Ch. Eick Project3 Q&A 1. What is Opus Search? Why were the results obtained using Opus Search more insightful, compared to Apriori? 2. Did the confidence/lift/support displays shed some light on any issues in using association rules mining? 3. Many approaches could only get simple 2-condition rules; what is the reason for this? 4. Pruning of redundant rules—did it help? 5. Most association rule packages offer all (e.g aruleviz) kind a visualization tools; are those visualization tools just snick snack or are the useful for association rule mining? 6. What is the maturity of association rule mining tools? Comment on their usefulness to solve real world problems. 7. Most alternatives to Apriori seem to work on transaction- based data structures. Any comments on the merit of this approach?

Ch. Eick Project3 Q&A 8. Did you come across any success stories about association rule mining? If yes, what were the stories? 9. Any comment on the maturity of graph mining tools? 10. Did the association analysis tools you used meet your expectations? If not, what was missing? 11. Did you observe any new trends in the area of association analysis? Is there anything promising on the horizon? 12. Is there anything that should additionally be taught when covering association analysis in the course.

Ch. Eick Some Comments on Project3 Reports reports fail to introduce the group’s topic at all or it is not explained transparently. 2. Writing a report is like telling an interesting story 3. Some reports spend 2-3 pages introducing algorithms that have been covered in the lecture—this is not necessary, unless the introduction is necessary for comparison purposes. 4. Some fail to introduce clearly what association analysis tools were used in experiments and/or what parameters were used in the experiment. 5. Some discussions switch between topics and sometimes the same topic is discussed more than once.