Zobrazeno 1 - 10
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pro vyhledávání: '"Tan, P S"'
Publikováno v:
Computers in Biology and Medicine, vol. 176, June 2024, 108605
In this work, we study various hybrid models of entropy-based and representativeness sampling techniques in the context of active learning in medical segmentation, in particular examining the role of UMAP (Uniform Manifold Approximation and Projectio
Externí odkaz:
http://arxiv.org/abs/2312.10361
G34.26+0.15 is a region of high-mass star formation that contains a broad range of young stellar objects in different stages of evolution, including a hot molecular core, hyper-compact HII regions and a prototypical cometary ultra-compact HII region.
Externí odkaz:
http://arxiv.org/abs/2306.07394
Autor:
Tan, Linda S. L., Chen, Aoxiang
Gaussian distributions are widely used in Bayesian variational inference to approximate intractable posterior densities, but the ability to accommodate skewness can improve approximation accuracy significantly, when data or prior information is scarc
Externí odkaz:
http://arxiv.org/abs/2306.02813
Autor:
Tan, H. S.
Publikováno v:
Class. Quantum Grav. 40 195010, 2023
In this work, we study the shadow boundary curves of rotating time-dependent black hole solutions which have well-defined Kerr and Vaidya limits. These solutions are constructed by applying the Newman-Janis algorithm to a spherically symmetric seed m
Externí odkaz:
http://arxiv.org/abs/2301.04967
Autor:
Tan, Linda S. L.
In stochastic variational inference, use of the reparametrization trick for the multivariate Gaussian gives rise to efficient updates for the mean and Cholesky factor of the covariance matrix, which depend on the first order derivative of the log joi
Externí odkaz:
http://arxiv.org/abs/2210.10566
Effects of finite-temperature quasiparticle self-energy corrections to x-ray absorption spectra are investigated within the finite-temperature quasiparticle local density GW approximation up to temperatures $T$ of order the Fermi temperature. To faci
Externí odkaz:
http://arxiv.org/abs/2208.02390
Autor:
Wrighton, Jeffrey, Albavera-Mata, Angel, Rodriguez, Hector Francisco, Tan, Tun S., Cancio, Antonio C., Dufty, J. W., Trickey, S. B.
Though calculations based on density functional theory (DFT) are used remarkably widely in chemistry, physics, materials science, and biomolecular research and though the modern form of DFT has been studied for almost 60 years, some mathematical prob
Externí odkaz:
http://arxiv.org/abs/2207.02213
Autor:
Tan, Linda S. L.
Natural gradients can improve convergence in stochastic variational inference significantly but inverting the Fisher information matrix is daunting in high dimensions. Moreover, in Gaussian variational approximation, natural gradient updates of the p
Externí odkaz:
http://arxiv.org/abs/2109.00375
The real-space Green's function code FEFF has been extensively developed and used for calculations of x-ray and related spectra, including x-ray absorption (XAS), x-ray emission (XES), inelastic x-ray scattering, and electron energy loss spectra (EEL
Externí odkaz:
http://arxiv.org/abs/2106.13334
Autor:
Shuvo, Onic I., Araya, E. D., Tan, W. S., Hofner, P., Kurtz, S., Pihlstrom, Y. M., Hoffman, I. M.
Spectral lines from formaldehyde (H2CO) molecules at cm wavelengths are typically detected in absorption and trace a broad range of environments, from diffuse gas to giant molecular clouds. In contrast, thermal emission of formaldehyde lines at cm wa
Externí odkaz:
http://arxiv.org/abs/2103.14492