首页 > 最新文献

Journal of Intelligent Systems最新文献

英文 中文
Intelligent gloves: An IT intervention for deaf-mute people 智能手套:一种针对聋哑人的IT干预
IF 3 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2023-01-01 DOI: 10.1515/jisys-2022-0076
Amal Babour, Hind Bitar, Ohoud Alzamzami, D. Alahmadi, Amal Barsheed, Amal AlGhamdi, Hanadi AlMshjary
Abstract Deaf-mute people have much potential to contribute to society. However, communication between deaf-mutes and non-deaf-mutes is a problem that isolates deaf-mutes from society and prevents them from interacting with others. In this study, an information technology intervention, intelligent gloves (IG), a prototype of a two-way communication glove, was developed to facilitate communication between deaf-mutes and non-deaf-mutes. IG consists of a pair of gloves, flex sensors, an Arduino nano, a screen with a built-in microphone, a speaker, and an SD card module. To facilitate communication from the deaf-mutes to the non-deaf-mutes, the flex sensors sense the hand gestures and connected wires, and then transmit the hand movement signals to the Arduino nano where they are translated into words and sentences. The output is displayed on a small screen attached to the gloves, and it is also issued as voice from the speakers attached to the gloves. For communication from the non-deaf-mutes to the deaf-mute, the built-in microphone in the screen senses the voice, which is then transmitted to the Arduino nano to translate it to sentences and sign language, which are displayed on the screen using a 3D avatar. A unit testing of IG has shown that it performed as expected without errors. In addition, IG was tested on ten participants, and it has been shown to be both usable and accepted by the target users.
聋哑人有很大的潜力为社会做贡献。然而,聋哑人与非聋哑人之间的交流是一个问题,使聋哑人与社会隔离,阻碍了他们与他人的互动。本研究为促进聋哑人与非聋哑人之间的交流,开发了一种信息技术干预——智能手套(IG),即双向交流手套的原型。IG由一副手套、伸缩传感器、Arduino纳米芯片、一个内置麦克风的屏幕、一个扬声器和一个SD卡模块组成。为了方便聋哑人与非聋哑人之间的交流,flex传感器感知手势和连接的电线,然后将手部运动信号传输给Arduino纳米,并将其翻译成单词和句子。输出显示在连接在手套上的小屏幕上,也可以通过连接在手套上的扬声器发出声音。为了实现非聋哑人与聋哑人之间的交流,屏幕上的内置麦克风感知声音,然后将声音传输到Arduino nano,将其翻译成句子和手语,并通过3D化身显示在屏幕上。IG的单元测试表明,它按照预期执行,没有出现错误。此外,IG还对10名参与者进行了测试,结果表明它既可用又被目标用户所接受。
{"title":"Intelligent gloves: An IT intervention for deaf-mute people","authors":"Amal Babour, Hind Bitar, Ohoud Alzamzami, D. Alahmadi, Amal Barsheed, Amal AlGhamdi, Hanadi AlMshjary","doi":"10.1515/jisys-2022-0076","DOIUrl":"https://doi.org/10.1515/jisys-2022-0076","url":null,"abstract":"Abstract Deaf-mute people have much potential to contribute to society. However, communication between deaf-mutes and non-deaf-mutes is a problem that isolates deaf-mutes from society and prevents them from interacting with others. In this study, an information technology intervention, intelligent gloves (IG), a prototype of a two-way communication glove, was developed to facilitate communication between deaf-mutes and non-deaf-mutes. IG consists of a pair of gloves, flex sensors, an Arduino nano, a screen with a built-in microphone, a speaker, and an SD card module. To facilitate communication from the deaf-mutes to the non-deaf-mutes, the flex sensors sense the hand gestures and connected wires, and then transmit the hand movement signals to the Arduino nano where they are translated into words and sentences. The output is displayed on a small screen attached to the gloves, and it is also issued as voice from the speakers attached to the gloves. For communication from the non-deaf-mutes to the deaf-mute, the built-in microphone in the screen senses the voice, which is then transmitted to the Arduino nano to translate it to sentences and sign language, which are displayed on the screen using a 3D avatar. A unit testing of IG has shown that it performed as expected without errors. In addition, IG was tested on ten participants, and it has been shown to be both usable and accepted by the target users.","PeriodicalId":46139,"journal":{"name":"Journal of Intelligent Systems","volume":"6 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84578118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aspect-based sentiment analysis on multi-domain reviews through word embedding 基于词嵌入的多领域评论情感分析
IF 3 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2023-01-01 DOI: 10.1515/jisys-2023-0001
M. Venu Gopalachari, Sangeeta Gupta, Salakapuri Rakesh, Dharmana Jayaram, Pulipati Venkateswara Rao
Abstract The finest resource for consumers to evaluate products is online product reviews, and finding such reviews that are accurate and helpful can be difficult. These reviews may sometimes be corrupted, biased, contradictory, or lacking in detail. This opens the door for customer-focused review analysis methods. A method called “Multi-Domain Keyword Extraction using Word Vectors” aims to streamline the customer experience by giving them reviews from several websites together with in-depth assessments of the evaluations. Using the specific model number of the product, inputs are continuously grabbed from different e-commerce websites. Aspects and key phrases in the reviews are properly identified using machine learning, and the average sentiment for each keyword is calculated using context-based sentiment analysis. To precisely discover the keywords in massive texts, word embedding data will be analyzed by machine learning techniques. A unique methodology developed to locate trustworthy reviews considers several criteria that determine what makes a review credible. The experiments on real-time data sets showed better results compared to the existing traditional models.
