Meeting Minutes

Date:	September 8, 2011
Location:	DC 1331
Time:	11:30
Chair:	Jamie Ruiz

1. Attendance

2. Coffee Hour

Coffee hour last week:: Matt- thanks!
Coffee hour this week:: Jiame
Coffee hour next week:: Volunteers?

3. Forthcoming

Date:	September 15, 2011	September 22, 2011	September 29, 2011	October, 6, 2011
Location:	DC 1331 11:30	DC 1331 11:30	DC 1331 11:30	DC 1331 11:30
Chair:	Mike Terry	Matthew Thorne	Dan Vogel	Zainab AlMeraj
Technical Presentation:	Alex Pytel	Mike Terry	Matthew Thorne	Dan Vogel

4. Technical Presentation

Matei Negulescu	Title : A Recognition Safety Net: Bi-Level Abstract: Designers of motion gestures for mobile devices face the difficult challenge of building a recognizer that can separate gestural input from motion noise. A threshold value is used to classify motion and effectively balances the rates of false positives and false negatives. We present a bi-level threshold recognizer that is built to lower the rate of recognition failures by accepting either a tightly thresholded gesture or two consecutive possible gestures recognized by a looser model. We evaluate bi-level thresholding with a pilot study in order to gauge its effectiveness as a recognition safety net for users who have difficulty activating a motion gesture. Lastly, we suggest the use of bi-level thresholding to scaffold learning of motion gestures.

Matei Negulescu

Title : A Recognition Safety Net: Bi-Level
Abstract:
Designers of motion gestures for mobile devices face the difficult challenge of building a recognizer that can separate gestural input from motion noise. A threshold value is used to classify motion and effectively balances the rates of false positives and false negatives. We present a bi-level threshold recognizer that is built to lower the rate of recognition failures by accepting either a tightly thresholded gesture or two consecutive possible gestures recognized by a looser model. We evaluate bi-level thresholding with a pilot study in order to gauge its effectiveness as a recognition safety net for users who have difficulty activating a motion gesture. Lastly, we suggest the use of bi-level thresholding to scaffold learning of motion gestures.

5. Discussion Items

Supernova. See with strong binoculars for the next few nights. Near the handle of the Big Dipper.
Piazza for cgl? Craig says "No."

6. Action Items

Send PDF of recent posters to Steve.
Coffee Hour at 4:30 in the fall?

7. Conferences and Special Journal Issues

Recent Additions

Eurographics12

Upcoming Deadlines

8. Directors' Meeting

9. Seminars and Events

2011 Sep 13, 13:30 � Database Research Group PhD Thesis Defence

Chen Zhang, PhD candidate, David R. Cheriton School of Comp. Sci., Univ. Waterloo Enhancing data processing on clouds with Hadoop/HBase

Also see other Math and CS postings.