Old Announcements

CS 280 - Spring 2002

The most recent are listed first.

• In honor of the upcoming exam, Alexa Sharp has volunteered to extend her office "hour" for this Thursday.  
  She will be in Upson 328 from 2:30 to 4:30 or 5, or whenever people stop asking questions.
• Answers to Review Questions for Prelim II are now online
• hw06sol.pdf and hw07sol.pdf are now online
• Market Basket Data (a pdf file) is now online. These are the transparencies used in lecture on Friday, March 29. The example for Strategy 4 has now (4:13pm, April 1) been corrected.
• Review Questions for Prelim II are now online
• There will be no homework due on Friday, April 5 because that's the day of our second prelim
• The following two papers are the source for the lecture material on Market Basket Data:
  • R. Agrawal, T. Imielinski, A. Swami. "Mining Associations between Sets of Items in Massive Databases" (1993)
  • R. Agrawal, R. Srikant. "Fast Algorithms for Mining Association Rules" (1994)
• HW7 is now online
• hw05sol.pdf is now online.
• HW6 is now online.
• A midterm course evaluation will be given in class on Wednesday (March 13).  Suggestions or comments about the course are welcome.
• Pigeonhole Problems (the pseudo-quiz given in lecture on Friday, March 1) and their solutions are now online.
• HW5 is now online.
• HW4 Solution is now online.
• Paul Chew's office hour (10:30 - 11:30) for Thursday, February 28 is cancelled.
• Prelim I Solutions are now online.  Please let Paul Chew know (chew@cs.cornell.edu) if you find any errors.
• HW4 (due Friday, March 1) is now online.
• Answers to Review for Prelim I have been corrected.  Two mistakes were pointed out during Wednesday's lecture.  These have been corrected in the online version.  A third mistake has been found: in problem 2b, 4 was accidentally used in place of 5.  Curiously, the final answer was unaffected by this mistake.
• Alexa Sharp will hold her Thursday office hour in Upson 328 instead of her office.  This is a permanent change for her Thursday office hour; her Tuesday office hour remains in her office.  Also, in honor of the upcoming exam, she has volunteered to extend her "hour" for this Thursday to 2:00-3:45.
• Answers to Review for Prelim I are now online.
• Review Questions for Prelim I are online.  The answers will be posted before Wednesday's class (probably late Tuesday).
• hw03sol.pdf is now online
• If you have not picked up your homework or if you have submitted a regrade request, those papers are available during Paul Chew's office hours.
• hw02sol.pdf is now online.
• Problem 5b on HW3 had a typo.  It has been corrected to "Show that 5 | (n⁵ + 4n) for any n."  The exponent originally appeared incorrectly as 4 instead of 5.
• HW3 (due Friday, Feb 15) is online.
• Wednesday (Feb 6) Lecture on Growth of Functions and Complexity of Algorithms is online.
• hw01sol (a .pdf file) is now online.
• HW2 (due Friday, Feb 8) is now online.
• Office hours have been determined, but rooms are still being reserved.  The room information will be posted as soon as it is known.
• HW1 (due Friday, Feb 1) is now online.
• To simplify the process of distributing papers for grading, each homework will consist of 3 parts.  Each part must be turned in separately.  In other words, each of parts A, B, and C will be placed in separate piles when homework is handed in on Friday.
• Normally, graded homework is handed back in a self-service stack.  In other words, your homework grade is not private. If you prefer more privacy, clearly mark HOLD at the top of the first page of each piece (A, B, and C) of your homework; I will hold these papers for pick-up during my office hours.