Interactive Bin Packing, v3.1.0

[3.1.0] - 2021-06-24

Added

• A directory of example homework assignments that can be used or adapted by
  course instructors using the application in a class. The example assignments
  can also be used by self-directed learners.
• Session Logs
  • Feature that logs most user interaction with the application, and
    generates an in-application view of the session log.
  • The session log summarizes total time in the application, instances
    solved by the user correctly using their chosen heuristic, number of
    successful and unsuccessful solving actions taken in each of the
    application modes, as well as additional information that may be useful
    to instructors using the application within a course context.
  • In addition to viewing the current session log, session logs can be
    saved to a file. The motivation is to ease instructor grading of
    assignments that use the application. For example, instructors can
    assign each student a different problem instance and have students save
    and submit the session log, which the instructor can then use for
    validation.
  • The load session log feature loads a session log, validates it, and displays
    a human readable summary. The validation verifies that instances that are
    claimed solved using a particular heuristic were actually solved using that
    heuristic. That is, the session log doesn't include the solution, but rather
    it includes the actions taken to reach the solution, the problem instance
    number, and the chosen heuristic, and the application validates that the actions
    taken are those that the heuristic would have chosen. The validation also
    validates timestamp sequences, etc.
  • Note to instructors: We don't guarantee that the session logs cannot be
    faked. However, the effort required to fake a session log that will fool the
    validation is significantly more than the effort needed to work through the
    exercises. Additionally, to successfully fake a session log, the student would
    still need the correct sequence of actions to solve the specified instance
    using the specified heuristic. Simply assign each student a different
    problem instance number (it is a value of type long), perhaps based on their
    student id number.

Fixed

• Reorganized resources files (html content of dialogs, and images)
  to use a namespace (i.e., within a directory hierarchy based on package name).