图书情报知识 ›› 2014, Vol. 0 ›› Issue (3): 80-86.doi: 10.13366/j.dik.2014.03.080

• 情报、信息与共享 • 上一篇    下一篇

网络搜索关键词“稳定—突变”特征的识别——基于关键词集中度变化率的分析

卢洪涛,李纲   

Stable-mutation Characteristic Identification of Web Search Keywords——Based on Analysis of Keyword Concentration Change Ratio

摘要:

本文主要讨论了关键词集中度变化率对面向信息分析与预测的网络搜索关键词的“稳定—突变”特征的有效识别效果。文章首先介绍什么是关键词“稳定—突变”特征及其意义;其次介绍了关键词集中度变化率的定义以及在关键词选择中的作用;最后通过Ginsberg的流感流行监测关键词的实例分析,说明了关键词集中度变化率对识别关键词“稳定—突变”特征的有效性。

关键词: 网络搜索, 关键词, 集中度变化率

Abstract:

This paper discusses the keyword concentration change ratio to identify the stablemutation feature of Web search keywords for information analysis and prediction. At first, this paper introduces what is the keyword stablemutation feature and its significance. Secondly, it describes the definition of keyword concentration change ratio and its function for identifying keyword stablemutation feature. Finally, an instance of Ginsberg’s influenza keyword shows that keyword concentration change ratio can identify the keyword stablemutation feature effectively.

Keywords: Web search, Keyword, Concentration change ratio