7 D& ]7 O; ~7 F. `3 H1.不知道。 高低中音什么的一点都不知道。不过解题思路就是找可能的组合个数。 1 M* T. z2 I2 t/ w. i6 o% `# m( ^4 n5 \: F3 Z
2 well, I can reason a bit from the names of these optimization types. The advantage of randomized optimization is for looking for global minimum without being trapped by a local minimum (which is often the case for deterministic optimization). so far (a few years ago before I left school, to be accurate) optimization is cursed by dimensionality, and random optimization has only limited success. 0 l7 y# ^0 l( b
" j( G! b. x+ | z3. 没听说过傅里叶空间插值。如果有的话也不奇怪。那么像实空间插值类似,傅里叶空间插值能准确复原已知频率的结果。别的还有什么呢?7 g' N- X3 O2 }' F/ I
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4.不知道。我只知道复数比较奇妙。有个柯西定理,复函数如果一阶可导,则无穷阶可导。这在实函数是不可能的。3 K6 k( H2 d( W. y
可是本质区别是什么哪?6 u6 ~ z p- x; V1 ]+ y, e8 I7 t5 \