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mathematics
《 Discrete
Mathematics
and its Applications 》 离散数学及其应用 读书笔记 ( 三 )
Tree的作用:1BinarySearchTree2DecisionTree3Prefixcode(Huffman)1BinarySearchTree:简单来讲,就是先确立一个顶点,然后按大小,从小到大,从左到右的分配到这个顶点的两边。2DecisionTree在上一篇日志有写记录,大概目前的深度也就只能了解到这一层了。3Prefixcode这个应用蛮有意思的。根据某一个单词,字符出现的频率大小,
wujiandao
·
2015-05-17 22:00
binary
Mathematics
Genius(模拟计算器加减乘)
IntheMathematicalworldofDr.Ramanujam,everynewstudentmusthavetopassaexamtotaketheclassesofAdvance
mathematics
fromDr.Ramanujam
cacyth
·
2015-05-17 20:00
山东省ACM竞赛(2015)---H - Square Number
点这里^_^题目描述In
mathematics
,asquarenumberisanintegerthatisthesquareofaninteger.Inotherwords,itistheproductofsomeintegerwithitself.Forexample
qq978874169
·
2015-05-17 16:00
C++
UVa 1225 - Digit Counting
1225-DigitCountingTrungisboredwithhis
mathematics
homeworks.Hetakesapieceofchalkandstartswritingasequenceofconsecutiveintegersstartingwith1toN
a995549572
·
2015-05-15 22:00
ACM
uva
1225
Discrete
Mathematics
and Its applications - 离散数学及其应用 读书笔记 ( 一 )
《Discrete》一书中,讲到Bayes理论的第二个应用,就是求解得病概率的问题。摘抄原文如下:*Supposethatonepersonin100,000hasaparticularrarediseaseforwhichthereisafairlyaccuratediagnostictest.Thistestiscorrect99.0%ofthetimewhengiventoapersonse
wujiandao
·
2015-05-10 17:00
test
应用
Discrete
Mathematics
and Its applications - 离散数学及其应用 读书笔记 ( 二 )
《Discrete》书中关于BayesianSpamFilter的应用,中文可以翻译为“基于贝叶斯理论的垃圾邮件过滤器”先是一个简单的例子,基于单个单词的删选词,原文有个例子:Supposethatwehavefoundthattheword“Rolex”occursin250of2000messagesknowntobespamandin5of1000messagesknownnottobesp
wujiandao
·
2015-05-10 16:00
过滤器
SPAM
HDU 5223 GCD
ProblemDescriptionIn
mathematics
,thegreatestcommondivisor(gcd)oftwoormoreintegers,whenatleastoneofthemisnotzero
jtjy568805874
·
2015-05-09 22:00
HDU
data mining - 实用机器学习工具与技术 - 读书笔记( 二 )
参考了《Discrete
Mathematics
andItsapplications》(中文:《离散数学及其应用》)一书对Bayes定律的讲解
wujiandao
·
2015-05-09 17:00
技术
事件
Data
Hadoop背后的数学问题
The
mathematics
behindHadoop-basedsystems我希望一年前就知道这些。现在,用一些简单的数学公式就可以表述这些了。§为什么当处理能力加倍的时候工作流时间没有加倍?
