What were the key R&S issues Google was attempting to address in its changes? What were the goals of the changes?Discuss

What were the key R&S issues Google was attempting to address in its changes? What were the goals of the changes?
What criteria will you use to evaluate the system? What information will you need to make your evaluation?
What elements of the new system do you think will be effective in enabling Google to achieve its selection goals? Why?
What elements of the system need additional refinement? Why?
Are there any ethical, human rights, or privacy concerns with the changes that have been implemented? What do you recommend be done to address those concerns?
What other methods would you propose to enhance the new system? Why?