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A key challenge in fine-grained recognition is how to find and represent discriminative local regions. Recent attention models are capable of learning discriminative region localizers only from category labels with reinforcement learning. However, not utilizing any explicit part information, they are not able to accurately find multiple distinctive regions.(More)
In this paper, the Floquet theory is combined with harmonic balance for the in-depth analysis of a Chua’s family circuit, exhibiting intermittence. Floquet multipliers are calculated along the periodic solution paths obtained through harmonic balance by means of a continuation algorithm. The analysis of both the stable and unstable solution sections(More)
  • Errui Ding
  • Physical review. E, Statistical, nonlinear, and…
  • 2015
Lattice Boltzmann Stokesian dynamics (LBSD) is presented for simulation of particle suspension in Stokes flows. This method is developed from Stokesian dynamics (SD) with resistance and mobility matrices calculated using the time-independent lattice Boltzmann algorithm (TILBA). TILBA is distinguished from the traditional lattice Boltzmann method (LBM) in(More)
  • Errui Ding
  • Physical review. E, Statistical, nonlinear, and…
  • 2015
The time-independent lattice Boltzmann algorithm (TILBA) is developed to calculate the hydrodynamic interactions between two particles in a Stokes flow. The TILBA is distinguished from the traditional lattice Boltzmann method in that a background matrix (BGM) is generated prior to the calculation. The BGM, once prepared, can be reused for calculations for(More)
Imagery texts are usually organized as a hierarchy of several visual elements, i.e. characters, words, text lines and text blocks. Among these elements, character is the most basic one for various languages such as Western, Chinese, Japanese, mathematical expression and etc. It is natural and convenient to construct a common text detection engine based on(More)
  • Errui Ding
  • Physical review. E, Statistical, nonlinear, and…
  • 2009
A fast algorithm for computing the motion of solid particles suspended in fluid is presented. The motion of solid particles suspended in Stokes flow can be calculated without fully calculating the fluid motion. When the steady-state simulation is sufficient, this algorithm can greatly accelerate the simulation of solid particle suspension in Stokes flow.
  • Errui Ding
  • Physical review. E, Statistical, nonlinear, and…
  • 2014
A method is developed to calculate the drag and torque coefficients of an isolated particle in a Stokes flow. The method is based on solving the time-independent lattice-Boltzmann equation. The advantage of this method is that the algorithm is easy to code, the method can be applied to any shape of the particle without complicated implementation, and the(More)
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