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Research on Accurate Information Pushing Based on Human Network 被引量:1
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作者 Meijie Yang Yu Wang Xiaorong Hou 《Social Networking》 2017年第2期181-196,共16页
Based on the social network analysis methods and human network, this paper randomly selected 44 students (31 males and 13 females) as the research objects, and it used the UCINET software to analyze the friendship bet... Based on the social network analysis methods and human network, this paper randomly selected 44 students (31 males and 13 females) as the research objects, and it used the UCINET software to analyze the friendship between them of which 43 used WeChat and 44 used QQ, and it also used the tool Netdraw to visualize the network sociogram. By mining the four aspects of density, accessibility, centrality, block model, the results demonstrated that QQ social network and WeChat social network existed the phenomenon of small world, leaders and subgroups, and the key nodes of QQ human network were more than WeChat network. Through using the key nodes, it can push the precise and efficient information and improve the accuracy of information transmission and impact among network members. 展开更多
关键词 Social network Analysis human network Small World SUBGROUP Key Nodes: PRECISE and Efficient INFORMATION INFORMATION Transmission
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Starants: A New Model for Human Networks
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作者 Marcia Pinheiro 《Applied Mathematics》 2016年第3期267-271,共5页
In this paper, we will explain the relevance of the starant graphs, graphs created by us in the year of 2002. They were basically circulant graphs with a star graph that connects to all the vertices of the circulant g... In this paper, we will explain the relevance of the starant graphs, graphs created by us in the year of 2002. They were basically circulant graphs with a star graph that connects to all the vertices of the circulant graphs from inside of them, but they did not exist as a separate object of study in the year of 2002, as for all we knew. We now know that they can be used to model even social networking interactions, and they do that job better than any other graph we could be trying to use there. With the development of our mathematical tools, lots of conclusions will be made much more believable and therefore will become much more likely to get support from the relevant industries when attached to new queries. 展开更多
关键词 CIRCULANT Starant STAR GRAPH network human MODELLING MODELLING Comellas Watts
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Expert recommendation system based on analyzing expertise and networks of human resources in National Science & Technology Information Service 被引量:2
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作者 YANG Myung-seok KANG Nam-kyu +3 位作者 KIM Yun-jeong KIM Jae-soo CHOI Kwang-nam KIM Young-kuk 《Journal of Central South University》 SCIE EI CAS 2013年第8期2212-2218,共7页
This work aims to implement expert and collaborative group recommendation services through an analysis of expertise and network relations NTIS. First of all, expertise database has been constructed by extracting keywo... This work aims to implement expert and collaborative group recommendation services through an analysis of expertise and network relations NTIS. First of all, expertise database has been constructed by extracting keywords after indexing national R&D information in Korea (human resources, project and outcome) and applying expertise calculation algorithm. In consideration of the characteristics of national R&D information, weight values have been selected. Then, expertise points were calculated by applying weighted values. In addition, joint research and collaborative relations were implemented in a knowledge map format through network analysis using national R&D information. 展开更多
关键词 human networks network analysis NTIS R&D information
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Identification of TSS in the Human Genome Based on a RBF Neural Network 被引量:1
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作者 Zhi-Hong Peng Jie Chen Li-Jun Cao Ting-Ting Gao 《International Journal of Automation and computing》 EI 2006年第1期35-40,共6页
The identification of functional motifs in a DNA sequence is fundamentally a statistical pattern recognition problem. This paper introduces a new algorithm for the recognition of functional transcription start sites ... The identification of functional motifs in a DNA sequence is fundamentally a statistical pattern recognition problem. This paper introduces a new algorithm for the recognition of functional transcription start sites (TSSs) in human genome sequences, in which a RBF neural network is adopted, and an improved heuristic method for a 5-tuple feature viable construction, is proposed and implemented in two RBFPromoter and ImpRBFPromoter packages developed in Visual C++ 6.0. The algorithm is evaluated on several different test sequence sets. Compared with several other promoter recognition programs, this algorithm is proved to be more flexible, with stronger learning ability and higher accuracy. 展开更多
关键词 Promoter recognition human genome transcription start site RBF neural network.
