检索结果-内蒙古大学图书馆

2024 Asia Communications and Photonics Conference, ACP 2024 and International Conference on Information Photonics and Optical Communications, IPOC 2024

作者： Wang, Ying Nielsen, Kasper H. Deacon, Edward Sund, Patrik I. Liu, Zhe Scholz, Sven Ludwig, Arne Midolo, Leonardo Sørensen, Anders S. Paesani, Stefano Lodahl, Peter Niels Bohr Institute University of Copenhagen Blegdamsvej 17 Copenhagen2100 Denmark Quantum Engineering and Technology Laboratories School of Physics Department of Electrical and Electronic Engineering University of Bristol Bristol United Kingdom Lehrstuhl für Angewandte Festkörperphysik Ruhr-Universität Bochum Universitätsstrasse 150 BochumD-44780 Germany NNF Quantum Computing Programme Niels Bohr Institute University of Copenhagen Blegdamsvej 17 Copenhagen2100 Denmark

ISBN: (纸本)9798350379266

Light-matter interaction at the quantum level provides a versatile interface driving photonic quantum technologies toward practical applications. We demonstrate multi-mode photonic circuits that enable precise programming of linear and nonlinear phase configurations at the single-photon level. The nonlinearity operation is realized using a solid-state quantum emitter, a self-assembled quantum dot, integrated into a nanophotonic device. The quantum dot interfaces with a temporal linear optical interferometer, creating a programmable nonlinear photonic platform that is necessary for implementing quantum protocols that require strong nonlinearities, such as the quantum simulation of anharmonic molecular dynamics. © 2024 IEEE.

关键词： Nanocrystals

来源：评论

学校读者我要写书评

暂无评论

Text2NKG: Fine-Grained N-ary Relation Extraction for N-ary relational Knowledge Graph Construction 38

Text2NKG: Fine-Grained N-ary Relation Extraction for N-ary r...

引用

38th Conference on Neural Information Processing Systems, NeurIPS 2024

作者： Luo, Haoran Haihong, E. Yang, Yuhao Yao, Tianyu Guo, Yikai Tang, Zichen Zhang, Wentai Peng, Shiyao Wan, Kaiyang Song, Meina Lin, Wei Zhu, Yifan Tuan, Luu Anh School of Computer Science Beijing University of Posts and Telecommunications China School of Automation Science and Electrical Engineering Beihang University China Beijing Institute of Computer Technology and Application China Inspur Group Co. Ltd. China College of Computing and Data Science Nanyang Technological University Singapore

Beyond traditional binary relational facts, n-ary relational knowledge graphs (NKGs) are comprised of n-ary relational facts containing more than two entities, which are closer to real-world facts with broader applications. However, the construction of NKGs remains at a coarse-grained level, which is always in a single schema, ignoring the order and variable arity of entities. To address these restrictions, we propose Text2NKG, a novel fine-grained n-ary relation extraction framework for n-ary relational knowledge graph construction. We introduce a span-tuple classification approach with hetero-ordered merging and output merging to accomplish fine-grained n-ary relation extraction in different arity. Furthermore, Text2NKG supports four typical NKG schemas: hyper-relational schema, event-based schema, role-based schema, and hypergraph-based schema, with high flexibility and practicality. The experimental results demonstrate that Text2NKG achieves state-of-the-art performance in F1 scores on the fine-grained n-ary relation extraction benchmark. Our code and datasets are publicly available. © 2024 Neural information processing systems foundation. All rights reserved.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Characterization, synthesis, and optimization of quantum circuits over multiple-control Z-rotation gates: A systematic study

arXiv

引用

arXiv 2023年

作者： Zhang, Shihao Wu, Junda Li, Lvzhou Institute of Quantum Computing and Computer Theory School of Computer Science and Engineering Sun Yat-sen University Guangzhou510006 China

We conduct a systematic study of quantum circuits composed of multiple-control Z-rotation (MCZR) gates as primitives, since they are widely-used components in quantum algorithms and also have attracted much experimental interest in recent years. Herein, we establish a circuit-polynomial correspondence to characterize the functionality of quantum circuits over the MCZR gate set with continuous parameters. An analytic method for exactly synthesizing such quantum circuit to implement any given diagonal unitary matrix with an optimal gate count is proposed, which also enables the circuit depth optimal for specific cases with pairs of complementary gates. Furthermore, we present a gate-exchange strategy together with a flexible iterative algorithm for effectively optimizing the depth of any MCZR circuit, which can also be applied to quantum circuits over any other commuting gate set. Besides the theoretical analysis, the practical performances of our circuit synthesis and optimization techniques are further evaluated by numerical experiments on two typical examples in quantum computing, including diagonal Hermitian operators and quantum Approximate Optimization Algorithm (QAOA) circuits with tens of qubits, which can demonstrate a reduction in circuit depth by 33.40% and 15.55% on average over relevant prior works, respectively. Therefore, our methods and results provide a pathway for implementing quantum circuits and algorithms on recently developed devices. © 2023, CC BY.

