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ICPR
2008
IEEE
15 years 11 months ago
Linear time recognition algorithms for topological invariants in 3D
In this paper, we design linear time algorithms to recognize and determine topological invariants such as genus and homology groups in 3D. These invariants can be used to identify...
Li Chen, Yongwu Rong
RTSS
2007
IEEE
15 years 10 months ago
Distributed Minimal Time Convergecast Scheduling for Small or Sparse Data Sources
— Many applications of sensor networks require the base station to collect all the data generated by sensor nodes. As a consequence many-to-one communication pattern, referred to...
Ying Zhang, Shashidhar Gandham, Qingfeng Huang
VTC
2007
IEEE
15 years 10 months ago
A Novel Timing and Frequency Offset Estimation Scheme for OFDM Systems
— A novel structure of training symbol is proposed for orthogonal frequency division multiplexing (OFDM) systems. With the proposed training symbol, which has repeated sample blo...
Shun-Sheng Wang, Chih-Peng Li, Chin-Liang Wang
ISMIR
2005
Springer
176views Music» more  ISMIR 2005»
15 years 10 months ago
On the Modeling of Time Information for Automatic Genre Recognition Systems in Audio Signals
The creation of huge databases coming from both restoration of existing analogue archives and new content is demanding fast and more and more reliable tools for content analysis a...
Nicolas Scaringella, Giorgio Zoia
VISUALIZATION
2003
IEEE
15 years 9 months ago
A Texture-Based Framework for Spacetime-Coherent Visualization of Time-Dependent Vector Fields
We propose Unsteady Flow Advection–Convolution (UFAC) as a novel visualization approach for unsteady flows. It performs time evolution governed by pathlines, but builds spatial...
Daniel Weiskopf, Gordon Erlebacher, Thomas Ertl