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Application of Deep Neural Network Algorithm in Speech Enhancement of Online English Learning Platform 深度神经网络算法在在线英语学习平台语音增强中的应用
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-10-26 DOI: 10.4108/eetsis.v10i1.2577
Haiyan Peng, Min Zhang
INTRODUCTION: In the online English learning platform, noise interference makes people unable to hear the content of English teaching clearly, which leads to a great reduction in the efficiency of English learning. In order to improve the voice quality of online English learning platform, the speech enhancement method of the online English learning platform based on deep neural network is studied.OBJECTIVES: This paper proposes a deep neural network-based speech enhancement method for online English learning platform in order to obtain more desirable results in the application of speech quality optimization.METHODS: The optimized VMD (Variable Modal Decomposition) algorithm is combined with the Moth-flame optimization algorithm to find the optimal solution to obtain the optimal value of the decomposition mode number and the penalty factor of the variational modal decomposition algorithm, and then the optimized variational modal decomposition algorithm is used to filter the noise information in the speech signal; Through the network speech enhancement method based on deep neural network learning, the denoised speech signal is taken as the enhancement target to achieve speech enhancement.RESULTS: The research results show that the method not only has significant denoising ability for speech signal, but also after this method is used, PESQ value of speech quality perception evaluation of speech signal is greater than 4.0dB, the spectral features are prominent, and the speech quality is improved.CONCLUSION: Through experiments from three perspectives: speech signal denoising, speech quality enhancement and speech spectrum information, the usability of the method in this paper is confirmed. 
导读:在在线英语学习平台中,噪音干扰使人们无法清晰地听到英语教学的内容,导致英语学习的效率大大降低。为了提高在线英语学习平台的语音质量,研究了基于深度神经网络的在线英语学习平台语音增强方法。目的:本文提出了一种基于深度神经网络的在线英语学习平台语音增强方法,以期在语音质量优化应用中获得更理想的效果。方法:将优化后的变模态分解(VMD)算法与Moth-flame优化算法相结合,寻找最优解,得到变分模态分解算法的分解模数和惩罚因子的最优值,然后利用优化后的变分模态分解算法对语音信号中的噪声信息进行滤波;通过基于深度神经网络学习的网络语音增强方法,将去噪后的语音信号作为增强目标,实现语音增强。结果:研究结果表明,该方法不仅对语音信号具有显著的去噪能力,而且使用该方法后,语音信号的语音质量感知评价PESQ值大于4.0dB,频谱特征突出,语音质量得到改善。结论:通过语音信号去噪、语音质量增强和语音频谱信息三个方面的实验,验证了本文方法的可用性。
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引用次数: 1
Multi-target trajectory tracking in multi-frame video images of basketball sports based on deep learning 基于深度学习的多帧篮球运动视频图像多目标轨迹跟踪
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-10-18 DOI: 10.4108/eetsis.v9i6.2591
Yong Gong, Gautam Srivastava
INTRODUCTION: There is occlusion interference in the multi-target visual tracking process of basketball video images, which leads to poor accuracy of multi-target trajectory tracking. This paper studies the multi-target trajectory tracking method in multi-frame video images of basketball sports based on deep learning.OBJECTIVES: Aiming at the problem of target occlusion in the tracking process and the problem of trajectory tracking anomaly caused by target occlusion, a modified algorithm is proposed.METHODS:  The method is divided into two parts: detection and tracking. In the detection part, the YOLOv3 algorithm in deep learning technology is used to detect each target in the video, and the original YOLOv3 backbone network Darknet-53 is replaced by the lightweight backbone network MobileNetV2 to extract the target features.RESULTS: Based on the target detection results, the Kalman filter is used to predict the next position and bounding box size of the target to obtain the target trajectory prediction results according to the current target position, then a hierarchical data association algorithm is designed, and multi-target tracking of the same category is completed based on the target appearance feature similarity and feature similarity.CONCLUSION: The experimental results show that the method can accurately detect the targets in multi-frame video images in basketball sports and obtain high-precision target trajectory tracking results.
