桂林理工大学学报
桂林理工大學學報
계림리공대학학보
Journal of Guilin University of Technology
2015年
3期
514-517
,共4页
杨赤中插值%负权%遗传算法%约束条件
楊赤中插值%負權%遺傳算法%約束條件
양적중삽치%부권%유전산법%약속조건
Yang Chizhong Interpolation%negative-weight%genetic algorithm%constraint condition
针对杨赤中插值法数学模型解算权系数时存在负权现象, 在分析了负权分布规律的基础上, 增设非负约束条件, 利用遗传算法 ( GA) 在全局范围内求解最优解的性能, 研究消除格网DEM插值的负权问题, 通过MATLAB编程验证算法的正确性、 准确性, 并与其加速罚函数法进行了比较. 对比显示, 遗传算法估值精度、 运算速度优于加速罚函数法.
針對楊赤中插值法數學模型解算權繫數時存在負權現象, 在分析瞭負權分佈規律的基礎上, 增設非負約束條件, 利用遺傳算法 ( GA) 在全跼範圍內求解最優解的性能, 研究消除格網DEM插值的負權問題, 通過MATLAB編程驗證算法的正確性、 準確性, 併與其加速罰函數法進行瞭比較. 對比顯示, 遺傳算法估值精度、 運算速度優于加速罰函數法.
침대양적중삽치법수학모형해산권계수시존재부권현상, 재분석료부권분포규률적기출상, 증설비부약속조건, 이용유전산법 ( GA) 재전국범위내구해최우해적성능, 연구소제격망DEM삽치적부권문제, 통과MATLAB편정험증산법적정학성、 준학성, 병여기가속벌함수법진행료비교. 대비현시, 유전산법고치정도、 운산속도우우가속벌함수법.
In negative-weight of Yang Chizhong model, the spread regular pattern of negative-weight was re-searched, and nonnegative constraint was set up.With the property of genetic algorithm ( GA) to calculate op-timal solution in total field, clearing up negative-weight is studied for the interpolation of gridding DEM.The correctness and accuracy of the method were validated with matlab programming, and compared with the meth-od of accelerate themixed penalty function.Comparison shows that GA is superior to method of accelerate the mixed penalty function in valuation accuracy and calculation speed.
