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Simpler Hyperparameter Optimization for Software Analytics: Why, How, When?

delete2022-08-01
delete14
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OA
AI
A
Amritanshu Agrawal
X
Xueqi Yang
R
Rishabh Agrawal
R
Rahul Yedida
X
Xipeng Shen
T
Tim Menzies *
DOI:10.1109/TSE.2021.3073242delete
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Abstract

Abstract

En 中文
How can we make software analytics simpler and faster? One method is to match the complexity of analysis to the intrinsic complexity of the data being explored. For example, hyperparameter optimizers find the control settings for data miners that improve the predictions generated via software analytics. Sometimes, very fast hyperparameter optimization can be achieved by DODGE-ing; i.e., simply steering way from settings that lead to similar conclusions. But when is it wise to use that simple approach and when must we use more complex (and much slower) optimizers? To answer this, we applied hyperparameter optimization to 120 SE data sets that explored bad smell detection, predicting Github issue close time, bug report analysis, defect prediction, and dozens of other non-SE problems. We find that the simple DODGE works best for data sets with low intrinsic dimensionality (mu(D) approximate to 3) and very poorly for higher-dimensional data (mu(D) > 8). Nearly all the SE data seen here was intrinsically low-dimensional, indicating that DODGE is applicable for many SE analytics tasks.
Keywords:
Software analytics
hyperparameter optimization
defect prediction
bad smell detection
issue close time
bug reports
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Journal

IEEE Transactions on Software Engineering cover
IEEE Transactions on Software Engineering
IF:
5.6
Papers:
2.8K
Citations:
1.1W

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North Carolina State University
Scholars:
2.6W
Papers: 2.3W
Citations: 3.7W