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RETRACTED:<i>Realization of Virtual Human Face Based on Deep Convolutional Generative Adversarial Networks</i>
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作者 Zijiang Zhu Xiaoguang Deng +1 位作者 Junshan Li Eryou Wei 《Journal of Signal and Information Processing》 2018年第3期217-228,共12页
Short Retraction Notice The authors claim that this paper needs modifications. This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retracti... Short Retraction Notice The authors claim that this paper needs modifications. This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction Guidelines. The aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused. Editor guiding this retraction: Prof. Baozong Yuan(EiC of JSIP) The full retraction notice in PDF is preceding the original paper, which is marked "RETRACTED". 展开更多
关键词 DEEP Convolution GENERATIVE Adversarial networkS DEEP Learning Vir-tual human FACE
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Human Detection by Robotic Urban Search and Rescue Using Image Processing and Neural Networks
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作者 Fahed Awad Rufaida Shamroukh 《International Journal of Intelligence Science》 2014年第2期39-53,共15页
This paper proposes a new approach for detecting human survivors in destructed environments using an autonomous robot. The proposed system uses a passive infrared sensor to detect the existence of living humans and a ... This paper proposes a new approach for detecting human survivors in destructed environments using an autonomous robot. The proposed system uses a passive infrared sensor to detect the existence of living humans and a low-cost camera to acquire snapshots of the scene. The images are fed into a feed-forward neural network, trained to detect the existence of a human body or part of it within an obstructed environment. This approach requires a relatively small number of images to be acquired and processed during the rescue operation, which considerably reduces the cost of image processing, data transmission, and power consumption. The results of the conducted experiments demonstrated that this system has the potential to achieve high performance in detecting living humans in obstructed environments relatively quickly and cost-effectively. The detection accuracy ranged between 79% and 91% depending on a number of factors such as the body position, the light intensity, and the relative color matching between the body and the surrounding environment. 展开更多
关键词 URBAN SEARCH and RESCUE human-Robot Interaction AUTONOMOUS Systems Intelligent Interface NEURAL networks
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An EEGA-Based Bayesian Belief Network Model for Recognition of Human Activity in Smart Home
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作者 曾献辉 陈晓婷 叶承阳 《Journal of Donghua University(English Edition)》 EI CAS 2012年第6期497-500,共4页
With the emerging of sensor networks, research on sensor-based activity recognition has attracted much attention. Many existing methods cannot well deal with the cases that contain hundreds of sensors and their recogn... With the emerging of sensor networks, research on sensor-based activity recognition has attracted much attention. Many existing methods cannot well deal with the cases that contain hundreds of sensors and their recognition accuracy is requisite to be further improved. A novel framework for recognizing human activities in smart home was presented. First, small, easy-to-install, and