基于地名互现的城市联系强度研究——以湖北省为例

基于网页地名互现数可以分析地理实体之间的相关性。两个地理位置所对应的地名的互现网页次数越多意味着它们之间的相关性越强。对湖北省各市之间的互现数和拓扑距离进行分析,结果表明:①空间位置相近的市具有更高的互现相似性并有更多的互现网页数;②地名互现的频率具有幂律指数为0.2的距离衰减效应,距离摩擦力要比实际生活中要弱得多。所提出的方法为文本的地名消歧、探究城市联系强度等研究提供了新的思路。

A Study on the Strength of Urban Connection Based on Toponym Co-occurrences:A Case Study of Hubei Province

The relatedness between geographical entities can be analyzed based on the co-occurrences of their name on web pages.The greater the number of co-occurrences of two geographical locations implies a stronger the correlation between them.We analyzed the number of co-occurrences and the topological distances among all cities.The results show that:①Cities with similar locations generally have similar co-occurrence patterns and have more co-occurrences web pages.②The frequency of mutual appearance shows a power-law distance decay effect of index of 0.2.The method proposed in this paper provides a new idea for eliminating the ambiguity of place names in the text and exploring the strength of city ties.