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Matrices
斯坦福NLP笔记71 —— Term-Document Incidence
Matrices
这一节主要讲的是Term-Document矩阵的稀疏性(sparsity)考虑这样一个大的文本集collection:一共有N=100万篇文档,平均每篇文档包含一千个词,存下这些文档大约需要6GB的空间,这还好。但是当你要存下Term-Document矩阵的时候,文档集一共使用过的不同的词汇是50万,所以你的矩阵是:50万×100万,这是不可接受的。但由于这个矩阵非常稀疏,所以只存“1”就可以了。
陈清扬
·
2014-07-22 11:00
css3—matrix矩阵
原文链接:走走停停看看demo:http://peterned.home.xs4all.nl/
matrices
/#1.282,-0.010,-0.273,0.801,51.793,-103.582http
zhangzhaoaaa
·
2014-07-21 21:00
Matrix
css3—matrix矩阵
原文链接:走走停停看看demo:http://peterned.home.xs4all.nl/
matrices
/#1.282,-0.010,-0.273,0.801,51.793,-103.582http
zhangzhaoaaa
·
2014-07-21 21:00
Matrix
css3—matrix矩阵
原文链接:走走停停看看demo:http://peterned.home.xs4all.nl/
matrices
/#1.282,-0.010,-0.273,0.801,51.793,-103.582http
zhangzhaoaaa
·
2014-07-21 21:00
Matrix
css3—matrix矩阵
原文链接:走走停停看看demo:http://peterned.home.xs4all.nl/
matrices
/#1.282,-0.010,-0.273,0.801,51.793,-103.582http
zhangzhaoaaa
·
2014-07-21 21:00
Matrix
css3—matrix矩阵
原文链接:走走停停看看demo:http://peterned.home.xs4all.nl/
matrices
/#1.282,-0.010,-0.273,0.801,51.793,-103.582http
zhangzhaoaaa
·
2014-07-21 21:00
Matrix
【九度】题目1001:A+B for
Matrices
题目1001:A+BforMatrices时间限制:1秒内存限制:32兆特殊判题:否提交:13336解决:5429题目描述: Thistime,youaresupposedtofindA+BwhereAandBaretwomatrices,andthencountthenumberofzerorowsandcolumns.输入: Theinputconsistsofseveraltestcas
u013027996
·
2014-07-16 17:00
java
C++
剑指offer
Codeforces初体验
每道题目都有标签,如greedy,math,
matrices
等等,可以点击相应的标签只做相关的题目。可惜我做了好几道之后才发现。这次解决的题目首次尝试,这次做的几个
caozhankui
·
2014-06-24 15:00
算法
String
codeforces
刷题
3D Math Primer for Game Programmers (
Matrices
)
Inthisarticle,Iwilldiscussmatricesandoperationsonmatrices.ItisassumedthatthereaderhassomeexperiencewithLinearAlgebra,vectors,operationsonvectors,andabasicunderstandingofmatrices.TableofContentsConvent
colddie
·
2014-05-09 20:00
Eigen初步1:初步体验Eigen库
Eigen初步1:初步体验Eigen库http://www.cnblogs.com/tornadomeet 前言:Eigen是一个线性算术的C++模板库,包括:vectors,
matrices
,开源以及相关算法
zhubo22
·
2014-05-06 16:00
投影矩阵的推导(Deriving Projection
Matrices
)
本文乃译文,原文地址为: http://www.codeguru.com/cpp/misc/misc/math/article.php/c10123__1/Deriving-Projection-
Matrices
.htm
zhanghua1816
·
2014-04-07 18:00
图形学
投影矩阵
正交矩阵
透视投影
正交投影
透视矩阵
对称矩阵(Symmetric
Matrices
)
如果矩阵满足,则矩阵P称为对称矩阵,对称矩阵有很多优秀的属性,可以说是最重要的矩阵。1.对称矩阵的对角化如果一个矩阵有n个线性无关的特征向量,则矩阵是可对角化的,矩阵可表示成,相应的。因为,很有可能A的逆等于A的转置。同样的,就可能有,这可发现S中的特征向量和其他的特征向量正交,后文会进行证明。我们把上的S成为正交矩阵Q,Q满足,Q中的每一个列向量为单位特征向量。每一个对阵矩阵都可以被分解成:2.