low-cost state change sensors were adopted for recording state change or use of the objects. Then the Bayesian belief network (BBN) was applied to conducting activity recognition by modeling statistical dependencies between sensor data and human activity. An edge-encode genetic algorithm (EEGA) approach was proposed to resolve the difficulties in structure learning of the BBN model under a high dimension space and large data set. Finally, some experiments were made using one publicly available dataset. The experimental results show that the EEGA algorithm is effective and efficient in learning the BBN structure and outperforms the conventional approaches. By conducting human activity recognition based on the testing samples, the BBN is effective to conduct human activity recognition and outperforms the naive Bayesian network (NBN) and multiclass naive Bayes classifier (MNBC). 展开更多
关键词 human activity recognition edge-encoded genetic algorithm(EEGA) Bayesian belief network (BBN) smart home
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数字人文视域下基于多层网络+GIS的历史文献知识发现研究——以西北解放主要战役为例
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作者 滕玥 吕相舟 +1 位作者 徐士伦 邓君 《现代情报》 北大核心 2026年第1期187-196,共10页
[目的/意义]多维度的数据信息能够为历史文献的知识发现提供更丰富的研究视角与知识服务。现有研究中的传统网络分析受限于数据维度的制约,亟须能够支撑多数据维度、多关联类型的网络分析方法为历史文献知识发现赋能。[方法/过程]本文... [目的/意义]多维度的数据信息能够为历史文献的知识发现提供更丰富的研究视角与知识服务。现有研究中的传统网络分析受限于数据维度的制约,亟须能够支撑多数据维度、多关联类型的网络分析方法为历史文献知识发现赋能。[方法/过程]本文提出了以PLM-NERE-MMNs架构为核心的历史文献知识发现模型,并对经典的多层网络进行改进。基于所提出的模型,根据西北解放主要战役的历史报纸文献进行实证研究。[结果/结论]研究结果表明,改进后的多层网络能够有效地表达历史文献中的多维度信息,有助于发现文献范围之外的潜在知识。本研究提出的以PLM-NERE-MMNs架构为核心的历史文献知识发现模型,为数字人文视域下的历史文献知识发现研究提供了新的方法与视角。 展开更多
关键词 数字人文 多层网络 GIS 历史文献 知识发现
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基于FAST网络的毫米波雷达端到端手势识别
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作者 郑好 李浩然 +3 位作者 彭国梁 郑志鹏 胡芬 郇战 《现代电子技术》 北大核心 2026年第1期8-14,共7页
针对目前的毫米波雷达手势识别方法存在预处理步骤复杂、效率差和精度低等不足,文中提出FAST网络模型。首先,该模型使用复值线性层构建傅里叶网络,以离散傅里叶变换值对傅里叶网络进行权重初始化,雷达原始数据经过傅里叶网络后得到距离... 针对目前的毫米波雷达手势识别方法存在预处理步骤复杂、效率差和精度低等不足,文中提出FAST网络模型。首先,该模型使用复值线性层构建傅里叶网络,以离散傅里叶变换值对傅里叶网络进行权重初始化,雷达原始数据经过傅里叶网络后得到距离-多普勒特征;其次,引入ECA模块并计算帧通道注意力权重,提升对手势特征的提取能力;最后,采用Swin Transformer提高计算效率与识别精度,并扩大感受野,利用损失函数进行反向传播并对模型的参数进行迭代更新。实验结果表明,提出的基于FAST的毫米波雷达端到端手势识别算法在提升计算效率的同时,达到了96.46%的准确率,与其他主流算法相比具有先进性,为毫米波雷达手势识别在智能家居、移动设备上的应用提供了更为精简且高效的解决方案。 展开更多
关键词 毫米波雷达 手势识别 人机交互 深度学习 神经网络 离散傅里叶变换
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Digital Watermarking Algorithm Based on Wavelet Transform and Neural Network 被引量:4
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作者 WANG Zhenfei ZHAI Guangqun WANG Nengchao 《Wuhan University Journal of Natural Sciences》 CAS 2006年第6期1667-1670,共4页
An effective blind digital watermarking algorithm based on neural networks in the wavelet domain is presented. Firstly, the host image is decomposed through wavelet transform. The significant coefficients of wavelet a... An effective blind digital watermarking algorithm based on neural networks in the wavelet domain is presented. Firstly, the host image is decomposed through wavelet transform. The significant coefficients of wavelet are selected according to the human visual system (HVS) characteristics. Watermark bits are added to them. And then effectively cooperates neural networks to learn the characteristics of the embedded watermark related to them. Because of the learning and adaptive capabilities of neural networks, the trained neural networks almost exactly recover the watermark from the watermarked image. Experimental results and comparisons with other techniques prove the effectiveness of the new algorithm. 展开更多
