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» Undecidability over Continuous Time
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UAI
2008
13 years 10 months ago
Continuous Time Dynamic Topic Models
In this paper, we develop the continuous time dynamic topic model (cDTM). The cDTM is a dynamic topic model that uses Brownian motion to model the latent topics through a sequenti...
Chong Wang, David M. Blei, David Heckerman
IPMI
1999
Springer
14 years 9 months ago
Continuous Time Dynamic PET Imaging Using List Mode Data
Abstract. We describe a method for computing a continuous time estimate of dynamic changes in tracer density using list mode PET data. The tracer density in each voxel is modeled a...
Thomas E. Nichols, Jinyi Qi, Richard M. Leahy
ICMCS
2007
IEEE
115views Multimedia» more  ICMCS 2007»
14 years 2 months ago
Time-Aware Opportunistic Relay for Video Streaming Over WLANs
Robust video streaming over time-varying, error-prone wireless LANs (WLANs) poses many challenges. In this paper, we present a Time-based Opportunistic Relay (TOR) scheme for high...
Mei-Hsuan Lu, Peter Steenkiste, Tsuhan Chen
ICDE
2008
IEEE
139views Database» more  ICDE 2008»
14 years 10 months ago
Simultaneous Equation Systems for Query Processing on Continuous-Time Data Streams
We introduce Pulse, a framework for processing continuous queries over models of continuous-time data, which can compactly and accurately represent many real-world activities and p...
Jennie Rogers, Olga Papaemmanouil, Ugur Çet...
DASFAA
2007
IEEE
202views Database» more  DASFAA 2007»
14 years 2 months ago
Optimizing Moving Queries over Moving Object Data Streams
With the increasing in demand on location-based aware services and RFIDs, efficient processing of continuous queries over moving object streams becomes important. In this paper, w...
Dan Lin, Bin Cui, Dongqing Yang