int value; int in=0;//入度 指入的数量 int out=0; //出度 指出的数量 list<node*> nexts; //以该节点为vertex (是from)他有多少个邻居和他相连,他能到达的点,如果是有向图就意味着他指向的点, 组成的集合 list<edge*> edges; //以该节点为vertex。是from点,他有多少条边的集合 //list是node...
Graph: classGraph(dict):def__init__(self, vs=[], es=[]):forvinvs: self.add_vertex(v)foreines: self.add_edge(e)# 必须全部的顶点添加完毕之后,才可以添加新的边进去defadd_vertex(self, v): self[v] = {}defadd_edge(self, e): v, w = e self[v][w] = e self[w][v] = e# ...
简单回路——除了第一个和最后一个顶点相同外,其余的顶点都不相同。 连通图(connected graph)——无向图中任意两个顶点都有路径(即都是连通的)。 非连通图——存在两个顶点之间没有路径,即不连通。有n个顶点,但只有小于n-1条边,一定是非连通图。 连通分量——无向图中的极大连通子图。连通图本身即是,而非...
层次化攻击路径图Graph(VERTEX,EDGE)是一个有向图的多重视图,包括脆弱性、主机层、安全域层攻击路径图。VERTEX是节点集,表示共记者在供给过程中经过的节点。EDGE是边集,表示节点之间的连接关系。在层次化的攻击路径图中,节点分为安全域,主机脆弱性等不同层次。有向边连接两个节点,表示攻击行为从一个安全域、主机...
Summary: In a graph $G$, a subset $S$ of $V$ is global vertex-edge dominating set if $S$ is vertex-edge dominating set in both $G$ and $\\overline G$. In t... S Chitra,R Sattanathan 被引量: 1发表: 2012年 Vertex-edge domination in graphs We establish that for any connected...
It is well known that in a graph, k(G)≤λ(G)≤δ(G), where and k(G),λ(G) denote the vertex connectivity, edge connectivity and the minimum degree of G, respectively. We show that in chordal graphs, ifλ(G)≠δ(G), thenλ(G)≥2k(G)-1. In contrast, in a general graph...
Let G = (V, E) be a connected graph and let W=(w1,…,wk) be an ordered subset of V. The k-vector r(v|W)=(d(v,w1),…,d(v,wk)) is called the metric representation of v with respect to W. The set W is a resolving set of G if r(u|W) = r(v|W) implies u = ...
点vertex、边缘edge、路径path解释 for v,e,p in any/outbound/inbound id edges filter v.name == '维恩' and e._id not in [*] return p 1 2 3 id 为顶点vertex,位于collection中的一条数据, edges 为edge表可以是单表也可以是多表,用’,'分开, v 为另一个顶点vertex,位于collection中的一条...
Edge random graphs are Erdos-Renyi random graphs, vertex random graphs are generalizations of geometric random graphs, and vertex-edge random graphs generalize both. The names of these three types of random graphs describe where the randomness in the models lies: in the edges, in the vertices, ...
Also, the edge-vertex degree of the edge e = uv, dvG(e), equals to the number of vertices of the union of the open neighborhood of u and v. In this paper, the vertex-edge connectivity index, v, and the edge-vertex connectivity index, e, of a graph G were introduced. These are...