TimeGPT-1
“Some popular models like Prophet [Taylor and Letham, 2018] and ARIMA were excluded from the analysis due to their prohibitive computational requirements and extensive training times.”<p>Anyone who work a lot in time series forecasting can explain this in some more details?<p>I’ve def used ARIMA, but only for simple things. Not sure why this would be more expensive to train and run than a Transformer model, and even if true, ARIMA is so ubiquitous that comparing resources & time would be enlightening.  Otherwise it just sounds like a sales pitch and throw more obscure acronyms for a bit of “I’m the expert, abc xyz industry letters” marketing.