发现指数函数外推法引入数据处理后大大改进了大气温度的归算结果，而对气压归算的影响却很小。
It is confirmed that exponential function extrapolation contributes much to the improvement of inverted temperature; however it does much less for pressure inversion.
提出了小波函数和普通函数内积数值计算的外推加速算法，给出了外推加速算法的可行性保障定理。结果表明此算法的收敛速度较快， 得到的近似值的逼近效果较好。
In this paper, we give an extrapolation method for integral with wavelet. Theorem can ensure it is possibility. The result show that the method converge quickly, and the approach effect is very good.
综合考虑SVM的学习能力、外推能力及寻优时间，决定选择线性核函数作为SVM在柴油机尾气分析中的核模型。
Considering the learning and extrapolating ability as well as the parameter optimizing time, linear kernel is determined to be used in SVM in the analysis of diesel engine exhaust emissions.
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