Daniel_djf
·
2014-03-26 19:00
对称矩阵
对角化
投影矩阵
谱分解
Camshift跟踪(上)
rgba.rows, rgba.cols, CV_8UC3 ); Mat alpha( rgba.rows, rgba.cols, CV_8UC1 ); // forming an array of
matrices
xiaozz_m608c
·
2014-03-21 16:00
Three
matrices
B.Threematricestimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputChubbyYangisstudyinglinearequationsrightnow.Hecameupwithaniceproblem.Intheproblemyouaregivenan
u013015642
·
2014-02-20 21:00
题目1001:A+B for
Matrices
#include #include usingnamespacestd; inta[15][15]; intb[15][15]; intc[15][15]; intres[100]; intInx=0; introws,columns; intmain() { while(cin>>rows) { if(rows==0) break; cin>>columns; for(inti=0;i>a
liuguiyangnwpu
·
2014-02-19 21:00
OJ1001
复试机试题
Nineteen,BThree
matrices
1、http://codeforces.com/contest/393/problem/A题目:A.Nineteentimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputAlicelikesword"nineteen"verymuch.Shehasastringsandw
sdjzping
·
2014-02-19 10:00
CF#230 B题 Three
matrices
ChubbyYangisstudyinglinearequationsrightnow.Hecameupwithaniceproblem.Intheproblemyouaregivenan n × n matrix W,consistingofintegers,andyoushouldfindtwo n × n
matrices
u013013910
·
2014-02-18 23:00
编程
算法
C语言
An Intuitive Guide to Linear Algebra
AnIntuitiveGuidetoLinearAlgebraDespitetwolinearalgebraclasses,myknowledgeconsistedof“
Matrices
,determinants
samssm
·
2014-01-26 14:00
题目1001:A+B for
Matrices
题目描述: Thistime,youaresupposedtofindA+BwhereAandBaretwomatrices,andthencountthenumberofzerorowsandcolumns.输入: Theinputconsistsofseveraltestcases,eachstartswithapairofpositiveintegersMandN(≤10)which
zxdfc
·
2013-10-08 22:00
Strassen's Subcubic Matrix Multiplication Algorithm
Considermultiplyingtwo2x2
matrices
,asfollows:AB*EF=AE+BGAF+BH CDGHCE+DGCF+DH Theobviouswaytocomputetherightsideisjusttodothe8multipliesand4additions.Butimaginemultipliesarealotmoreexpensivethanaddition
Qxietingwen
·
2013-09-24 09:00
九度OnlineJudge之1001:A+B for
Matrices
题目描述: Thistime,youaresupposedtofindA+BwhereAandBaretwomatrices,andthencountthenumberofzerorowsandcolumns.输入: Theinputconsistsofseveraltestcases,eachstartswithapairofpositiveintegersMandN(≤10)which
·
2013-08-14 22:00
C++
九度机试题
关于矩阵和图形学变换
Transformation_matrixhttp://www.reddit.com/r/programming/comments/1ejqr0/guide_to_using_affine_transformation_
matrices
_to
JoyerHuang_悦
·
2013-07-08 20:51
3D/图形学
关于矩阵和图形学变换
Transformation_matrixhttp://www.reddit.com/r/programming/comments/1ejqr0/guide_to_using_affine_transformation_
matrices
_to
JoyerHuang_悦
·
2013-07-08 20:51
3D/图形学
关于矩阵和图形学变换
Transformation_matrixhttp://www.reddit.com/r/programming/comments/1ejqr0/guide_to_using_affine_transformation_
matrices
_to
