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题目在7 `& X4 p1 V z/ ~% _
http://www.aswetalk.org/bbs/blog-1753-7898.html4 s% @! U5 F O
0 Q6 y8 i# B' l* r2 Z4 K这回不明白的地方多了。还请高手指点:
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1.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。
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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.
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% U: F* v3 J! C/ t9 ]4 l! M" [3. 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?+ ]0 a5 v- R. A( J. P; n$ d8 \
9 H6 p1 i+ t$ g0 H4.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。$ D' ^' x, t( }+ p
可是本质区别是什么哪?
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5.一样大。: }/ G1 N( h5 w: j: X y9 x
1 o- H" n: H$ m9 B6.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。6 k7 R7 d8 H$ C) i2 Y0 G" U$ M
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