摘要:篮球视频图像的多目标视觉跟踪过程中存在遮挡干扰,导致多目标轨迹跟踪精度不高。本文研究了基于深度学习的多帧篮球运动视频图像的多目标轨迹跟踪方法。目的:针对跟踪过程中目标遮挡问题以及目标遮挡引起的轨迹跟踪异常问题,提出了一种改进算法。方法:该方法分为检测和跟踪两部分。在检测部分,采用深度学习技术中的YOLOv3算法对视频中的每个目标进行检测,并将原有的YOLOv3骨干网Darknet-53替换为轻量级骨干网MobileNetV2提取目标特征。结果:在目标检测结果的基础上,利用卡尔曼滤波预测目标的下一个位置和边界框大小,根据当前目标位置获得目标轨迹预测结果,然后设计分层数据关联算法,基于目标外观特征相似度和特征相似度完成同类别多目标跟踪。结论:实验结果表明,该方法能够准确检测篮球运动多帧视频图像中的目标,获得高精度的目标轨迹跟踪结果。
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引用次数: 3
Analysis and Design of Power System Transformer Standard Based on Knowledge Graph 基于知识图谱的电力系统变压器标准分析与设计
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-10-12 DOI: 10.4108/eetsis.v9i6.2642
Yuzhong Zhou, Zhèng-Hóng Lin, Yuan La, Junkai Huang, Xin Wang
The transformer can convert one kind of electric energy such as AC current and AC voltage into another kind of electric energy with the same frequency. Knowledge graph (KG) can describe various entities and concepts in the real world and their relationships, and it can be considered as a semantic network for power system transformer. Hence, it is of vital importance to analyze and design the power system transformer standard based on the knowledge graph. To this end, we firstly examine the power system transformer with one KG node and one eavesdropper E, where the eavesdropper E can overhear the network from the source, which may cause physical-layer secure issue and an outage probability event. To deal with the issue, we analyze and design the system secure performance under the eavesdropper and define the outage probability for system security, by providing analytical expression of outage probability. We further investigate the power system transformer with multiple KG nodes which can help strengthen the system security and reliability. For such a system, we analyze and design the system secure performance under the eavesdropper and define the outage probability for system security, by providing analytical expression of outage probability. Finally, we give some simulations to analyze the impact of secure transformer standard on the power system, and verify the accuracy of our proposed analytical expression for the the power system transformer standard based on the knowledge graph.
变压器可以将交流电流、交流电压等一种电能转换成另一种频率相同的电能。知识图(KG)可以描述现实世界中的各种实体和概念及其相互关系,可以看作是电力系统变压器的语义网络。因此,基于知识图谱对电力系统变压器标准进行分析和设计具有重要意义。为此,我们首先考察具有一个KG节点和一个窃听者E的电力系统变压器,窃听者E可以从源处窃听网络,这可能导致物理层安全问题和停电概率事件。为了解决这个问题,我们分析和设计了窃听器作用下的系统安全性能,并定义了系统安全的中断概率,给出了中断概率的解析表达式。进一步研究了多KG节点的电力系统变压器,增强了系统的安全性和可靠性。针对该系统,分析设计了窃听器作用下的系统安全性能,定义了系统安全的中断概率,给出了中断概率的解析表达式。最后,通过仿真分析了安全变压器标准对电力系统的影响,验证了本文提出的基于知识图谱的电力系统变压器标准解析表达式的准确性。
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引用次数: 5
Research on Knowledge Management of Novel Power System Based on Deep Learning 基于深度学习的新型电力系统知识管理研究
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-10-12 DOI: 10.4108/eetsis.v9i6.2634
Zhèng-Hóng Lin, Jiaxin Lin
With the rapid development of information technology, power system has been developed and applied rapidly. In the power system, fault detection is very important and is one of the key means to ensure the operation of power system. How to effectively improve the ability of fault detection is the most important issue in the research of power system. Traditional fault detection mainly relies on manual daily inspection, and power must be cut off during maintenance, which affects the normal operation of the power grid. In case of emergency, the equipment can not be powered off, which may lead to missed test and bury potential safety hazards. To solve these issues, in this paper, we study the knowledge management based power system by employing the deep learning technique. Specifically, we firstly introduce the data augmentation in the knowledge management based power system and the associated activated functions. We then develop the deep network architecture to extract the local spatial features among the data of the knowledge management based power system. We further provide several training strategies for the data classification in the knowledge management based power system, where the cross entropy based loss function is used. Finally, some experimental results are demonstrated to show the effectiveness of the proposed studies for the knowledge management based power system.
