AI brief
A user asks whether time series data should be split into training and test portions before or after applying tumbling and sliding window transformations for an LSTM predictor, noting they could not find authoritative guidance on the topic.
Written by AI from AI Stack Exchange's published text.
Source
“I can't find any book, article, or trustworthy webcontent on the correct way of handling timeseries data for inputting it on a LSTM predictor.”
Interpretation or community commentary rather than straight reporting.
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