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Software Module Clustering as a Multi-Objective Search Problem

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3 Author(s)
Praditwong, K. ; Centre of Excellence for Res. in Comput. Intell. & Applic. (CERCIA), Univ. of Birmingham, Birmingham, UK ; Harman, M. ; Xin Yao

Software module clustering is the problem of automatically organizing software units into modules to improve program structure. There has been a great deal of recent interest in search-based formulations of this problem in which module boundaries are identified by automated search, guided by a fitness function that captures the twin objectives of high cohesion and low coupling in a single-objective fitness function. This paper introduces two novel multi-objective formulations of the software module clustering problem, in which several different objectives (including cohesion and coupling) are represented separately. In order to evaluate the effectiveness of the multi-objective approach, a set of experiments was performed on 17 real-world module clustering problems. The results of this empirical study provide strong evidence to support the claim that the multi-objective approach produces significantly better solutions than the existing single-objective approach.

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Software Engineering, IEEE Transactions on  (Volume:37 ,  Issue: 2 )