随着信息技术的飞速发展,电力系统得到了迅速的发展和应用。在电力系统中,故障检测非常重要,是保证电力系统正常运行的关键手段之一。如何有效地提高故障检测能力是电力系统研究的重要课题。传统的故障检测主要依靠人工日常巡检,维护时必须断电,影响电网的正常运行。在紧急情况下,设备不能关闭电源,可能会导致错过测试,埋下安全隐患。为了解决这些问题,本文采用深度学习技术对基于知识管理的电力系统进行了研究。具体来说,我们首先介绍了基于知识管理的电力系统中的数据扩充和相关的激活功能。然后,我们开发了深度网络架构来提取基于知识管理的电力系统数据中的局部空间特征。在基于知识管理的电力系统中,我们进一步提出了几种基于交叉熵损失函数的数据分类训练策略。最后,通过实验验证了所提方法在基于知识管理的电力系统中的有效性。
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引用次数: 1
Analysis and Design of Standard Knowledge Service System based on Deep Learning 基于深度学习的标准知识服务系统分析与设计
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-10-12 DOI: 10.4108/eetsis.v9i6.2637
Yuzhong Zhou, Zhèng-Hóng Lin, Liang-Jung Tu, Junkai Huang, Zifeng Zhang
The development of information technology has changed the mode of communication of social information, and this change has put forward new requirements on the contents, methods and even objects of information science research. Knowledge service in the information service process can extract knowledge and information content from various explicit and implicit knowledge resources according to people’s needs, build knowledge networks, and provide knowledge content or solutions for users’ problems. Hence, it is very important to investigate how to analyze and design the advanced standard knowledge service system based on deep learning. To this end, we firstly introduce the typical deep learning networks of convolutional neural network (CNN) for the knowledge service system, and then employ the CNN to implement the knowledge classification based on deep learning. Finally, some simulation results on the knowledge service system are presented to validate the proposed studies in this paper.
信息技术的发展改变了社会信息的传播方式,这种变化对情报学研究的内容、方法乃至对象都提出了新的要求。信息服务过程中的知识服务可以根据人们的需要,从各种显性和隐性的知识资源中提取知识和信息内容,构建知识网络,为用户提供知识内容或解决方案。因此,研究如何分析和设计基于深度学习的高级标准知识服务系统是非常重要的。为此,我们首先介绍了用于知识服务系统的典型深度学习网络卷积神经网络(CNN),然后利用卷积神经网络实现基于深度学习的知识分类。最后,给出了知识服务系统的仿真结果来验证本文的研究。
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引用次数: 5
Dynamic Weighted and Heat-map Integrated Scalable Information Path-planning Algorithm 动态加权热图集成可扩展信息路径规划算法
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-10-05 DOI: 10.4108/eetsis.v9i5.1567
Shuhui Bi, Zhihao Li, Mackenzie Brown, Lei Wang, Yuan Xu
Smart storage is widely used for its efficient storage and applications. For making dynamic decisions when robots conflict and eliminating robot conflicts and improving efficiency from a global perspective, path-planning Algorithm will be analyzed and improved by integrating dynamic weighted and heat-map algorithm based on the scalable information of multi-robot in this paper. Firstly, a small storage grid model applicable to a variety of storage modes is established. Second, in order to solve the frontal collision problem of robots, an improved reservation table is established, which greatly reduces the storage space occupied by the reservation table while improving the operation efficiency; the A* algorithm is improved to achieve the purpose of avoiding vertex conflict and edge conflict at the same time; dynamic weighting table is added to solve the multi-robot driving strategy of intersection conflict and ensure that the most urgent goods are out of the warehouse firstly; the heat map algorithm is appended to reasonably allocate tasks, avoiding congested areas and realizing the dynamic assignment of tasks. Finally, the simulation was done by the proposed path planning method, the average transportation time was reduced by 14.97% comparing with the traditional path algorithm.