DelphiNew
·
2013-07-08 20:00
CVPR2013+kernel methods on Riemannian manifold of SPD
Matrices
KernelmethodsontheRiemannianmanifoldofsymmetricpositivedefinitematrices既然入选poster,想必有些亮点,下载细读之~ SPD(symetricpositivedefinite)
matrices
yihaizhiyan
·
2013-06-18 19:00
题目1001:A+B for
Matrices
时间限制:1秒内存限制:32兆特殊判题:否提交:8897解决:3653题目描述: Thistime,youaresupposedtofindA+BwhereAandBaretwomatrices,andthencountthenumberofzerorowsandcolumns.输入: Theinputconsistsofseveraltestcases,eachstartswithap
hnuzengchao
·
2013-06-08 18:00
九度——题目1001:A+B for
Matrices
题目描述: Thistime,youaresupposedtofindA+BwhereAandBaretwomatrices,andthencountthenumberofzerorowsandcolumns.输入: Theinputconsistsofseveraltestcases,eachstartswithapairofpositiveintegersMandN(≤10)which
wangchangshuai0010
·
2013-03-05 18:00
题目1001:A+B for
Matrices
题目描述:Thistime,youaresupposedtofindA+BwhereAandBaretwomatrices,andthencountthenumberofzerorowsandcolumns.输入:Theinputconsistsofseveraltestcases,eachstartswithapairofpositiveintegersMandN(≤10)whicharethe
chownwin
·
2013-02-28 11:03
题目1001:A+B for
Matrices
题目描述:Thistime,youaresupposedtofindA+BwhereAandBaretwomatrices,andthencountthenumberofzerorowsandcolumns.输入:Theinputconsistsofseveraltestcases,eachstartswithapairofpositiveintegersMandN(≤10)whicharethe
chownwin
·
2013-02-28 11:03
MATLAB 主要函数指令表(四)
4 基本矩阵函数和操作(Elementary
matrices
and matrix manipulation)4.1 基本矩阵(Elementary
matrices
)eye 单位阵linspace
jianxia_wzx
·
2013-01-21 18:00
投影矩阵的推导
cbbcf213c4b5c0f5ddeeca2c本文乃译文,原文地址为http://www.codeguru.com/cpp/misc/misc/math/article.php/c10123__1/Deriving-Projection-
Matrices
.htm
jiexuan357
·
2012-10-25 14:00
Optimal BST
a1,a2,...,anKey(ak)=akProbabilityofaccessingitemakisknowninadvanceandisP(ak)Thelistisorderedbykeys,a1
matrices
jiyanfeng1
·
2012-10-18 06:00
Algorithm
list
tree
search
Access
pair
DirectX 9.0 C++ 教程 关于Perspective projection,
Matrices
,摄像头,旋转
效果图:对上面这张gif图片是如何制作感兴趣?看截取视频,然后制成gif教程1.坐标系 默认情况下,Direct3D使用的是左手坐标系。这意味着虚拟3D网格上的每个正坐标远离观察者的方向。例如,Z轴的正坐标是冲向屏幕里面的,Y轴的正坐标是向上的,而X轴的正坐标是向右的。这里提下OpenGL使用的是右手坐标系,Z轴的正坐标是冲向屏幕外面的。X轴和Y轴是一样的。2.先介绍下Projection,即投射
fox64194167
·
2012-10-14 15:00
矩阵与变换
Direct3D中使用矩阵(
matrices
)来定义世界(world),视(view)和投影变换(projectiontransformation)。
TXH0001
·
2012-09-03 16:00
float
图形
transformation
Direct3D
translation
concatenation
九度1001 A+B for
Matrices
/********************************* *日期:2012-6-23 *作者:SJF0115 *题号:九度1001 *题目:A+BforMatrices *结果:AC *题意: *总结: **********************************/ #include intmain(){ intM,N; intMatrices[11][11]; while(s
SJF0115
·
2012-06-23 18:00
ini
Hadamard Product
Hadamardproduct(
matrices