hmily1988
·
2015-05-05 15:13
综合
[数学杂志]AML
Copied from: http://www.elsevier.com/journals/applied-
mathematics
-letters/0893-9659/guide-for-authors
·
2015-05-05 11:00
数学
LightOJ - 1234
3000MS Memory Limit: 32768KB 64bit IO Format: %lld & %llu Description In
mathematics
·
2015-05-03 21:00
li
【codechef】Arush Challenge(灵活题)
Arushwasnotalwayspoorat
Mathematics
buthisrecentperformanceshadnotbeenthatgoodandhehadlosthisconfidence.Nowhiselderbrotherwasdeterminedtobringbackhisconfidencebackin
Mathematics
.Sohemadeatrickyquestionan
cacyth
·
2015-05-02 22:00
POJ 2480 Longge's problem (欧拉函数+乘性函数)
Longge'sproblemTimeLimit: 1000MS MemoryLimit: 65536KTotalSubmissions: 7343 Accepted: 2422DescriptionLonggeisgoodat
mathematics
andhelikestothinkabouthardmathematicalproblemswhichwillbesolvedbysomegracef
u013068502
·
2015-04-25 10:00
数论
poj
Brain Teasers
Mathematics
,BrainteasersandTrees 1.Q:100层楼梯下楼,可以一步也可以两步,多少种下法?递归和非递归。
yuanhsh
·
2015-04-24 14:00
Brain Teasers
Mathematics
, Brain teasers and Trees 1. Q: 100层楼梯下楼,可以一步也可以两步,多少种下法?递归和非递归。
yuanhsh
·
2015-04-24 14:00
in
Brain Teasers
阅读更多
Mathematics
,BrainteasersandTrees1.Q:100层楼梯下楼,可以一步也可以两步,多少种下法?递归和非递归。
yuanhsh
·
2015-04-24 14:00
machine learning week7 学习笔记 SVM 习题解答
week7视频中,12-3-
Mathematics
BehindLargeMarginClassification(Optional)(20min)
BYR_jiandong
·
2015-04-19 21:30
机器学习
machine learning week7 学习笔记 SVM 习题解答
week7视频中,12-3-
Mathematics
BehindLargeMarginClassification(Optional)(20mi
lujiandong1
·
2015-04-19 21:00
读书笔记
learning
machine
[置顶] 【索引】 AOAPC I: Beginning Algorithm Contests -- Training Guide (Rujia Liu)
AOAPCI:BeginningAlgorithmContests--TrainingGuide(RujiaLiu)Chapter1.AlgorithmDesignChapter2.
Mathematics
Chapter3
kl28978113
·
2015-04-19 15:00
算法基础之微积分--线性代数--离散数学
-----------------------------------------------------微积分公开课:麻省理工学院:单变量微积分http://ocw.mit.edu/courses/
mathematics
Jackery_Shh
·
2015-04-09 11:00
算法
数学
离散数学
微积分
hdu4288 离线处理线段树
pid=4288ProblemDescriptionIn
mathematics
andcomputerscience,analgorithmdescribesasetofproceduresorinstructionsthatdefineaprocedure.Thetermhasbecomeincreasingpopular
u013573047
·
2015-04-06 21:00
sdut2168--Mathmen(贪心)
MathmenTimeLimit:1000MSMemorylimit:65536K题目描述Mathmenlove
mathematics
,andtheyliveonthenumberline.Allthemathmenspendalltheirtimeonsolvingmathematicalproblemsandprovingtheorems.Likehumenbeings
u013015642
·
2015-04-06 10:00
[Everyday
Mathematics
]20150306
在王高雄等《常微分方程(第三版)》习题 2.5 第 1 题第 (32) 小题: $$\bex \frac{\rd y}{\rd x}+\frac{1+xy^3}{1+x^3y}=0. \eex$$ 解答: $$\beex \bea 0&=(1+xy^3)\rd x+(1+x^3y)\rd y\\ &=\rd (x+y) +xy^3\rd x+x^3y\rd y\\
·
2015-04-01 12:00
Math
UVA - 103 - Stacking Boxes (动态规划)
3000MS MemoryLimit: Unknown 64bitIOFormat: %lld&%lluSubmit StatusDescriptionBackgroundSomeconceptsin
Mathematics
andComputerSciencearesimpleinoneortwodimensionsbutbecomemo
u014355480
·
2015-03-31 23:00
dp
ACM
uva
HDU 1104 Remainder
ProblemDescriptionCocoisacleverboy,whoisgoodat
mathematics
.However,heispuzzledbyadifficult
mathematics
problem.Theproblemis
jtjy568805874
·
2015-03-31 20:00
HDU
广搜
POJ 3243 Clever Y BSGS
: 65536KTotalSubmissions: 6861 Accepted: 1676DescriptionLittleYfindsthereisaveryinterestingformulain
mathematics
u012797220
·
2015-03-31 20:00
[Everyday
Mathematics
]20150305
设 $f\in C^2[0,1]$, $$\bex f(0)=-1,\quad f'(1)=3,\quad \int_0^1 xf''(x)\rd x=1. \eex$$ 试求 $f(1)$. 解答: $$\beex \bea 1&=\int_0^1 x\rd f'(x)\\ &=xf'(x)|_0^1-\int_0^1 f'(x)\rd x\\ &=f'
·
2015-03-31 14:00
Math
Mathematics
for Computer Graphics
Mathematics
forComputerGraphicsGregTurk,August1997"WhatmathshouldIlearninordertostudycomputergraphics?
