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The use of neural network parametrizations to represent the ground state in variational Monte Carlo (VMC) calculations has generated intense interest in recent years. However, as we demonstrate in the context of the periodic Heisenberg spin…

化学物理 · 物理学 2023-06-23 Huan Zhang , Robert J. Webber , Michael Lindsey , Timothy C. Berkelbach , Jonathan Weare

We present a bottom-up approach to the question of supersymmetry breaking in the MSSM. Starting with the experimentally measurable low energy supersymmetry breaking parameters which can take any values consistent with present experimental…

高能物理 - 唯象学 · 物理学 2007-05-23 M. Olechowski

Accurate Monte Carlo (MC) modelling in high-energy physics is challenging, particularly in complex scenarios where simulations fail to reproduce observed data. In practice, experimental information is often limited to one-dimensional (1D)…

机器学习 · 计算机科学 2026-05-11 Matthias Schott , Lucie Flek

In regimes of low signal strengths and therefore a small signal-to-noise ratio, standard data analysis methods often fail to accurately estimate system properties. We present a method based on Monte Carlo simulations to effectively restore…

Natural image matting is a fundamental and challenging computer vision task. It has many applications in image editing and composition. Recently, deep learning-based approaches have achieved great improvements in image matting. However,…

计算机视觉与模式识别 · 计算机科学 2022-04-21 Guowei Chen , Yi Liu , Jian Wang , Juncai Peng , Yuying Hao , Lutao Chu , Shiyu Tang , Zewu Wu , Zeyu Chen , Zhiliang Yu , Yuning Du , Qingqing Dang , Xiaoguang Hu , Dianhai Yu

In the case of spatially-revolved helioseismic data (such as MDI, GONG, HMI), the usual mode-fitting analysis consists of fitting the 2l+1 individual m-spectra of a given multiplet (n, l) either individually or simultaneously. Such fitting…

天体物理学 · 物理学 2008-10-13 D. Salabert , R. A. Garcia

Latent variable models have been successfully applied in lossless compression with the bits-back coding algorithm. However, bits-back suffers from an increase in the bitrate equal to the KL divergence between the approximate posterior and…

Matrix low rank approximation including the classical PCA and the robust PCA (RPCA) method have been applied to solve the background modeling problem in video analysis. Recently, it has been demonstrated that a special weighted low rank…

最优化与控制 · 数学 2017-03-21 Aritra Dutta , Xin Li

Image steganography is the art of hiding secret message in grayscale or color images. Easy detection of secret message for any state-of-art image steganography can break the stego system. To prevent the breakdown of the stego system data is…

多媒体 · 计算机科学 2022-01-05 Soumendu Chakraborty , Anand Singh Jalal , Charul Bhatnagar

Semi-supervised learning by self-training heavily relies on pseudo-label selection (PLS). The selection often depends on the initial model fit on labeled data. Early overfitting might thus be propagated to the final model by selecting…

机器学习 · 统计学 2023-06-27 Julian Rodemann , Jann Goschenhofer , Emilio Dorigatti , Thomas Nagler , Thomas Augustin

A generic modular array architecture is proposed, featuring uniform/non-uniform subarray layouts that allows for flexible deployment. The bistatic near-field sensing system is considered, where the target is located in the near-field of the…

信号处理 · 电气工程与系统科学 2024-05-31 Chunwei Meng , Dingyou Ma , Xu Chen , Zhiyong Feng , Yuanwei Liu

In recent years, foundation models for monocular depth estimation have received increasing attention. Current methods mainly address typical daylight conditions, but their effectiveness notably decreases in low-light environments. There is…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Longjian Zeng , Zunjie Zhu , Rongfeng Lu , Ming Lu , Bolun Zheng , Chenggang Yan , Anke Xue

We study the upgrading version of the maximal covering location problem with edge length modifications on networks. This problem aims at locating p facilities on the vertices (of the network) so as to maximise coverage, considering that the…

Astrophysical foreground substraction is crucial to retrieve the cosmic microwave background (CMB) polarization out of the observed data. Recent efforts have been carried out towards the development of a minimally informed component…

宇宙学与河外天体物理 · 物理学 2025-07-08 Clément Leloup , Magdy Morshed , Arianna Rizzieri

Parameter-efficient fine-tuning (PEFT) techniques have emerged to address overfitting and high computational costs associated with fully fine-tuning in self-supervised learning. Mainstream PEFT methods add a few trainable parameters while…

计算机视觉与模式识别 · 计算机科学 2025-06-06 Xingliang Lei , Yiwen Ye , Zhisong Wang , Ziyang Chen , Minglei Shu , Weidong Cai , Yanning Zhang , Yong Xia

Point cloud upsampling is vital for the quality of the mesh in three-dimensional reconstruction. Recent research on point cloud upsampling has achieved great success due to the development of deep learning. However, the existing methods…

图形学 · 计算机科学 2021-02-09 Shuquan Ye , Dongdong Chen , Songfang Han , Ziyu Wan , Jing Liao

For the purposes of foreground estimation, the true background model is unavailable in many practical circumstances and needs to be estimated from cluttered image sequences. We propose a sequential technique for static background estimation…

计算机视觉与模式识别 · 计算机科学 2013-03-12 Vikas Reddy , Conrad Sanderson , Brian C. Lovell

When inverting solar spectra, image degradation effects that are present in the data are usually approximated or not considered. We develop a data reduction method that takes these issues into account and minimizes the resulting errors. By…

天体物理仪器与方法 · 物理学 2015-06-11 M. van Noort

We study the effectiveness of subagging, or subsample aggregating, on regression trees, a popular non-parametric method in machine learning. First, we give sufficient conditions for pointwise consistency of trees. We formalize that (i) the…

机器学习 · 统计学 2024-04-03 Christos Revelas , Otilia Boldea , Bas J. M. Werker

The observed solar p-mode frequencies provide a powerful diagnostic of the internal structure of the Sun and permit us to test in considerable detail the physics used in the theory of stellar structure. Amongst the most commonly used…

天体物理学 · 物理学 2009-10-31 M. C. Rabello-Soares , Sarbani Basu , J. Christensen-Dalsgaard
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