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MOBIHOC
2004
ACM
14 years 8 months ago
Error characteristics of ad hoc positioning systems (aps)
APS algorithms use the basic idea of distance vector routing to find positions in an ad hoc network using only a fraction of landmarks, for example GPS enabled nodes. All the node...
Dragos Niculescu, Badri Nath
E4MAS
2004
Springer
14 years 2 months ago
Environments for Multiagent Systems State-of-the-Art and Research Challenges
It is generally accepted that the environment is an essential compound of multiagent systems (MASs). Yet the environment is typically assigned limited responsibilities, or even neg...
Danny Weyns, H. Van Dyke Parunak, Fabien Michel, T...
ICIP
2005
IEEE
14 years 2 months ago
HMM-based motion recognition system using segmented PCA
In this paper, we propose a novel technique for modelbased recognition of complex object motion trajectories using Hidden Markov Models (HMM). We build our models on Principal Com...
Faisal I. Bashir, Wei Qu, Ashfaq A. Khokhar, Dan S...
COMPGEOM
2011
ACM
13 years 12 days ago
An output-sensitive algorithm for persistent homology
In this paper, we present the first output-sensitive algorithm to compute the persistence diagram of a filtered simplicial complex. For any Γ > 0, it returns only those homo...
Chao Chen, Michael Kerber
ICDE
2009
IEEE
135views Database» more  ICDE 2009»
14 years 10 months ago
Forward Decay: A Practical Time Decay Model for Streaming Systems
Temporal data analysis in data warehouses and data streaming systems often uses time decay to reduce the importance of older tuples, without eliminating their influence, on the res...
Graham Cormode, Vladislav Shkapenyuk, Divesh Sriva...