Li Xiao-li

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The fluctuations of market price bring risks to supply chain enterprises, which sign some optional forward contracts in order to reduce these risks. As an effective instrument for risk management, optional forward contract has the character of flexibility and variety. This paper aims to formulate the price of the contract using the option pricing theory and(More)
Grade estimation is one of the most complicated aspects in mining. Its complexity originates from scientific uncertainty. This paper introduces a nonlinear Wavelet Neural Network (WNN) approach to the problem of ore grade estimation. The nonlinear WNN method combing the properties of the wavelet transform and the advantages of Artificial Neural Networks(More)
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