Sciweavers

36781 search results - page 127 / 7357
» Parameterizing by the Number of Numbers
Sort
View
GFKL
2005
Springer
95views Data Mining» more  GFKL 2005»
14 years 3 months ago
An Indicator for the Number of Clusters: Using a Linear Map to Simplex Structure
Abstract. The problem of clustering data can be formulated as a graph partitioning problem. In this setting, spectral methods for obtaining optimal solutions have received a lot of...
Marcus Weber, Wasinee Rungsarityotin, Alexander Sc...
ICIAR
2005
Springer
14 years 3 months 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
ICIC
2005
Springer
14 years 3 months ago
Methods of Decreasing the Number of Support Vectors via k-Mean Clustering
This paper proposes two methods which take advantage of k -mean clustering algorithm to decrease the number of support vectors (SVs) for the training of support vector machine (SVM...
Xiao-Lei Xia, Michael R. Lyu, Tat-Ming Lok, Guang-...
ASIACRYPT
2001
Springer
14 years 2 months ago
The Modular Inversion Hidden Number Problem
We study a class of problems called Modular Inverse Hidden Number Problems (MIHNPs). The basic problem in this class is the following: Given many pairs xi, msbk (α + xi)−1 mod p...
Dan Boneh, Shai Halevi, Nick Howgrave-Graham
SACRYPT
1998
Springer
14 years 2 months ago
Computational Alternatives to Random Number Generators
In this paper, we present a simple method for generating random-based signatures when random number generators are either unavailable or of suspected quality (malicious or accident...
David M'Raïhi, David Naccache, David Pointche...