JGraphT

I try to show graphs in JGraphx. Everything is fine as long as I use directed Graphs, but when I try to show an undirected one, its shown with direction. The code is from the demo of jgrapht. package org.jgrapht.demo; import com.mxgraph.layout.*; import com.mxgraph.swing.*; import java.awt.*; import java.nio.file.FileSystem; import javax.swing.*; import org.jgrapht.*; import org.jgrapht.ext.*; import org.jgrapht.graph.*; /** * A demo applet that shows how to use JGraphX to visualize JGraphT graphs. * Applet based on JGraphAdapterDemo. * * @since July 9, 2013 */ public class JGraphXAdapterDemo

在 了解数据结构图 （graph） 的学习中，我们了解到了图的基本概念，并通过学习 迪杰斯特拉 ( Dijkstra ) 最短路径算法 和 DFS(深度优先遍历) 以及 BFS(广度优先遍历) ，可以了解到怎么求图中的最短路径。为什么学习图呢？在调度任务中，大量使用了图的概念，处理任务的依赖关系，所以，为了彻底弄懂原理，有必要系统粗略地学习下。除此之外，在机器学习中例如知识图谱、推荐系统等也大量使用了图。 接下来，我们通过 jgrapht 库，对图进行操作。 jgrapht 库提供了在 java 中进行图运算的能力，开源地址：https://github.com/jgrapht/jgrapht 。下面我们将通过一些小栗子，学习该库的使用。 例子1：基本的API 在 图 中，有一些基本的概念，例如 顶点Vertex、边edge、度degree、有环、无环。如果不了解，可以在上面提到的文章中了解。好了，下面实操实操。 代码中，描述了下图所示中的有向图 @Test public void testOtherAPI() { String a = "A"; String b = "B"; String c = "C"; String d = "D"; String e = "E"; String f = "F"; // 构建图 Graph<String, DefaultEdge> g =

I am working on a project involving anaphora resolution via Hobbs algorithm. I have parsed my text using the Stanford parser, and now I would like to manipulate the nodes in order to implement my algorithm. At the moment, I don't understand how to: Access a node based on its POS tag (e.g. I need to start with a pronoun - how do I get all pronouns?). Use visitors. I'm a bit of a noob of Java, but in C++ I needed to implement a Visitor functor and then work on its hooks. I could not find much for the Stanford Parser's Tree structure though. Is that jgrapht? If it is, could you provide me with

I don't want to persist any data but still want to use Neo4j for it's graph traversal and algorithm capabilities. In an embedded database, I've configured cache_type = strong and after all the writes I set the transaction to failure. But my write speeds (node, relationship creation speeds) are a slow and this is becoming a big bottleneck in my process. So, the question is, can Neo4j be run without any persistence aspects to it at all and just as a pure API? I tried others like JGraphT but those don't have traversal mechanisms like the ones Neo4j provides. DNA As far as I know, Neo4J data

在 了解数据结构图 （graph） 的学习中，我们了解到了图的基本概念，并通过学习 迪杰斯特拉 ( Dijkstra ) 最短路径算法 和 DFS(深度优先遍历) 以及 BFS(广度优先遍历) ，可以了解到怎么求图中的最短路径。为什么学习图呢？在调度任务中，大量使用了图的概念，处理任务的依赖关系，所以，为了彻底弄懂原理，有必要系统粗略地学习下。除此之外，在机器学习中例如知识图谱、推荐系统等也大量使用了图。 接下来，我们通过 jgrapht 库，对图进行操作。 jgrapht 库提供了在 java 中进行图运算的能力，开源地址：https://github.com/jgrapht/jgrapht 。下面我们将通过一些小栗子，学习该库的使用。 例子1：基本的API 在 图 中，有一些基本的概念，例如 顶点Vertex、边edge、度degree、有环、无环。如果不了解，可以在上面提到的文章中了解。好了，下面实操实操。 代码中，描述了下图所示中的有向图 @Test public void testOtherAPI() { String a = "A"; String b = "B"; String c = "C"; String d = "D"; String e = "E"; String f = "F"; // 构建图 Graph<String, DefaultEdge> g =