Would be delighted to end up with the smaller class of 15.
The more likely scenario, per current interest is as below.
On September 16, this will be adjusted to its final state.
The overflow notes below are for the case where the current
over-enrolment of 23 students is sustained (3 unusual dates).

September 8 Introduction to course, Introduction to AI, XAI Sneak Peak
September 15  Intro to Trust Modeling and Explanation; Guest Speaker
September 22 First Presentations (7)
September 29 First Presentations (7)
October 6 First Presentations (7) (if overflow, then (8) and ends 1220)
October 20 Intro to social networking; Guest speakers 
(if overflow, then after guests one first-half and two second-half presentations)
October 27 Second Presentations (7)
November 3 Second Presentations (7)
November 10 Second Presentations (7)
November 17 In-Class Group Exercise
November 24 Project Presentations (14)
December 1 Project Presentations (7) (if overflow then (9)); Wrap up of course
December 4 (NO CLASS) Final projects due 11am ** No Extensions **

Note that end of September 15 class we will sort first-half timeslots.
Sometime during Oct 6 class, second-half timeslots will be settled.