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Training energy-based models (EBMs) with noise-contrastive estimation (NCE) is theoretically feasible but practically challenging. Effective learning requires the noise distribution to be approximately similar to the target distribution,…

机器学习 · 计算机科学 2022-11-07 Nathaniel Xu

We revisit the Bayesian online inference problems for the linear dynamic systems (LDS) under non- Gaussian environment. The noises can naturally be non-Gaussian (skewed and/or heavy tailed) or to accommodate spurious observations, noises…

统计计算 · 统计学 2015-04-23 Saikat Saha

Achieving practical quantum advantage on near-term noisy hardware is a central goal of quantum computation. However, without efficient pre-execution diagnostics, circuit design and scheme selection often rely on costly hardware-in-the-loop…

量子物理 · 物理学 2026-02-17 Yuguo Shao , Zhenyu Chen , Zhaohui Wei , Zhengwei Liu

In this paper, we propose a novel estimator for pilot-aided orthogonal frequency division multiplexing (OFDM) channels in an additive Gaussian and impulsive perturbation environment. Due to sensor failure which might happen because of…

信息论 · 计算机科学 2019-08-22 Iman Valiulahi , Farzad Parvaresh , Ali Asghar Beheshti

Accurate estimation of the dynamic states of a synchronous machine (e.g., rotor s angle and speed) is essential in monitoring and controlling transient stability of a power system. It is well known that the covariance matrixes of process…

系统与控制 · 计算机科学 2017-02-06 Shahrokh Akhlaghi , Ning Zhou , Zhenyu Huang

We present a hybrid quantum algorithm for estimating gaps in many-body energy spectra, supported by an analytic proof of its inherent resilience to state preparation and measurement errors, as well as mid-circuit multi-qubit depolarizing…

量子物理 · 物理学 2025-02-14 Woo-Ram Lee , Nathan M. Myers , V. W. Scarola

There has been an increasing research focus on quantum algorithms for condensed matter systems recently, particularly on calculating energy band structures. Here, we propose a quantum algorithm, the powered full quantum eigensolver(P-FQE),…

材料科学 · 物理学 2023-08-08 Bozhi Wang , Jingwei Wen , Jiawei Wu , Haonan Xie , Fan Yang , Shijie Wei , Gui-lu Long

This paper studies the statistical complexity of kernel hyperparameter tuning in the setting of active regression under adversarial noise. We consider the problem of finding the best interpolant from a class of kernels with unknown…

机器学习 · 计算机科学 2020-06-16 Raphael A. Meyer , Christopher Musco

This paper presents a robust filter called quaternion Hardy filter (QHF) for color image edge detection. The QHF can be capable of color edge feature enhancement and noise resistance. It is flexible to use QHF by selecting suitable…

计算机视觉与模式识别 · 计算机科学 2021-01-05 Wenshan Bi Dong Cheng Wankai Liu , Kit Ian Kou

Gravitational-wave analyses depend heavily on waveforms that model the evolution of compact binary coalescences as seen by observing detectors. In many cases these waveforms are given by waveform approximants, models that approximate the…

广义相对论与量子宇宙学 · 物理学 2024-10-11 Quirijn Meijer , Sarah Caudill

Policy robustness in Reinforcement Learning may not be desirable at any cost: the alterations caused by robustness requirements from otherwise optimal policies should be explainable, quantifiable and formally verifiable. In this work we…

机器学习 · 计算机科学 2023-12-12 Daniel Jarne Ornia , Licio Romao , Lewis Hammond , Manuel Mazo , Alessandro Abate

Mitigating noise-induced decoherence is the central challenge in controlling open quantum systems. While existing robust protocols often require precise noise models, we introduce a universal framework for noise-agnostic quantum control…

量子物理 · 物理学 2026-03-18 Lixiang Ding , Jingtao Fan , Xingze Qiu

The escalating challenges of managing vast sensor-generated data, particularly in audio applications, necessitate innovative solutions. Current systems face significant computational and storage demands, especially in real-time applications…

The Variational Quantum Eigensolver (VQE) is a hybrid quantum-classical algorithm for preparing ground states in the current era of noisy devices. The classical component of the algorithm requires a large number of measurements on…

量子物理 · 物理学 2025-03-27 Akib Karim , Shaobo Zhang , Muhammad Usman

I consider the role of detection noise in quantum-enhanced metrology in collective spin systems, and derive a fundamental bound for the maximum obtainable sensitivity for a given level of added detection noise. I then present an…

量子物理 · 物理学 2018-10-31 Simon A. Haine

Adaptation to external and internal changes is major for robotic systems in uncertain environments. Here we present a novel multisensory active inference torque controller for industrial arms that shows how prediction can be used to resolve…

机器人学 · 计算机科学 2021-12-14 Cristian Meo , Giovanni Franzese , Corrado Pezzato , Max Spahn , Pablo Lanillos

Partial differential equations (PDEs) with near singular solutions pose significant challenges for traditional numerical methods, particularly in complex geometries where mesh generation and adaptive refinement become computationally…

数值分析 · 数学 2025-07-24 Yangtao Deng , Qiaolin He , Xiaoping Wang

Attitude estimation is crucial in aerospace engineering, robotics, and virtual reality applications, but faces difficulties due to nonlinear system dynamics and sensor limitations. This paper addresses the challenge of attitude estimation…

信号处理 · 电气工程与系统科学 2024-10-22 Yash Pandey , Rahul Bhattacharyya , Yatindra Nath Singh

Functional data analysis almost always involves smoothing discrete observations into curves, because they are never observed in continuous time and rarely without error. Although smoothing parameters affect the subsequent inference,…

统计方法学 · 统计学 2025-04-07 Sunny G. W. Wang , Valentin Patilea , Nicolas Klutchnikoff

This paper presents a new methodology, called AFSSEN, to simultaneously select significant predictors and produce smooth estimates in a high-dimensional function-on-scalar linear model with a sub-Gaussian errors. Outcomes are assumed to lie…

统计方法学 · 统计学 2019-05-27 Ardalan Mirshani , Matthew Reimherr
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