检索结果-内蒙古大学图书馆

2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023

作者： Inoue, Asuka Kashiwazaki, Takahiro Yamashima, Taichi Takanashi, Naoto Kazama, Takushi Enbutsu, Koji Watanabe, Kei Umeki, Takeshi Endo, Mamoru Furusawa, Akira NTT Device Technology Labs NTT Corporation 3-1 Morinosato Wakamiya Kanagawa Atsugi243-0198 Japan Department of Applied Physics School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-8656 Japan Optical Quantum Computing Research Team RIKEN Center for Quantum Computing 2-1 Hirosawa Saitama Wako351-0198 Japan

ISBN: (纸本)9798350345995

Measurement-based optical quantum computers (MBOQCs) using continuous-variables (CVs) of light are a candidate for large-scale fault-tolerant quantum computing [1]. This form of processing has a high carrier frequency of light, so it can also perform ultra-fast quantum computing. To achieve ultra-fast MBOQCs, broadband squeezed light generation and ultra-fast real-time amplitude measurement are required. So far, over-4.5-dB squeezed light generation, which is required for preparing a two-dimensional cluster state, has been demonstrated in THz bandwidth by using noise intensity measurement with a narrow bandwidth [2,3]. However, the real-time amplitude measurement frequency is limited to several GHz. Up to now, the highest frequency is still limited to 9 GHz with 0.1-dB squeezing even though specific detectors have been designed [4]. This is because there is a tradeoff relationship between the bandwidth and the quantum efficiency of homodyne detectors. As a result, we cannot use a fast balanced homodyne detector such as a detector for high-speed optical communications with a large optical loss, which collapses the quantum states of light. To achieve ultra-fast real-time amplitude measurement, we need a new measurement method to overcome the trade-off limitations. © 2023 IEEE.

关键词： Bandwidth

来源：评论

学校读者我要写书评

暂无评论

Generation of over-8-dB squeezed light by a broadband waveguide optical parametric amplifier toward fault-tolerant quantum computers

Generation of over-8-dB squeezed light by a broadband wavegu...

引用

2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023

作者： Kashiwazaki, Takahiro Yamashima, Taichi Enbutsu, Koji Kazama, Takushi Inoue, Asuka Fukui, Kosuke Endo, Mamoru Umeki, Takeshi Furusawa, Akira NTT Device Technology Labs NTT Corporation 3-1 Morinosato Wakamiya Kanagawa Atsugi243-0198 Japan Department of Applied Physics School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-8656 Japan Optical Quantum Computing Research Team RIKEN Center for Quantum Computing 2-1 Hirosawa Saitama Wako351-0198 Japan

ISBN: (纸本)9798350345995

Measurement-based optical quantum computers (MBOQCs) using continuous-variables (CVs) of traveling wave of light have a potential for ultra-fast fault-tolerant quantum information processing [1]. In CV MBOQCs, broadband high-level squeezed light is the most essential quantum resource. Broad bandwidth not only enables high-clock frequency computation, but also contributes to the realization of large-scale quantum computers using time-domain-multiplexed quantum entanglement. This is because squeezed light with a broader bandwidth enables us to define many more quantum wave packets in a narrow time range. On the other hand, high-level squeezing contributes to high-fidelity quantum operation and suppression of quantum errors. For example, over-8.3-dB squeezing enables us to achieve a fault-tolerant CV MBOQC with Gottesman-Kitaev-Preskill (GKP) coding [2]. © 2023 IEEE.

关键词： Parametric amplifiers

来源：评论

学校读者我要写书评

暂无评论

Intrapartum fever prediction for pregnant woman from microbial data 3

Intrapartum fever prediction for pregnant woman from microbi...

