Abstract: The disclosed technology can provide tools to choose who can provide comments and tools to hide comments. A public figure, such as a verified public figure, can select who is permitted to comment on a post by the public figure subject to certain restrictions that promote open public dialogue. Any user, apart from a public figure, also can select who is permitted to comment on their public posts. Further, how a comment to a post is viewed can be based on a type of viewer, a type of action taken on the comment, and a type of actor who takes action on the comment. A plurality of comments can be hidden and removed from an original listing of comments and relocated to a separate area created for hidden comments.

Abstract: An embedding vector is the determined for a target user based on a weighted sum or the embedding vectors of entities the target user has interacted with in the past. Then, for each entity of a plurality of entities of the online system, a measure of similarity between the embedding vector of the user and the embedding vectors of the plurality of entities is determined. Based on the measure of similarity of each of the entities, the plurality of entities are ranked and one or more entities are selected to be presented to the user.

Abstract: An embedding vector is the determined for a target user based on a weighted sum or the embedding vectors of entities the target user has interacted with in the past. Then, for each entity of a plurality of entities of the online system, a measure of similarity between the embedding vector of the user and the embedding vectors of the plurality of entities is determined. Based on the measure of similarity of each of the entities, the plurality of entities are ranked and one or more entities are selected to be presented to the user.