An article management system collects articles from different sources, processes each article to extract information about the article (such as the topics covered in the article), and stores the information in one or more knowledge graphs. The system also maintains user profiles for each of its users. Each user profile includes a user genome representing the user's interests and preferences. The information in the knowledge graphs can be used to select articles to be displayed to users of the article management system. Articles can be displayed as part of the search results for an associated topic or concept, as part of a personalized feed that is generated based on the data in a user's profile, or as part of a feature that displays multiple articles that cover a given topic from multiple different viewpoints. The system can also provide a platform for users to create and publish research collections.