS’08 Seattle, USA

Generality in SE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

#include shameLessPlug.h http://promisedata.org ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Is this worthy of study? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],What happens next…

Data (the usual suspects, plus 3) ,[object Object],[object Object],[object Object],[object Object]

Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Learner ,[object Object],[object Object],Lessman et.al IEEE TSE’09: AUC TP vs FP Jiang et.al Defects’08 : AUC pd vs pf

Experiment #1: local vs imported ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Local vs imported

Experiment #1: results ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Local vs imported

Experiment #1: discussion ,[object Object],[object Object],[object Object],[object Object],Local vs imported

Experiment #2: local vs (imported+NN) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Local vs imported+NN vs imported new

Experiment #2: PD results ,[object Object],[object Object],[object Object],Local vs imported+NN vs imported CC= imported; NN=imported+NearNeigh; WC=local

[object Object],[object Object],[object Object],Local vs imported+NN vs imported Experiment #2: PF results CC= imported; NN=imported+NearNeigh; WC=local

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Local vs imported+NN vs imported Experiment #2: Discussion

[object Object],[object Object],[object Object],[object Object],Incremental Learning on local data Experiment #3: Incremental learning new ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Summary

Generality ,[object Object],[object Object],[object Object]

Conclusions: generality in SE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

And finally: implications of ceiling effects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Defects08 V2

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Defects08 V2