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We develop an elementary mean field approach for fully asymmetric kinetic Ising models, which can be applied to a single instance of the problem. In the case of the asymmetric SK model this method gives the exact values of the local…

无序系统与神经网络 · 物理学 2015-05-27 M. Mezard , J. Sakellariou

The quantum theory of coherent Ising machines, based on degenerate optical parametric oscillators and measurement-feedback circuits, is developed using the positive $P({\alpha},{\beta})$ representation of the density operator and the master…

量子物理 · 物理学 2017-11-22 Taime Shoji , Kazuyuki Aihara , Yoshihisa Yamamoto

We present an exact ansatz for the eigenstate problem of mixed fermion-boson systems that can be implemented on quantum devices. Based on a generalization of the electronic contracted Schr\"odinger equation (CSE), our approach guides a…

量子物理 · 物理学 2024-08-26 Samuel Warren , Yuchen Wang , Carlos L. Benavides-Riveros , David A. Mazziotti

In this paper, we report new results on a novel Ising machine technology for solving combinatorial optimization problems using networks of coupled self-sustaining oscillators. Specifically, we present several working hardware prototypes…

新兴技术 · 计算机科学 2019-04-24 Tianshi Wang , Leon Wu , Jaijeet Roychowdhury

This paper proposes a cooperative angle-of-arrival(AoA) estimation, taking advantage of co-processing channel state information (CSI) from a group of access points that receive signals of the same source. Since received signals are sparse,…

信号处理 · 电气工程与系统科学 2021-04-28 Shiva Akbari , Shahrokh Valaee

A hybrid transmit precoder (TPC) and receive combiner (RC) pair is conceived for millimeter wave (mmWave) multiple input multiple output (MIMO) integrated sensing and communication (ISAC) systems. The proposed design considers a practical…

信号处理 · 电气工程与系统科学 2025-06-06 Jitendra Singh , Anand Mehrotra , Suraj Srivastava , Aditya K. Jagannatham , Lajos Hanzo

One of the key points in designing an integrated sensing and communication (ISAC) system using computational imaging is the division size of imaging pixels. If the size is too small, it leads to a high number of pixels that need processing.…

信号处理 · 电气工程与系统科学 2025-05-13 Xin Tong , Zhaoyang Zhang , Zhaohui Yang , Yu Ge , Henk Wymeersch

We propose a novel type of minor-embedding (ME) in simulated-annealing-based Ising machines. The Ising machines can solve combinatorial optimization problems. Many combinatorial optimization problems are mapped to find the ground…

统计力学 · 物理学 2020-12-07 Tatsuhiko Shirai , Shu Tanaka , Nozomu Togawa

Mean-field theory (MFT) is one of the main available tools for analytical calculations entailed in investigations regarding many-body systems. Recently, there have been an urge of interest in ameliorating this kind of method, mainly with…

统计力学 · 物理学 2016-06-14 F. M. Zimmer , M. Schmidt , Jonas Maziero

Coherent Ising machine (CIM) implemented by degenerate optical parametric oscillator (DOPO) networks can solve some combinatorial optimization problems. However, when the network structure has a certain type of symmetry, optimal solutions…

适应与自组织系统 · 物理学 2020-07-20 Seiya Amoh , Daisuke Ito , Tetsushi Ueta

Integrated sensing and communication (ISAC) unifies sensing and communication, and improves the efficiency of the spectrum, energy, and hardware. In this work, we investigate the ISAC beamforming design to maximize the mutual information…

信号处理 · 电气工程与系统科学 2023-01-12 Jin Li , Gui Zhou , Tantao Gong , Nan Liu

In this paper, we present a novel closed-form model (CFM) for accurate and fast evaluation of nonlinear interference in modern ultrawideband coherent optical fiber communication systems. Starting from the Gaussian noise model (GN model),…

信号处理 · 电气工程与系统科学 2020-06-08 Mahdi Ranjbar Zefreh , Pierluigi Poggiolini

Time-multiplexed networks of degenerate optical parametric oscillators have demonstrated remarkable success in simulating coupled Ising spins, thus providing a promising route to solving complex combinatorial optimization problems. In these…

In the evolution towards the forthcoming era of sixth-generation (6G) mobile communication systems characterized by ubiquitous intelligence, integrated sensing and communication (ISAC) is in a phase of burgeoning development. However, the…

信号处理 · 电气工程与系统科学 2025-01-17 Haotian Liu , Zhiqing Wei , Jinghui Piao , Huici Wu , Xingwang Li , Zhiyong Feng

Ising solvers offer a promising physics-based approach to tackle the challenging class of combinatorial optimization problems. However, typical solvers operate in a quadratic energy space, having only pair-wise coupling elements which…

Combinatorial optimization problems are ubiquitous in industrial applications. However, finding optimal or close-to-optimal solutions can often be extremely hard. Because some of these problems can be mapped to the ground-state search of…

量子物理 · 物理学 2025-09-04 Junpeng Hou , Amin Barzegar , Helmut G. Katzgraber

We address the inverse problem for the mean-field Ising model with two- and three-body interactions using a Bayesian framework. Parameter recovery in this setting is notoriously difficult, particularly near phase transitions, at…

统计方法学 · 统计学 2025-11-03 Godwin Osabutey , Robert Richardson , Garritt L. Page

We propose a neural network model, which, with appropriate assignment of the stability of its equilibrium points (EPs), achieves Hopfield-like associative memory. The oscillator Ising machine (OIM) is an ideal candidates for such a model,…

神经与进化计算 · 计算机科学 2025-07-22 Yi Cheng , Zongli Lin

Inspired by the developments in quantum computing, building domain-specific classical hardware to solve computationally hard problems has received increasing attention. Here, by introducing systematic sparsification techniques, we…

Feature embedding learning and feature interaction modeling are two crucial components of deep models for Click-Through Rate (CTR) prediction. Most existing deep CTR models suffer from the following three problems. First, feature…

信息检索 · 计算机科学 2021-12-14 Chenxu Zhu , Bo Chen , Weinan Zhang , Jincai Lai , Ruiming Tang , Xiuqiang He , Zhenguo Li , Yong Yu