I enjoyed the AAAI context activity workshop a lot.
The keynote How to make Face Recognition work (pdf) by Ashis Kapoor showed how to increase face recognition introducing very simple “context” constrains (two people in the same image cannot be the same person etc.). Very interesting work, I wonder how much better you can get introducing some more dynamic context recognition to the face recognition task.
Gail Murphy gave the other keynote Task Context for Knowledge Workers (pdf). She introduces context modelling for tasks in GTD scenarios. Also quite interesting, as completely complimentary to my work (no mobile clients, sensors etc.).
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