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题目在3 V L7 V( a6 U1 e# d
http://www.aswetalk.org/bbs/blog-1753-7898.html
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1 t5 r' N k& @# ^" R8 I4 _( T6 h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。. y& T; e4 O {
; B% L+ c1 f9 V7 p. z" P8 t2 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. ?3 y. B7 u* M. K3 R& h
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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?
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, _8 w0 T- M4 K4 K( v i4.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: j' v- o2 t4 f6 @可是本质区别是什么哪?1 n8 M& `' N! ~* h t7 Y
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5.一样大。
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; d2 O" P" Y4 E6 t6.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。% g) _6 k2 G$ u ]
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