AUTHOR=Gupta Namita TITLE=Editorial: Smart cities challenges, technologies and trends JOURNAL=Frontiers in Big Data VOLUME=6 YEAR=2023 URL=https://www.frontiersin.org/journals/big-data/articles/10.3389/fdata.2023.1258051 DOI=10.3389/fdata.2023.1258051 ISSN=2624-909X