引用

3rd International Conference on Advancement in Electrical and Electronic Engineering, ICAEEE 2024

作者： Hossain, Afifa Morshed, Md. Samin Ashraf, Faisal Bin Reena, Ismatara Mumu, Sumona Hoque Uddin, Jasim Islamic University of Technology Dept. of CSE Gazipur Bangladesh University of Arkansas at Little Rock COSMOS Lab United States University of California Riverside Dept. of CSE United States UL Lafayette School of Kinesiology United States Cardiff Metropolitan University Dept. of Applied Computing and Engineering United Kingdom

ISBN: (纸本)9798350388282

The usage of deep learning in microbial data has come a long way since its early days. For fever detection during pregnancy, this paper collects microorganism data from vaginal microbes and trains machine-learning models to classify their class, taxa, phylum, and distribution. This paper presents a novel approach to predicting the etiology of intrapartum fever in pregnant women using machine learning classifiers on vaginal microbial data. High-throughput sequencing was used to analyze a diverse dataset of microbiome abundance profiles. Various classification algorithms were employed to develop predictive models, including logistic regression, support vector machines, and random forests. The study also aimed to identify key microbial taxa or functional profiles associated with each etiology. The XGBoost algorithm emerged as the most accurate, with an accuracy rate of 86%. The study underscores the significance of features such as chills and delivery mode in predicting intrapartum fever. The findings suggest that machine learning can enhance diagnostic accuracy and guide interventions, with potential implications for improving clinical decision-making and care for pregnant women and neonates. Further research is needed to validate these findings and explore broader machine learning applications in reproductive health. © 2024 IEEE.

关键词： Microorganisms

来源：评论

学校读者我要写书评

暂无评论

Semi/Fully-Automated Segmentation of Gastric-Polyp Using Aquila-Optimization-Algorithm Enhanced Images

引用

Computers, Materials & Continua 2022年第2期70卷 4087-4105页

作者： Venkatesan Rajinikanth Shabnam Mohamed Aslam Seifedine Kadry Orawit Thinnukool Department of Electronics and Instrumentation Engineering St.Joseph’s College of Engineering Chennai600119India Department of Information Technology College of Computer and Information SciencesMajmaah UniversityAl-Majmaah11952Saudi Arabia Faculty of Applied Computing and Technology Noroff University CollegeKristiansand4608Norway Research Group of Embedded Systems and Mobile Application in Health Science College of ArtsMedia and TechnologyChiang Mai UniversityChiang Mai50200Thailand

The incident rate of the Gastrointestinal-Disease(GD)in humans is gradually rising due to a variety of reasons and the Endoscopic/Colonoscopic-Image(EI/CI)supported evaluation of the GD is an approved *** and evaluation of the suspicious section of the EI/CI is essential to diagnose the disease and its *** proposed research aims to implement a joint thresholding and segmentation framework to extract the Gastric-Polyp(GP)with better *** proposed GP detection system consist;(i)Enhancement of GP region using Aquila-Optimization-Algorithm supported tri-level thresholding with entropy(Fuzzy/Shannon/Kapur)and between-class-variance(Otsu)technique,(ii)Automated(Watershed/Markov-Random-Field)and semi-automated(Chan-Vese/Level-Set/Active-Contour)segmentation of GPfragment,and(iii)Performance evaluation and validation of the proposed *** experimental investigation was performed using four benchmark EI dataset(CVC-ClinicDB,ETIS-Larib,EndoCV2020 and Kvasir).The similarity measures,such as Jaccard,Dice,accuracy,precision,sensitivity and specificity are computed to confirm the clinical significance of the proposed *** outcome of this research confirms that the fuzzyentropy thresholding combined with Chan-Vese helps to achieve a better similarity measures compared to the alternative schemes considered in this research.

关键词： Endoscopic/colonoscopic-image gastric polyp aquila-optimizationalgorithm fuzzy entropy chan-vese segmentation

来源：评论

学校读者我要写书评

暂无评论

Classification of executive functioning performance post-longitudinal tDCS using functional connectivity and machine learning methods

Classification of executive functioning performance post-lon...

引用

IEEE India Conference (INDICON)

作者： Akash K Rao Vishnu K Menon Shashank Uttrani Ayushman Dixit Dipanshu Verma Varun Dutt Applied Cognitive Science Laboratory Indian Institute of Technology Mandi Mandi India School of Computing and Electrical Engineering Indian Institute of Technology Mandi Mandi India

