28 search results - page 2 / 6 » Efficient incremental algorithms for dynamic detection of li... |
CVPR
2010
IEEE
14 years 1 months ago
2010
IEEE
A novel method for crowd flow modeling and anomaly detection is proposed for both coherent and incoherent scenes. The novelty is revealed in three aspects. First, it is a unique ut...
SIGMOD
2004
ACM
14 years 5 months ago
2004
ACM
Mining informative patterns from very large, dynamically changing databases poses numerous interesting challenges. Data summarizations (e.g., data bubbles) have been proposed to c...
WWW
2007
ACM
14 years 5 months ago
2007
ACM
Given a large online network of online auction users and their histories of transactions, how can we spot anomalies and auction fraud? This paper describes the design and implemen...
CVPR
2009
IEEE
15 years 3 days ago
2009
IEEE
Actions are spatio-temporal patterns which can be characterized
by collections of spatio-temporal invariant features.
Detection of actions is to find the re-occurrences
(e.g. th...
GISCIENCE
2010
Springer
13 years 5 months ago
2010
Springer
Wireless sensor networks are deployed to monitor dynamic geographic phenomena, or objects, over space and time. This paper presents a new spatiotemporal data model for dynamic area...