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VTC
2006
IEEE
103views Communications» more  VTC 2006»
16 years 1 months ago
Codeword Length Optimization for CPPUWB Systems
— The optimal codeword length that generates the maximum output signal to interference ratio (SIR) for the channel-phase-precoded ultra-wideband (CPPUWB) system proposed in [1] i...
Yu-Hao Chang, Shang-Ho Tsai, Xiaoli Yu, C. C. Jay ...
ICIAR
2005
Springer
16 years 20 days ago
Estimating the Natural Number of Classes on Hierarchically Clustered Multi-spectral Images
Image classification is often used to extract information from multi-spectral satellite images. Unsupervised methods can produce results well adjusted to the data, but that are us...
André R. S. Marçal, Janete S. Borges
RSFDGRC
2005
Springer
112views Data Mining» more  RSFDGRC 2005»
16 years 19 days ago
Discovering Characteristic Individual Accessing Behaviors in Web Environment
Abstract. Discovering diverse individual accessing behaviors in web environment is required before mining the valuable patterns from behaviors of groups of visitors. In this paper,...
Long Wang 0002, Christoph Meinel, Chunnian Liu
ICDM
2002
IEEE
123views Data Mining» more  ICDM 2002»
16 years 3 days ago
Towards Automatic Generation of Query Taxonomy: A Hierarchical Query Clustering Approach
Previous works on automatic query clustering most generate a flat, un-nested partition of query terms. In this work, we are pursuing to organize query terms into a hierarchical s...
Shui-Lung Chuang, Lee-Feng Chien
TSD
2001
Springer
15 years 11 months ago
A New Czech Morphological Analyser ajka
This paper deals with the effective implementation of the new Czech morphological analyser ajka which is based on the algorithmic description of the Czech formal morphology. First...
Radek Sedlácek, Pavel Smrz