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» On Polynomial Time Computation over Unordered Structures
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TKDE
2008
158views more  TKDE 2008»
13 years 8 months ago
Hierarchical Clustering of Time-Series Data Streams
This paper presents a time series whole clustering system that incrementally constructs a tree-like hierarchy of clusters, using a top-down strategy. The Online Divisive-Agglomera...
Pedro Pereira Rodrigues, João Gama, Jo&atil...
ICDT
2010
ACM
137views Database» more  ICDT 2010»
13 years 7 months ago
A Greedy Algorithm for Constructing a Low-Width Generalized Hypertree Decomposition
We propose a greedy algorithm which, given a hypergraph H and a positive integer k, produces a hypertree decomposition of width less than or equal to 3k −1, or determines that H...
Kaoru Katayama, Tatsuro Okawara, Yuka Itou
ICIP
2006
IEEE
14 years 10 months ago
FPGA Architecture for Real-Time Video Noise Estimation
This paper proposes a hardware architecture of a video noise estimation algorithm capable of real-time processing. The objectives consist of adapting a computationally demanding n...
Francois-Xavier Lapalme, Aishy Amer, Chunyan Wang
IVA
2009
Springer
14 years 3 months ago
A Combined Semantic and Motion Capture Database for Real-Time Sign Language Synthesis
Over the past decade, motion capture data has become a popular research tool, and motion databases have grown exponentially. Indexing, querying, and retrieving data has thus become...
Charly Awad, Nicolas Courty, Kyle Duarte, Thibaut ...
STOC
1992
ACM
100views Algorithms» more  STOC 1992»
14 years 27 days ago
Biased Random Walks
How much can an imperfect source of randomness affect an algorithm? We examine several simple questions of this type concerning the long-term behavior of a random walk on a finite...
Yossi Azar, Andrei Z. Broder, Anna R. Karlin, Nath...