257 search results - page 9 / 52 » Modeling Event Stream Hierarchies with Hierarchical Event Mo... |
PVLDB
2010
13 years 6 months ago
2010
Large-scale event systems are becoming increasingly popular in a variety of domains. Event pattern evaluation plays a key role in monitoring applications in these domains. Existin...
ICFEM
2009
Springer
13 years 5 months ago
2009
Springer
Abstract. This paper shows how Ptolemy II discrete-event (DE) models can be formally analyzed using Real-Time Maude. We formalize in Real-Time Maude the semantics of a subset of hi...
ICRA
2008
IEEE
14 years 2 months ago
2008
IEEE
— Simulation is frequently used in the study of multi-agent systems. Unfortunately, in many cases, it is not necessarily clear how faithfully the details of the simulated model r...
CVPR
2005
IEEE
14 years 9 months ago
2005
IEEE
We address the problem of temporal unusual event detection. Unusual events are characterized by a number of features (rarity, unexpectedness, and relevance) that limit the applica...
KDD
2007
ACM
14 years 8 months ago
2007
ACM
We consider the problem of estimating occurrence rates of rare events for extremely sparse data, using pre-existing hierarchies to perform inference at multiple resolutions. In pa...