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Multi-contrast Magnetic Resonance Imaging super-resolution (MC-MRI SR) aims to enhance low-resolution (LR) contrasts leveraging high-resolution (HR) references, shortening acquisition time and improving imaging efficiency while preserving…

计算机视觉与模式识别 · 计算机科学 2025-09-24 Xiaoman Wu , Lubin Gan , Siying Wu , Jing Zhang , Yunwei Ou , Xiaoyan Sun

In this paper, we consider the problem of automatic modulation classification with multiple sensors in the presence of unknown time offset, phase offset and received signal amplitude. We develop a novel hybrid maximum likelihood (HML)…

其他计算机科学 · 计算机科学 2015-02-05 O. Ozdemir , T. Wimalajeewa , B. Dulek , P. K. Varshney , W. Su

Applying a sparse constraint on the beam pattern has been suggested to suppress the sidelobe of the minimum variance distortionless response (MVDR) beamformer recently. To further improve the performance, we add a mixed norm constraint on…

信息论 · 计算机科学 2015-03-17 Yipeng Liu , Qun Wan

Foundational vision models, such as the Segment Anything Model (SAM), have achieved significant breakthroughs through extensive pre-training on large-scale visual datasets. Despite their general success, these models may fall short in…

计算机视觉与模式识别 · 计算机科学 2024-08-13 Ke Zhou , Zhongwei Qiu , Dongmei Fu

Combined with space-time coding, the orthogonal frequency division multiplexing (OFDM) system explores space diversity. It is a potential scheme to offer spectral efficiency and robust high data rate transmissions over frequency-selective…

计算与语言 · 计算机科学 2010-02-18 Raungrong Suleesathira

In this paper, we propose low-complexity robust adaptive beamforming (RAB) techniques that based on shrinkage methods. The only prior knowledge required by the proposed algorithms are the angular sector in which the actual steering vector…

信息论 · 计算机科学 2015-05-27 H. Ruan , R. C. de Lamare

Stochastic Gradient Descent (SGD) and its momentum variants form the backbone of deep learning optimization, yet the underlying dynamics of their gradient behavior remain insufficiently understood. In this work, we reinterpret gradient…

机器学习 · 计算机科学 2026-03-09 Zhipeng Yao , Rui Yu , Guisong Chang , Ying Li , Yu Zhang , Dazhou Li

Over decades, Markov chain Monte Carlo (MCMC) methods have been widely studied, with a typical application being the quantification of posterior uncertainties in Bayesian system identification of structural dynamic models. To address the…

应用统计 · 统计学 2026-04-28 Xianghao Meng , Yong Huang , James L. Beck , Kui Jiang , Hui Li

In this paper, we consider a novel optimization design for multi-waveguide pinching-antenna systems, aiming to maximize the weighted sum rate (WSR) by jointly optimizing beamforming coefficients and antenna position. To handle the…

信息检索 · 计算机科学 2025-06-17 Kang Zhou , Weixi Zhou , Donghong Cai , Xianfu Lei , Yanqing Xu , Zhiguo Ding , Pingzhi Fan

Standard Self-Supervised Learning (SSL) for Automatic Modulation Recognition (AMR) struggles with ineffective isotropic augmentations, spectral instability, and semantic drift. To address these challenges, we propose Dynamic-Consistency…

机器学习 · 计算机科学 2026-05-27 Guanqun Zhao , Yitong Liu , Jiaxuan Fang , Yufei Mao , Hongwen Yang

Baseline estimation is critical to Demand Response (DR) settlement in electricity markets, yet existing machine learning methods remain limited in predictive performance, while methodologies from causal inference and counterfactual…

人工智能 · 计算机科学 2026-04-21 Jonas Sievers , Mardavij Roozbehani

Memristor based neural networks have great potentials in on-chip neuromorphic computing systems due to the fast computation and low-energy consumption. However, the imprecise properties of existing memristor devices generally result in…

新兴技术 · 计算机科学 2019-06-07 Yaoyuan Wang , Shuang Wu , Ziyang Zhang , Lei Tian , Luping Shi

Motivated by the increasing need to monitor safety-critical systems subject to uncertainties, a novel set-membership approach is proposed to estimate the state of a dynamical system with unknown-but-bounded exogenous inputs. The proposed…

系统与控制 · 电气工程与系统科学 2023-01-02 Marvin Jesse , Dawei Sun , Inseok Hwang

The success of large language models has inspired the computer vision community to explore image segmentation foundation model that is able to zero/few-shot generalize through prompt engineering. Segment-Anything(SAM), among others, is the…

计算机视觉与模式识别 · 计算机科学 2024-04-11 Haojie Zhang , Yongyi Su , Xun Xu , Kui Jia

Many machine learning models, including those with non-smooth regularizers, can be formulated as consensus optimization problems, which can be solved by the alternating direction method of multipliers (ADMM). Many recent efforts have been…

机器学习 · 计算机科学 2018-02-27 Rui Zhu , Di Niu , Zongpeng Li

Beamforming (BF) is essential for enhancing system capacity in fifth generation (5G) and beyond wireless networks, yet exhaustive beam training in ultra-massive multiple-input multiple-output (MIMO) systems incurs substantial overhead. To…

信号处理 · 电气工程与系统科学 2026-02-11 Yanliang Jin , Yunfan Li , Jiang Jun , Yuan Gao , Shengli Liu , Jianbo Du , Zhaohui Yang , Shugong Xu

In optimizing real-world structures, due to fabrication or budgetary restraints, the design variables may be restricted to a set of standard engineering choices. Such variables, commonly called categorical variables, are discrete and…

计算工程、金融与科学 · 计算机科学 2025-01-03 Mehran Ebrahimi , Hyunmin Cheong , Pradeep Kumar Jayaraman , Farhad Javid

Dual-functional radar-communication (DFRC) is a promising technology where radar and communication functions operate on the same spectrum and hardware. In this paper, we propose an algorithm for designing constant modulus waveforms for DFRC…

信号处理 · 电气工程与系统科学 2024-04-09 Byunghyun Lee , Anindya Bijoy Das , David J. Love , Christopher G. Brinton , James V. Krogmeier

In this paper, a binaural beamforming algorithm for hearing aid applications is introduced.The beamforming algorithm is designed to be robust to some error in the estimate of the target speaker direction. The algorithm has two main…

音频与语音处理 · 电气工程与系统科学 2019-11-21 Hala As'ad , Martin Bouchard , Homayoun Kamkar-Parsi

This paper investigates the design and analysis of a novel grid-forming (GFM) control method for grid-connected converters (GCCs). The core novelty lies in a virtual flux observer-based synchronization and load angle control method. The…

系统与控制 · 电气工程与系统科学 2026-01-26 Xueqing Gao , Jun Zhang , Tao Li , Mingming Zhang