关键词： Iterative methods

来源：评论

学校读者我要写书评

暂无评论

Evaluation of Improved Performance of Interference-Free Multi-User Multiple Access (MUMIMO) Techniques 15

Evaluation of Improved Performance of Interference-Free Mult...

引用

15th International Conference on computing Communication and Networking Technologies, ICCCNT 2024

作者： Chaudhary, Anisha Prasad, Koushik V. Ambhore, Vishal B. Singh, K. Ranjith Das, Sidhant Priyadarshini, Kala G. Quantum University Research Center Quantum University India Karnataka Bangalore India E&TC Vishwakarma Institute of Information Technology Pune India Department of Computer Science Karpagam Academy of Higher Education Coimbatore641021 India Centre for Interdisciplinary Research for Business and Technology Chitkara University Institute of Engineering and Technology Chitkara University Punjab India Department of Electrical and Electronics Engineering Prince Shri Venkateshwara Padmavathy Engineering College Chennai127 India

ISBN: (纸本)9798350370249

Multi-person multiple get admission to strategies are usually used for Wi-Fi communications. MUMIMO is a verbal exchange technique that lets in multiple customers to share the same communiqué medium, making an allowance for stepped forward spectrum performance. Stepped forward interference and throughput in MUMIMO structures have been demonstrated in more than one research. This abstract makes a specialty of the evaluation of improved performance of interference-free multi-person a couple of access (MUMIMO) techniques. Specifically, this summary discusses how recent advances in MUMIMO generation have progressed the machine's performance in terms of channel capacity, sign detection, and spectral performance. Additionally, this abstract discusses the effect of interference cancellation strategies on the performance of MUMIMO systems. In end, it's miles proven that MUMIMO generation has made terrific strides in phrases of overall performance improvement, mainly in phrases of its channel capability, signal detection, and spectral performance. ©2024 IEEE.

关键词： Multiple access interference

来源：评论

学校读者我要写书评

暂无评论

Fast photon-mediated entanglement of continuously-cooled trapped ions for quantum networking

arXiv

引用

arXiv 2024年

作者： O’Reilly, Jameson Toh, George Goetting, Isabella Saha, Sagnik Shalaev, Mikhail Carter, Allison Risinger, Andrew Kalakuntla, Ashish Li, Tingguang Verma, Ashrit Monroe, Christopher Duke Quantum Center Departments of Electrical and Computer Engineering and Physics Duke University DurhamNC27708 United States Joint Quantum Institute Departments of Physics and Electrical and Computer Engineering University of Maryland College ParkMD20742 United States

We entangle two co-trapped atomic barium ion qubits by collecting single visible photons from each ion through in-vacuo 0.8 NA objectives, interfering them through an integrated fiber-beamsplitter and detecting them in coincidence. This projects the qubits into an entangled Bell state with an observed fidelity lower bound of F > 94%. We also introduce an ytterbium ion for sympathetic cooling to remove the need for recooling interruptions and achieve a continuous entanglement rate of 250 s−1 © 2024, CC BY.

关键词： Photons

来源：评论

学校读者我要写书评

暂无评论

The Computational Complexity of Multi-player Concave Games and Kakutani Fixed Points 23

The Computational Complexity of Multi-player Concave Games a...

引用

24th ACM Conference on Economics and Computation, EC 2023

作者： Papadimitriou, Christos Vlatakis-Gkaragkounis, Emmanouil-Vasileios Zampetakis, Manolis Columbia University New YorkNY United States Simons Institute for the Theory of Computing Uc Berkeley BerkeleyCA United States Electrical and Computer Engineering Uc Berkeley BerkeleyCA United States

ISBN: (纸本)9798400701047

Kakutani's Fixed Point theorem is a fundamental theorem in topology with numerous applications in game theory and economics. Formally, Kakutani's theorem states that for any set-valued function mapping F, also known as correspondence, from a compact, convex set to itself in a locally convex topological vector space, if the function is upper hemicontinuous, has a closed graph, and its output at any given point is a non-empty and convex set, then there exists a fixed point x, namely a point in the domain which is mapped to itself by the function x g F(x). Interestingly, computational formulations of Kakutani exist only in special cases and are too restrictive to be useful in reductions. © 2023 Owner/Author(s).

关键词： Directed graphs

来源：评论

学校读者我要写书评

暂无评论

An Intelligent Convolutional Neural Network based Potholes Detection using Yolo-V7 1

An Intelligent Convolutional Neural Network based Potholes D...