消费者评价产品的最佳资源是在线产品评论,而找到这样的评论是准确和有帮助的可能是困难的。这些评论有时可能是错误的、有偏见的、矛盾的或缺乏细节的。这为以客户为中心的评审分析方法打开了大门。一种名为“使用词向量的多领域关键字提取”的方法旨在通过给客户提供来自多个网站的评论以及对评估的深入评估来简化客户体验。使用产品的特定型号,不断从不同的电子商务网站获取输入。使用机器学习正确识别评论中的方面和关键短语,并使用基于上下文的情感分析计算每个关键字的平均情绪。为了在海量文本中精确地发现关键词,词嵌入数据将通过机器学习技术进行分析。开发了一种独特的方法来定位值得信赖的评论,它考虑了几个标准,这些标准决定了什么使评论可信。在实时数据集上的实验表明,与现有的传统模型相比,效果更好。
{"title":"Aspect-based sentiment analysis on multi-domain reviews through word embedding","authors":"M. Venu Gopalachari, Sangeeta Gupta, Salakapuri Rakesh, Dharmana Jayaram, Pulipati Venkateswara Rao","doi":"10.1515/jisys-2023-0001","DOIUrl":"https://doi.org/10.1515/jisys-2023-0001","url":null,"abstract":"Abstract The finest resource for consumers to evaluate products is online product reviews, and finding such reviews that are accurate and helpful can be difficult. These reviews may sometimes be corrupted, biased, contradictory, or lacking in detail. This opens the door for customer-focused review analysis methods. A method called “Multi-Domain Keyword Extraction using Word Vectors” aims to streamline the customer experience by giving them reviews from several websites together with in-depth assessments of the evaluations. Using the specific model number of the product, inputs are continuously grabbed from different e-commerce websites. Aspects and key phrases in the reviews are properly identified using machine learning, and the average sentiment for each keyword is calculated using context-based sentiment analysis. To precisely discover the keywords in massive texts, word embedding data will be analyzed by machine learning techniques. A unique methodology developed to locate trustworthy reviews considers several criteria that determine what makes a review credible. The experiments on real-time data sets showed better results compared to the existing traditional models.","PeriodicalId":46139,"journal":{"name":"Journal of Intelligent Systems","volume":"20 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78466644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Face recognition of remote monitoring under the Ipv6 protocol technology of Internet of Things architecture 物联网架构下Ipv6协议技术下的远程监控人脸识别
Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2023-01-01 DOI: 10.1515/jisys-2022-0283
Bo Fu
Abstract With the advent of the Internet of Things (IoT) era, the application of intelligent devices in the network is becoming more and more extensive, and the monitoring technology is gradually developing towards the direction of intelligence and digitization. As a hot topic in the field of computer vision, face recognition faces problems such as low level of intelligence and long processing time. Therefore, under the technical support of the IoTs, the research uses internet protocol cameras to collect face information, improves the principal component analysis (PCA), poses a PLV algorithm, and then applies it to the face recognition system for remote monitoring. The outcomes demonstrate that in the Olivetti Research Laboratory face database, the accuracy of PLV is relatively stable, and the highest and lowest are 98 and 94%, respectively. In Yale testing, the accuracy of this algorithm is 12% higher than that of PCA algorithm; In the database of Georgia Institute of Technology (GT), the PLV algorithm requires a time range of 0.2–0.3 seconds and has high operational efficiency. In the selected remote monitoring face database, the accuracy of the method is stable at more than 90%, with the highest being 98%, indicating that it can effectively improve the accuracy of face recognition and provide a reference technical means for further optimization of the remote monitoring system.
