Browsing by Author "Sahai, Ashok"

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    A Study of the Effectiveness of the Routing Decision Support Algorithm
    (2010-11-03T15:11:32Z) Sahai, Ashok; Nikov, Alexander; Goodridge, Wayne
    Multi criteria decision making (MCDM) methods like analytic hierarchy process, ELECTRE and multi-attribute utility theory are critically studied. They have irregularities in terms of the reliability of ranking of the best alternatives. The Routing Decision Support (RDS) algorithm is trying to improve some of their deficiencies. This paper gives a mathematical verification that the RDS algorithm conforms to the test criteria for an effective MCDM method when a linear preference function is considered
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    A Study of the Effectiveness of the Routing Decision Support Algorithm
    (World Academy of Science, Engineering and Technology, 2007) Goodridge, Wayne; Nikov, Alexander; Sahai, Ashok
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    Swarm-Optimization-Based Affective Product Design Illustrated by a Pen Case-Study
    (International Journal of Computer and Information Engineering, 2007) Mohais, Arvind; Nikov, Alexander; Sahai, Ashok; Nesil, Selahattin
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    Swarm-Optimization-Based Affective Product Design Illustrated by a Pen Case-Study
    (2011-06-14) Mohais, Arvind; Nikov, Alexander; Sahai, Ashok; Nesil, Selahattin
    An optimization approach for suggesting product design parameters based on emotive responses is proposed that combines Kansei techniques and particle swarm optimization algorithm (PSO). The approach involves designing a Kansei survey for collecting data on customers’ affective responses to various aspects of a product, using several exemplars of the product. After information gathering, the PSO algorithm is employed to build a prediction binary linear model that aggregates the survey data. Subsequently, another binary linear model links product design parameters to the outputs of the first model to establish mathematical connections between the subjective impression of a product (Kansei) and its properties. This approach is illustrated by a case study for pen design. Three PSO neighborhood configurations are tested, and the results yield insight into the nature of the optimization function. Experimental work in implementing the proposed approach was able to suggest customers’ preferences for pen design attributes that would be considered optimal by all of those surveyed. They can be used for improvement and development of new future products.
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    A Tunable Swarm-Optimization-Based Approach for Affective Product Design
    (Proc. 9th WSEAS Int. Conf. on Mathematical and Computational Methods in Science and Engineering, 2007) Mohais, Arvind; Nikov, Alexander; Sahai, Ashok