智能存储以其高效的存储和应用得到了广泛的应用。为了在机器人发生冲突时做出动态决策,从全局角度消除机器人冲突,提高效率,本文将基于多机器人的可扩展信息,结合动态加权算法和热图算法,对路径规划算法进行分析和改进。首先,建立了适用于多种存储方式的小型存储网格模型。其次,为了解决机器人的正面碰撞问题,建立了改进的预约表,在提高操作效率的同时,大大减少了预约表占用的存储空间;对A*算法进行改进,达到同时避免顶点冲突和边冲突的目的;增加动态加权表,解决了交叉口冲突的多机器人驾驶策略,保证最紧急的货物先出库;加入热图算法,合理分配任务,避免拥挤区域,实现任务的动态分配。最后,采用本文提出的路径规划方法进行仿真,与传统路径算法相比,平均运输时间缩短了14.97%。
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引用次数: 1
ODET: Optimized Deep ELM-based Transfer Learning for Breast Cancer Explainable Detection 基于深度elm的乳腺癌可解释检测优化迁移学习
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-09-29 DOI: 10.4108/eetsis.v9i6.1747
Ziquan Zhu, Shuihua Wang
INTRODUCTION: Breast cancer is one of the most common malignant tumors in women, and the incidence rate is increasing year by year. Women in every country in the world may develop breast cancer at any age after puberty. The cause of breast cancer is not fully understood. At present, the main methods of breast cancer detection are inefficient. Researchers are trying to use computer technology to detect breast cancer. But there are some still limitations.METHODS: We propose a network (ODET) to detect breast cancer based on ultrasound images. In this paper, we use ResNet50 as the backbone model. We make some modifications to the backbone model by deep ELM-based transfer learning. After these modifications, the network is named DET. However, DET still has some shortcomings because the parameters in DET are randomly assigned and will not change in the experiment. In this case, we select BA to optimize DET. The optimized DET is named ODET.RESULTS: The proposed ODET gets the F1-score (F1), precision (PRE), specificity (SPE), sensitivity (SEN), and accuracy (ACC) are 93.16%±1.12%, 93.28%±1.36%, 98.63%±0.31%, 93.96%±1.85%, and 97.84%±0.37%, respectively.CONCLUSION: It proves that the proposed ODET is an effective method for breast cancer detection.
乳腺癌是女性最常见的恶性肿瘤之一,发病率呈逐年上升趋势。世界上每个国家的妇女都可能在青春期后的任何年龄患上乳腺癌。乳腺癌的病因尚不完全清楚。目前,乳腺癌检测的主要方法效率低下。研究人员正试图利用计算机技术检测乳腺癌。但仍有一些限制。方法:提出一种基于超声图像的乳腺癌检测网络(ODET)。在本文中,我们使用ResNet50作为骨干模型。我们通过基于深度elm的迁移学习对骨干模型进行了一些修改。经过这些修改后,网络被命名为DET。但是DET仍然存在一些不足,因为DET中的参数是随机分配的,在实验中不会改变。在本例中,我们选择BA对DET进行优化,优化后的DET命名为ODET。结果:所建立的ODET的F1评分(F1)、精密度(PRE)、特异度(SPE)、灵敏度(SEN)、准确度(ACC)分别为93.16%±1.12%、93.28%±1.36%、98.63%±0.31%、93.96%±1.85%、97.84%±0.37%。结论:ODET是一种有效的乳腺癌检测方法。
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引用次数: 0
E-Learning through an Adaptive cMOOC: Is it Worthy of Further Research? 基于自适应cMOOC的网络学习:是否值得进一步研究?
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-09-20 DOI: 10.4108/eetsis.v9i6.2713
Soumaya El Emrani, M. Palomo-duarte, José Miguel Mota, J. Dodero
This paper describes the types of MOOC considered by researchers, and highlights the latter’s focus on Connectivist MOOC. In addition, it analyses MOOC methodologies, and learners’ interest in MOOC based on the concepts of adaptability, connectivism, and socio-constructivism. This is to address the high dropout rate issue on MOOC platforms. The main objective of this work is to review the empirical results reported in these studies. To reach this goal, a Systematic Literature Review of 798 papers was carried out from 2013 until April 2021, where 446 papers were selected as primary studies. The results obtained from the classification and the analysis of the collected data confirmed the importance of continuing research in the field. Based on the concepts of socio-constructivism and adaptability, the objective is to provide an adaptive cMOOC for the profile and the needs of each learner; blending learning styles and pedagogical models with machine learning technologies.
