(2022). An evaluation of geo-located Twitter data for measuring human migration. International Journal of Geographical Information Science, 36(9):1830-1852.


(2018). Evaluating the Representativeness in the Geographic Distribution of Twitter User Population. The 12th Workshop on Geographic Information Retrieval in ACM SIGSPATIAL 2018, November 6-9, 2018, Seattle, Washington, USA.

(2018). Outlier Detection and Comparison of Origin-Destination Flows Using Data Depth. 10th International Conference on Geographic Information Science (GIScience 2018), August 28-31, 2018, Melbourne, Australia.

(2017). CyberGIS-enabled urban sensing from volunteered citizen participation using mobile devices. Seeing Cities Through Big Data, Springer International Publishing.

(2017). A Topology-concerned Spatial Vector Data Model for Column-oriented Databases. International Journal of Database Theory and Application, 10(5), pp. 33-46.

(2015). Zipf’s law for all the natural cities around the world. International Journal of Geographical Information Science, 29(3), pp. 498-522.

(2014). Ht-index for quantifying the fractal or scaling structure of geographic features. Annals of the Association of American Geographers, 104(3), pp. 530-540.

(2013). Spatial Search Techniques for Mobile 3D Queries in Sensor Web Environments. ISPRS International Journal of Geo-Information, 2(1), pp. 135-154.

(2010). Mobile visibility querying for LBS. Transactions in GIS, 14(6), pp. 791-809.

(2008). Self-organized natural roads for predicting traffic flow: a sensitivity study. Journal of statistical mechanics: Theory and experiment, 80(2), 021136.