The Engagement-Diversity Connection: Evidence from a Field - PowerPoint PPT Presentation

May 15, 2023 •395 likes •454 views

The Engagement-Diversity Connection: Evidence from a Field Experiment on Spotify David Holtz MIT Sloan Joint work with Ben Carterette, Praveen Chandar, Zahra Nazari, Henriette Cramer, and Sinan Aral Recommender systems What effect do

The Engagement-Diversity Connection: Evidence from a Field Experiment on Spotify David Holtz MIT Sloan Joint work with Ben Carterette, Praveen Chandar, Zahra Nazari, Henriette Cramer, and Sinan Aral
Recommender systems What effect do recommender systems have on... Individual-level consumption diversity Intragroup consumption diversity : : :
Experiment design Treatment intervention changed the podcasts displayed to users in “Podcasts to try” on Spotify’s mobile app Control: Recommended the 10 most popular podcasts among users in their demographic group Treatment: Recommended 10 podcasts based on an ML model that uses music listening history and demographic info to predict podcast follows (Nazari et al. forthcoming) ● Removed once a user streams or follows their first podcast
The “engagement-diversity trade-off” ● Recommender systems can create an “engagement-diversity trade-off” for firms when optimizing solely for engagement ○ Increase the amount of content users consume ○ Increase the homogeneity of content that individual users consume ○ Increase the dissimilarity between what different users consume ● Exposure to personalized recommendations affects recommended consumption and “organic” consumption ● Short-term exposure does not cause long-term changes to consumption volume or diversity ○ Possible to “correct course” after audits of recommender systems

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