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Clustering and dimensionality reduction to determine important software quality metrics

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Author
Turan, Metin
Çataltepe, Zehra
Type
Article
Date
2007
Language
en_US
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Abstract
During the last two decades research on software engineering is concentrated on quality. The best approach to quality evaluation goes through determining well-defined metrics on software properties. One such property is module complexity, which is a view of the software that is related to how easily it can be modified. There has been work on constructing a metrics domain which measures the module complexity. Generally, PCA (Principal Component Analysis) is used for defining principal metrics in the domain. Since there are usually no labels for the software data, an unsupervised dimensionality reduction technique, such as PCA needs to be used for determining the most important metrics. In this study, we use the clustering similarity obtained when a certain subset of metrics and when the whole set of metrics are used, to determine the most important metrics. We measure the relative difference/similarity between clusterings using three different indices, namely Rand, Jaccard and Fowlkes-Mallow. We use both backward feature selection and PCA for dimensionality reduction. On the publicly available NASA data, we find out that instead of the whole set of 42 metrics, using only 15 dimensions, we get almost the same clustering performance. Therefore, instead of the whole set of software metrics, a smaller number of them could be used to evaluate the software quality.
URI
https://hdl.handle.net/11413/2441
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  • Scopus Publications [724]
  • WoS Publications [1016]

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İstanbul Kültür University

Hakkında |Politika | Kütüphane | İletişim | Send Feedback | Admin

Istanbul Kültür University, Ataköy Campus E5 Karayolu Üzeri Bakırköy 34158, İstanbul / TURKEY
Copyright © İstanbul Kültür University

Creative Commons Lisansı
IKU Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

Designed by  UNIREPOS