From: NeurIPS.cc/2021/Workshop/DistShift/Program_Chairs
title: Paper Decision
decision: Accept (Poster)
comment: We thank the authors for the submission. Reviewers agreed that the paper is well-written, tackles an important and relevant problem, and proposes an interesting method that is effective on the datasets studied. 

However, as Reviewer ZkDf noted, while the motivation is realistic, the evaluations in the paper appear to be completely simulated, both in terms of what the "day" and "night" groups are, as well as how they mix over time. The missing link is whether real-world FL datasets match the assumptions used in the simulation (and therefore whether the proposed method works on them). Figure 1-Left seems to report results on a real FL system but we were not able to determine where that came from, whether confidentiality reasons prevented discussing that more, and why the results of the method weren't reported on that system. We strongly encourage the authors to discuss this in the camera-ready version.