Study On Data Analysis And Spatial Differentiation Of Public Opinion On Huangyan Island Based On ESDA

Huangyan Island is only reefs above water in Zhongsha Islands.It is located in a junction of Singapore-Hongkong Seaway,Singapore-Manila-Shanghai Seaway and Singapore-Japan-South Korea Seaway.Its control or not relates to the number of one hundred thousand square kilometers land in Zhongsha Islands and national waterway transport safety.Disputes between China and Philippines on Huangyan Island broke out in April 2012 highlight the importance of the Huangyan Island in the South China Sea.From points of view of public opinion and spatial distribution,based on Sina News and Baidu Index,with the technology of information management,ESDA(Exploratory Spatial Data Analysis)and GIS,this research mines spatial distribution of spatio-temporal data and analyzes change process of public opinion of disputes in Huangyan Island.It provides support for decision-making and resolve disputes in the South China Sea.The main contents of this research are listed as follows:(1)With six communication phases of network events,the research subdivides the news data of disputes in different phases.By means of mathematical statistical tools,the research constructs a relationship network of "Instigators-Objects-Content" in events,and investigates distribution trend and influence of major keywords of disputes in Huangyan Island.(2)The research uses Natural Breakout method to analyse and classify Baidu Index data With Rank-Size method,we gain spatial distribution of data in all the country and subdivide cities' distribution range of different non-scaling section.We also use ESDA to analyse cities' spatial autocorrelation index distribution.(3)With the technology of Mathematical Statistical tools,Centroid Analysis and ESDA,the research calculates the correlation coefficient of spatio-temporal data.We use the result to analyse spatial distribution of correlation levels and local spatial autocorrelation index and so on.The results show that:(1)Disputes between China and Philippines on Huangyan Island can be divided in six phases:latent phase,break-out phase,spread phase,repeatedly phase,remission phase,long-tail phase."Huangyan Island" is a core focus in disputes,and hot point of public opinion and searching.(2)The spatio-temporal data of disputes show the characteristic of "East High,West low,local extremum" in spatial distribution.Its spatial autocorrelation also indicates"high to high" in east,"low to low" in west,and "high to low" in middle provinces or main cities.(3)The spatio-temporal data influences highly the network searching in sudden and peak periods of the event.But it has low influence in the development process and the disappearance periods.We also know that spatial distribution of spatio-temporal correlation coefficient is mainly affected by the network factors,economic factors.and demographic factors.