seamanj
·
2015-03-31 09:00
山大工大联谊1007 combinatorial
mathematics
once more 【斯特灵数,贝尔数】
1007combinatorial
mathematics
oncemore description如果你对组合数学有所涉猎,你一定会对组合划分非常熟悉,那么问题来了:现在给你一个数集S的大小n,请告诉我将它划分为集合的方法总数
u014787301
·
2015-03-30 19:00
山大工大联谊1006 combinatorial
mathematics
1006combinatorial
mathematics
descriptionAsyouknow,shadow95isprettygoodatmaths,especiallycombinatorial
mathematics
.Now
u014787301
·
2015-03-30 18:00
String
ACM
hdu4403 暴力搜索
pid=4403ProblemDescriptionAoshuisverypopularamongprimaryschoolstudents.Itis
mathematics
,butmuchharderthanordinary
mathematics
forprimaryschoolstudents.TeacherLiuisan
u013573047
·
2015-03-29 11:00
符号积分用的Rubi软件包(Mathematica下的Package)
http://www.apmaths.uwo.ca/~arich/Rule-based
Mathematics
SymbolicIntegrationRulesCraftedbyAlbertD.Rich,AppliedLogicianIfsystematicallyapplied
stereohomology
·
2015-03-20 13:00
符号计算
Mathematica
Maple
Maple 18和Mathematica 9的比较[百度Maple贴吧网友转发-东京大学某教授观点]
但·
mathematics
stereohomology
·
2015-03-16 13:00
Mathematica
Maple
算法基础之微积分--线性代数--离散数学
-----------------------------------------------------微积分公开课:麻省理工学院:单变量微积分http://ocw.mit.edu/courses/
mathematics
gggg_ggg
·
2015-03-13 10:00
算法
数学
离散数学
微积分
Goldbach`s Conjecture 【素数线性筛法】
lluSubmit StatusDescriptionGoldbach'sconjectureisoneoftheoldestunsolvedproblemsinnumbertheoryandinallof
mathematics
u014427196
·
2015-03-09 23:00
【原创】开源Math.NET基础数学类库使用(08)C#进行数值积分
我们也知道像Matlab,
Mathematics
等软件的积分求解功能非常高大上,不仅能求解定积分,还能求解不定积分,甚至多重积分等等。而Math.NET这个组件没有如此高级
DotNet开源大本营
·
2015-03-05 08:00
1012. The Best Rank (25)
ToevaluatetheperformanceofourfirstyearCSmajoredstudents,weconsidertheirgradesofthreecoursesonly:C-CProgrammingLanguage,M-
Mathematics
oFengWuYu1
·
2015-02-25 20:00
C++
pat
UVa 103 Stacking Boxes
BackgroundSomeconceptsin
Mathematics
andComputerSciencearesimpleinoneortwodimensionsbutbecomemorecomplexwhenextendedtoarbitrarydimensions.Considersolvingdifferentialequationsinseveraldimensionsandanalyz
jtjy568805874
·
2015-02-17 20:00
uva
动规
猜帽子问题
今天继续看之前提到的杂志《Recreational
Mathematics
》,今天看的这篇文章的是关于猜帽子的。
magicnumber
·
2015-02-06 21:00
数学
逻辑
棋盘覆盖和Hall's marriage theorem
发现了这么一本杂志不知道什么时候下下来的叫做《Recreational
Mathematics
》,花了半天时间才找到我是在这里下的,然后看了一篇《TheMutilatedChessBoard》,就顺手写下来吧
magicnumber
·
2015-02-05 21:00
覆盖
数学
棋盘
完美匹配
hdu4288 Coder 线段树
