Your Time-Series Forecast Breaks When You Ignore Context
This story is from 2026-10-20. It is preserved in the archive; the latest stories are on the live feed.
You feed a time-series foundation model a year of hourly data and get back a forecast that looks plausible. Then you deploy it and it misses every spike. The model didn't fail because the data was bad. It failed because the context window was wrong. By the end of this piece you will be able to spot…
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- 2026-10-20 00:46 · DEV Community — Machine Learning
Your Time-Series Forecast Breaks When You Ignore Context