基于UGC文本挖掘的城市旅游客流网络结构研究——以西安市为例

旅游流是旅游地理学研究的一项重要命题,理解游客的空间流动特征对城市旅游的发展有重要意义。通过对穷游网UGC文本数据的挖掘,依托图论理论构建了一种可以同时保留旅游客流的有向性与加权性的流网络结构描述方法,并对西安市区域层面与节点层面的旅游客流网络结构进行研究。结果表明:(1)城市旅游的客流存在明显的网络结构特征,客流网络结构主要由区域(节点)的中心程度决定;(2)城市旅游客流结构与旅游主体功能分区高度耦合;(3)区域(节点)主体功能的时空属性也是影响旅游客流结构的一个重要因素;(4)通过对区域(节点)净外向程度的分析,可以得到其旅游“集”“散”功能的偏重,可为具体区域的旅游发展提供借鉴与启示。

Research on Network Structure of Urban Tourist Flow Based on UGC Text Mining:A Case Study in Xi'an City

Tourism flow was an important proposition in the study of tourism geography.It was significant to understand the spatial flow characteristics of tourists for the development of urban tourism.There were still some problems in the research of tourism passenger flow network,such as artificially constructing spatial association and being limited by sociological system.Therefore,based on the data mining of UGC text,this study tried to build a method of describing the network structure of tourist flow,which can retain the directivity and weighting of tourist flow,and studied the network structure of tourist flow at the regional level and node level of Xi’an City.The results showed that:(1)There are obvious network structure characteristics of urban tourist flow,which is mainly determined by the center degree of the region(node);(2)The structure of urban tourist flow is highly coupled with the main function of tourism;(3)The spatial-temporal attribute of the main function of the region(node)is also an important factor affecting the structure of tourist flow;(4)By analyzing the degree of net extroversion of the region,the emphasis of the function of“gathering”and“scattering”can be gotten,which can provide reference and enlightenment for the tourism development of the specific region.