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Python 下有没有好用的解非线性归化问题的包?
fl2d
Oct 9, 2017
3081 views
This topic created in 3123 days ago, the information mentioned may be changed or developed.
scipy.optimize.minimize 太屎了,稍微复杂点的问题,10 次就有 8 次跑飞。
除了 minimize,有没有好用点的非线性归化的包?
minimize
非线性
归化
太屎
2 replies
2017-10-10 18:49:54 +08:00
1
hjq98765
Oct 9, 2017
同感,同求
以及 KKT 条件的写法也是有讲究的
之前有一个 w1+w2+w3+...+wn=1, wi>=0 的规划问题,
写了两个条件:
w1+w2+w3+...+wn=1
abs(w1)+abs(w2)+abs(w3)+...+abs(wn)=1
结果就跑屎了
直接把 wi>=0 放到边界条件里就成功跑出来了
2
fl2d
OP
Oct 10, 2017
@
hjq98765
我分析是我的目标函数的梯度在有些地方太平了,所以容易落在局部极最优。
可能 minimize 近似 jacobian 矩阵的时候出了问题。
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