TY - GEN
T1 - Coaction discovery
T2 - 12th International Workshop on Multimedia Data Mining, MDMKDD 2012 - Held in Conjunction with SIGKDD 2012
AU - Xiong, Caiming
AU - Corso, Jason J.
PY - 2012
Y1 - 2012
N2 - We introduce a new problem called coaction discovery: the task of discovering and segmenting the common actions (coactions) between videos that may contain several actions. This paper presents an approach for coaction discovery; the key idea of our approach is to compute an action proposal map for each video based jointly on dynamic object-motion and static appearance semantics, and unsupervisedly cluster each video into atomic action clips, called actoms. Subsequently, we use a temporally coherent discriminative clustering framework for extracting the coactions. We apply our coaction discovery approach to two datasets and demonstrate convincing and superior performance to three baseline methods.
AB - We introduce a new problem called coaction discovery: the task of discovering and segmenting the common actions (coactions) between videos that may contain several actions. This paper presents an approach for coaction discovery; the key idea of our approach is to compute an action proposal map for each video based jointly on dynamic object-motion and static appearance semantics, and unsupervisedly cluster each video into atomic action clips, called actoms. Subsequently, we use a temporally coherent discriminative clustering framework for extracting the coactions. We apply our coaction discovery approach to two datasets and demonstrate convincing and superior performance to three baseline methods.
KW - coaction discovery
KW - discriminative clustering
KW - time series clustering
UR - http://www.scopus.com/inward/record.url?scp=84866007617&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84866007617&partnerID=8YFLogxK
U2 - 10.1145/2343862.2343865
DO - 10.1145/2343862.2343865
M3 - Conference contribution
AN - SCOPUS:84866007617
SN - 9781450315562
T3 - Proceedings of the ACM SIGKDD International Conference on Knowledge Discovery and Data Mining
SP - 17
EP - 24
BT - Proceedings of the 12th International Workshop on Multimedia Data Mining, MDMKDD'12 - Held in Conjunction with SIGKDD'12
Y2 - 12 August 2012 through 12 August 2012
ER -