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题目在
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3 r4 i- q0 M* ~5 y% D这回不明白的地方多了。还请高手指点:
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7 t. i- _; G/ b" ]( u5 y1 d7 C4 z1.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。7 F. H$ L# {* l0 Z! F
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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. ; G5 e' [9 O( X2 d; y
( {- B' K0 q+ g" n. r3. 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?( Z3 }" h+ U" |5 V
2 a& [7 x. ]% A" k+ b4.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。" _, [( ~7 j- T2 O+ c
可是本质区别是什么哪?: u5 Y. v0 N, Z+ m0 O
# w* ?* L; B8 S! o: c y5.一样大。
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6.蒙特卡洛的实质?我也不知道。它的误差是 O(1/sqrt(N)), N是sample个数。 D9 M, f% S9 A
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