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The goals
The goals of our major include providing our students with the following
abilities:
- To conceptualize multiple views of problems, to develop computational
solutions grounded in theory, and to evaluate their solutions using a range of
metrics.
- To work alone and in teams to identify, formulate, and solve computing
problems.
- To gain a firm grounding in the core areas of computer science: theory,
systems, programming languages, and algorithms.
- To apply the knowledge gained in core courses to a broad range of advanced
topics in computer science, and to develop the ability to learn sophisticated
technical material independently.
- To be able to communicate technical information both orally and in writing.
- To understand the theoretical, practical, and ethical ramifications of
computational solutions to problems, and to be aware of current research
developments in computer science.
Assessing the goals
Each of our goals is assessed in multiple ways by students satisfying the
requirements of the major. Most of these goals are tested in each of the core
courses of the major, as well as the senior seminar and senior project. For
example:
- Goal 1 is assessed via problem sets and exams in CS 62, CS 140, CS 81 and CS
131, all of which are required courses in the major. Here are a few examples. In
CS 62 and CS 140, students learn to design algorithms and data structures to
solve computational problems. Students are assessed on their ability to analyze
their algorithms for time and space efficiency in order to determine the ideal
solution given the problem constraints. As an example of a different sort, in CS
131 students are assessed on their ability to implement parsers based on the
theory learned in CS 81. Based on student performance in these required courses,
we believe students are meeting this goal.
- Goal 2 is assessed in virtually all of our courses, both required and
electives, as students are assigned problems and work out computational
solutions to homework, lab, and exam problems. Many courses encourage students
to work together in teams on implementing programs, while teams are explicitly
required in the required Computer Systems course, CS 105.
- Goal 3 is attained by requiring students to take courses in the four core
areas of computer science. Assignments and examinations show that students are
indeed exhibiting substantial mastery of those areas.
- Goal 4 is assessed by student performance in three or more electives, by
attendance at computer science colloquia, by participation in the senior
seminar, and most particularly by meeting the requirements for the senior
project.
The senior project is primarily focused on having students demonstrate their
competence in this goal, as they must propose and solve a major computing
problem, and present a series of oral reports and a substantial (roughly 30
page) paper on their solution. This project requires students to use the
knowledge gained in previous courses to learn new material, find and evaluate
prior research in the area, and to show that they can solve and analyze the
solution to a substantial problem in that area. While student performance was
somewhat erratic in the past, we were very pleased this year with the skills
exhibited by our students in their senior exercises. (See remarks below on
senior exercises.)
The senior seminar helps students prepare for their senior exercise. Students
read research papers in different areas of computer science and prepare the
proposals for their senior exercise.
In the CS colloquium students are presented with current research in computer
science, experiences of alumni in the profession, and an overview of computer
science graduate school, all of which helps prepare them for life after Pomona.
- Goal 5 is assessed throughout our advanced courses. Many electives require
final projects that result in oral presentations and / or substantial written
reports. All seniors make presentations in the senior seminar on current
research in computer science. The final assessment of this goal, however, is
based on oral and written presentations of the results of the senior exercise.
Overall, our students have learned to make effective oral presentations. We have
also seen significant progress in written presentations, but would like to see
further improvement.
- Goal 6 is assessed by evaluating student understanding of research papers read
in CS 190, Senior Seminar. Students are also exposed to current research
developments by their required attendance at the Computer Science colloquium.
Based on our evaluations of student presentations and the questions asked of
colloquium speakers, we believe students are meeting this goal.
Assessing senior exercises
In response to perceived shortcomings in senior projects in the spring of 2007,
this year we provided students with clearer guidance on how their projects would
be assessed. As reported last year, Rett Bull, in consultation with other
departmental faculty, wrote a 50 page document, ``A guide through the senior
exercise'', that is provided to each senior major. The 2007 version of this
document is available at
http://www.cs.pomona.edu/classes/senior-exercise/2007/srexercise-online.pdf.
As stated in that document, senior exercises are assessed as follows:
“A student's grade in Computer Science 192 is determined by the Computer Science
faculty members who consider five components of the project: the goals of the
undertaking; the effort that went into achieving them; the 3 success of the
undertaking; the quality of the presentations, including the informal ones; and
the quality of the paper.
An A-range project is interesting, well conceived, ambitious, and successful.
There is a significant result, although it need not exactly match the original
goal of the project. Any obstacles that arise are handled thoughtfully and
creatively. All work is submitted on time. The presentation and the paper are
clear, polished, and well organized. In order to receive an A, all the
components —- conception, preparation, execution, presentation, and written work
—- must be of A quality.
A B-range project is fairly ambitious but only partly successful, or else it is
less ambitious and solidly successful. There are results, but they may be
incomplete or tentative. All the requirements and deadlines are met. The
presentation and the paper or thesis are clear and organized.
A C-range project is insubstantial or falls short of its goals; there are few
definite results. All the requirements are met, even if some of the work is a
little late. The presentation and the paper or thesis are disorganized or
occasionally muddled.
A failing project is poorly conceived and inadequately executed. It is lacking
substance that might lead to a solid and interesting conclusion. Some of the
work may be seriously late or missing altogether. The presentation and paper are
ungrammatical or difficult to follow.”
During the course of the year, we further refined our guidance on assessment to
make clearer to students the different factors that were to be assessed in order
to determine the final grade. The criteria are:
- The goal: Was it appropriately ambitious?
- The preparation: Did the literature review cover the appropriate prior work in
the area?
- The execution: Were sufficient efforts (quality and quantity both count) made
to accomplish the goal?
- The evaluation of results: Were appropriate steps taken to evaluate the
results?
- The presentations: Were the oral and written presentations clear,
understandable, and complete?
- Participation: Did the contributions and attendance during group meetings,
meetings with the advisor, and the final presentations meet faculty
expectations.
We believe that this clarification of criteria contributed to greatly improved
senior projects this year. While last year no one received a grade above B+,
this year we had several A level projects and two students were awarded
distinction on the basis of their senior projects.
Based on our discussions of the senior projects from this spring, Professor Bull
has made minor revisions to the ``Guide'' to include the criteria listed above.
We will also try to do a better job of emphasizing the importance of the written
presentations of student work, as that was one of the few areas that we felt
needed more attention. The newly revised 2008 version of the guidelines can be
found at
http://www.cs.pomona.edu/classes/senior-exercise/2008/srexercise-online.pdf.
All in all, we felt that our increased attention to the criteria for assessing
senior projects better communicated our expectations to the students and
resulted in much improved projects.
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