10. The method of claim 1 , wherein selecting a set of knowledge modules to be presented in the knowledge panel further comprises selecting the set of knowledge modules based on a number of the content items that have been classified to a particular content category.
11. The method of claim 10 , wherein selecting the set of knowledge modules based on a number of the content items that have been classified to a particular content category comprises: determining that a number of the content items that have been classified as image content items is less than a threshold number of images required to select an image module for inclusion in the set of knowledge modules; and selecting the set of knowledge modules to not include an image module.