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Compared with the conventional probabilistic mean-variance method, fuzzy number can better describe an uncertain environment with vagueness and ambiguity. In this paper, the portfolio selection model with bounded assets is proposed by means of possibilistic mean and possibilistic variance under the assumption that the returns of assets are triangular fuzzy numbers. Moreover, the obtained quadratic...
Since product substitutability would affect the vendor's ordering strategy and the manufacturer's return policy, it is interesting for the manufacturer to make proper return policy for substitutable products such that it is worthwhile to maximize the profit. This paper proposes a two-echelon model composed of a manufacturer and a vendor with two substitutable products under fuzzy demands. In the model,...
This paper presents a nonlinear model of a joint production - marketing problem intending at determining the unit selling price, unit marketing expenditure and economic production quantity per production cycle simultaneously. The proposed model involves some cost functions such as market share loss cost which is not regarded in similar models in the related literature. The model is a signomial geometric...
This paper presents a new similarity measure method on a combination of color and texture feature representations. In this method, the YIQ color space is chosen, because it can describe both color images and gray images and the transform from RGB to YIQ is linear and simple than other color space. In the proposed method, we firstly segment image using texture feature by combination of wavelet transform...
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