Improving Viewership Projections: Forecasting for Data-Driven Audience Segments
Diana Saafi, Data Science Lead at Discovery, built on Cliff Young’s comments about the importance of multiple indicators for forecasting. Saafi forecasts linear television audiences in segments of interest to advertisers (beyond age-sex segments), rather than political outcomes. She and her team have found that their models have benefited from using multiple sources of data. She recommended identifying signals that are most predictive, experimenting with different types of models (such as ARIMA models and AI models), continually refreshing the data in the models, and continually updating the models. While this process is now automated at Discovery, there are people who monitor changes in the predictions, which she referred to as “human-in-the-loop automation.”