Executive functioning is a cognitive process that enables humans to plan, organize, and regulate their behavior in a goal-directed manner. Understanding and classifying the changes in executive functioning after longitudinal interventions (like transcranial direct current stimulation (tDCS)) has not been explored in the literature. This study employs functional connectivity and machine learning algorithms to classify executive functioning performance post-tDCS. Fifty subjects were divided into experimental and placebo control groups. EEG data was collected while subjects performed an executive functioning task on Day 1. The experimental group received tDCS during task training from Day 2 to Day 8, while the control group received sham tDCS. On Day 10, subjects repeated the tasks specified on Day 1. Different functional connectivity metrics were extracted from EEG data and eventually used for classifying executive functioning performance using different machine learning algorithms. Results revealed that a novel combination of partial directed coherence and multi-layer perceptron (along with recursive feature elimination) resulted in a high classification accuracy of 95.44%. We discuss the implications of our results in developing real-time neurofeedback systems for assessing and enhancing executive functioning performance post-tDCS administration.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Probing fast quantum circuit refrigeration in the quantum regime

引用

Physical Review applied 2025年第1期23卷 L011003-L011003页

作者： Shuji Nakamura Teruaki Yoshioka Sergei Lemziakov Dmitrii Lvov Hiroto Mukai Akiyoshi Tomonaga Shintaro Takada Yuma Okazaki Nobu-Hisa Kaneko National Institute of Advanced Industrial Science and Technology (AIST) National Metrology Institute of Japan (NMIJ) 1-1-1 Umezono Tsukuba Ibaraki 305-8563 Japan Department of Physics Tokyo University of Science 1-3 Kagurazaka Shinjuku Tokyo 162-0825 Japan RIKEN Center for Quantum Computing (RQC) 2-1 Hirosawa Wako Saitama 351-0198 Japan Pico Group QTF Centre of Excellence Department of Applied Physics Aalto University School of Science P.O. Box 13500 Aalto 00076 Finland

Recent advancements in circuit quantum electrodynamics have enabled precise manipulation and detection of a single energy quantum in quantum systems. A quantum circuit refrigerator (QCR) is capable of electrically cooling an excited population of quantum systems, such as superconducting resonators and qubits, through photon-assisted tunneling of quasiparticles within a superconductor–insulator–normal-metal junction. In this study, we demonstrate fast QCR in the quantum regime. We perform time-resolved measurement of the QCR-induced cooling of photon number inside a superconducting resonator by harnessing a qubit as a photon detector. From the enhanced photon loss rate of the resonator estimated from the ac Stark shift, the QCR was shown to have a cooling power of approximately 300 aW. Furthermore, even below the single energy quantum, a 100-ns pulse on the QCR can reduce the number of photons inside the resonator below thermal equilibrium. Numerical calculations based on the Lindblad master equation successfully reproduce these experimental results.

关键词： Photons

来源：评论

学校读者我要写书评

暂无评论

Symptoms-Based Network Intrusion Detection System

Symptoms-Based Network Intrusion Detection System

引用

7th International Conference on Advances in Visual Informatics, IVIC 2021

作者： Qassim, Qais Saif Jamil, Norziana Mahdi, Mohammed Najah University of Technology and Applied Sciences – Ibri Ibri Oman College of Computing and Informatics Universiti Tenaga Nasional Kajang Malaysia

ISBN: (纸本)9783030902346

Protecting the network perimeters from malicious activities is a necessity and essential defence mechanism against cyberattacks. Network Intrusion Detection system (NIDS) is commonly used as a defense mechanism. This paper presents the Symptoms-based NIDS, a new intrusion detection system approach that learns the normal network behaviours through monitoring a range of network data attributes at the network and the transport layers. The proposed IDS consists of distributed anomaly detection agents and a centralised anomaly classification engine. The detection agents are located at the end nodes of the protected network, detecting anomalies by analysing network traffic and identifying abnormal activities. These agents will capture and analyse the network and the transport headers of individual packets for malicious activities. The agents will communicate with the centralised anomaly classification engine upon detecting a suspicious activity for attack prioritisation and classification. The paper presented a list of network attributes to be considered as classification features to identify anomalies. © 2021, Springer Nature Switzerland AG.

关键词： Machine learning

来源：评论

学校读者我要写书评

暂无评论

Frequency-tunable all-optical broadband measurement of quadrature squeezing by controlling the phase-matching condition of an optical parametric amplifier

Frequency-tunable all-optical broadband measurement of quadr...

