p***z
发帖数: 94 | 1 THz transmission properties of subwavelength fractal structures on the
copper foils (Proceedings Paper)
Here's the link, which I don't have access to download the pdf file:
http://spie.org/x648.html?product_id=755509
Would you please send the pdf to a********[email protected]? Thank you much! |
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j****e
发帖数: 245 | 2 I do not know if it will be any helpful. But you may want to check out the
references below.
http://www.blueberry-brain.org/dynamics/mitina-fractal-perception.htm
Title: The interactive effects of conceptual level and interest inventory
degree of structure on measures of career development.
Author: Trezona, Richard R.
Citation: Dissertation Abstracts International Vol 47(8-B)1987 p.3548
Title: Measured interests versus expressed interests as predictors of
long-term occupational membership.
Autho |
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s****h
发帖数: 3979 | 3 假设一个一维时间序列X
如果x_i > 0，那么x_i+1 > 0的概率是常数P, 如果x_i < 0，那么x_i+1 < 0的概率是
常数P。
如果x_i+x_i+1 > 0, 那么x_i+2 + x_i+2> 0的概率是常数P, 如果x_i+x_i+1 < 0, 那
么x_i+2 + x_i+2< 0的概率是常数P。
......
如果x_i+x_i+1+...x_i+2^n-1 > 0, 那么x_i+2^n + x_i+2^(n+1)-1> 0的概率是常数P,
如果x_i+x_i+1+...x_i+2^n-1 < 0, 那么x_i+2^n + x_i+2^(n+1)-1 < 0的概率是常数
P。
其实就是一个fractal，如果是布朗运动的差分，Gaussian Noise， P=0.5。
想问的是：
１。如果P不等于0.5，那么预测下一个值大于还是小于0理论上可以达到多少？预测下2
^n个值的和呢？
２。简化一下问题，假如x_i只能是+1,-1，其他不变。
很久以前读paper A时提到过paper B里分析过这个东西。可惜当时没把B的信息记录下
来。 |
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d*n
发帖数: 137 | 6 what is an attractor? Different people may have different
diffinition. However, Milnor attractor and essential
attractor are widely used.
Milnor attractor is a very weak definition. I will introduce
you some
reference papers later.
Strange attractor is one kind of attractor with fractal
dimension. in most
cases, chaotic attractor is a strange attractor. The books
and papers byOtt
(Maryland University), Ashwin (Coventry Uni), Yorke will be
helpfull for unstanding
attractor or chaotic attractor.
S |
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f*******d
发帖数: 339 | 7 For random walk,
L~t
A^2 ~ t,
so L ~ A^2, independent of dimension. |
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i*****u
发帖数: 26 | 8 Of course N~A^2 is not correct (I have tested for 1D case). The key point is
how the average repeat times at each trajectory depends on L, if the
relation is like: repeat times~A^b then your conclusion will not hold.
This problem is actually pretty difficult, you can make a search to see if it
is already solved by those statistics professionals but I think the
possibility is not high (they are not so interested in the lattice).
I suggest you first have a look on 1D case. This case is very simple |
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s**********t
发帖数: 680 | 10 Journal of Theoretical Biology
Volume 141, Issue 1, 8 November 1989, Pages 117–136
Title: A fractal model of chromosomes and chromosomal DNA replication
Author: Manabu Takahashi
Link:
http://dx.doi.org/10.1016/S0022-5193(89)80012-8
Thank you very much for your help!
Please send it to: b************[email protected]
Thanks!!! |
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p***l
发帖数: 1775 | 11 换专业学统计的,让版上的大牛们见笑了:)
这是第一个学期,因为没有background,同时现在又是春节,advisor给我找了半天,才在
统计系找到2门课能上,其中一个还是300level的.他后来又加了一门数学系的课和一门
生物系的课,我看了一下,都不大想选.
数学系的课是Nonlinesar Dynamics and Chaos.
