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Data Analysis and Knowledge Discovery  2019, Vol. 3 Issue (6): 1-11    DOI: 10.11925/infotech.2096-3467.2018.0767
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Spatio-Temporal Characteristics of WMTS Access Sessions
Ru Li1,Rui Li1,2,Jie Jiang3(),Huayi Wu1,2
1(State Key Laboratory of Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China)
2(Collaborative Innovation Center of Geospatial Technology, Wuhan 430079, China)
3(National Geomatics Center of China, Beijing 100830, China)
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Abstract  

[Objective] This paper explores the spatio-temporal statistical characteristics of users’ visits to Web Map Tile Service (WMTS). [Methods] First, we identified the WMTS sessions and extracted the targets based on an efficient algorithm. Then, we studied the temporal features of user access sessions with daily session numbers, requests and duration of each session, as well as assess speed per tile. For spatial characteristics, we described the relationship between users’ locations and their access targets, such as provinces, cities, and distances. [Results] The users’ WMTS sessions possessed power-law distribution, and most of them were brief and efficient with clear objectives. Users from provinces with better information infrastructure tended to have more centralized and deeper WMTS sessions. Most of the WMTS sessions searched for targets within the same province or city, while 30% of the targets were within 43 km of the users’ city centers. [Limitations] The data was collected from users who access WMTS frequently, which needs to be expanded. [Conclusions] Describing users’ access characteristics from session granularity, helps us understand users’ geographical information needs.

Key wordsWMTS      Session Identification      Access Target      Spatial Distance Classification      Spatiotemporal Statistics and Analysis     
Received: 15 July 2018      Published: 15 August 2019

Cite this article:

Ru Li,Rui Li,Jie Jiang,Huayi Wu. Spatio-Temporal Characteristics of WMTS Access Sessions. Data Analysis and Knowledge Discovery, 2019, 3(6): 1-11.

URL:

http://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/10.11925/infotech.2096-3467.2018.0767     OR     http://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/Y2019/V3/I6/1

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