Acta Geodaetica et Cartographica Sinica ›› 2022, Vol. 51 ›› Issue (8): 1797-1806.doi: 10.11947/j.AGCS.2022.20210094

• Cartography and Geoinformation • Previous Articles     Next Articles

Personalized city region of interests recommendation method based on city block and check-in data

LIU Jiping1, ZHANG Zhiran1,2, YANG Chaowei3, XU Shenghua1, CHEN Cai4, QIU Agen1, ZHANG Fuhao1   

  1. 1. Chinese Academy of Surveying and Mapping, Beijing 100830, China;
    2. School of Earth Sciences and Engineering, Xi'an Shiyou University, Xi'an 710065, China;
    3. NSF Spatiotemporal Innovation Center, George Mason University, Fairfax Virglnia 22030, USA;
    4. School of Marine Technology and Geomatics, Jiangsu Ocean University, Lianyungang 222005, China
  • Received:2021-02-22 Revised:2021-12-28 Published:2022-09-03
  • Supported by:
    State Key Laboratory of Geo-Information Engineering and Key Laboratory of Surveying and Mapping Science and Geospatial Information Technology of MNR,CASM (No.2021-04-13);The National Natural Science Foundation of China (No.42071384);The National Key Research and Development Program of China (No.2019YFB2102503)

Abstract: Using the historical user data of social media to analyze the preferences of users'spatial activities and region of interest (ROI) is of great value for city commercial planning,people's urban life and needs.The ROI obtained by existing methods has big ambiguity and vague in content,and lack actual geographical scope and accurate geographical description for users.We propose a personalized ROI mining and recommendation method combing city block and check-in data (CBCD) that introduces the concept of city blocks to solve the problem of vague ROI boundaries.Specifically,the large number of check-in points are mapped into city blocks generated by the road network,followed by modeling of user geographical and categorical preference.Finally,we integrate geographical and categorical activity preference models to recommend ROIs to users.Experiments on real datasets show that this method has high recommendation accuracy and is of great value for mining and recommending city blocks of interest to users.

Key words: region of interest, recommendation, city block, location based social networks

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