中文
相关论文

相关论文: Valley notch filter in a graphene strain superlatt…

200 篇论文

This work proposes an unsupervised fusion framework based on deep convolutional transform learning. The great learning ability of convolutional filters for data analysis is well acknowledged. The success of convolutive features owes to…

机器学习 · 计算机科学 2020-11-10 Pooja Gupta , Jyoti Maggu , Angshul Majumdar , Emilie Chouzenoux , Giovanni Chierchia

Analogous to charge and spin, electrons in solids endows an additional degree of freedom: the valley pseudospin. Two-dimensional hexagonal materials such as graphene exhibit two valleys, labelled as $\mathbf{K}$ and $\mathbf{K}^{\prime}$.…

介观与纳米尺度物理 · 物理学 2022-01-12 M. S. Mrudul , Gopal Dixit

Machine learning techniques, notably various deep neural network methods, are instrumental in processing extensive and intricate data sets in engineering and scientific fields. This paper shows how deep neural networks can inversely design…

光学 · 物理学 2026-05-05 Ali Mohajer Hejazi , Vincent Ginis

Based on Green's function formalism, the existence of multiple mobility edges in a one-dimensional magnetic-non-magnetic superlattice geometry in presence of external electric field is predicted, and, it leads to the possibility of getting…

介观与纳米尺度物理 · 物理学 2013-08-06 Moumita Dey , Santanu K. Maiti , S. N. Karmakar

When arranged in a periodic geometry, arrays of metallic nanostructures are capable of supporting collective modes known as lattice resonances. These modes, which originate from the coherent multiple scattering between the elements of the…

Visual saliency models have recently begun to incorporate deep learning to achieve predictive capacity much greater than previous unsupervised methods. However, most existing models predict saliency using local mechanisms limited to the…

计算机视觉与模式识别 · 计算机科学 2018-07-04 Samuel Dodge , Lina Karam

Deep convolutional networks have recently shown excellent performance on Fine-Grained Vehicle Classification. Based on these existing works, we consider that the back-probation algorithm does not focus on extracting less discriminative…

计算机视觉与模式识别 · 计算机科学 2020-01-28 Zhanyu Ma , Dongliang Chang , Xiaoxu Li

It is commonly agreed that the use of relevant invariances as a good statistical bias is important in machine-learning. However, most approaches that explicitly incorporate invariances into a model architecture only make use of very simple…

机器学习 · 计算机科学 2017-11-01 Yannic Kilcher , Gary Becigneul , Thomas Hofmann

This paper proposes a new learning paradigm called filter grafting, which aims to improve the representation capability of Deep Neural Networks (DNNs). The motivation is that DNNs have unimportant (invalid) filters (e.g., l1 norm close to…

计算机视觉与模式识别 · 计算机科学 2020-02-27 Fanxu Meng , Hao Cheng , Ke Li , Zhixin Xu , Rongrong Ji , Xing Sun , Gaungming Lu

The valley degeneracy of electron states in graphene stimulates intensive research of valley-related optical and transport phenomena. While many proposals on how to manipulate valley states have been put forward, experimental access to the…

介观与纳米尺度物理 · 物理学 2014-11-17 L. E. Golub , S. A. Tarasenko

Despite their increasing popularity and success in a variety of supervised learning problems, deep neural networks are extremely hard to interpret and debug: Given and already trained Deep Neural Net, and a set of test inputs, how can we…

机器学习 · 计算机科学 2018-06-07 Uday Singh Saini , Evangelos E. Papalexakis

Graph Neural Networks (GNNs) often struggle in preserving high-frequency components of nodal signals when dealing with directed graphs. Such components are crucial for modeling flow dynamics, without which a traditional GNN tends to treat a…

机器学习 · 计算机科学 2025-06-09 Haoyang Jiang , Jindong Wang , Xingquan Zhu , Yi He

We investigate the optical conductivity, along with longitudinal and transverse conductivities, in buckled hexagonal lattice such as silicene subjected to both an in-plane magnetic field and a perpendicular electric field. In this model, we…

介观与纳米尺度物理 · 物理学 2023-12-27 Phusit Nualpijit , Bumned Soodchomshom

The present paradigm in design and modelling of lattice architected mechanical metamaterials is mostly limited to traditional numerical methods like finite element analysis. Recently, the use of machine learning and artificial intelligence…

We introduce "AnnealSGD", a regularized stochastic gradient descent algorithm motivated by an analysis of the energy landscape of a particular class of deep networks with sparse random weights. The loss function of such networks can be…

机器学习 · 计算机科学 2017-04-25 Pratik Chaudhari , Stefano Soatto

We recast the forward pass of a multilayered convolutional neural network (CNN) as the solution to the problem of sparse least squares migration (LSM). The CNN filters and feature maps are shown to be analogous, but not equivalent, to the…

地球物理 · 物理学 2020-05-26 Zhaolun Liu , Yuqing Chen , Gerard Schuster

Straintronic devices made of carbon-based materials have been pushed up due to the graphene high mechanical flexibility and the possibility of interesting changes in transport properties. Properly designed strained systems have been…

介观与纳米尺度物理 · 物理学 2018-05-02 V. Torres , D. Faria , A. Latgé

This work introduces a wavelet neural network to learn a filter-bank specialized to fit non-stationary signals and improve interpretability and performance for digital signal processing. The network uses a wavelet transform as the first…

机器学习 · 计算机科学 2022-05-09 Jason Stock , Chuck Anderson

Gravitational wave science is a pioneering field with rapidly evolving data analysis methodology currently assimilating and inventing deep learning techniques. The bulk of the sophisticated flagship searches of the field rely on the…

天体物理仪器与方法 · 物理学 2022-02-23 Jingkai Yan , Mariam Avagyan , Robert E. Colgan , Doğa Veske , Imre Bartos , John Wright , Zsuzsa Márka , Szabolcs Márka

Graphene on hBN (G/hBN) has a long period moir\'{e} superstructure owing to the lattice mismatch between two materials. Long periodic potential caused by the moir\'{e} superstructure induces modulation of electronic properties of the…

介观与纳米尺度物理 · 物理学 2022-08-11 Keisuke Nakagahara , Katsunori Wakabayashi