The following articles are the most downloaded articles for the journal during the past month. These statistics provide you with an indication of popular topics of interest to our community. Taking the Human Out of the Loop: A Review of Bayesian Optimization Read more A Comprehensive Survey on Transfer Learning Read more 6G for Vehicle-to-Everything (V2X) Communications: Enabling Technologies, Challenges, and Opportunities Read more Explaining Deep Neural Networks and Beyond: A Review of Methods and Applications Read more Toward Causal Representation Learning Read more