CS 466/666

Monday December 3

To sign up for a problem, send email to alubiw "at" uwaterloo.ca. I will update this list to indicate the first person who signs up.
  1. [Jeremy Bibby] For the robot navigation problem described in Problem Session 7, consider Algorithm 2, that does doubling after choosing a random initial direction. Prove that the expected distance travelled is at most 7d.

  2. [William Finlay] Show that the paging algorithm LFU (Least Frequently Used) has unbounded competitive ration.

  3. [Jan Zantinge] Show that no deterministic on-line paging algorithm has competitive ratio less than k.

  4. [Tomasz Jaroszewski] Show that Fiat's randomized on-line paging algorithm can in the worst case have competitive ratio at least k.

  5. [Reilly Watson] Show that the local greedy algorithm for the k-server problem has unbounded competitive ratio even for 3 request points and 2 servers.