1. Video Processing Steps Face Detection Activity Recognition1
Steps
Face Detection
Activity Recognition
Agenda Participation t 3 2
t + 1
t + 2 …

2. MGIST Log File Format Features 1 2 4 3
Each entry is a category, type, name, value tuple
Log file starts with meeting and person immutables
Then lists meeting and person mutables
Mutables in frame-by-frame format 1 2 4
Features
Schema-based
Extensible
Modular 3

3. MGIST Query Language Features of the Language Example Usage
Definable Variables
Definable, Re-usable Functions
Supports Combined Queries
Example Usage
Get all frames where Paul is standing in the last 2 minutes of the meeting.
Define Variable
Function Input
Define Function
Use Pre-Defined Variable
Run Query
Query Combination

4. MGIST Queries in Action
<insert video of selecting a person standing via GUI>
<insert video of query involving agenda via GUI>
<insert video of combination query via text file>