Gabriele Cavallaro Dora B. Heras Dalton D. Lunga Martin Werner 0001 Andreas Züfle GeoSearch'21: Proceedings of the 1st ACM SIGSPATIAL International Workshop on Searching and Mining Large Collections of Geospatial Data, Virtual Event / Beijing, China, 2 November 2021 ACM GeoSearch@SIGSPATIAL 2021 978-1-4503-9123-8 https://doi.org/10.1145/3486640 db/conf/gis/geosearch2021.html