Artificial Intelligence

1
Artificial Intelligence

• Section notes week 1
• September 18, 2008

2
About the TA and Section

• Jeff Moore
• Contact info is on the section web page
  http//www.fas.harvard.edu/lib220
• Section
• Mostly to prepare you to do the homework.
• Well also review topics from lecture, as
  necessary.
• Slides and other materials from section will be
  posted to the web page.

3
Homework Policies

• Submit your source code and a runtime transcript.
• Answer questions in comments in the source.
• Use the submit program on nice to submit your
  files electronically before class.
• Bring a printed, stapled copy to class on the due
  date.
• If the transcript is long, you can trim the
  repetitive bits.

4
Lisp Programming

• You have a choice.
• Write your programs on the Harvard machines, OR
• Write them on your machine, and upload to
  Harvard.
• In the end, you must test on nice.
• In either case, you need an FAS computer account.
• A link to the account activation page is on the
  section web page.
• Act soon!

5
Programming on nice

• One of several possible methods
• Log in to nice.harvard.edu with SecureCRT or ssh.
• Start emacs.
• Open or create a Lisp file Ctrl-x Ctrl-f
  filename.l
• Write some Lisp.
• Save Ctrl-x Ctrl-s
• Open a second buffer Ctrl-x Ctrl-2

6
Programming on nice

• Go to the new buffer Ctrl-x Ctrl-o
• Open a shell Esc x shell
• Prevent double echo stty -echo
• Run clisp clisp
• Load your program (load filename.l)
• Exercise your program.
• Save the evidence Ctrl-x Ctrl-s transcript.txt
• Exit emacs Ctrl-x Ctrl-c

7
Programming on nice

• Variations
• Try SLIME copy lib220/.emacs, and use Esc x
  slime instead of Esc x shell.
• Use script as described in the homework.
• If you have X Windows, you can tunnel it over
  ssh, and open multiple terminal windows.

8
Programming on your computer

• Download and install clisp.
• Write and test your code.
• Upload your code with a secure FTP program
  (SecureFX or SFTP).
• Test your code on nice.
• Make your transcript on nice.