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    An integrated artificial neural network-genetic algorithm clustering ensemble for performance assessment of decision making units

    Access Status
    Fulltext not available
    Authors
    Azadeh, A.
    Saberi, Morteza
    Anvari, M.
    Mohamadi, M.
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Azadeh, A. and Saberi, M. and Anvari, M. and Mohamadi, M. 2011. An integrated artificial neural network-genetic algorithm clustering ensemble for performance assessment of decision making units. Journal of Intelligent Manufacturing. 22 (2): pp. 229-245.
    Source Title
    Journal of Intelligent Manufacturing
    Additional URLs
    http://www.springerlink.com/content/y8r28q8811301250/
    ISSN
    0956-5515
    School
    Digital Ecosystems and Business Intelligence Institute (DEBII)
    URI
    http://hdl.handle.net/20.500.11937/49593
    Collection
    • Curtin Research Publications
    Abstract

    This study proposes a non-parametric efficiency frontier analysis method based on artificial neural network (ANN) and genetic algorithm clustering ensemble (GACE) for measuring efficiency as a complementary tool for the common techniques of the efficiency studies in the previous studies. The proposed ANN GA algorithm is able to find a stochastic frontier based on a set of input–output observational data and do not require explicit assumptions about the functional structure of the stochastic frontier. Furthermore, it uses a similar approach to econometric methods for calculating the efficiency scores. Moreover, the effect of the return to scale of decision making unit (DMU) on its efficiency is included and the unit used for the correction is selected based on its scale (under constant return to scale assumption). Also, in this algorithm, GA is used to cluster DMUs to increase DMUs’ homogeneousness. It should be noted that data envelopment analysis (DEA) is sensitive to the presence of the outliers and statistical noise. It is also not capable of performing prediction and forecasting. This is shown by two examples related to outlier situations. However, the proposed algorithm is capable of handling outliers and noise and DEA is used as a benchmark to show advantages of the proposed algorithm. Also, the proposed algorithm and conventional algorithm are compared in viewpoint of DEA through statistical t-test. The proposed approach is applied to a set of actual conventional power plants to show its applicability and superiority.

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