US Patent 9697258 Supporting enhanced content searches in an online content-management system

The disclosed embodiments relate to techniques for supporting enhanced content-item searches in an online content-management system. These techniques generally operate by gathering information that is available in the online content-management system (such as how often each content item has been updated, how many users have accessed the content item, and how many identical copies of the content item are stored in the online content-management system) and using this information to identify relevant content items that are likely to be important to a user. This enables the online content-management system to perform searching operations that return relevant content items to the user.