A system of content/query feature based data structure retrieval of predicted values is provided. The system can create a data structure having a plurality of rows corresponding to individual content/query features and a plurality of columns corresponding to individual predicted values. The processors can obtain a set of session features associated with a selection by a computing device in response to a query, and a set of content/query features associated with the selection of the content item. The processors can retrieve, from the data structure, a set of predicted values for each of the set of content/query features. The processors can generate, for each of the set of content/query features, a set of aggregate predicted values for each of the set of content/query features, and can include the set of aggregate predicted values in the data structure.