123 search results - page 17 / 25 » A Data Imputation Model in Sensor Databases |
SIGMOD
2009
ACM
14 years 7 months ago
2009
ACM
We consider the Outsourced Aggregation model, where sensing services outsource their sensor data collection and aggregation tasks to third-party service providers called aggregato...
ICPR
2010
IEEE
14 years 29 days ago
2010
IEEE
Abstract—Due to their ability to model sequential data without making unnecessary independence assumptions, conditional random fields (CRFs) have become an increasingly popular ...
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
Real-time surveillance systems, network and telecommunication systems, and other dynamic processes often generate tremendous (potentially infinite) volume of stream data. Effectiv...
SIGMOD
2004
ACM
14 years 1 months ago
2004
ACM
Data items are often associated with a location in which they are present or collected, and their relevance or in uence decays with their distance. Aggregate values over such data...
BMVC
1998
13 years 9 months ago
1998
We present a method for learning appearance models that can be used to recognise and track both 3D head pose and identities of novel subjects with continuous head movement across ...