Our new time series repository: Forecastingdata.org
We have put together a new time series data repository for forecasting. It is dedicated to sets of series for cross-learning/global modelling, and to single but very long series (the longest ones over 7 million data points). We were also not too happy with any existing data format, so we developed a new one and we think it is quite useful and versatile.
Paper link: https://arxiv.org/abs/2105.06643