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Hybrid density functionals replace a fraction of an underlying generalized-gradient approximation (GGA) exchange description with a Fock-exchange component. Range-separated hybrids (RSHs) also effectively screen the Fock-exchange component…

材料科学 · 物理学 2022-01-05 Vivekanand Shukla , Yang Jiao , Carl Frostenson , Per Hyldgaard

We present the results of calculations on bulk transition metals Rh, Pd, and Pt using the screened hybrid functional YS-PBE0 [F. Tran and P. Blaha, Phys. Rev. B \textbf{83}, 235118 (2011)]. The results for the equilibrium geometry are…

材料科学 · 物理学 2012-10-11 Fabien Tran , David Koller , Peter Blaha

Machine Learning (ML) architectures have been applied to several applications that involve sensitive data, where a guarantee of users' data privacy is required. Differentially Private Stochastic Gradient Descent (DPSGD) is the…

机器学习 · 计算机科学 2023-03-06 Ayoub Arous , Amira Guesmi , Muhammad Abdullah Hanif , Ihsen Alouani , Muhammad Shafique

Multi-configurational wave functions are known to describe electronic structure across a Born-Oppenheimer surface qualitatively correct. However, for quantitative reaction energies, dynamical correlation originating from the many…

化学物理 · 物理学 2020-04-16 Christopher J. Stein , Markus Reiher

Approximation of scattered data is often a task in many engineering problems. The Radial Basis Function (RBF) approximation is appropriate for large scattered datasets in d-dimensional space. It is non-separable approximation, as it is…

数值分析 · 数学 2018-06-13 Zuzana Majdisova , Vaclav Skala

Consider solving large sparse range symmetric singular linear systems $ A {\bf x}= {\bf b} $ which arise, for instance, in the discretization of convection diffusion equations with periodic boundary conditions, and partial differential…

数值分析 · 数学 2022-11-02 Kota Sugihara , Ken Hayami , Liao Zeyu

Using seven semiconductors/insulators with band gaps covering the range from 1 eV to 10 eV we systematically explore the performance of two different variants of self-consistency associated with famous Hedin's system of equations: the full…

材料科学 · 物理学 2022-01-20 Andrey L. Kutepov

The Molecular Distance Geometry Problem (MDGP) is essential in structural biology, as it seeks to determine three-dimensional protein structures from partial interatomic distances. Its discretizable subclass (DMDGP) admits an exact…

最优化与控制 · 数学 2025-10-24 Leonardo D. Secchin , Wagner da Rocha , Mariana da Rosa , Leo Liberti , Carlile Lavor

Predicting accurate band gaps and optical properties of lower-dimensional materials, including two-dimensional van der Waals (vdW) materials and their heterostructures, remains a challenge within density functional theory (DFT) due to their…

材料科学 · 物理学 2025-07-24 Arghya Ghosh , Subrata Jana , Manoar Hossain , Dimple Rani , Szymon Śmiga , Prasanjit Samal

Using Green-function many-body theory, we present the details of a formally exact adiabatic-connection fluctuation-dissipation density-functional theory based on range separation, which was sketched in Toulouse, Gerber, Jansen, Savin and…

化学物理 · 物理学 2010-09-13 Julien Toulouse , Wuming Zhu , Janos G. Angyan , Andreas Savin

Depth information available from an RGB-D camera can be useful in segmenting salient objects when figure/ground cues from RGB channels are weak. This has motivated the development of several RGB-D saliency datasets and algorithms that use…

计算机视觉与模式识别 · 计算机科学 2020-10-27 Yue Wang , Yuke Li , James H. Elder , Huchuan Lu , Runmin Wu , Lu Zhang

This paper studies dual-hop amplify-and-forward relaying system employing differential encoding and decoding over time-varying Rayleigh fading channels. First, the convectional "two-symbol" differential detection (CDD) is theoretically…

信息论 · 计算机科学 2014-07-08 M. R. Avendi , Ha H. Nguyen

Accurately modeling the electronic structure of materials is a persistent challenge to high-throughput screening. A promising means of balancing accuracy against computational cost are non-self-consistent calculations with hybrid…

材料科学 · 物理学 2020-05-04 Jonathan M. Skelton , David S. D. Gunn , Sebastian Metz , Stephen C. Parker

In this communication, we represent a self-consistent systematic optimization procedure for the development of optimally tuned (OT) range-separated hybrid (RSH) functionals from \emph{first principles}. This is an offshoot of our recent…

化学物理 · 物理学 2022-05-24 Abhisek Ghosal , Amlan K. Roy

We derive minimax testing errors in a distributed framework where the data is split over multiple machines and their communication to a central machine is limited to $b$ bits. We investigate both the $d$- and infinite-dimensional signal…

统计理论 · 数学 2022-12-13 Botond Szabó , Lasse Vuursteen , Harry van Zanten

Efficient computational methods that are capable of supporting experimental measures obtained at constant values of pH and redox potential are important tools as they serve to, among other things, provide additional atomic level information…

化学物理 · 物理学 2018-09-21 Vinícius Wilian D. Cruzeiro , Adrian E. Roitberg

Distributed radar sensors enable robust human activity recognition. However, scaling the number of coordinated nodes introduces challenges in feature extraction from large datasets, and transparent data fusion. We propose an end-to-end…

信号处理 · 电气工程与系统科学 2026-01-07 Mina Shahbazifar , Zolfa Zeinalpour-Yazdi , Matthias Hollick , Arash Asadi , Vahid Jamali

Reduced density matrix functional theory for the case of solids is presented and a new exchange correlation functional based on a fractional power of the density matrix is introduced. We show that compared to other functionals, this…

材料科学 · 物理学 2009-11-13 S. Sharma , J. K. Dewhurst , N. N. Lathiotakis , E. K. U. Gross

We develop a novel method for carrying out model selection for Bayesian autoencoders (BAEs) by means of prior hyper-parameter optimization. Inspired by the common practice of type-II maximum likelihood optimization and its equivalence to…

Simulated tempering is a widely used strategy for sampling from multimodal distributions. In this paper, we consider simulated tempering combined with an arbitrary local Markov chain Monte Carlo sampler and present a new decomposition…

统计理论 · 数学 2025-10-06 Jhanvi Garg , Krishna Balasubramanian , Quan Zhou