Press 
COVID-19 has been tumultuous for revenue management. Passenger number predictions have been completely skewed by the pandemic. As a result, revenue management systems have had to rely on adaptive learning models more than before. These models need to learn faster, based on the new trends that are coming as a result of the pandemic and have had to be complemented with additional data sources too.
Source: How AI‐powered revenue management is helping airlines recover | PhocusWire