Qualitative study of linear and nonlinear ordinary differential
equations and discrete time maps including stability analysis,
bifucations, fractal structures and chaos; applications to biology,
chemistry, physics and engineering.
生物系的课是Pibbs-Struct &Dynamic Ntwrk, Topics in Biology. (1-3, no limit)
Maximum of 4 hours credited t |
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y****d
发帖数: 432 | 12 【7】【Springer】GTM美国研究生数学书籍全集
LIST：
1 Introduction to Axiomatic Set Theory, Gaisi Takeuti, W. M. Zaring
2 Measure and Category, John C. Oxtoby
3 Topological Vector Spaces, H.H. Schaefer, M.P. Wolff
4 A Course in Homological Algebra, Peter Hilton, Urs Stammbach
5 Categories for the Working Mathematician, Saunders Mac Lane
6 Projective Planes, Hughes, Piper
7 A Course in Arithmetic, Jean-Pierre Serre
8 Axiomatic Set Theory, Gaisi Takeuti, Zaring
9 Introduction to Lie Algebras and Representation The... 阅读全帖 |
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c***z
发帖数: 6348 | 13 【 以下文字转载自 JobHunting 讨论区 】
发信人: Fractal (超维), 信区: JobHunting
标 题: big data software engineer或者data scientist 工作机会推荐
发信站: BBS 未名空间站 (Sat Aug 15 05:54:51 2015, 美东)
组里继续招人。除了data scientist(统计背景，或者ml/nlp背景）还在招人，最近big
data software engineer 方面需求增多，开始要招几个职位。如果有这方面工作经验
（Hadoop MR/Yarn, hive/pig, spark, architecture design) ，或者虽然相关经
验不多，但是至少熟悉Java/Scala/Python而且肯学习的，都可以试试。
现在南加，纽约，芝加哥，达拉斯都有位置。尤其是南加最近开始招人，欢迎来试试。
这个职位是consulting的性质，可能需要一定数量的travel。
我以前在这里发文推荐过，最后说明一下，希望应聘者应该是有一定工作经验，而且知
道自己想要什么的。有意者私信联系。... 阅读全帖 |
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w*******y
发帖数: 60932 | 14 Nuclear Dawn available on: steam (pc and mac)
Max & The Magic Marker available on: windows, mac, desura, steam (pc and
mac)
Fractal available on: windows, mac, desura, steam (pc and mac)
Super Crossfire available on: windows, mac, desura
Link:
http://www.indieroyale.com/
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b*****h
发帖数: 3386 | 16 A TA chart is a fractal art, LOL |
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l**t
发帖数: 10440 | 17 【 以下文字转载自 PDA 讨论区 】
发信人: lint (shitizen), 信区: PDA
标 题: Steve Jobs, 1996: "Good Artists Copy, Great Artists Steal"
发信站: BBS 未名空间站 (Tue Mar 2 20:36:51 2010, 美东)
Oh, hello! A trip to the YouTube wayback machine shows that 1996's Steve "
Great Artists Steal" Jobs might have taken issue with Steve Jobs 2010, and
his patent lawsuit firebombing of HTC. Irony!
The comment was made during a 1996 PBS documentary called "Triumph of the
Nerds," and looks a smidge hypocritical in light of today's events. A... 阅读全帖 |
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B******m
发帖数: 2643 | 18 个人的感觉，wavelet和fractal image compression可能有一点前途
我也是最近在开始看一些基础的文章，有一起可以互相帮忙：） |
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l***j
发帖数: 300 | 19 据说 Wavelet 和 fractal 的速度都比较慢，似乎对 video 不太合适。
但是Watermarking现在是比较热的。结合Watermarking 和Wavelet
应该可以做点什么。 |
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s*****o
发帖数: 49 | 20 fractal is another approach, I think it is a future compression,
it will win over those transform coding technique in future.
what we need is a breakthrough of math theory towards non-linear system. |
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l**p
发帖数: 474 | 21 what kind of image compression are you working on?
wavelet? fractal? |
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