随着物联网(IoT)时代的到来,智能设备在网络中的应用越来越广泛,监控技术也逐渐朝着智能化、数字化的方向发展。人脸识别作为计算机视觉领域的研究热点,面临着智能水平低、处理时间长等问题。因此,本研究在物联网的技术支持下,利用互联网协议摄像头采集人脸信息,对主成分分析(PCA)进行改进,提出PLV算法,并将其应用于人脸识别系统进行远程监控。结果表明,在Olivetti研究实验室人脸数据库中,PLV的准确率相对稳定,最高为98%,最低为94%。在Yale测试中,该算法的准确率比PCA算法提高了12%;在Georgia Institute of Technology (GT)的数据库中,PLV算法需要0.2-0.3秒的时间范围,具有较高的运算效率。在所选的远程监控人脸数据库中,该方法的准确率稳定在90%以上,最高达到98%,表明该方法可以有效提高人脸识别的准确率,为远程监控系统的进一步优化提供了参考技术手段。
{"title":"Face recognition of remote monitoring under the Ipv6 protocol technology of Internet of Things architecture","authors":"Bo Fu","doi":"10.1515/jisys-2022-0283","DOIUrl":"https://doi.org/10.1515/jisys-2022-0283","url":null,"abstract":"Abstract With the advent of the Internet of Things (IoT) era, the application of intelligent devices in the network is becoming more and more extensive, and the monitoring technology is gradually developing towards the direction of intelligence and digitization. As a hot topic in the field of computer vision, face recognition faces problems such as low level of intelligence and long processing time. Therefore, under the technical support of the IoTs, the research uses internet protocol cameras to collect face information, improves the principal component analysis (PCA), poses a PLV algorithm, and then applies it to the face recognition system for remote monitoring. The outcomes demonstrate that in the Olivetti Research Laboratory face database, the accuracy of PLV is relatively stable, and the highest and lowest are 98 and 94%, respectively. In Yale testing, the accuracy of this algorithm is 12% higher than that of PCA algorithm; In the database of Georgia Institute of Technology (GT), the PLV algorithm requires a time range of 0.2–0.3 seconds and has high operational efficiency. In the selected remote monitoring face database, the accuracy of the method is stable at more than 90%, with the highest being 98%, indicating that it can effectively improve the accuracy of face recognition and provide a reference technical means for further optimization of the remote monitoring system.","PeriodicalId":46139,"journal":{"name":"Journal of Intelligent Systems","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134882970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recognition of English speech – using a deep learning algorithm 英语语音识别-使用深度学习算法
IF 3 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2023-01-01 DOI: 10.1515/jisys-2022-0236
Shuyan Wang
Abstract The accurate recognition of speech is beneficial to the fields of machine translation and intelligent human–computer interaction. After briefly introducing speech recognition algorithms, this study proposed to recognize speech with a recurrent neural network (RNN) and adopted the connectionist temporal classification (CTC) algorithm to align input speech sequences and output text sequences forcibly. Simulation experiments compared the RNN-CTC algorithm with the Gaussian mixture model–hidden Markov model and convolutional neural network-CTC algorithms. The results demonstrated that the more training samples the speech recognition algorithm had, the higher the recognition accuracy of the trained algorithm was, but the training time consumption increased gradually; the more samples a trained speech recognition algorithm had to test, the lower the recognition accuracy and the longer the testing time. The proposed RNN-CTC speech recognition algorithm always had the highest accuracy and the lowest training and testing time among the three algorithms when the number of training and testing samples was the same.
语音的准确识别有利于机器翻译和智能人机交互领域的发展。在简要介绍语音识别算法的基础上,本研究提出利用递归神经网络(RNN)识别语音,并采用连接时间分类(CTC)算法对输入语音序列和输出文本序列进行强制对齐。仿真实验将RNN-CTC算法与高斯混合模型-隐马尔可夫模型和卷积神经网络ctc算法进行了比较。结果表明:语音识别算法的训练样本越多,训练算法的识别准确率越高,但训练耗时逐渐增加;训练好的语音识别算法需要测试的样本越多,识别准确率越低,测试时间越长。本文提出的RNN-CTC语音识别算法在训练和测试样本数量相同的情况下,准确率最高,训练和测试时间最短。
{"title":"Recognition of English speech – using a deep learning algorithm","authors":"Shuyan Wang","doi":"10.1515/jisys-2022-0236","DOIUrl":"https://doi.org/10.1515/jisys-2022-0236","url":null,"abstract":"Abstract The accurate recognition of speech is beneficial to the fields of machine translation and intelligent human–computer interaction. After briefly introducing speech recognition algorithms, this study proposed to recognize speech with a recurrent neural network (RNN) and adopted the connectionist temporal classification (CTC) algorithm to align input speech sequences and output text sequences forcibly. Simulation experiments compared the RNN-CTC algorithm with the Gaussian mixture model–hidden Markov model and convolutional neural network-CTC algorithms. The results demonstrated that the more training samples the speech recognition algorithm had, the higher the recognition accuracy of the trained algorithm was, but the training time consumption increased gradually; the more samples a trained speech recognition algorithm had to test, the lower the recognition accuracy and the longer the testing time. The proposed RNN-CTC speech recognition algorithm always had the highest accuracy and the lowest training and testing time among the three algorithms when the number of training and testing samples was the same.","PeriodicalId":46139,"journal":{"name":"Journal of Intelligent Systems","volume":"8 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90637695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Robot indoor navigation point cloud map generation algorithm based on visual sensing 基于视觉感知的机器人室内导航点云图生成算法
IF 3 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2023-01-01 DOI: 10.1515/jisys-2022-0258
Qin Zhang, Xiushan Liu
Abstract At present, low-cost Red Green Blue Depth (RGB-D) sensors are mainly used in indoor robot environment perception, but the depth information obtained by RGB-D cameras has problems such as poor accuracy and high noise, and the generated 3D color point cloud map has low accuracy. In order to solve these problems, this article proposes a vision sensor-based point cloud map generation algorithm for robot indoor navigation. The aim is to obtain a more accurate point cloud map through visual SLAM and Kalman filtering visual-inertial navigation attitude fusion algorithm. The results show that in the positioning speed test data of the fusion algorithm in this study, the average time-consuming of camera tracking is 23.4 ms, which can meet the processing speed requirement of 42 frames per second. The yaw angle error of the fusion algorithm is the smallest, and the ATE test values of the algorithm are smaller than those of the Inertial measurement unit and Simultaneous-Localization-and-Mapping algorithms. This research algorithm can make the mapping process more stable and robust. It can use visual sensors to make more accurate route planning, and this algorithm improves the indoor positioning accuracy of the robot. In addition, the research algorithm can also obtain a dense point cloud map in real time, which provides a more comprehensive idea for the research of robot indoor navigation point cloud map generation.