引用

2023 Optica Nonlinear Optics Topical Meeting, NLO 2023

作者： Kashiwazaki, Takahiro Inoue, Asuka Yamashima, Taichi Endo, Mamoru Umeki, Takeshi Furusawa, Akira NTT Device Technology Labs NTT Corporation 3-1 Morinosato Wakamiya Atsugi Kanagawa243-0198 Japan Department of Applied Physics School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-8656 Japan Optical Quantum Computing Research Team RIKEN Center for Quantum Computing 2-1 Hirosawa Wako Saitama351-0198 Japan

ISBN: (纸本)9781957171234

We propose frequency-tunable measurement of quadrature squeezing from DC to 10-THz sideband frequencies using a gain-spectrum-shaped optical parametric amplifier. 4.3-dB squeezing at a 10-THz sideband frequency is successfully demonstrated by using periodically poled LiNbO3 waveguides. Optica Nonlinear Optics Topical Meeting 2023 © Optica Publishing Group 2023 © 2023 The Author(s)

关键词： Optical parametric amplifiers

来源：评论

学校读者我要写书评

暂无评论

Model for Recognition of Sign Language and Hand Gesture by Hard Hearing People

Model for Recognition of Sign Language and Hand Gesture by H...

引用

2023 International Conference on Sustainable Communication Networks and Application, ICSCNA 2023

作者： Manjula, R. Jagadeesan, S. Ramalingam, Venkadeshan Vetriselvi, T. Johnpeter, T. Srm Institute of Science and Technology College of Engineering and Technology Department of Computing Technologies Chennai India Vellore Institute of Technology School of Computer Science Engineering and Information Systems Department of Software and Systems Engineering Tamilnadu Vellore India Information Technology Department University of Technology and Applied Sciences-Shinas Branch Sultanate of Oman Oman Vellore Institute of Technology School of Computer Science and Engineering Department of Iot Tamilnadu Vellore India K.Ramakrishnan College of Engineering Department of Computer Science and Engineering Trichy India

ISBN: (纸本)9798350313987

Hard hearing and deaf people are communicating with other people using the sign language. This is the only way of communication of such people to convey Since this is the only means by which these individuals can communicate, it is imperative that others be able to understand their language. Sign language recognition by computer begins with the acquisition of sign gestures and ends with recognition and conversion to text or voice. Static and dynamic are the two ways of sign gestures used. This study aims at focusing on the dynamic gesture recognition and the steps for recognizing sign language are discussed. The collected data are preprocessed and feature are extracted for classification. Finally the results are all investigated and developed for single user. © 2023 IEEE.

关键词： Gesture analysis Hand gesture recognition Hand tracking Sign language

来源：评论

学校读者我要写书评

暂无评论

Hilbert-Peano and Zigzag: Two Approaches Mapping Pattern of Digital Watermarking for Text Images Authentication 7

Hilbert-Peano and Zigzag: Two Approaches Mapping Pattern of ...

引用

7th International Conference on Software Engineering and Computer Systems and 4th International Conference on Computational Science and Information Management, ICSECS-ICOCSIM 2021

作者： Ghani, Aqilah Abd. Izhar Hisham, Syifak Arshad, Nurul Wahidah Faculty of Computing College of Computing and Applied Sciences Universiti Malaysia Pahang Pekan26600 Malaysia Faculty of Electrical and Electronic Engineering Technology College of Engineering Technology Universiti Malaysia Pahang Pekan26600 Malaysia

ISBN: (纸本)9781665414074

The wide increment of information and communication technology nowadays in line with the usage of digital documents, the user from different organizations such as education, military, medical, business, and others tend to transfer any official file through various digital platforms. Thus, to secure this confidential data, a digital watermarking technique was chosen. This paper proposed an improved mapping pattern method of a fragile watermarking authentication algorithm for text images. There are various methods for watermark embedding, which mapping pattern is one of them. The aim is to validate and compare the SCAN pattern for digital watermarking in order to produce a fast and efficient authentication algorithm. We proposed a Zigzag SCAN pattern algorithm and compared it with the proposed Hilbert-Peano scheme. The result from this paper shows that Zigzag SCAN algorithm contributed to a superior performance in regard to processing time, while PSNR and MSE are similar. © 2021 IEEE.

关键词： Authentication

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：