题目:Givennnodes labeled from0ton - 1and a list of undirected edges (each edge is a pair of nodes), write a function to check whether these edges make u...
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其他好文 时间:
2015-12-04 12:32:37
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266
用户-项目评分矩阵可以用来建立一个二分图(Bipartite Graph),图中节点分别表示用户和项目,边的权重为用户对项目的评分。可以分析二分图的结构,进而得出对用户的项目推荐。 用户和项目是推荐系统的两个最重要的基本组成部分,可以设用户集为U,项目集为I。 下面依托上表 2.1 所示的用户...
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其他好文 时间:
2015-12-03 21:07:08
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141
请找出无向图中相连要素的个数。图中的每个节点包含其邻居的 1 个标签和 1 个列表。(一个无向图的相连节点(或节点)是一个子图,其中任意两个顶点通过路径相连,且不与超级图中的其它顶点相连。)样例给定图:A------B C \ | | \ | | \ | | ...
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其他好文 时间:
2015-12-03 02:08:31
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234
A Bayesian network is :a) A directed acyclic graph (DAG) G, which nodes represent the variables X1,...,Xn. (有向无环图,每个结点表示变量)b) for each node Xi, a CPD ...
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Web程序 时间:
2015-12-02 20:26:48
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177
try this if ubuntu version is >= 14.04sudo apt-get updatesudo apt-get upgradesudo apt-get -y install expatsudo apt-get -y install sparsehashsudo apt-g...
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其他好文 时间:
2015-12-02 14:24:12
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230
题目连接https://leetcode.com/problems/minimum-height-trees/Minimum Height TreesDescriptionFor a undirected graph with tree characteristics, we can choose ...
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其他好文 时间:
2015-12-01 21:01:32
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342
#include #include #include using namespace std;using namespace Eigen;// 图形类 class graph{private: string name; int pointNumber; //存坐标对...
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其他好文 时间:
2015-11-30 22:06:10
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257
Minimum Height TreesFor a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Amon...
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编程语言 时间:
2015-11-29 21:19:38
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256
Problem DescriptionIn mathematics, and more specifically in graph theory, a tree is an undirected graph in which any two nodes are connected by exactl...
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其他好文 时间:
2015-11-27 21:54:29
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285
For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible roote...
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其他好文 时间:
2015-11-27 14:34:20
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337