目前,低成本的红绿蓝深度(RGB-D)传感器主要用于室内机器人环境感知,但RGB-D相机获取的深度信息存在精度差、噪声高等问题,生成的三维彩色点云图精度低。为了解决这些问题,本文提出了一种基于视觉传感器的机器人室内导航点云图生成算法。目的是通过视觉SLAM和卡尔曼滤波视觉惯性导航姿态融合算法获得更精确的点云图。结果表明,在本研究融合算法的定位速度测试数据中,摄像机跟踪的平均耗时为23.4 ms,可以满足42帧/秒的处理速度要求。融合算法的偏航角误差最小,ATE测试值小于惯性测量单元和同步定位映射算法。该研究算法可以使映射过程更加稳定和鲁棒。该算法可以利用视觉传感器进行更精确的路径规划,提高了机器人的室内定位精度。此外,研究算法还可以实时获得密集的点云图,为机器人室内导航点云图生成的研究提供了更全面的思路。
{"title":"Robot indoor navigation point cloud map generation algorithm based on visual sensing","authors":"Qin Zhang, Xiushan Liu","doi":"10.1515/jisys-2022-0258","DOIUrl":"https://doi.org/10.1515/jisys-2022-0258","url":null,"abstract":"Abstract At present, low-cost Red Green Blue Depth (RGB-D) sensors are mainly used in indoor robot environment perception, but the depth information obtained by RGB-D cameras has problems such as poor accuracy and high noise, and the generated 3D color point cloud map has low accuracy. In order to solve these problems, this article proposes a vision sensor-based point cloud map generation algorithm for robot indoor navigation. The aim is to obtain a more accurate point cloud map through visual SLAM and Kalman filtering visual-inertial navigation attitude fusion algorithm. The results show that in the positioning speed test data of the fusion algorithm in this study, the average time-consuming of camera tracking is 23.4 ms, which can meet the processing speed requirement of 42 frames per second. The yaw angle error of the fusion algorithm is the smallest, and the ATE test values of the algorithm are smaller than those of the Inertial measurement unit and Simultaneous-Localization-and-Mapping algorithms. This research algorithm can make the mapping process more stable and robust. It can use visual sensors to make more accurate route planning, and this algorithm improves the indoor positioning accuracy of the robot. In addition, the research algorithm can also obtain a dense point cloud map in real time, which provides a more comprehensive idea for the research of robot indoor navigation point cloud map generation.","PeriodicalId":46139,"journal":{"name":"Journal of Intelligent Systems","volume":"72 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86257607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Deep learning models for multilabel ECG abnormalities classification: A comparative study using TPE optimization 多标签ECG异常分类的深度学习模型:使用TPE优化的比较研究
IF 3 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2023-01-01 DOI: 10.1515/jisys-2023-0002
A. A. Rawi, Murtada K. Elbashir, Awadallah M. Ahmed
Abstract The problem addressed in this study is the limitations of previous works that considered electrocardiogram (ECG) classification as a multiclass problem, despite many abnormalities being diagnosed simultaneously in real life, making it a multilabel classification problem. The aim of the study is to test the effectiveness of deep learning (DL)-based methods (Inception, MobileNet, LeNet, AlexNet, VGG16, and ResNet50) using three large 12-lead ECG datasets to overcome this limitation. The define-by-run technique is used to build the most efficient DL model using the tree-structured Parzen estimator (TPE) algorithm. Results show that the proposed methods achieve high accuracy and precision in classifying ECG abnormalities for large datasets, with the best results being 97.89% accuracy and 90.83% precision for the Ningbo dataset, classifying 42 classes for the Inception model; 96.53% accuracy and 85.67% precision for the PTB-XL dataset, classifying 24 classes for the Alex net model; and 95.02% accuracy and 70.71% precision for the Georgia dataset, classifying 23 classes for the Alex net model. The best results achieved for the optimum model that was proposed by the define-by-run technique were 97.33% accuracy and 97.71% precision for the Ningbo dataset, classifying 42 classes; 96.60% accuracy and 83.66% precision for the PTB-XL dataset, classifying 24 classes; and 94.32% accuracy and 66.97% precision for the Georgia dataset, classifying 23 classes. The proposed DL-based methods using the TPE algorithm provide accurate results for multilabel classification of ECG abnormalities, improving the diagnostic accuracy of heart conditions.