)Inmathematics,theHadamardproductisabinaryoperationthattakestwomatricesofthesamedimensions
蒙面考拉
·
2012-05-11 09:00
du
Matlab------------命令大全2
转载:http://blog.csdn.net/yf210yf/article/details/74729844 基本矩阵函数和操作(Elementary
matrices
and matrix manipulation
yf210yf
·
2012-04-18 12:00
1001 A+B for
Matrices
题目描述: Thistime,youaresupposedtofindA+BwhereAandBaretwomatrices,andthencountthenumberofzerorowsandcolumns.输入: Theinputconsistsofseveraltestcases,eachstartswithapairofpositiveintegersMandN(≤10)which
jj12345jj198999
·
2012-02-29 15:00
[link]Useful Libraries
[1]AC++templatelibraryforlinearalgebra:
matrices
,vectors,numericalsolvers,andrelatedalgorithms:http://
niexiao2008
·
2012-02-27 18:00
DirectX 图形接口指南
在
Matrices
例程呈递几何物体之前,它调用程序自定义函数SetupMatric
wxl1986622
·
2012-02-03 09:00
Microsoft
图形
Matrix
tutorials
transformation
Direct3D
转:投影矩阵的推导
ebe924cbcbf6fb28f9dc617b.html本文乃译文,原文地址为http://www.codeguru.com/cpp/misc/misc/math/article.php/c10123__1/Deriving-Projection-
Matrices
.htm
niomaa
·
2012-01-31 09:00
Hadamard and Kronecker product
YandX“圈里面一个叉”YaretheHadamardandKroneckerproductofmatriceshttp://en.wikipedia.org/wiki/Hadamard_product_(
matrices
xyqzki
·
2012-01-09 10:00
quick-R
workspace.htmlTheWorkspaceTheworkspaceisyourcurrentRworkingenvironmentandincludesanyuser-definedobjects(vectors,
matrices
·
2011-12-05 13:00
qui
lsa cosine R
cosine{lsa}RDocumentationCosineMeasure(
Matrices
)DescriptionCalculatesthecosinemeasurebetweentwovectorsorbetweenallcolumnvectorsofamatrix.Usagecosine
·
2011-12-01 15:00
OS
通过注册OnTouchListener,来实现多点触控
public class Main extends Activity implements OnTouchListener { // These
matrices
will be used to move
AndLi
·
2011-10-15 09:00
listener
《
Matrices
for 3D applications - View transformation》翻译
《Matricesfor3Dapplications-Viewtransformation》翻译原文链接:http://knol.google.com/k/
matrices
-for-3d-applications-view-transformation
Jerry's unreal world
·
2011-05-30 13:00
Matlab中的括号()[]{}
[] 中括号用来构建向量(Vectors)或者是矩阵(
Matrices
)。如[6.99.64sqrt(-1)]就是一个有三个元素的向量。
jayghost
·
2011-04-26 13:00
matlab
FFT 函数 MATLAB
For%
matrices
, the FFT operation is applied to each column. For N-D% &n
baitai
·
2011-04-01 15:00
J#
matlab
[译] - 投影矩阵的推导
译]-投影矩阵的推导原帖地址:http://www.codeguru.com/cpp/misc/misc/math/article.php/c10123__1/Deriving-Projection-
Matrices
.htm
dotnet90
·
2011-01-16 13:00
How MATLAB Stores Sparse
Matrices
Tounderstandwhytheaboveexamplesaresoslow,youneedtounderstandhowMATLABstoresitssparsematrices.Ann-by-nMATLABsparsematrixisstoredasthreearrays;I'llcallthem p, i,and x.Thesethreearraysarenotdirectlyac
zhuliting
·
2011-01-06 14:00
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