本文描述了研究者考虑的MOOC类型,并强调了后者对连接主义MOOC的关注。此外,本文还基于适应性、连接主义和社会建构主义的概念分析了MOOC的方法论以及学习者对MOOC的兴趣。这是为了解决MOOC平台的高辍学率问题。本工作的主要目的是回顾这些研究报告的实证结果。为了实现这一目标,从2013年到2021年4月,对798篇论文进行了系统文献综述,其中446篇论文被选为主要研究。对收集到的数据进行分类和分析得到的结果证实了在该领域继续研究的重要性。基于社会建构主义和适应性的概念,目标是根据每个学习者的特点和需求提供适应性的cMOOC;将学习风格和教学模式与机器学习技术相结合。
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引用次数: 3
An Overview on Active Transmission Techniques for Wireless Scalable Networks 无线可扩展网络主动传输技术综述
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-09-13 DOI: 10.4108/eetsis.v9i6.2419
Yajuan Tang, Shiwei Lai, Zichao Zhao, Yanyi Rao, Wen Zhou, Fusheng Zhu, Liming Chen, Dan Deng, J. Wang, Tao Cui, Yuwei Zhang, Jun Liu, Di Wu, Huan-guang Huang, Xuan-Yue Zhou, Weishi Zhou, Zhao Wang, Kai Chen, C. Li, Yun Li, Kaimeno Dube, Abbarbas Muazu, Nakilavai Rono, Suili Feng, J. Qin, Haige Xiang, Zhigang Cao, Lieguang Zeng, Zhixing Yang, Zhi Wang, Yan Xu, Xiaosheng Lin, Zizhi Wang, Yu Zhang, B. Lu, Wanxin Zou
Currently, massive data communication and computing pose a severe challenge on existing wireless network architecture, from various aspects such as data rate, latency, energy consumption and pricing. Hence, it is of vital importance to investigate active wireless transmission for wireless networks. To this end, we first overview the data rate of wireless active transmission. We then overview the latency of wireless active transmission, which is particularly important for the applications of monitoring services. We further overview the spectral efficiency of the active transmission, which is particularly important for the battery-limited Internet of Things (IoT) networks. After these overviews, we give several critical challenges on the active transmission, and we finally present feasible solutions to meet these challenges. The work in this paper can serve as an important reference to the wireless networks and IoT networks.
目前,海量数据通信和计算对现有的无线网络架构提出了严峻的挑战,从数据速率、时延、能耗和价格等方面都提出了挑战。因此,研究无线网络的主动无线传输具有十分重要的意义。为此,我们首先概述了无线主动传输的数据速率。然后,我们概述了无线主动传输的延迟,这对于监控服务的应用尤为重要。我们进一步概述了主动传输的频谱效率,这对于电池有限的物联网(IoT)网络尤为重要。在这些概述之后,我们给出了主动传输的几个关键挑战,并最终提出了应对这些挑战的可行解决方案。本文的工作可以为无线网络和物联网网络提供重要的参考。
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引用次数: 4
Supervised Learning-Based Approach Mining ABAC Rules from Existing RBAC Enabled Systems 基于监督学习的ABAC规则挖掘方法
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-09-07 DOI: 10.4108/eetsis.v5i16.1560
G. Sahani, Chirag S. Thaker, Sanjay M. Shah
Attribute-Based Access Control (ABAC) is an emerging access control model. It is the more flexible, scalable, and most suitable access control model for today’s large-scale, distributed, and open application environments. It has become an emerging research area nowadays. However, Role-Based Access Control (RBAC) has been the most widely used and general access control model so far. It is simple in administration and policy definition. But user-to-role assignment process of RBAC makes it non-scalable for large-scale organizations with a large number of users. To scale up the growing organization, RBAC needs to be transformed into ABAC. Transforming existing RBAC systems into ABAC is complicated and time-consuming. In this paper, we present a supervised machine learning-based approach to extract attribute-based conditions from the existing RBAC system to construct ABAC rules at the primary level and simplify the process of the transforming RBAC system to ABAC.
基于属性的访问控制(ABAC)是一种新兴的访问控制模型。对于当今的大规模、分布式和开放的应用程序环境,它是更灵活、可扩展和最合适的访问控制模型。它已成为当今一个新兴的研究领域。基于角色的访问控制(RBAC)是目前应用最广泛、最通用的访问控制模型。它在管理和策略定义方面很简单。但是RBAC的用户到角色分配过程使得它对于拥有大量用户的大型组织来说是不可扩展的。为了扩大组织规模,RBAC需要转变为ABAC。将现有的RBAC系统转换为ABAC是一项复杂且耗时的工作。本文提出了一种基于监督机器学习的方法,从现有的RBAC系统中提取基于属性的条件,在初级层面构建ABAC规则,简化了RBAC系统向ABAC转换的过程。
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引用次数: 0
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EAI Endorsed Transactions on Scalable Information Systems
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