Systems and methods for generating media content recommendations for shared playback

Abstract

A computer system receives, while a first user is participating in a shared playback session that includes the first user and a plurality of users other than the first user, a request for a set of recommended media items. In response to receiving the request, the computer system: retrieves a first set of media items from a playback history of the first user; retrieves a plurality of probabilistic data structures for the plurality of users other than the first user, each probabilistic data structure indicating a playback history of a respective user of the plurality of users other than the first user; and provides, for display in a user interface, the set of recommended media items that comprises a subset of the first set of media items selected based on the playback histories of the plurality of users as indicated by the plurality of probabilistic data structures.