MemoryLimit:32768/32768K(Java/Others)TotalSubmission(s):3567 AcceptedSubmission(s):1390ProblemDescriptionIn
mathematics
andcomputerscience
corncsd
·
2015-02-05 18:00
UVAOJ 12096 The SetStack Computer(STL的运用)
12096TheSetStackComputerBackgroundfromWikipedia:Settheoryisabranchof
mathematics
createdprincipallybytheGermanmathe-maticianGeorgCantorattheendofthe19thcentury.Initiallycontroversial
kalilili
·
2015-02-02 18:00
数数字(Digit Counting)
DigitCountingTimelimit:3.000secondsTrungisboredwithhis
mathematics
homeworks.Hetakesapieceofchalkandstartswritingasequenceofconsecutiveintegersstartingwith1toN
qq_15096707
·
2015-02-02 10:00
java
uva
Counting
digit
数数字
高数重要极限证明原创中英文对照版
ImportantLimit作者 赵天宇Author:PandaZhao 我今天想在这里证明高等数学中的一个重要极限:TodayIwanttoproveanimportantlimitofhigher
mathematics
bymyself
熊猫爱可可
·
2015-01-31 00:53
二项式
高等数学
Numbers
higher
evidence
[Everyday
Mathematics
]20150211 Carlson inequality
$$\bex a_n\geq 0\ra \vsm{n}a_n\leq \sqrt{\pi}\sex{\vsm{n}a_n^2}^{1/4} \sex{\vsm{n}n^2a_n^2}^{1/4}, \eex$$ $$\bex \int_0^\infty |f(x)|\rd x \leq\sqrt{\pi}\sex{ \int_0^\infty f^2(x)\rd x }^{1/4}\sex{ \i
·
2015-01-19 09:00
Math
[Everyday
Mathematics
]20150209
设 $f$ 在区间 $I$ 上三阶可导, $f'\neq 0$, 则可定义 $f$ 的 Schwarz 导数: $$\bex S(f,x)=\frac{f'''(x)}{f'(x)}-\frac{3}{2}\sez{\frac{f''(x)}{f'(x)}}^2 =\sez{\frac{f''(x)}{f'(x)}}'-\frac{1}{2}\sez{\frac{f''(x)}{f'(x)}}^2
·
2015-01-15 14:00
Math
[Everyday
Mathematics
]20150206
$$\bex \sen{fg}_{L^1}\leq C\sen{f}_{L^{r,\al}}\sen{g}_{L^{r',\al'}}, \eex$$ 其中 $$\bex f\in L^{r,\al},\quad g\in L^{r',\al'},\quad \frac{1}{r}+\frac{1}{r'}=1=\frac{1}{\al}+\frac{1}{\al'},\quad 1<r&l
·
2015-01-15 14:00
Math
(5113)HDU
www.cnblogs.com/fraud,这篇博客学习借鉴来的·····,知识产权很重要,我写博客的目的只是提升自己···做个笔记用···BlackAndWhiteProblemDescriptionIn
mathematics
wang57389675
·
2015-01-14 15:00
[Everyday
Mathematics
]20150205
设 $\phi:[k_0,\infty)\to[0,\infty)$ 是有界递减函数, 并且 $$\bex \phi(k)\leq \sex{\frac{A}{h-k}}^\al\phi(h)^\beta,\quad k>h\geq k_0, \eex$$ 其中 $A,\al>0$, $\beta>1$. 试证: $$\bex \phi(k_0+d)=0, \eex$$ 其中 $
·
2015-01-14 11:00
Math
[Everyday
Mathematics
]20150204
设 $k_0>0$, $\phi:[k_0,\infty)\to[0,\infty)$ 是有界递减函数, 并且 $$\bex \phi(k)\leq \frac{A}{(k-h)^\al}\phi(h)^\beta,\quad k>h>k_0, \eex$$ 其中 $A,\al>0$, $0<\beta<1$. 试证: $$\bex \phi(k)\leq \f
·
2015-01-14 11:00
Math
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