Abstract: Methods and systems are disclosed related to determining whether there is a proper fit between a user interface and a face of a user. The methods and systems involve generating seal information associated with a seal region between a face of a user and a current user interface donned on the face of the user. The methods and systems are further related to analyzing the seal information to determine whether a leak exists in the seal region. If the leak exists, the systems and methods include analyzing the seal information to determine a location of the leak within the seal region. The systems and methods further include determining a new user interface to replace the current user interface based on the current user interface and the location of the leak.

Abstract: Embodiments include methods, apparatus, and systems for summarizing file system operations with a file system journal. One embodiment includes a method that stores journal operations for files in a journal file system into a hierarchical tree. The method then summarizes changes made to the files in the hierarchical tree to determine which files require being read and backed up due to changes to content and which files have change but do not require being read and backed up.

Abstract: Embodiments include methods, apparatus, and systems for summarizing file system operations with a file system journal. One embodiment includes a method that stores journal operations for files in a journal file system into a hierarchical tree. The method then summarizes changes made to the files in the hierarchical tree to determine which files require being read and backed up due to changes to content and which files have change but do not require being read and backed up.