中文
相关论文

相关论文: Bloch oscillations in graphene from an artificial …

200 篇论文

Artificial neural networks (ANNs) represent a fundamentally connectionnist and distributed approach to computing, and as such they differ from classical computers that utilize the von Neumann architecture. This has revived research interest…

新兴技术 · 计算机科学 2024-10-03 Anas Skalli , Mirko Goldmann , Nasibeh Haghighi , Stephan Reitzenstein , James A. Lott , Daniel Brunner

A Feed Forward Error Back Propagation Artificial Neural Network(ANN) algorithm is developed for electron/positron identification in a wide momentum region (10 - 300 GeV/c). The method was proposed for the Transition Radiation Detector of…

计算物理 · 物理学 2016-09-08 N. Kuropatkin , R. Zukanovich Funchal

We study the optical oscillations of supermodes in planar optical waveguide arrays with parabolically graded propagation constant in individual waveguide interacting through nearest neighbor couplings. In these arrays, we have identified a…

光学 · 物理学 2010-05-26 Ming Jie Zheng , Yun San Chan , Kin Wah Yu

Graph neural networks (GNNs) have emerged as a powerful tool for graph classification and representation learning. However, GNNs tend to suffer from over-smoothing problems and are vulnerable to graph perturbations. To address these…

机器学习 · 计算机科学 2021-11-01 Yuzhou Chen , Baris Coskunuzer , Yulia R. Gel

We study the dynamics of semiclassical electrons in (gapped) graphene in two complementary limits, i.e. in the Klein tunneling and valley Hall effect regimes, by scattering wave packets off armchair step potentials and by exposing wave…

介观与纳米尺度物理 · 物理学 2014-08-19 Christoph. M. Puetter , Satoru Konabe , Yasuhiro Tokura , Yasuhiro Hatsugai , Kenji Shiraishi

A data-driven approach called CaNN (Calibration Neural Network) is proposed to calibrate financial asset price models using an Artificial Neural Network (ANN). Determining optimal values of the model parameters is formulated as training…

计算金融 · 定量金融 2020-02-03 Shuaiqiang Liu , Anastasia Borovykh , Lech A. Grzelak , Cornelis W. Oosterlee

In this paper we show the possibility of creating and identifying the features of an artificial neural network (ANN) which consists of mathematical models of biological neurons. The FitzHugh--Nagumo (FHN) system is used as an example of…

神经与进化计算 · 计算机科学 2023-07-24 Tatyana Bogatenko , Konstantin Sergeev , Andrei Slepnev , Jürgen Kurths , Nadezhda Semenova

Empirical networked systems are often only partially observed: sampling frames, crawling policies, privacy constraints, and temporal gaps can leave actors and edges unobserved. This complicates robustness and sensitivity analysis because…

社会与信息网络 · 计算机科学 2026-05-12 Mehrdad Jalali , Binh Vu , Swati Chandna , Chen Ding

Fine-grained classification models are designed to focus on the relevant details necessary to distinguish highly similar classes, particularly when intra-class variance is high and inter-class variance is low. Most existing models rely on…

计算机视觉与模式识别 · 计算机科学 2025-09-26 Riccardo La Grassa , Ignazio Gallo , Nicola Landro

Deep 'Analog Artificial Neural Networks' (ANNs) perform complex classification problems with remarkably high accuracy. However, they rely on humongous amount of power to perform the calculations, veiling the accuracy benefits. The…

新兴技术 · 计算机科学 2018-04-17 Parami Wijesinghe , Aayush Ankit , Abhronil Sengupta , Kaushik Roy

We study the problem of semi-supervised learning with Graph Neural Networks (GNNs) in an active learning setup. We propose GraphPart, a novel partition-based active learning approach for GNNs. GraphPart first splits the graph into disjoint…

机器学习 · 计算机科学 2023-03-20 Jiaqi Ma , Ziqiao Ma , Joyce Chai , Qiaozhu Mei

The rapid advancement of models based on artificial intelligence demands innovative monitoring techniques which can operate in real time with low computational costs. In machine learning, especially if we consider artificial neural networks…

统计方法学 · 统计学 2023-11-10 Anna Malinovskaya , Pavlo Mozharovskyi , Philipp Otto

In this paper, we propose a novel inverse parameter estimation approach called Bayesian optimized physics-informed neural network (BOPINN). In this study, a PINN solves the partial differential equation (PDE), whereas Bayesian optimization…

信号处理 · 电气工程与系统科学 2023-12-22 Mahindra Rautela , S. Gopalakrishnan , J. Senthilnath

This paper studies asynchronous message passing (AMP), a new paradigm for applying neural network based learning to graphs. Existing graph neural networks use the synchronous distributed computing model and aggregate their neighbors in each…

机器学习 · 计算机科学 2022-05-25 Lukas Faber , Roger Wattenhofer

Magnetic moments near zigzag edges in graphene allow complex nanostructures with customised spin properties to be realised. However, computational costs restrict theoretical investigations to small or perfectly periodic structures. Here we…

介观与纳米尺度物理 · 物理学 2022-09-14 Meriç E. Kucukbas , Seán McCann , Stephen R. Power

A theoretical performance analysis of the graph neural network (GNN) is presented. For classification tasks, the neural network approach has the advantage in terms of flexibility that it can be employed in a data-driven manner, whereas…

机器学习 · 计算机科学 2020-01-29 Tatsuro Kawamoto , Masashi Tsubaki , Tomoyuki Obuchi

Dendrites are crucial structures for computation of an individual neuron. It has been shown that the dynamics of a biological neuron with dendrites can be approximated by artificial neural networks (ANN) with deep structure. However, it…

神经元与认知 · 定量生物学 2023-05-23 Jingyang Ma , Songting Li , Douglas Zhou

We apply and compare various Artificial Neural Network (ANN) and other algorithms for automatic morphological classification of galaxies. The ANNs are presented here mathematically, as non-linear extensions of conventional statistical…

天体物理学 · 物理学 2015-06-24 O. Lahav , A. Naim , L. Sodre , M. C. Storrie-Lombardi

Artificial neural network (ANN) is a supervised learning algorithm, where parameters are learned by several back-and-forth iterations of passing the inputs through the network, comparing the output with the expected labels, and correcting…

密码学与安全 · 计算机科学 2021-10-13 Mohammad Sadeq Dousti

Artificial neural networks (ANNs) are at the core of most Deep learning (DL) algorithms that successfully tackle complex problems like image recognition, autonomous driving, and natural language processing. However, unlike biological brains…

神经与进化计算 · 计算机科学 2024-09-16 Spyridon Chavlis , Panayiota Poirazi