The model has higher fitting precision and good extrapolating performance, so it can avoid the limits of other predicting methods.
该模型具有较高的拟合精度和良好的外推预测性能，可避免其它预测方法的局限性。
Especially on the quantitative forecast aspect, forecast the urban land expansion by method of factor forecasting, method of trend extrapolating and method of ca model from different Angle.
特别是在定量预测方面，从不同角度运用因素预测法、趋势外推法、CA模型法等三种方法对城市用地扩展进行估算。
By extrapolating rules the ontology model of index structure and distributed architecture established, the results show the high degree of configurability and scalability of this method.
通过对索引结构和分布式结构所建立的本体模型进行规则推演和应用，结果表明该方法具有高度的可配置性和可扩展性。
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