关键词 digital watermarking neural networks wavelet transform human visual system
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提示语支架促进学习者批判性思维发展的实证研究
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作者 贺玮 张星语 +1 位作者 胡小勇 廖艺东 《现代教育技术》 2026年第1期74-83,共10页
批判性思维是数智时代人才所具备的高阶能力,提示语支架作为撬动“人-机”智慧问答的杠杆,有望以引导高质量提问来促进学习者的批判性思维发展。然而,当前鲜有研究探讨提示语支架影响学习者批判性思维发展的动态变化。基于此,文章结合... 批判性思维是数智时代人才所具备的高阶能力,提示语支架作为撬动“人-机”智慧问答的杠杆,有望以引导高质量提问来促进学习者的批判性思维发展。然而,当前鲜有研究探讨提示语支架影响学习者批判性思维发展的动态变化。基于此,文章结合认知网络分析,面向厦门市X校两个高一班级的学生展开实验,探究了人机对话中提示语支架对学习者批判性思维发展的影响。研究发现:学生批判性思维呈低阶向高阶的连续发展趋势;有无提示语支架支持的学生批判性思维发展各异;提示语支架能够促进学生的批判性思维向更高层级发展。在此基础上,文章建议设计不同认知水平的提示语支架、加强提示语工程建设和构建“苏格拉底式”人机协同学习新范式,以期为数智时代开展批判性思维培养提供参考。 展开更多
关键词 人机对话 生成式人工智能 提示语支架 批判性思维 认知网络分析
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Assessing the impacts of human activities and climate variations on grassland productivity by partial least squares structural equation modeling(PLS-SEM) 被引量:8
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作者 SHA Zongyao XIE Yichun +3 位作者 TAN Xicheng BAI Yongfei LI Jonathan LIU Xuefeng 《Journal of Arid Land》 SCIE CSCD 2017年第4期473-488,共16页
The cause-effect associations between geographical phenomena are an important focus in ecological research. Recent studies in structural equation modeling(SEM) demonstrated the potential for analyzing such associati... The cause-effect associations between geographical phenomena are an important focus in ecological research. Recent studies in structural equation modeling(SEM) demonstrated the potential for analyzing such associations. We applied the variance-based partial least squares SEM(PLS-SEM) and geographically-weighted regression(GWR) modeling to assess the human-climate impact on grassland productivity represented by above-ground biomass(AGB). The human and climate factors and their interaction were taken to explain the AGB variance by a PLS-SEM developed for the grassland ecosystem in Inner Mongolia, China. Results indicated that 65.5% of the AGB variance could be explained by the human and climate factors and their interaction. The case study showed that the human and climate factors imposed a significant and negative impact on the AGB and that their interaction alleviated to some extent the threat from the intensified human-climate pressure. The alleviation may be attributable to vegetation adaptation to high human-climate stresses, to human adaptation to climate conditions or/and to recent vegetation restoration programs in the highly degraded areas. Furthermore, the AGB response to the human and climate factors modeled by GWR exhibited significant spatial variations. This study demonstrated that the combination of PLS-SEM and GWR model is feasible to investigate the cause-effect relation in socio-ecological systems. 展开更多
关键词 spatial modeling human-natural interaction grazing urbanization road network
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Shared Gene Regulation during Human Somatic Cell Reprogramming 被引量:3
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作者 Xiang Wang Xuesong Chen +3 位作者 Huijun Zhang Wenyi Qin Yan Xue Fanyi Zeng 《Journal of Genetics and Genomics》 SCIE CAS CSCD 2012年第12期613-623,共11页
