【摘要】 基于百度位置服务数据(LBS),利用k-means聚类、重心模型等方法,从时间维度和空间维度对青岛市中心城区活力特征展开研究,以期对理解城市空间、布局服务设施、提高城市活力提供理论支撑。结果表明:空间活力强度总体呈日高夜低特征,日间活力三峰两谷,存在小幅波动;各行政区活力密度高低互现,形成带状延续、单中心放射、单中心聚集、双中心放射、多核串联5种聚集模式;空间上东岸城区和北岸城区活力重心分布范围更广,西岸城区重心分布更为密集。更多还原

【Abstract】 Based on Baidu Location Based Services data,using k-means clustering and barycenter model,the vitality in the central urban area of Qingdao is studied from temporal and spatial perspectives,which provides theoretical support for understanding urban space,layout service facilities and improving urban vitality.The results show that:the spatial vitality intensity shows the characteristics of being high in the day and low in the night,with small fluctuations of three peaks and two valleys in the daytime;the vitality density of each administrative region is different,forming five aggregation modes:zonal extension,single center radiation,single center aggregation,double center radiation and multi-core series connection;in terms of the distribution of the vitality center,the urban areas on the eastern bank and the northern bank are wider,while the urban areas on the western bank are denser.更多还原