Datong Chen Ming-yu Chen Howard D. Wactlar Can Gao Ashok Bharucha Video measurement of resident-on-resident physical aggression in nursing homes. 61-68 2008 VNBA http://doi.acm.org/10.1145/1461893.1461905 conf/mm/2008vnba db/conf/mm/vnba2008.html#ChenCWGB08