Human induced pluripotent stem (iPS) cells have the ability to differentiate into all somatic cells and to maintain unlimited self- renewal. Therefore, they have great potential in both basic research and clinical t... Human induced pluripotent stem (iPS) cells have the ability to differentiate into all somatic cells and to maintain unlimited self- renewal. Therefore, they have great potential in both basic research and clinical therapy for many diseases. To identify potentially universal mechanisms of human somatic cell reprogramming, we studied gene expression changes in three types of cells undergoing reprogramming. The set of 570 genes commonly regulated during induction of iPS cells includes known embryonic stem (ES) cell markers and pluripotency related genes. We also identified novel genes and biological categories which may be related to somatic cell reprogramming. For example, some of the down-regulated genes are predicted targets of the pluripotency microRNA cluster miR302/367, and the proteins from these putative target genes interact with the stem cell pluripotency factor POU5F1 according to our network analysis. Our results identified candidate gene sets to guide research on the mechanisms operating during somatic cell reprogramming. 展开更多
关键词 Somatic cell reprogramming human iPS cells Gene expression profile network analysis
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基于时空交互网络的人体行为检测方法研究 被引量:1
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作者 田青 张浩然 +2 位作者 楚柏青 张正 豆飞 《计算机应用与软件》 北大核心 2025年第4期156-165,共10页
针对现有的人体行为检测方法中,存在特征融合能力较差、时序信息相关性不强和行为边界不明确等问题,提出一种基于时空交互网络的人体行为检测方法。重新设计了双流特征提取模块,在空间流和时空流两个网络之间添加连接层;分别在空间流和... 针对现有的人体行为检测方法中,存在特征融合能力较差、时序信息相关性不强和行为边界不明确等问题,提出一种基于时空交互网络的人体行为检测方法。重新设计了双流特征提取模块,在空间流和时空流两个网络之间添加连接层;分别在空间流和时间流网络中引入改进的空间变换网络和视觉注意力模型;设计基于像素筛选器的特征融合模块,用于重点区域时序信息相关性的计算和两类不同维度特征的聚合;对网络的损失函数进行了优化。在AVA数据集上的实验结果表明该方法在检测精度、速度以及泛化能力上具有优越性。 展开更多
关键词 时空交互网络 人体行为检测 视觉注意力 特征融合 损失函数
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Terrorism and Human Smuggling in the U.S. Southwestern Border
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作者 Simon Pedro Izcara Palacios Karla Lorena Andrade Rubio 《Psychology Research》 2018年第8期388-396,共9页
关键词 恐怖主义 走私 美国 西南 墨西哥 方法论 外国 论文
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多尺度和多层级特征融合的人体姿态估计 被引量:2
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作者 王燕妮 胡敏 +2 位作者 韩世鹏 陈艺瑄 吕昊 《计算机工程与应用》 北大核心 2025年第6期199-209,共11页
人体姿态估计的精度提升通常依赖于特征融合,但是现有特征融合策略往往忽略了尺度特征和层级特征之间的交互作用。为了充分利用不同特征之间的互补性,提出了一种新特征融合策略用以提升人体姿态估计精度,即多尺度和多层级特征融合网络(m... 人体姿态估计的精度提升通常依赖于特征融合,但是现有特征融合策略往往忽略了尺度特征和层级特征之间的交互作用。为了充分利用不同特征之间的互补性,提出了一种新特征融合策略用以提升人体姿态估计精度,即多尺度和多层级特征融合网络(multi-scale and multi-level network,MSLNet)。采用高分辨率网络(high-resolution network,HRNet)作为主干,通过跨尺度信息交互,实现不同分辨率特征图之间的信息交换,获取同时包含细粒度和粗粒度的姿态特征;引入期望最大化注意力-加权双向特征金字塔网络(expectation maximization attention-bidirectional feature pyramid network,EMA-BiFPN),实现多尺度特征融合后的多层级特征聚合,从局部到全局捕捉人体姿态的细节和关联信息;设计由残差结构组成的关键点检测头,完成输出特征的最终融合并提升人体关键点检测准确率。实验结果表明,MSLNet在COCO和MPII数据集上分别取得了75.8%和91.1%的准确率,实现了最优精度,充分验证了MSLNet能够融合尺度和层级之间的互补特征,进而提升人体姿态估计精度。 展开更多
关键词 高分辨率网络(HRNet) 人体姿态估计 期望最大化注意力 双向特征金字塔网络 特征融合
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Modeling and System Identification of Human Body as Communication Channel
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作者 Rashmi Baweja Pankaj Shukla 《通讯和计算机(中英文版)》 2011年第10期903-908,共6页
关键词 人体系统 通信信道 识别 自适应滤波器 建模 FIR滤波器 传输介质 数据通信
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基于改进GAN的人机交互手势行为识别方法 被引量:2
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作者 张富强 白筠妍 穆慧 《郑州大学学报(工学版)》 北大核心 2025年第2期43-50,共8页
为改善现有手势识别算法需要大量训练数据的现状,针对识别准确率不高、识别过程复杂等问题,基于生成式对抗网络(GAN)和变分自编码器,引入标签信息,提出一种基于改进GAN模型的人机交互手势行为识别方法。首先,在编码器和解码器中分别添... 为改善现有手势识别算法需要大量训练数据的现状,针对识别准确率不高、识别过程复杂等问题,基于生成式对抗网络(GAN)和变分自编码器,引入标签信息,提出一种基于改进GAN模型的人机交互手势行为识别方法。首先,在编码器和解码器中分别添加改进InceptionV2和InceptionV2-trans结构增强模型的特征还原能力;其次,在各组成网络中进行条件批量归一化(CBN)处理改善过拟合,以Mish激活函数代替ReLU函数提升网络性能;最后,通过实验证明该方法能够以较少的样本获得100%的分类准确率,且收敛时间短,验证了该方法的可靠性。 展开更多
