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Hyperinvariant tensor networks (hyMERA) were introduced as a way to combine the successes of perfect tensor networks (HaPPY) and the multiscale entanglement renormalization ansatz (MERA) in simulations of the AdS/CFT correspondence.…

量子物理 · 物理学 2023-11-14 Matthew Steinberg , Javier Prior

Domain generalized semantic segmentation is an essential computer vision task, for which models only leverage source data to learn the capability of generalized semantic segmentation towards the unseen target domains. Previous works…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Guanlong Jiao , Chenyangguang Zhang , Haonan Yin , Yu Mo , Biqing Huang , Hui Pan , Yi Luo , Jingxian Liu

Remote sensing image classification exploiting multiple sensors is a very challenging problem: data from different modalities are affected by spectral distortions and mis-alignments of all kinds, and this hampers re-using models built for…

信号处理 · 电气工程与系统科学 2020-12-09 Devis Tuia , Diego Marcos , Gustau Camps-Valls

Recent studies suggest that context-aware low-rank approximation is a useful tool for compression and fine-tuning of modern large-scale neural networks. In this type of approximation, a norm is weighted by a matrix of input activations,…

机器学习 · 计算机科学 2026-03-26 Uliana Parkina , Maxim Rakhuba

In 1+1-dimensional conformal field theory, the thermal state on a circle is related to a certain quotient of the vacuum on a line. We explain how to take this quotient in the MERA tensor network representation of the vacuum and confirm the…

The growing role of data-driven approaches to scientific discovery has unveiled a large class of models that involve latent transformations with a rigid algebraic constraint. Three-dimensional molecule reconstruction in Cryo-Electron…

信息论 · 计算机科学 2019-06-04 Amelia Perry , Jonathan Weed , Afonso S. Bandeira , Philippe Rigollet , Amit Singer

The estimation of normalizing constants is a fundamental step in probabilistic model comparison. Sequential Monte Carlo methods may be used for this task and have the advantage of being inherently parallelizable. However, the standard…

机器学习 · 统计学 2016-08-16 Marco Fraccaro , Ulrich Paquet , Ole Winther

We apply a recently advocated simulation scheme that employs a local order-parameter pinning field to study quantum critical phenomena in the two-dimensional square-lattice bilayer quantum Heisenberg model. Using a world-line quantum Monte…

统计力学 · 物理学 2017-01-12 Francesco Parisen Toldin , Fakher F. Assaad , Stefan Wessel

This paper addresses the problem of inverse covariance (also known as precision matrix) estimation in high-dimensional settings. Specifically, we focus on two classes of estimators: linear shrinkage estimators with a target proportional to…

机器学习 · 统计学 2025-11-21 Lucas Morisset , Adrien Hardy , Alain Durmus

Multireference alignment (MRA) refers to the problem of recovering a signal from noisy samples subject to random circular shifts. Expectation--maximization (EM) and variational approaches use statistical modeling to achieve high accuracy at…

信息论 · 计算机科学 2025-10-30 Vahid Shahverdi , Emanuel Ström , Joakim Andén

We develop a novel real-space renormalization group (RG) scheme which accurately estimates correlation length exponent $\nu$ near criticality of higher-dimensional quantum Ising and Potts models in a transverse field. Our method is…

统计力学 · 物理学 2014-02-05 Aleksander Kubica , Beni Yoshida

We use extensive Monte Carlo transfer matrix calculations on infinite strips of widths $L$ up to 30 lattice spacing and a finite-size scaling analysis to obtain critical exponents and conformal anomaly number $c$ for the two-dimensional…

凝聚态物理 · 物理学 2009-10-28 M. P. Nightingale , E. Granato , J. M. Kosterlitz

We consider disordered ladders of the transverse-field Ising model and study their critical properties and entanglement entropy for varying width, $w \le 20$, by numerical application of the strong disorder renormalization group method. We…

无序系统与神经网络 · 物理学 2015-05-14 Istvan A. Kovacs , Ferenc Igloi

Autoencoder and its variants have been widely applicated in anomaly detection.The previous work memory-augmented deep autoencoder proposed memorizing normality to detect anomaly, however it neglects the feature discrepancy between different…

计算机视觉与模式识别 · 计算机科学 2020-12-22 Yifei Yang , Shibing Xiang , Ruixiang Zhang

We revisit the classical, full-fledged Bayesian model averaging (BMA) paradigm to ensemble pre-trained and/or lightly-finetuned foundation models to enhance the classification performance on image and text data. To make BMA tractable under…

机器学习 · 计算机科学 2025-05-29 Mijung Park

We investigate the evolution of entanglement spectra under a global quantum quench from a short-range correlated state to the quantum critical point. Motivated by the conformal mapping, we find that the dynamical entanglement spectra…

统计力学 · 物理学 2019-11-11 Qicheng Tang , W. Zhu

The COntractor REnormalization group (CORE) method, a new approach to solving Hamiltonian lattice systems, is presented. The method defines a systematic and nonperturbative means of implementing Kadanoff-Wilson real-space renormalization…

高能物理 - 格点 · 物理学 2016-08-24 Colin Morningstar , Marvin Weinstein

We propose a new implementation of real-space renormalization group (RG) transformations for quantum states on a lattice. Key to this approach is the removal of short-ranged entanglement, similar to Vidal's entanglement renormalization…

量子物理 · 物理学 2017-07-19 Glen Evenbly

The two- and three-dimensional transverse-field Ising models with ferromagnetic exchange interactions are analyzed by means of the real-space renormalization group method. The basic strategy is a generalization of a method developed for the…

统计力学 · 物理学 2011-05-04 Ryoji Miyazaki , Hidetoshi Nishimori , Gerardo Ortiz

Density Matrix Renormalization Group (DMRG) and its extensions in the form of Matrix Product States (MPS) are arguably the choice for the study of one dimensional quantum systems in the last three decades. However, due to the limited…

强关联电子 · 物理学 2023-04-13 Xiangjian Qian , Mingpu Qin