neo4j

百度技术沙龙第34期 机器学习之多媒体方向的思考

穿精又带淫゛_ 提交于 2020-04-08 01:56:00
本文作者:HelloDeveloper 在 1 月 12 日由@百度主办、@InfoQ负责策划组织和实施的第 34 期百度技术沙龙活动上,来自百度的多媒体部副总监余凯和简网联合创始人、CTO 谷文栋分享了在机器学习方面的的经验与实践,话题涉及“深度学习进展以及在语音图像中的应用”和“个性化阅读产品实践”等。本文将对他们各自的分享做下简单的回顾,同时提供相关资料的下载。 本次沙龙是 2013 年的第一次沙龙活动,同时作为 2012 年的年度回顾,InfoQ 中文站创始人兼 CEO 霍泰稳阐述了 InfoQ 的宗旨以及在 2012 和 2013 年的变化。随后分享了《架构师》月刊在 2012 年的专题内容并展望了 2013 年的技术热点。在谈到媒体的责任时,他认为“不在于预测的有多准,而在于记录的有多真实”。最后他强调了 InfoQ 对于移动开发、云计算、大数据、HTML5 和 Node.js 等方面的关注。 本次沙龙还选出了 2013 年的 6 位百度技术沙龙观察员:邵磊、老杨、张俊林、石川、邓侃、沈强。在新的一年里他们将会搜集开发者的反馈,分享精彩观点,将更多精彩的内容呈献给大家。 主题一:深度学习进展以及在语音图像中的应用 百度的多媒体部副总监余凯第一个为大家分享,他谈到自从 80 年代起,以神经网络、支持向量机等为代表的浅层分类模型有了很大的进展,随后以 Kernel

How to get all parent nodes of a particular node based on ID

谁都会走 提交于 2020-04-07 08:03:12
问题 I want to fetch all 3rd level nodes(4,5,6 and 7 in below pic) and its relationships along with its parent node details In the below example: If I send ID : 7 then I should get node info of 3 and `1 If I send ID : 4 then I should get node info of 2 and `1 How can I get parent node details? Please help EDIT: I am trying query to get nodes, edges and immediate parent details. Nodes and edges I am getting but with parent I am getting big list of nodes. Not sure why Match (n)-[r]-() OPTIONAL MATCH

How to use transactional Cypher HTTP endpoint and new REST API Authentication and Authorization in Neo4j 2.2.x with JQuery

非 Y 不嫁゛ 提交于 2020-03-25 18:53:42
问题 I'm looking for a code example creating a REST POST request with JQuery on Neo4j 2.2.x Transactional Cypher HTTP endpoint with new REST API Authentication and Authorization parameters. Before Neo4j 2.2 version I used the Legacy Cypher HTTP endpoint (which is deprecated) to execute Cypher queries with the following code: $.post("http://localhost:7474/db/data/transaction/commit", { "query": query, "params": {} }, "json")... But I would like to move to 2.2 and use the transactional endpoint with

图形数据库Neo4j基本了解

二次信任 提交于 2020-03-24 14:30:06
3 月,跳不动了?>>> 原文出处 : http://www.yund.tech/zdetail.html?type=1&id=f519df57f29b22863d2a6a79326bd22b 作者 :jstarseven 在深入学习图形数据库之前,首先理解属性图的基本概念。一个属性图是由顶点(Vertex),边(Edge),标签(Lable),关系类型和属性(Property)组成的有向图。顶点也称作节点(Node),边也称作关系(Relationship);在图形中,节点和关系是最重要的实体,所有的节点是独立存在的,为节点设置标签,那么拥有相同标签的节点属于一个分组,一个集合;关系通过关系类型来分组,类型相同的关系属于同一个集合。关系是有向的,关系的两端是起始节点和结束节点,通过有向的箭头来标识方向,节点之间的双向关系通过两个方向相反的关系来标识。节点可有零个,一个或多个标签,但是关系必须设置关系类型,并且只能设置一个关系类型。Neo4j图形数据库的查询语言是Cypher,用于操作属性图,是图形语言中事实上的标准。 一、图形数据库的基本概念 Neo4j创建的图(Graph)基于属性图模型,在该模型中,每个实体都有ID(Identity)唯一标识,每个节点由标签(Lable)分组,每个关系都有一个唯一的类型,属性图模型的基本概念有: 实体(Entity) 是指节点(Node

How do I set up a Spring Data Neo4j integration test with JUnit 5 (in Kotlin)?

