@conference {14175, title = {Discovering a language for human activity}, booktitle = {Proceedings of the AAAI 2005 Fall Symposium on Anticipatory Cognitive Embodied Systems, Washington, DC}, year = {2005}, month = {2005///}, author = {Guerra-Filho,G. and Ferm{\"u}ller, Cornelia and Aloimonos, J.} }