Di Zhu*, Xinyue Ye, Steven Manson. 2021. Revealing the spatial shifting pattern of COVID-19 pandemic in the United States. Nature Scientific Reports. 11(8396)https://www.nature.com/articles/s41598-021-87902-8 [code]
Di Zhu*, Yu Liu, Xin Yao, Manfred M. Fischer. 2021. Estimating spatial configuration of intra-urban human activities using graph convolutional neural networks. Computers, Environment and Urban Systems. (under review)
Xiao Huang*, Di Zhu, Fan Zhang, Tao Liu, Xiao Li, Lei Zou. 2021. Sensing population distribution from satellite imagery via deep learning: Model selection, neighboring effects, and systematic biases. Journal of Selected Topics in Applied Earth Observations and Remote Sensing. (under review)
Di Zhu, Fan Zhang, Shengyin Wang, Yaoli Wang, Ximeng Cheng, Zhou Huang, Yu Liu*. 2020. Understanding place characteristics in geographic contexts through graph convolutional neural networks. Annals of the American Association of Geographers, 110:2, 408-420.https://doi.org/10.1080/24694452.2019.1694403
Yaoli Wang, Di Zhu, Zhou Huang*, Yu Liu. 2020. A unified spatial multigraph analysis for sustainable urban transportation. Nature Scientific Reports, 10, 9573.https://doi.org/10.1038/s41598-020-65175-x
Nilufer Sari Aslam, Di Zhu, Tao Cheng, Mohamed Ibrahim and Yang Zhang. 2020. Semantic enrichment of secondary activities using smart card data and point of interests: A case study in London. Annals of GIShttps://doi.org/10.1080/19475683.2020.1783359
Xin Yao, Yong Gao*, Di Zhu, Ed Manley, Jiao'e Wang and Yu Liu. 2020. Spatial origin-destination flow imputation using graph convolutional networks. IEEE Transactions on Intelligent Transportation Systemshttps://doi.org/10.1109/TITS.2020.3003310
Xiaoyue Xing, Zhou Huang*, Ximeng Cheng, Di Zhu, Chaogui Kang, Fan Zhang, Yu Liu. 2020. Mapping Human Activity Volumes Through Remote Sensing Imagery. Journal of Selected Topics in Applied Earth Observations and Remote Sensinghttps://doi.org/10.1109/JSTARS.2020.3023730
Fan Zhang, Jinyan Zu, Mingyuan Hu*, Di Zhu, Yuhao Kang, Song Gao, Yi Zhang, Zhou Huang. 2020. Uncovering inconspicuous places using social media check-ins and street view images. Computers, Environment and Urban Systems. 81, 101478.https://doi.org/10.1016/j.compenvurbsys.2020.101478
Fan Zhang, Lun Wu, Di Zhu, Yu Liu*. 2019. Social sensing from street-level imagery: a case study in learning urban mobility patterns. ISPRS Journal of Photogrammetry and Remote Sensing, 153: 48-58.https:// doi.org/10.1016/j.isprsjprs.2019.04.017
Lei Chen, Yong Gao*, Di Zhu, Yihong Yuan, Yu Liu. 2019. Quantifying the scale effect in geospatial big data using semi-variograms. Plos One, 1-18https:// doi.org/10.1371/journal.pone.0225139
Di Zhu, Yu Liu*. 2018. Modelling irregular spatial patterns using graph convolutional neural networks. arXiv preprint: 1808.09802https://arxiv.org/abs/1808.09802
Di Zhu, Ninghua Wang, Lun Wu and Yu Liu*. 2017. Street as a big geo-data assembly and analysis unit in urban studies: A case study using Beijing taxi data. Applied Geography, 86: 152-164.https://doi.org/10.1016/j.apgeog.2017.07.001
Shiliang Zhang, Di Zhu#,*, Xin Yao, Ximeng Cheng, Huagui He, Yu Liu. 2018. The scale effect on spatial interaction patterns: an empirical study using taxi OD data of Beijing and Shanghai. IEEE Access, 6, 51994-52003.https://doi.org/10.1109/ACCESS.2018.2869378
Xin Yao, Di Zhu, Yong Gao, Lun Wu, Pengcheng, Zhang, Yu Liu*. 2018. Visualizing spatial interaction characteristics with direction-based pattern maps. Journal of Visualization, pp 1-15.https://doi.org/10.1007/s12650-018-00543-4