雨燕双飞 提交于 2020-03-16 08:10:13
问题 Most examples around the Web for doing Spring integration tests with Neo4j are still on JUnit 4, and use the Neo4jRule. How do we create a setup for Neo4j + Spring + JUnit 5? 回答1: If you are testing on embedded, please use the Test Harness with a simple Spring Configuration. Here are some examples: https://medium.com/neo4j/testing-your-neo4j-based-java-application-34bef487cc3c https://github.com/michael-simons/neo4j-sdn-ogm-tips/tree/master/examples/using-the-test-harness https://github.com

How do I set up a Spring Data Neo4j integration test with JUnit 5 (in Kotlin)?

让人想犯罪 __ 提交于 2020-03-16 08:08:10
问题 Most examples around the Web for doing Spring integration tests with Neo4j are still on JUnit 4, and use the Neo4jRule. How do we create a setup for Neo4j + Spring + JUnit 5? 回答1: If you are testing on embedded, please use the Test Harness with a simple Spring Configuration. Here are some examples: https://medium.com/neo4j/testing-your-neo4j-based-java-application-34bef487cc3c https://github.com/michael-simons/neo4j-sdn-ogm-tips/tree/master/examples/using-the-test-harness https://github.com

How to create nodes and relationships from csv in neo4j

一世执手 提交于 2020-03-12 05:59:57
问题 I am loading a csv file with cypher query. The csv file is having 4 columns. 2 for columns and 2 for tables as shown below. I want to create 2 types of nodes database and tables from those 4 columns. How can I create unique nodes for database and columns and to have relationships between them? As per logisima's answer I added below query to create nodes for database and columns and added relationships. But there is some duplication in nodes. `LOAD CSV WITH HEADERS FROM 'file:///test1.csv' AS

neo4j与spark 的结合

自古美人都是妖i 提交于 2020-03-07 23:50:31
spark 是用来 做 图计算的,Graphx,其实 spark 和Neo4j 有交叉点,在图论算法上都可以用上 使用 neo4j 和 spark 结合 1.首先 如果你的neo4j 是需要账号密码登录的话,你就应该 在项目中配置一下,两三种方式 import org.apache.spark.rdd.RDD import org.apache.spark.sql.{SQLContext, SparkSession} import org.apache.spark.sql.types.{StringType, StructField, StructType} import org.apache.spark.{SparkConf, SparkContext} import org.neo4j.spark.Neo4j import org.neo4j.spark._ import collection.JavaConversions._ val spark=SparkSession.builder().appName("play") .master("local[*]") .config("spark.neo4j.bolt.url", "bolt://localhost:7687") .config("spark.neo4j.bolt.user", "neo4j") .config(

Cant connect into neo4j web pannel via docker container launched with docker-compose

送分小仙女□ 提交于 2020-03-05 05:00:53
问题 Over my docker-compose.yml I have inserted the following entries: version: '2' services: neo4j_dev: image: 'neo4j' ports: - '7474:7474' - '7687:7487' volumes: - './docker-volumes/neo4j_dev/data:/data' environment: NEO4J_AUTH: 'neo4j/somepasswdthatisnotmyrealpassword' Now when I visit over my browser http://0.0.0.0:7474/browser/ but somehow when I enter the following credentials it fails to login: host: bolt://localhost:7687 user: neo4j password: somepasswdthatisnotmyrealpassword But it fails

Cant connect into neo4j web pannel via docker container launched with docker-compose

时光毁灭记忆、已成空白 提交于 2020-03-05 04:58:08
问题 Over my docker-compose.yml I have inserted the following entries: version: '2' services: neo4j_dev: image: 'neo4j' ports: - '7474:7474' - '7687:7487' volumes: - './docker-volumes/neo4j_dev/data:/data' environment: NEO4J_AUTH: 'neo4j/somepasswdthatisnotmyrealpassword' Now when I visit over my browser http://0.0.0.0:7474/browser/ but somehow when I enter the following credentials it fails to login: host: bolt://localhost:7687 user: neo4j password: somepasswdthatisnotmyrealpassword But it fails