Tianqi Wu

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In this paper, we introduce a definition of discrete conformality for triangulated surfaces with flat cone metrics and describe an algorithm for solving the problem of prescribing curvature, that is to deform the metric discrete conformally so that the curvature of the resulting metric coincides with the prescribed curvature. We explicitly construct a(More)
By adopting the distributed problem-solving strategy, swarm intelligence algorithms have been successfully applied to many optimization problems that are difficult to deal with using traditional methods. At present, there are many well-implemented algorithms, such as particle swarm optimization, genetic algorithm, artificial bee colony algorithm, and ant(More)
As a novel learning algorithm for a single hidden-layer feedforward neural network, the extreme learning machine has attracted much research attention for its fast training speed and good generalization performances. Instead of iteratively tuning the parameters, the extreme machine can be seen as a linear optimization problem by randomly generating the(More)
Methylphenidate (MPH) is a central nervous system stimulant that is widely used to treat attention deficit hyperactivity disorder (ADHD) and has been shown to improve attention, cognitive function and behaviors in both patients and animal models of ADHD. Even among normal healthy people, MPH can facilitate the consolidation of memories and improve(More)
  • JIAOYANG HUANG, ANDREW SENGER, PETER WEAR, TIANQI WU
  • 2014
Let be a partition, viewed as a Young diagram. We define the hook di↵erence of a cell of to be the di↵erence of its leg and arm lengths. Define h 1,1 () to be the number of cells of with hook di↵erence one. In [BF], algebraic geometry is used to prove a generating function identity which implies that h 1,1 is equidistributed with a 2 , the largest part of a(More)
In this study we studied the impedance of electrochemical cells, a characteristic property of such systems, for several one-dimensional and two-dimensional mathematical models, both analytically and numerically. In the 1D models we solved for the impedance, rst under a simplifying assumption, and then exactly. We then used-nite dierence method to solve the(More)
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