A Study On Space-time Characteristics And Scope Delimitation Of Residents'activities In Beijing-Tianjin-Hebei Urban Agglomeration Based On The Check-in Data Of Sina Microblog

The arrival of large data age brings new opportunities for urban research and planning,which transform the traditional way of data acquisition,such as statistical yearbook,questionnaire,.interview and so on to network data,especially location-based social network data mining.This paper uses Sina microblogging sign data(from April 1,2015 to April 30,2015),based on the check-in data of the Beijing-Tianjin-Hebei urban agglomeration activities of space-time characteristics and spatial scope of activities delimitation.Specific research methods and content are as follows:(1)Time-space Analysis of Residents' Activities.Time:respectively count and analyse residents' check-in data of weeks and days to find the behavior of the time distribution law by using the mathematical statistics,next to further study of the the user's check-in behavior of holidays(mainly Ching Ming Festival).In the aspect of space,this paper analyzes the spatial law of the residents 'overall activities.In view of the large scope of the study area and the common law of the residents' activities,the article takes the Beijing area as an example,Units to study the spatial pattern of residents' activities in Beijing by using the Head-tail breaks.(2)The Scope of Residents' Acti,vities in Beijing-Tianjin-Hebei Urban Agglomeration.In this paper,the spatial distribution of residents' activities in the urban agglomeration is analyzed by using the spatial analysis method such as nuclear density analysis method,network analysis method and spatial clustering analysis.The spatial distribution of the activities of residents in the urban agglomeration is analyzed by four aspects:activity intensity,activity scale,activity intensity and activity agglomeration degree.And then define the boundary of the residents 'activities on each metropolitan area,and then define the boundary of the residents' activities on the basis of this.The main conclusions of the study are as follows:? The time course of the residents 'activities is consistent with the time of the residents' rest schedule;the' rest day and the holiday residents 'activity time and the working day are pushed backwards on the time axis,and the residents' activities are more concentrated in the afternoon and Night;?inhabitants activities uneven spatial distribution,the regional level difference is obvious,the city residents check-in activities are mainly located in the city,the county/city center,and them were concentric distribution center;?by the traditional laws and regulations,The activities of the residents in the day experienced a scattered,agglomeration,and then scattered process.? Beijing,Shijiazhuang,Baoding,Tangshan as the center,including the Beijing area,Tianjin area,Shijiazhuang City area,Baoding city area,Tangshan city area,Langfang city area,the city of Tianjin,Xingtai City area and Zhengding County,Jingxing County and other 50 counties/city.Beij ing-Tianjin-Hebei city group based on Sina microblogging sign of the residents of the activities of the overall spatial range of anti-"bow" shape distribution.