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CVPR
2011
IEEE
13 years 2 months ago
Sparse Reconstruction Cost for Abnormal Event Detection
We propose to detect abnormal events via a sparse reconstruction over the normal bases. Given an over-complete normal basis set (e.g., an image sequence or a collection of local s...
Yang Cong, Junsong Yuan, Ji Liu
KDD
2009
ACM
156views Data Mining» more  KDD 2009»
14 years 8 months ago
Query result clustering for object-level search
Query result clustering has recently attracted a lot of attention to provide users with a succinct overview of relevant results. However, little work has been done on organizing t...
Jongwuk Lee, Seung-won Hwang, Zaiqing Nie, Ji-Rong...
ICASSP
2009
IEEE
14 years 2 months ago
Unsupervised acoustic and language model training with small amounts of labelled data
We measure the effects of a weak language model, estimated from as little as 100k words of text, on unsupervised acoustic model training and then explore the best method of using ...
Scott Novotney, Richard M. Schwartz, Jeff Ma
IROS
2008
IEEE
126views Robotics» more  IROS 2008»
14 years 1 months ago
An optical external localization system and applications to indoor tracking
— Precise robot positioning is important for many applications in indoor environments. Current solutions to the indoor localization problem are either both unreliable and inaccur...
Srujan Linga, Binayak Roy, H. Harry Asada, Daniela...
AVSS
2007
IEEE
13 years 11 months ago
A LQR spatiotemporal fusion technique for face profile collection in smart camera surveillance
In this paper, we propose a joint face orientation estimation in smart camera networks without having to localize the cameras in advance. The system is composed of in-node coarse ...
Chung-Ching Chang, Hamid K. Aghajan