本研究解决的问题是以往工作的局限性,即认为心电图(ECG)分类是一个多类别问题,尽管在现实生活中同时诊断出许多异常,使其成为一个多标签分类问题。本研究的目的是使用三个大型12导联ECG数据集来测试基于深度学习(DL)的方法(Inception, MobileNet, LeNet, AlexNet, VGG16和ResNet50)的有效性,以克服这一限制。使用树结构Parzen估计器(TPE)算法建立最有效的深度学习模型。结果表明,本文提出的方法对大型数据集的心电异常分类具有较高的准确度和精密度,其中宁波数据集的准确率为97.89%,精密度为90.83%,Inception模型共分类了42类;PTB-XL数据集的准确率为96.53%,精度为85.67%,Alex net模型分类了24个类别;对Georgia数据集的准确率为95.02%,精度为70.71%,对Alex net模型进行了23个类别的分类。采用逐行定义技术构建的最优模型在宁波数据集上的准确率分别为97.33%和97.71%,共分类42个类别;PTB-XL数据集准确率为96.60%,精密度为83.66%,共分类24类;格鲁吉亚数据集的准确率为94.32%,准确率为66.97%,共分类了23个类别。本文提出的基于dl的方法采用TPE算法,为ECG异常的多标签分类提供了准确的结果,提高了心脏疾病的诊断准确性。
{"title":"Deep learning models for multilabel ECG abnormalities classification: A comparative study using TPE optimization","authors":"A. A. Rawi, Murtada K. Elbashir, Awadallah M. Ahmed","doi":"10.1515/jisys-2023-0002","DOIUrl":"https://doi.org/10.1515/jisys-2023-0002","url":null,"abstract":"Abstract The problem addressed in this study is the limitations of previous works that considered electrocardiogram (ECG) classification as a multiclass problem, despite many abnormalities being diagnosed simultaneously in real life, making it a multilabel classification problem. The aim of the study is to test the effectiveness of deep learning (DL)-based methods (Inception, MobileNet, LeNet, AlexNet, VGG16, and ResNet50) using three large 12-lead ECG datasets to overcome this limitation. The define-by-run technique is used to build the most efficient DL model using the tree-structured Parzen estimator (TPE) algorithm. Results show that the proposed methods achieve high accuracy and precision in classifying ECG abnormalities for large datasets, with the best results being 97.89% accuracy and 90.83% precision for the Ningbo dataset, classifying 42 classes for the Inception model; 96.53% accuracy and 85.67% precision for the PTB-XL dataset, classifying 24 classes for the Alex net model; and 95.02% accuracy and 70.71% precision for the Georgia dataset, classifying 23 classes for the Alex net model. The best results achieved for the optimum model that was proposed by the define-by-run technique were 97.33% accuracy and 97.71% precision for the Ningbo dataset, classifying 42 classes; 96.60% accuracy and 83.66% precision for the PTB-XL dataset, classifying 24 classes; and 94.32% accuracy and 66.97% precision for the Georgia dataset, classifying 23 classes. The proposed DL-based methods using the TPE algorithm provide accurate results for multilabel classification of ECG abnormalities, improving the diagnostic accuracy of heart conditions.","PeriodicalId":46139,"journal":{"name":"Journal of Intelligent Systems","volume":"101 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80459212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Broadcast speech recognition and control system based on Internet of Things sensors for smart cities 基于物联网传感器的智慧城市广播语音识别与控制系统
Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2023-01-01 DOI: 10.1515/jisys-2023-0067
Min Qin, Ravi Kumar, Mohammad Shabaz, Sanjay Agal, Pavitar Parkash Singh, Anooja Ammini
Abstract With the wide popularization of Internet of Things (IoT) technology, the design and implementation of intelligent speech equipment have attracted more and more researchers’ attention. Speech recognition is one of the core technologies to control intelligent mechanical equipment. An industrial IoT sensor-based broadcast speech recognition and control system is presented to address the issue of integrating a broadcast speech recognition and control system with an IoT sensor for smart cities. In this work, a design approach for creating an intelligent voice control system for the Robot operating system (ROS) is provided. The speech recognition control program for the ROS is created using the Baidu intelligent voice software development kit, and the experiment is run on a particular robot platform. ROS makes use of communication modules to implement network connections between various system modules, mostly via topic-based asynchronous data transmission. A point-to-point network structure serves as the communication channel for the many operations that make up the ROS. The hardware component is mostly made up of the main controller’s motor driving module, a power module, a WiFi module, a Bluetooth module, a laser ranging module, etc. According to the experimental findings, the control system can identify the gathered sound signals, translate them into control instructions, and then direct the robot platform to carry out the necessary actions in accordance with the control instructions. Over 95% of speech is recognized. The control system has a high recognition rate and is simple to use, which is what most industrial controls require. It has significant implications for the advancement of control technology and may significantly increase production and life efficiency.
