Demographic predictions for content items

A system for generating a predictive model for predicting demographic information for content items, the system comprising:

• at least one processor configured to perform operations comprising:
• assigning a plurality of weighted descriptor values to a first plurality of nodes of a predictive model, wherein:
• for each node of the first plurality of nodes, a weighted descriptor value of the plurality of weighted descriptor values is assigned to a corresponding content item of a first plurality of content items, the weighted descriptor value representing, for the corresponding content item, a demographic from among demographics associated with the first plurality of content items, and
• the weighted descriptor value for the corresponding content item is generated by multiplying a demographic descriptor value of the corresponding content item by a weight;
• assigning, to each node of a second plurality of nodes of the predictive model, a predictive value that represents a predicted demographic for a content item of a second plurality of content items;
• calculating, for each node of the second plurality of nodes, a plurality of pairwise distances between the predictive value assigned to the node and the weighted descriptor values assigned to nodes of the first plurality of nodes;
• and
• assigning, for each node of the second plurality of nodes, a selected demographic from among the demographics associated with the first plurality of content items to the content item of the second plurality of content items, the selected demographic corresponding to a smallest pairwise distance among the plurality of pairwise distances;
• and
• providing, based on a request from a user device for another content item of the first plurality of content items having an associated demographic, the associated demographic being assigned to the content item of the second plurality of content items, a recommendation for the content item of the second plurality of content items to the user device.

A non-transitory computer-readable medium having instructions stored thereon that, when executed by at least one computing device, cause the at least one computing device to perform operations for generating a predictive model for predicting demographic information for content items, the operations comprising:

• assigning a plurality of weighted descriptor values to a first plurality of nodes of a predictive model, wherein:
• for each node of the first plurality of nodes, a weighted descriptor value of the plurality of weighted descriptor values is assigned to a corresponding content item of a first plurality of content items, the weighted descriptor value representing, for the corresponding content item, a demographic from among demographics associated with the first plurality of content items, and
• the weighted descriptor value for the corresponding content item is generated by multiplying a demographic descriptor value of the corresponding content item by a weight;
• assigning, to each node of a second plurality of nodes of the predictive model, a predictive value that represents a predicted demographic for a content item of a second plurality of content items;
• calculating, for each node of the second plurality of nodes, a plurality of pairwise distances between the predictive value assigned to the node and the weighted descriptor values assigned to nodes of the first plurality of nodes;
• and
• assigning, for each node of the second plurality of nodes, a selected demographic from among the demographics associated with the first plurality of content items to the content item of the second plurality of content items, the selected demographic corresponding to a smallest pairwise distance among the plurality of pairwise distances;
• and
• providing, based on a request from a user device for another content item of the first plurality of content items having an associated demographic, the associated demographic being assigned to the content item of the second plurality of content items, a recommendation for the content item of the second plurality of content items to the user device.