Grading Policy for VO+PS "Computational Geometry"
- VO "Computational Geometry" will be graded on the basis of oral exams that
cover the material taught in class.
- PS "Computational Geometry" will be graded as follows:
- Unless announced explicitly otherwise, after each VO lecture (on Fridays)
I will post a sheet
with new assignments no later than on the subsequent Monday.
- All new assignments will be discussed in the PS class
in the week following the
- All assigments (given so far) will be available as one
on the webpage of the course.
- Hence, in general you will have about one and a half weeks to work
out the assignments. (There might be
exceptions to this rule which I will announce clearly.)
- At the beginning of each PS class you will be asked to declare
which assignments you are willing to present in class. So, please, make
sure to be on time!
- Your PS grade will be based on the number of assignments for which
you declared a willingness to present them and on your performance at the
blackboard/whiteboard during the presentation of assignments.
- In addition, I will take notes of other noteworthy contributions of
students during class.
- In order to get a passing grade you are required to mark
at least MIN assignments as the ones which you are willing to present
in class, where MIN is computed as follows:
I expect X to be in the range 32 to 40, and Y to be about 12.
Please note that marking at least MIN assignments is a necessary but not a
sufficient condition for passing the PS!
- Let X be the total number of assignments posted.
- Let Y be the total number of different assignment sheets.
- Let MAX := (X/Y) * (Y-1).
- Then MIN := 0.5 * MAX.
- You can get credit for the assignments worked out only if
you attend the PS personally.
- You are not required to hand-in your assignments, unless
explicitly requested for some particular assignments.
- You may cooperate and discusss the assignments with other students.
(Of course, with the exception of those few assignments for
which I explicitly request everybody to come up with his/her own
- Similarly, you are welcome to consult textbooks or online sources.
- Frankly speaking, I do not care whether or not you discuss assignments
among your peers, or how you come up with a solution.
- However, I will not tolerate plagiarism: Once you mark an assignment as
solved then I expect you to fully
understand your solution. That is, you'll have to be able to
argue why your solution ought to be correct, and you have to be
able to answer questions concerning (sub-)problems related to your
- In any case, if presented with a full line of arguments then I will be
much more lenient towards "solutions" that fall apart. On the other hand,
phrases like "It seems like..." or "I believe that..." or "This is true!!!"
(without any rational why it should be true) simply do not belong to the
line of reasoning employed by computational geometry, and I will react
harshly to such "solutions". Hopes and fears are
an important part of everybody's life, but computational geometry is not
about hopes or fears but about rigorous arguments!! A code that does not
compile is useless, and a claim that cannot be substantiated is (in most
cases) about as useless. Of course, it can be declared a "hypothesis"
and might help foster future research...
- As a rule of thumb, if you are not convinced that you can outline a full
suite of arguments then it is likely smarter not to claim credit
for an assignment and have one assignment less to your credit,
than to risk being caught by me.
- If you'd come up with two or more solutions then I'd advise you to focus
on one solution and work it out in detail, rather than have
several "half-baked" solutions.
- For specific assignments that are to be handed in in writing I do not
allow cooperation since I do not want to read the same solution
several times, once verbatim identically, once with "I" replaced by
"J", once with "I" replaced by "K", and so on. Part of the reason
why I want you to work out written solutions is that I would
like you all to practice writing up solutions. (Clearly, this goal
is not met if one solution would be copied multiple times.)
- As a final remark, let me emphasize that the level of theoretical
difficulty of the contents of the VO and of the PS assignments will be
rather moderate compared to international standards. Take a look at some
of the leading textbooks, or grab assignments posted by colleagues on the
web, and you'll quickly learn that there are far more involved
assignments out there. I appreciate the fact, though, that this type
of work (and the skills required) are set apart from most of the other
classes that you might have attended in your CS (or even math) studies