随着物联网(IoT)技术的广泛普及,智能语音设备的设计与实现越来越受到研究者的关注。语音识别是智能机械设备控制的核心技术之一。提出了一种基于工业物联网传感器的广播语音识别和控制系统,以解决智能城市广播语音识别和控制系统与物联网传感器的集成问题。在这项工作中,提供了一种为机器人操作系统(ROS)创建智能语音控制系统的设计方法。利用百度智能语音软件开发工具包编写了ROS的语音识别控制程序,并在特定的机器人平台上进行了实验。ROS利用通信模块实现系统各模块之间的网络连接,主要是通过基于主题的异步数据传输。点对点网络结构充当构成ROS的许多操作的通信通道。硬件部分主要由主控制器的电机驱动模块、电源模块、WiFi模块、蓝牙模块、激光测距模块等组成。根据实验结果,控制系统可以识别采集到的声音信号,将其转化为控制指令,然后指挥机器人平台按照控制指令进行必要的动作。超过95%的语音被识别。该控制系统识别率高,使用简单,是大多数工业控制所要求的。它对控制技术的进步具有重要意义,可以显著提高生产和生活效率。
{"title":"Broadcast speech recognition and control system based on Internet of Things sensors for smart cities","authors":"Min Qin, Ravi Kumar, Mohammad Shabaz, Sanjay Agal, Pavitar Parkash Singh, Anooja Ammini","doi":"10.1515/jisys-2023-0067","DOIUrl":"https://doi.org/10.1515/jisys-2023-0067","url":null,"abstract":"Abstract With the wide popularization of Internet of Things (IoT) technology, the design and implementation of intelligent speech equipment have attracted more and more researchers’ attention. Speech recognition is one of the core technologies to control intelligent mechanical equipment. An industrial IoT sensor-based broadcast speech recognition and control system is presented to address the issue of integrating a broadcast speech recognition and control system with an IoT sensor for smart cities. In this work, a design approach for creating an intelligent voice control system for the Robot operating system (ROS) is provided. The speech recognition control program for the ROS is created using the Baidu intelligent voice software development kit, and the experiment is run on a particular robot platform. ROS makes use of communication modules to implement network connections between various system modules, mostly via topic-based asynchronous data transmission. A point-to-point network structure serves as the communication channel for the many operations that make up the ROS. The hardware component is mostly made up of the main controller’s motor driving module, a power module, a WiFi module, a Bluetooth module, a laser ranging module, etc. According to the experimental findings, the control system can identify the gathered sound signals, translate them into control instructions, and then direct the robot platform to carry out the necessary actions in accordance with the control instructions. Over 95% of speech is recognized. The control system has a high recognition rate and is simple to use, which is what most industrial controls require. It has significant implications for the advancement of control technology and may significantly increase production and life efficiency.","PeriodicalId":46139,"journal":{"name":"Journal of Intelligent Systems","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135261082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intelligent medical IoT health monitoring system based on VR and wearable devices 基于VR和可穿戴设备的智能医疗物联网健康监测系统
Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2023-01-01 DOI: 10.1515/jisys-2022-0291
Yufei Wang, Xiaofeng An, Weiwei Xu
Abstract In order to improve the shortcomings of the traditional monitoring equipment that is difficult to measure the daily physical parameters of the elderly and improve the accuracy of parameter measurement, this article designs wearable devices through the Internet of Things technology and virtual reality technology. With this device, four daily physical parameters of the elderly, such as exercise heart rate, blood pressure, plantar health, and sleep function, are measured. The feasibility of the measurement method and equipment is verified by experiments. The experimental results showed that the accuracy of the measurement method based on the reflective photoplethysmography signal was high, with the mean and difference values of the subjects’ heart rate basically lying around 0 BPM and in good agreement between the estimated heart rate and the reference value. In the blood pressure measurements, the correlation coefficient between the P r s {P}_{rs} estimate and the reference value was 0.81. The estimation accuracy of the device used in the article was high, with the highest correlation coefficient of 0.96 ± 0.02 for subjects’ heart rate at rest, and its estimation error rate was 0.02 ± 0.01. The P n t h {P}_{{n}th} value for subject B8 exceeded the threshold of 0.5 before subject B21, and subject B8 had more severe symptoms, which was consistent with the actual situation. The wearable device was able to identify the subject’s eye features and provide appropriate videos to help subjects with poor sleep quality to fall asleep. The article provides a method and device that facilitates healthcare professionals to make real-time enquiries and receive user health advice.
