METHOD: the principle of Markov model was expounded and its application in the forecasting of drug market was illustrated with examples.
方法：阐述马尔科夫模型的原理，通过实例说明其在药品经济预测中的应用。
By means of introducing ripe geometrical Brown movement model for common commodity price forecasting a coal price fluctuation model of coal market is established.
通过引入用于预测普通商品价格的较成熟的几何布朗运动模型建立了燃煤市场的煤价波动模型。
This paper puts forward a model of discovering and forecasting price trend in market, based on neural networks BP algorithms.
提出了一种利用神经网络BP算法模型于发现和预测商业市场价格变化趋势的模型。
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