引用

1st IEEE International Conference on Automation, computing and Renewable Systems, ICACRS 2022

作者： Sathvik, Madarapu Saranya, G. Karpagaselvi, S. Networking and Communications School of Computing SRM Institute of Science & Technology Kattankulathur Chennai603203 India School of Electrical and Computer Engineering Ethiopian Institute of Technology Mekelle Ethiopia

ISBN: (纸本)9781665460842

Road travel is one of the most common modes of transportation in the world, where more than 60% of the population commutes by personal or shared automobiles. According to a poll, potholes are a major contributing factor in several incidents. Pothole detection techniques have been created to address these issues, including the use of sensors and many others, but they are actually expensive to produce and difficult to put into practice. As a result, solid strategy that utilizes CNN is developed. According to the evidence presented, potholes are the principal factor responsible for the degradation of roadways. It is essential to give some thought to the question of how to locate potholes in the most efficient and economical way. Convolutional neural networks, often known as CNNs, have the ability to filter through vast volumes of data and extract the aspects that are most relevant to their purpose. YOLOv7 was used to annotate and train a pothole image dataset for this research, and the findings were analyzed in terms of recall, accuracy. The model was validated by examining a wide range of photographs relating to potholes. Our model had given a F1 score of 0.51 and this increases proportionally (more the value of F1 score more efficient is the training model) with the number of epochs increased. © 2022 IEEE

关键词： Object detection

来源：评论

学校读者我要写书评

暂无评论

Deep CNN based brain tumor detection in intelligent systems

引用

International Journal of Intelligent Networks 2024年第1期5卷 30-37页

作者： Gupta, Brij B. Gaurav, Akshat Arya, Varsha International Center for AI and Cyber Security Research and Innovations & Department of Computer Science and Information Engineering Asia University Taiwan Taichung413 Taiwan Ronin Institute MontclairNJ United States Department of Electrical and Computer Engineering Lebanese American University Beirut1102 Lebanon Symbiosis International University Pune India School of Computing Skyline University College P.O. Box 1797 Sharjah United Arab Emirates Department of Business Administration Asia University Taiwan Taiwan Dehradun India

The early detection of brain tumor is crucial for effective treatment and improved patient prognosis in Industrial Information Systems. This research introduces a novel computational model employing a three-layer Convolutional Neural Network (CNN) for the identification of brain tumors in Industrial Information Systems. Leveraging advanced computational techniques, this proposed model can autonomously detect intricate patterns and features from medical imaging data, resulting in more accurate and expedited diagnoses. With an impressive 90 % precision rate, our model demonstrates the potential to serve as a valuable tool for medical professionals working in the field of neuroimaging. By presenting a dependable and precise computational model, this study contributes to the advancement of brain tumor identification within the domain of medical imaging. We anticipate that our methodology will aid healthcare providers in making more accurate diagnoses, thereby leading to enhanced patient outcomes. Potential avenues for future research encompass refining the model's fundamental architecture and exploring real-time therapeutic applications. © 2024 The Authors

关键词： Deep learning

来源：评论

学校读者我要写书评

暂无评论

Limited-Capacity Supervisors for Discrete-Event Systems

Limited-Capacity Supervisors for Discrete-Event Systems

引用

American Control Conference (ACC)

作者： Richard Hugh Moulton Karen Rudie Department of Electrical and Computer Engineering Queen's University Kingston ON Canada Department of Electrical and Computer Engineering School of Computing and Ingenuity Labs Research Institute Queen's University Kingston ON Canada

ISBN: (数字)9798350382655

ISBN: (纸本)9798350382662

Modern applications seek to develop agents that are capable of performing tasks in real-world environments whose complexity may overshadow the agent's ability to act. These environments require intelligent agents that are capable of achieving their goals with relatively limited capacity. Here we introduce the Limited-Capacity Supervisor Problem, where capacity captures the control and observation capabilities of agents in the system. We formalize the notion of capacity for discrete-event systems, and present a heuristic for reducing a supervisor's capacity usage while enforcing a specification.

关键词： Control systems Discrete-event systems Complexity theory Intelligent agents Task analysis

来源：评论

学校读者我要写书评

暂无评论

Probing the limits of variational quantum algorithms for nonlinear ground states on real quantum hardware: The effects of noise

引用

Physical Review A 2025年第1期111卷 012626-012626页

作者： Muhammad Umer Eleftherios Mastorakis Sofia Evangelou Dimitris G. Angelakis Centre for Quantum Technologies National University of Singapore 3 Science Drive 2 Singapore 117543 School of Electrical and Computer Engineering Technical University of Crete Chania 73100 Greece AngelQ Quantum Computing 531A Upper Cross Street #04-95 Hong Lim Complex Singapore 051531

A recently proposed variational quantum algorithm has expanded the horizon of variational quantum computing to nonlinear physics and fluid dynamics. In this work, we probe the ability of such approach to capture the ground state of the nonlinear Schrödinger equation for a range of parameters on real superconducting quantum processors. Specifically, we study the expressivity of real-amplitude, hardware-efficient Ansatz to capture the ground state of this nonlinear system across various interaction regimes and implement different noise scenarios in both simulators and cloud processors. Our investigation reveals that although quantum hardware noise impairs the evaluation of the energy cost function, certain small instances of the problem consistently converge to the ground state. We test and demonstrate a variety of cases on IBM Q superconducting devices and analyze the discrepancies in the energy cost function evaluation due to quantum hardware noise. These discrepancies are absent in the state fidelity estimation because of the shallow state preparation circuit. Our comprehensive analysis offers valuable insights into the practical implementation and advancement of the variational algorithms for nonlinear problems.

关键词： Cost functions

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：