摘要:为了改善传统监测设备难以测量老年人日常身体参数的缺点,提高参数测量的准确性,本文通过物联网技术和虚拟现实技术设计可穿戴设备。通过该装置,可以测量老年人的运动心率、血压、足底健康、睡眠功能等4项日常身体参数。实验验证了测量方法和设备的可行性。实验结果表明,基于反射光脉搏波信号的测量方法精度较高,被试心率均值和差值基本在0 BPM左右,估计值与参考值吻合较好。在血压测量中,P rs {P}_{rs}估计值与参考值的相关系数为0.81。本文所用装置的估计精度较高,与被试静息心率的相关系数最高为0.96±0.02,估计错误率为0.02±0.01。受试者B8的P nt h {P}_{{n}th}值在受试者B21之前超过了0.5的阈值,且受试者B8的症状更为严重,这与实际情况相符。该可穿戴设备能够识别受试者的眼部特征,并提供合适的视频,帮助睡眠质量较差的受试者入睡。本文提供了一种方法和设备,方便医疗保健专业人员进行实时查询和接收用户健康建议。
{"title":"Intelligent medical IoT health monitoring system based on VR and wearable devices","authors":"Yufei Wang, Xiaofeng An, Weiwei Xu","doi":"10.1515/jisys-2022-0291","DOIUrl":"https://doi.org/10.1515/jisys-2022-0291","url":null,"abstract":"Abstract In order to improve the shortcomings of the traditional monitoring equipment that is difficult to measure the daily physical parameters of the elderly and improve the accuracy of parameter measurement, this article designs wearable devices through the Internet of Things technology and virtual reality technology. With this device, four daily physical parameters of the elderly, such as exercise heart rate, blood pressure, plantar health, and sleep function, are measured. The feasibility of the measurement method and equipment is verified by experiments. The experimental results showed that the accuracy of the measurement method based on the reflective photoplethysmography signal was high, with the mean and difference values of the subjects’ heart rate basically lying around 0 BPM and in good agreement between the estimated heart rate and the reference value. In the blood pressure measurements, the correlation coefficient between the <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"> <m:msub> <m:mrow> <m:mi>P</m:mi> </m:mrow> <m:mrow> <m:mo>r</m:mo> <m:mo>s</m:mo> </m:mrow> </m:msub> </m:math> {P}_{rs} estimate and the reference value was 0.81. The estimation accuracy of the device used in the article was high, with the highest correlation coefficient of 0.96 ± 0.02 for subjects’ heart rate at rest, and its estimation error rate was 0.02 ± 0.01. The <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"> <m:msub> <m:mrow> <m:mi>P</m:mi> </m:mrow> <m:mrow> <m:mi mathvariant=\"italic\">n</m:mi> <m:mi>t</m:mi> <m:mi>h</m:mi> </m:mrow> </m:msub> </m:math> {P}_{{n}th} value for subject B8 exceeded the threshold of 0.5 before subject B21, and subject B8 had more severe symptoms, which was consistent with the actual situation. The wearable device was able to identify the subject’s eye features and provide appropriate videos to help subjects with poor sleep quality to fall asleep. The article provides a method and device that facilitates healthcare professionals to make real-time enquiries and receive user health advice.","PeriodicalId":46139,"journal":{"name":"Journal of Intelligent Systems","volume":"210 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135952787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Development of a digital employee rating evaluation system (DERES) based on machine learning algorithms and 360-degree method 基于机器学习算法和360度方法的数字化员工评价系统(DERES)的开发
Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2023-01-01 DOI: 10.1515/jisys-2023-0008
Gulnar Balakayeva, Mukhit Zhanuzakov, Gaukhar Kalmenova
Abstract Increasing the efficiency of an enterprise largely depends on the productivity of its employees, which must be properly assessed and the correct assessment of the contribution of each employee is important. In this regard, this article is devoted to a study conducted by the authors on the development of a digital employee rating system (DERES). The study was conducted on the basis of machine learning technologies and modern assessment methods that will allow companies to evaluate the performance of their departments, analyze the competencies of the employees and predict the rating of employees in the future. The authors developed a 360-degree employee rating model and a rating prediction model using regression machine learning algorithms. The article also analyzed the results obtained using the employee evaluation model, which showed that the performance of the tested employees is reduced due to remote work. Using DERES, a rating analysis of a real business company was carried out with recommendations for improving the efficiency of employees. An analysis of the forecasting results obtained using the rating prediction model developed by the authors showed that personal development and relationship are key parameters in predicting the future rating of employees. In addition, the authors provide a detailed description of the developed DERES information system, main components, and architecture.
