Visited David Tax again to work on our collaborative AU analysis projects. We had plenty of good ideas. It always strikes me how much you can get done with a little bit of face to face time. We had a good discussion about the machine-learning aspect of the temporal analysis of AUs. At the moment our group is the only one working on this, but shortly we will announce the release date of our onset-apex-offset annotation on posed data. We hope this will stimulate research on this aspect of facial expression recognition.