Old Faithful has long been known for its large geyser plume, and its frequency and regularity of eruptions. Though common lore suggests that it erupts every hour, on the hour, its eruptions are more dynamic, happening roughly every 90 minutes.
Predicting the geyser's next time of eruption is important to the Yellowstone park service as it allows visitors to get in position to watch the event. The current forecasting algorithm for the time until next eruption is based on a simple regression off of the duration of the previous eruption. The distribution of time to next eruption is bimodal, with a peak at 65 minutes following short eruptions, and 92 minutes following long eruptions.
After visiting Yellowstone in 2018, I wondered if a neural network might be able to tease out more subtle correlations in the eruption patterns to be able to forecast more accurately.