企业效率的提高在很大程度上取决于企业员工的生产力,必须对员工的生产力进行正确的评估,正确评估每个员工的贡献是很重要的。在这方面,本文致力于作者对数字员工评级系统(DERES)的开发进行的研究。该研究是在机器学习技术和现代评估方法的基础上进行的,这些方法将使公司能够评估其部门的绩效,分析员工的能力并预测未来员工的评级。作者使用回归机器学习算法开发了360度员工评级模型和评级预测模型。本文还对使用员工评价模型得到的结果进行了分析,结果表明被测试员工的绩效由于远程工作而降低。使用DERES,对一家真实商业公司进行评级分析,并提出提高员工效率的建议。运用所建立的评价预测模型对预测结果进行分析,发现个人发展和人际关系是预测员工未来评价的关键参数。此外,作者还对开发的DERES信息系统、主要组件和体系结构进行了详细的描述。
{"title":"Development of a digital employee rating evaluation system (DERES) based on machine learning algorithms and 360-degree method","authors":"Gulnar Balakayeva, Mukhit Zhanuzakov, Gaukhar Kalmenova","doi":"10.1515/jisys-2023-0008","DOIUrl":"https://doi.org/10.1515/jisys-2023-0008","url":null,"abstract":"Abstract Increasing the efficiency of an enterprise largely depends on the productivity of its employees, which must be properly assessed and the correct assessment of the contribution of each employee is important. In this regard, this article is devoted to a study conducted by the authors on the development of a digital employee rating system (DERES). The study was conducted on the basis of machine learning technologies and modern assessment methods that will allow companies to evaluate the performance of their departments, analyze the competencies of the employees and predict the rating of employees in the future. The authors developed a 360-degree employee rating model and a rating prediction model using regression machine learning algorithms. The article also analyzed the results obtained using the employee evaluation model, which showed that the performance of the tested employees is reduced due to remote work. Using DERES, a rating analysis of a real business company was carried out with recommendations for improving the efficiency of employees. An analysis of the forecasting results obtained using the rating prediction model developed by the authors showed that personal development and relationship are key parameters in predicting the future rating of employees. In addition, the authors provide a detailed description of the developed DERES information system, main components, and architecture.","PeriodicalId":46139,"journal":{"name":"Journal of Intelligent Systems","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135953974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancement of K-means clustering in big data based on equilibrium optimizer algorithm 基于均衡优化算法的大数据k -均值聚类增强
IF 3 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2023-01-01 DOI: 10.1515/jisys-2022-0230
Sarah Ghanim Mahmood Al-kababchee, Z. Algamal, O. Qasim
Abstract Data mining’s primary clustering method has several uses, including gene analysis. A set of unlabeled data is divided into clusters using data features in a clustering study, which is an unsupervised learning problem. Data in a cluster are more comparable to one another than to those in other groups. However, the number of clusters has a direct impact on how well the K-means algorithm performs. In order to find the best solutions for these real-world optimization issues, it is necessary to use techniques that properly explore the search spaces. In this research, an enhancement of K-means clustering is proposed by applying an equilibrium optimization approach. The suggested approach adjusts the number of clusters while simultaneously choosing the best attributes to find the optimal answer. The findings establish the usefulness of the suggested method in comparison to existing algorithms in terms of intra-cluster distances and Rand index based on five datasets. Through the results shown and a comparison of the proposed method with the rest of the traditional methods, it was found that the proposal is better in terms of the internal dimension of the elements within the same cluster, as well as the Rand index. In conclusion, the suggested technique can be successfully employed for data clustering and can offer significant support.
数据挖掘的主要聚类方法有多种用途,包括基因分析。在聚类研究中,利用数据特征将一组未标记的数据分成簇,这是一个无监督学习问题。一个集群中的数据彼此之间的可比性比其他组中的数据更强。然而,聚类的数量对K-means算法的性能有直接影响。为了找到这些现实世界优化问题的最佳解决方案,有必要使用适当探索搜索空间的技术。本文提出了一种基于均衡优化的K-means聚类算法。建议的方法在选择最佳属性的同时调整簇的数量以找到最优答案。研究结果表明,在基于五个数据集的簇内距离和Rand指数方面,与现有算法相比,所建议的方法是有用的。通过所示的结果以及与其他传统方法的比较,发现该方法在同一聚类内元素的内部维度以及Rand指数方面都更好。总之,建议的技术可以成功地用于数据聚类,并可以提供重要的支持。
{"title":"Enhancement of K-means clustering in big data based on equilibrium optimizer algorithm","authors":"Sarah Ghanim Mahmood Al-kababchee, Z. Algamal, O. Qasim","doi":"10.1515/jisys-2022-0230","DOIUrl":"https://doi.org/10.1515/jisys-2022-0230","url":null,"abstract":"Abstract Data mining’s primary clustering method has several uses, including gene analysis. A set of unlabeled data is divided into clusters using data features in a clustering study, which is an unsupervised learning problem. Data in a cluster are more comparable to one another than to those in other groups. However, the number of clusters has a direct impact on how well the K-means algorithm performs. In order to find the best solutions for these real-world optimization issues, it is necessary to use techniques that properly explore the search spaces. In this research, an enhancement of K-means clustering is proposed by applying an equilibrium optimization approach. The suggested approach adjusts the number of clusters while simultaneously choosing the best attributes to find the optimal answer. The findings establish the usefulness of the suggested method in comparison to existing algorithms in terms of intra-cluster distances and Rand index based on five datasets. Through the results shown and a comparison of the proposed method with the rest of the traditional methods, it was found that the proposal is better in terms of the internal dimension of the elements within the same cluster, as well as the Rand index. In conclusion, the suggested technique can be successfully employed for data clustering and can offer significant support.","PeriodicalId":46139,"journal":{"name":"Journal of Intelligent Systems","volume":"56 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89420203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
期刊
Journal of Intelligent Systems
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1