Abstract: Methods, systems, and media for presenting content organized by category are provided. In some embodiments, the method comprises: receiving a request to present a page indicating content related to a first entity; identifying a first group of entities related to the first entity based at least in part on user interaction information; identifying a group of properties corresponding to the first entity; identifying, for each property, a second group of entities corresponding to the property; calculating, for each property, a score for the property; determining a subset of the properties in the group of properties based on the score of each property; identifying, for each property in the subset of properties, a group of content items corresponding to the property; determining a subset of content items from the group of content items; and causing a user interface indicating the subset of content items to be presented.

Abstract: Methods, systems, and media for presenting content organized by category are provided. In some embodiments, the method comprises: receiving a request to present a page indicating content related to a first entity; identifying a first group of entities related to the first entity based at least in part on user interaction information; identifying a group of properties corresponding to the first entity; identifying, for each property, a second group of entities corresponding to the property; calculating, for each property, a score for the property; determining a subset of the properties in the group of properties based on the score of each property; identifying, for each property in the subset of properties, a group of content items corresponding to the property; determining a subset of content items from the group of content items; and causing a user interface indicating the subset of content items to be presented.

Abstract: An access policy module automatically applies an access policy to a video. Access policies frequently require manual review of an item to determine a proper access policy for the video, such as whether the video should be taken down, age-limited, or permitted general access. Results of a manual review of a video are stored along with the portion of the video that was manually reviewed and the access policy applied to the video. When a trigger event occurs indicating access policies should be considered for a video, the video is compared to reviewed portions of videos that were manually reviewed to determine if an access policy can be automatically applied with sufficient confidence. When insufficient confidence is reached or conflicting access policies both have high confidence, the video is scheduled for manual review with a priority level based on the possible access level of the video.