关键词 人机交互 生成对抗网络 变分自编码器 手势识别 条件批量归一化
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A WBAN for Human Movement Kinematics and ECG Measurements
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作者 Ahmed Baraka Ahmed Shokry +4 位作者 Ihab Omar Saged Kamel Tarek Fouad Mohamad Abou El-Nasr Heba Shaban 《E-Health Telecommunication Systems and Networks》 2012年第2期19-25,共7页
Biomedical applications of body area networks (BANs) are evolving, where taking periodic medical readings of patients via means wireless technologies at home or in the office will aid physicians to periodically superv... Biomedical applications of body area networks (BANs) are evolving, where taking periodic medical readings of patients via means wireless technologies at home or in the office will aid physicians to periodically supervise the patient’s medical status without having to see the patient. Thus, one important objective of BANs is to provide the doctor with the medical readings that can be collected electronically without being in close proximity to the patient. This is done through the measurement of the patient’s physiological signals via means of wearable sensors. This paper investigates wireless BAN cooperation via actual measurements of human movement kinematics and electrocardiogram (ECG), which are believed to provide patients with easy healthcare for continuous health-monitoring. The collected information will be processed using specially designed software, which in turn will enable the patient to send a full medical chart to the physician’s electronic device. In this way, physicians will have the ability to monitor their patients more efficiently. 展开更多
关键词 Body Area networks (BANs) ELECTROCARDIOGRAM (ECG) human GAIT and MOVEMENT KINEMATICS
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On the trails of markers and proxies:the socio-cognitive technologies of human movement,knowledge assemblage,and their relevance to the etiology of nasopharyngeal carcinoma 被引量:3
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作者 David Turnbull 《Chinese Journal of Cancer》 SCIE CAS CSCD 北大核心 2011年第2期85-95,共11页
Bacteria,pigs,rats,pots,plants,words,bones,stones,earrings,diseases,and genetic indicators of all varieties are markers and proxies for the complexity of interweaving trails and stories integral to understanding human... Bacteria,pigs,rats,pots,plants,words,bones,stones,earrings,diseases,and genetic indicators of all varieties are markers and proxies for the complexity of interweaving trails and stories integral to understanding human movement and knowledge assemblage in Southeast Asia and around the world.Understanding human movement and knowledge assemblage is central to comprehending the genetic basis of disease,especially of a cancer like nasopharyngeal carcinoma.The problem is that the markers and trails,taken in isolation,do not all tell the same story.Human movement and knowledge assemblage are in constant interaction in an adaptive process of co-production with genes,terrain,climate,sea level changes,kinship relations,diet,materials,food and transport technologies,social and cognitive technologies,and knowledge strategies and transmission.Nasopharyngeal carcinoma is the outcome of an adaptive process involving physical,social,and genetic components. 展开更多
关键词 知识传播 人体运动 遗传标记 运输技术 鼻咽癌 社会 代理 创新
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