An analogy-based approach to estimation of software development effort using categorical data

TitreAn analogy-based approach to estimation of software development effort using categorical data
Publication TypeConference Paper
Year of Publication2014
AuthorsAmazal, F-Aa, Idri, Aa, Abran, Ab
Conference NameProceedings - 2014 Joint Conference of the International Workshop on Software Measurement, IWSM 2014 and the International Conference on Software Process and Product Measurement, Mensura 2014

Analogy-based software development effort estimation methods have proved to be a viable alternative to other conventional estimation methods since they mimic the human problem solving approach. However, they are limited by their inability to correctly handle categorical data. Therefore, we have proposed, in an earlier work, a new approach called fuzzy analogy which extends classical analogy by incorporating the fuzzy logic concept in the estimation process. The proposed approach may be applied only when the categorical values are derived from numerical data. This paper extends fuzzy analogy to deal with categorical values that are not derived from numerical data. To this aim, we used the fuzzy k-modes algorithm, a well-known clustering technique for large datasets containing categorical values. Thereafter, we evaluate the accuracy of fuzzy analogy construction-based on fuzzy k-modes using the ISBSG R8 dataset. This evaluation shows that our proposed approach leads to significant improvement in estimation accuracy. © 2014 IEEE.




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