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21 papers · 1 filter
Fitness-driven deactivation in network evolution
Xin-Jian Xu, Xiao-Long Peng, Michael Small +1
Individual nodes in evolving real-world networks typically experience growth and decay --- that is, the popularity and influence of individuals peaks and then fades. In this paper,…
Perturbational Blowup Solutions to the 1-dimensional Compressible Euler Equations
Manwai Yuen
We study the construction of analytical non-radially solutions for the 1-dimensional compressible adiabatic Euler equations in this article. We could design the perturbational meth…
Perturbational Blowup Solutions to the 2-Component Camassa-Holm Equations
Manwai Yuen
In this article, we study the perturbational method to construct the non-radially symmetric solutions of the compressible 2-component Camassa-Holm equations. In detail, we first co…
Automatic Image Segmentation by Dynamic Region Merging
Bo Peng, Lei Zhang, David Zhang
This paper addresses the automatic image segmentation problem in a region merging style. With an initially over-segmented image, in which the many regions (or super-pixels) with ho…
Image Deblurring and Super-resolution by Adaptive Sparse Domain Selection and Adaptive Regularization
Weisheng Dong, Lei Zhang, Guangming Shi +1
As a powerful statistical image modeling technique, sparse representation has been successfully used in various image restoration applications. The success of sparse representation…
The automorphism group of separable states in quantum information theory
Shmuel Friedland, Chi-Kwong Li, Yiu-Tung Poon +1
We show that the linear group of automorphism of Hermitian matrices which preserves the set of separable states is generated by \emph{natural} automorphisms: change of an orthonorm…