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book
数据分析之图算法: 基于Spark和Neo4j
by
Mark Needham
,
Amy E. Hodler
September 2020
Intermediate to advanced
213 pages
5h 25m
Chinese
Posts & Telecom Press
Content preview from
数据分析之图算法: 基于Spark和Neo4j
1
第
1
章
导论
图是计算机科学的一大主题,可用于抽象表示交通运输系统、人际交往网络和电
信网络。对于训练有素的程序员而言,能够用一种形式来对不同的结构建模是强
大的力量之源。
——《算法设计指南》
Steven S. Skiena
,石溪大学计算机科学杰出授课教授
当今紧迫的数据挑战在于厘清关系,而不仅仅是对离散数据制表。图技术及其分析方法为
用于研究、社会活动和商业解决方案的关联数据提供了强大的工具,举例如下:
•
对金融市场、信息技术服务等多种动态环境建模;
•
预测传染病的传播以及由此引发的服务延迟和中断;
•
查找用于机器学习的预测性特征,以打击金融犯罪;
•
发现针对个性化体验和推荐的模式。
随着数据之间的关联度日益增强,系统也越来越复杂,利用数据中丰富且不断演进的关系
变得非常重要。
本章将介绍图分析和图算法。在介绍图算法和解释图数据库与图处理之间的区别之前,首
先简要回顾图的起源。本章将探究现代数据的本质,揭示为何联系所含的信息要比用基本
统计方法发现的信息复杂得多,最后还会研究一些图分析用例。
1.1
何谓图
图的历史可以追溯到
1736
年,即欧拉解决“哥尼斯堡七桥”问题的那一年。“哥尼斯堡七
2
|
第
1
章
桥”问题是指,能否参观哥尼斯堡市里由
7
座桥连接的
4
个区域,而且每座桥只允许经过
一次。实际上这是不可能做到的。 ...
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Publisher Resources
ISBN: 9787115546678