Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SZZ Unleashed: An Open Implementation of the SZZ Algorithm -- Featuring
  Example Usage in a Study of Just-in-Time Bug Prediction for the Jenkins
  Project   Numerous empirical software engineering studies rely on detailed information
about bugs. While issue trackers often contain information about when bugs were
fixed, details about when they were introduced to the system are often absent.
As a remedy, researchers often rely on the SZZ algorithm as a heuristic
approach to identify bug-introducing software changes. Unfortunately, as
reported in a recent systematic literature review, few researchers have made
their SZZ implementations publicly available. Consequently, there is a risk
that research effort is wasted as new projects based on SZZ output need to
initially reimplement the approach. Furthermore, there is a risk that newly
developed (closed source) SZZ implementations have not been properly tested,
thus conducting research based on their output might introduce threats to
validity. We present SZZ Unleashed, an open implementation of the SZZ algorithm
for git repositories. This paper describes our implementation along with a
usage example for the Jenkins project, and conclude with an illustrative study
on just-in-time bug prediction. We hope to continue evolving SZZ Unleashed on
GitHub, and warmly invite the community to contribute.

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The categories of this paper are: alg-geom
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
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The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
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The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th