First, get a perspective: Review the assignment in the syllabus and any handouts (1-2 minutes)Maybe you are not required to read some sections Survey the chapter (5-10 minutes)for how the content is organized; get the "big picture"This is not to…

The author has a course on web: http://brickisland.net/DDGSpring2016/ It has more reading assignments and sliders which are good for you to understand ddg. ------------------------------------------------------------- DISCRETE DIFFERENTIAL GEOMETRY :…

以word count为例,本地化运行模式(不需要安装zookeeper.storm集群),maven工程, pom.xml文件如下: <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0…

2.1 Storm基本概念 在运行一个Storm任务之前,需要了解一些概念: Topologies Streams Spouts Bolts Stream groupings Reliability Tasks Workers Configuration Storm集群和Hadoop集群表面上看很类似.但是Hadoop上运行的是MapReduce jobs,而在Storm上运行的是拓扑(topology),这两者之间是非常不一样的.一个关键的区别是: 一个MapReduce job最终会结束,…

(1) be waken  by    被什么吵醒 (2) wake up !           快醒醒 (3)  put the flames    /fleimz/                     灭火 (4) is there a floor ? 发大水了吗? (5) be plotted to do sth   密谋做某事 for example : They plotted to rob the bank,but failed (6) power bank  充电宝 (7)…

  http://www.ats.ucla.edu/stat/stata/faq/nested_tests.htm The likelihood ratio (lr) test, Wald test, and Lagrange multiplier test (sometimes called a score test) are commonly used to evaluate the difference between nested models. One model is conside…

本文将开始创建登录页面,首先创建该页面所需的一些自定义组件:做为登录按钮的自定义视图对象.在[RegLogin]组的名称上点击鼠标右键,打开右键菜单.[New File]->[Cocoa Touch Class]创建新文件[RegButton.swift]Name:RegButtonSubclass:ShadowViewLanguage:Swift import UIKit class RegButton: ShadowView { //给类添加一个按钮类型的属性 var bt : UIButt…

概念,见博客 Storm概念学习系列之stream grouping(流分组) Storm的stream grouping的Shuffle Grouping 它是随机分组,随机派发stream里面的tuple,保证polt的每个人物接收到的tuple数目相同.(它能实现较好的负载均衡) 如果工作中没有特殊要求,一般用Shuffle Grouping. 编写StormTopologyShufferGrouping.java package zhouls.bigdata.stormDemo; imp…

2.1 Storm基本概念 在运行一个Storm任务之前,需要了解一些概念: Topologies :[tə'pɑ:lədʒɪ]拓扑结构 Streams Spouts:[spaʊt]喷出; 喷射; 滔滔不绝地讲; 把…典当掉; Bolts:[bəʊlt]筛选; 囫囵吞下; (把门.窗等) 闩上; 突然说出,脱口说出; Stream groupings Reliability Tasks Workers Configuration supervisor:英[ˈsu:pəvaɪzə(r)]监督者,管…

概念,见博客 Storm概念学习系列之storm的定时任务 Storm的定时任务,分为两种实现方式,都是可以达到目的的. 我这里,分为StormTopologyTimer1.java   和  StormTopologyTimer2.java 编写代码StormTopologyTimer1.java 我这里,用的是shuffleGrouping方式.若大家不懂的话,见我下面的博客 Storm编程入门API系列之Storm的Topology的stream grouping //设置定时任务 con…