Xin Yao, Lun Wu, Di Zhu, Yong Gao, Yu Liu*. 2018. A stepwise spatio-temporal flow clustering method for discovering mobility trends. IEEE Access, 6, 44666-44675.https://doi.org/10.1109/ACCESS.2018.2864662
Lun Wu, Ximeng Cheng, Chaogui Kang, Di Zhu, Yu Liu*. 2018. A framework for mixed use decomposition based on temporal activity signatures extracted from big geo-data. International Journal of Digital Earth, pp 1-19https://doi.org/10.1080/17538947.2018.1556353
Di Zhu, Yu Liu*. 2017. An Incremental Map-Matching Method Based on Road Network Topology. GEOMATICS AND INFORMATION SCIENCE OF WUHAN UNIVERS, 42(1): 77-83.http://ch.whu.edu.cn/CN/10.13203/j.whugis20150016
Yu Liu, Zhaohui Zhan, Di Zhu, Yanwei Chai, Xiujun Ma, Lun Wu*. 2018. Incorporating Multi-source Big Geo-data to Sense Spatial Heterogeneity Patterns in an Urban Space. GEOMATICS AND INFORMATION SCIENCE OF WUHAN UNIVERS, 43(3): 327-335.https://doi.org/10.13203/j.whugis20170383
Chen, T., and Zhu, D.*. (2021). The Spatio-temporal Stratified Association between Human Activities and Crime Patterns during the COVID-19 Stay-at-home Mandate, Proceedings of the 2021 ACM SIGSPATIAL China Annual Conference on Space Intelligence (SpatialDI 2021), Apr. 23 - 24, Hangzhou, China.
Chen, T.*, Cheng, T., and Zhu, D. (2021). The exploration of human activity zones using geo-tagged big dataduring the COVID-19 first lockdown in London, UK, Proceedings of the 29th Conference on GIS Research UKApr. 13-16, Cardiff University, United Kingdom.
Zhu, D.* (2020). Intelligent spatial prediction: Rethinking geospatial modeling in the era of GeoAI. Invited talk in the Annual Conference of Geomatics and GIScience@Central South University, Dec. 26, Changsha, China.
Zhu, D.* (2020). Intelligent spatial prediction in incomplete-data scenarios. Invited talk in the CPGIS GeoAI Seminar Series@China University of Geosciences, May 6, online livestream.
Zhu, D.*, Cheng, T., and Liu, Y. (2019). Geo-propagation from Incomplete Spatial Distribution Data: A Case Study of House Price Estimation, Proceedings of the 27th Conference on GIS Research UK, Newcastle upon Tyne, United Kingdom.
Soundararaj, B.*, and Zhu, D. (2019). Estimating pedestrian flow from footfall counts using geo-propagation. In Annual conference on complex systems (ccs 2019). Sep. 30 - Oct. 4, Singapore.
Wang, Y.,* Zhu, D., Yin, G., Huang, Z., and Liu, Y. (2019). Investigating local travel speed with spatial network structures and properties. In Proceedings of the 2nd international conference on urban informatics. June 24-26, Hong Kong, China.
Zhu, Di.* (2019). Spatial interpolation based on conditional generative adversarial neural network. In AAG Annual Meeting. Apr. 5, Washington D.C., USA.
Zhu, D.* (2019). Inferring national migration flows from sequential population snapshots. Invited talk in Geospatial Seminar@UCL, Department of Civil Environmental and Geomatic Engineering, UCL. Feb. 21, London, United Kingdom.
Zhu, D. and Liu, Y.* (2018). Modelling spatial patterns using graph convolutional networks, Leibniz International Proceedings in Informatics (LIPIcs), 10th International Conference on Geographic Information Science, 2018, Melbourne, Australia.
Zhu, D., Shi, L., Wang, Y., Cheng, X., and Liu, Y.* (2017). Infer Spatial Interaction Patterns from Spatial Distributions, 25th International Conference on Geoinformatics, 2017, Buffalo, United States of America.
Zhu, D., Wang, N. and Liu, Y.* (2016). Street perspective: a novel spatial unit in urban social sensing, 17th International Symposium on Spatial Data Handling, 2016, Beijing, China.
Zhu, D. and Liu, Y.* (2016). The Distance Effect in Spatial Interaction and Spatial Similarity: a Big Data View of Tobler’s First Law, 33rd International Geographical Congress, 2016, Beijing, China.