Time-Series on The Standard Errorhttps://jongha-jeon-dev.github.io/standarderror/tags/time-series/Recent content in Time-Series on The Standard ErrorHugo -- 0.123.7en-gbTue, 13 Oct 2026 00:00:00 +0000ML 36: Shuffling a Time Series Is Safe Until the Errors Rememberhttps://jongha-jeon-dev.github.io/standarderror/lectures/ml-36-time-series/Tue, 13 Oct 2026 00:00:00 +0000https://jongha-jeon-dev.github.io/standarderror/lectures/ml-36-time-series/The rule against shuffled folds is right for a reason that is narrower than time: something the model cannot see changing slowly. Forward splitting is not the cure it is sold as.