Combining Traditional Modeling with Machine Learning for Predicting COVID-19

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In her July 16 seminar, Christina Ramirez, a professor of Biostatistics at the UCLA Fielding School of Public Health, shared her groundbreaking, comprehensive model that combined traditional SEIR models with case velocity and machine learning to get precise, reliable estimates of COVID-19 case and death rates — shining a light on whether the pandemic is gaining speed and if deaths are accelerating or stabilizing. This project also uses the UCLA Center for Health Policy Research’s California Health Interview Survey (CHIS) to obtain an accurate snapshot of California data so that morbidity and mortality rates are based on the known prevalence of sociodemographic factors such as age, race, and co-morbidities or underlying health conditions.

Speakers

Christina Ramirez

Christina Ramirez

Upcoming Events

Thursday, October 09, 2025

Webinar // 12:00 PM — 1:00 PM

California Health Interview Survey (CHIS) Annual Data Release

What percentage of Californians experienced a hate incident? Housing or food insecurity? Asthma attacks from wildfire smoke? Medical debt or delays in accessing needed health care? What are some of the challenges facing Californians and who is most affected? Join us on Thursday, October 9, for the annual California Health Interview Survey (CHIS) data release, where we'll share findings from the 2024 survey.

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Thursday, October 30, 2025

Training Webinar // 12:00 PM — 1:30 PM

California Health Interview Survey (CHIS) Data User Training: October 30, 2025

Join the UCLA Center for Health Policy Research as we host a data user training on Thursday, October 30 to demonstrate how to use CHIS' free online health query tool AskCHIS™ to get data on a wide range of health topics.

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