function [U,center,result,w,obj_fcn]= fenlei(data) [data_n,in_n] = size(data) m= 2 ％ Exponent for U max_iter = 100 ％ Max. iteration min_impro =1e-5 ％ Min. improvement c=3 [center, U, obj_fcn] = fcm(data, c) for i=1:max_iter if F(U)>0.98 break else w_new=eye(in_n,in_n) center1=sum(center)/c a=center1(1)./center1 deta=center-center1(ones(c,1),:) w=sqrt(sum(deta.^2)).*a for j=1:in_n w_new(j,j)=w(j) end data1=data*w_new [center, U, obj_fcn] = fcm(data1, c) center=center./w(ones(c,1),:) obj_fcn=obj_fcn/sum(w.^2) end end display(i) result=zeros(1,data_n) U_=max(U) for i=1:data_n for j=1:c if U(j,i)==U_(i) result(i)=j continue end end end
標(biāo)簽： data function Exponent obj_fcn
上傳時(shí)間： 2013-12-18
上傳用戶：ynzfm
this is a code which can show data from the outside!
標(biāo)簽： outside which this code
上傳時(shí)間： 2016-12-16
上傳用戶：star_in_rain
Optimisation of the pilot-to-data power ratio in the wireless MIMO-OFDM system with low-complexity MMSE channel estimation
標(biāo)簽： low-complexity pilot-to-data Optimisation MIMO-OFDM
上傳時(shí)間： 2016-12-16
上傳用戶：66666
made by: kangkai data:2008.11.23 this one is used to test arm7 str71x. use a led to test GPIO. a---------P0.0 b---------P0.1 c---------P0.2 d---------P0.3 e---------P0.4 f---------P0.5 g---------P0.6 just run it and you will see the led to show 0-9 all the time.
標(biāo)簽： test kangkai made 2008
上傳時(shí)間： 2016-12-16
上傳用戶：moerwang
實(shí)現(xiàn)IDEA加密算法與解密算法 IDEA(International Data Encryption Algorithm)是瑞士的James Massey，Xuejia Lai等人提出的加密算法，在密碼學(xué)中屬于數(shù)據(jù)塊加密算法(Block Cipher)類。IDEA使用長(zhǎng)度為128bit的密鑰，數(shù)據(jù)塊大小為64bit。從理論上講，IDEA屬于“強(qiáng)”加密算法，至今還沒有出現(xiàn)對(duì)該算法的有效攻擊算法。
標(biāo)簽： IDEA International Encryption Algorithm
上傳時(shí)間： 2014-01-09
上傳用戶：yepeng139
Trees are natural structures for representing certain kinds of hierarchical data. A (rooted) tree consists of a set of nodes (or vertices) and a set of arcs (or edges).
標(biāo)簽： hierarchical representing structures natural
上傳時(shí)間： 2016-12-22
上傳用戶：siguazgb
論文 數(shù)據(jù)庫(kù)查詢 Processing Queries on Tree-Structured Data Efficiently
標(biāo)簽： Tree-Structured Efficiently Processing Queries
上傳時(shí)間： 2016-12-22
上傳用戶：windwolf2000
數(shù)據(jù)加密算法（Data Encryption Algorithm，DEA）的數(shù)據(jù)加密標(biāo)準(zhǔn)（Data Encryption Standard，DES）是規(guī)范的描述，它出自 IBM 的研究工作，并在 1997 年被美國(guó)政府正式采納。它很可能是使用最廣泛的秘鑰系統(tǒng)，特別是在保護(hù)金融數(shù)據(jù)的安全中，最初開發(fā)的 DES 是嵌入硬 件中的。通常，自動(dòng)取款機(jī)（Automated Teller Machine，ATM）都使用 DES。文件是DES代碼的VHDL描述
標(biāo)簽： Encryption Algorithm Data 數(shù)據(jù)加密
上傳時(shí)間： 2014-09-07
上傳用戶：ztj182002
measure through the cross-entropy of test data. In addition, we introduce two novel smoothing techniques, one a variation of Jelinek-Mercer smoothing and one a very simple linear interpolation technique, both of which outperform existing methods.
標(biāo)簽： cross-entropy introduce smoothing addition
上傳時(shí)間： 2014-01-06
上傳用戶：qilin
Generate trellis data of a rate-1/n convolutional encoder.卷積碼1/n的編碼器，注意生成的是非系統(tǒng)碼。
標(biāo)簽： convolutional Generate trellis encoder
上傳時(shí)間： 2014-12-20
上傳用戶：ghostparker
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