CS 5761 - Introduction to Natural Language Processing
Programming Assignment 3 - Demo in Lab on Monday, Feb 25 at 4pm
(submit code via email to email@example.com before lab)
To gain experience with spelling correction techniques and the
generally useful and powerful idea of dynamic programming.
Implement a program to compute the minimum edit distance of two words.
Assume the version of Levenshtein distance in which insertions and
deletions each has a cost of 1, and substitutions have a cost of 2.
(This is the algorithm presented in section 5.6 of the text.)
Your program should wait for the user to input two words. Then your
program should output the minimum edit distance between these words.
Your program should also display a table (similar to figure 5.6) that
shows the intermediate computations that your program made. Please make
sure this the table has a human-readable format (ie align columns, rows,
Do not assume that the length of the two words are the same. Be able to
handle the case where one word is longer than the other. Convert all alpha
input to lower case.
Policies (from syllabus)
All programming assignments and your project will be demonstrated during
designated lab sessions. You should also submit an electronic copy of
your source code to the TA prior to the designated demo session. (His
email address is firstname.lastname@example.org.) There is no other way to submit
your programming assignments or project. Failure to submit AND demo on
time will result in a zero.
Any code you submit should be commented. I must be able to understand
what your code does simply by reading the comments. This understanding
should extend down to the details of your code. So do not simply
describe the input and output, also include comments that describe
your particular algorithm and coding techniques. Failure to comment
to this degree will result in a zero.
All assignments and the project are to be done individually. You are
required to write your own code. Unless otherwise specified, you must
only turn in code that you personally wrote. The only possible exception
to this is if I tell you to use a module that is available in a book
or online archive. However, I will clearly indicate when this is
permissible. Violations of this policy will result in severe grading
penalties and/or failure in the class.