Systems and methods for determining descriptors for media content items

A first electronic device comprising:

• one or more processors;
• and
• memory storing instructions for execution by the one or more processors, the instructions including instructions for:
• obtaining a plurality of collections of media content items, each collection of media content items being associated with text generated by one or more users of the media-providing service;
• determining a coincidence metric for a first descriptor and a first media content item, the coincidence metric corresponding to a likelihood that the first descriptor appears in the text associated with a respective collection of media content items that includes the first media content item;
• and
• based on the coincidence metric, generating a new collection of media content items for a first user, wherein the new collection of media content items corresponds to the first descriptor and includes the first media content item.

A non-transitory computer-readable storage medium storing instructions, which when executed by an electronic device, cause the electronic device to:

• obtain a plurality of collections of media content items, each collection of media content items being associated with text generated by one or more users of the media-providing service;
• determine a coincidence metric for a first descriptor and a first media content item, the coincidence metric corresponding to a likelihood that the first descriptor appears in the text associated with a respective collection of media content items that includes the first media content item;
• and
• based on the coincidence metric, generate a new collection of media content items for a first user, wherein the new collection of media content items corresponds to the first descriptor and includes the first media content item.