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The Relationships between Capabilities and Values of Big Data Analytics 大数据分析能力与价值的关系
Pub Date : 2020-09-17 DOI: 10.1145/3426020.3426052
Byeonghwa Park, M. Noh, Choong Kwon Lee
This study aims to investigate the effect of big data analytics capability on big data values and business performance from the organizations performing big data analytics, which is one of the leading technologies in the fourth industrial revolution. For this study, the values of big data include transactional, strategic, transformational, and informational values. We conducted a survey and analyzed data from 200 professionals in organizations who had the experience of performing big data analytics. Structural equation modeling is used to test the research hypotheses. The results suggest that big data analytics capability has positive relationships with values of big data analytics and business performance. Of the values of big data analytics, however, the informational value of big data does not affect business performance. The results of this research are expected to provide researchers and practitioners who are interested in big data with useful information.
本研究旨在探讨大数据分析能力对大数据价值和企业绩效的影响,大数据分析是第四次工业革命的领先技术之一。在本研究中,大数据的价值包括交易价值、战略价值、转型价值和信息价值。我们进行了一项调查,并分析了来自组织中200名具有大数据分析经验的专业人士的数据。采用结构方程模型对研究假设进行检验。结果表明,大数据分析能力与大数据分析价值和企业绩效呈正相关关系。然而,在大数据分析的价值中,大数据的信息价值并不影响业务绩效。本研究的结果有望为对大数据感兴趣的研究人员和实践者提供有用的信息。
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引用次数: 2
Single Image Dehazing Using End-to-End Deep-Dehaze Network 使用端到端深度去雾网络的单图像去雾
Pub Date : 2020-09-17 DOI: 10.1145/3426020.3426058
Masud An Nur Islam Fahim, H. Jung
Atmospheric haze limits the performance of the camera sensor, which results in capturing degraded hazy images. Removal of this haze from the observed images is a complicated task because of its ill-posed nature. This study offers the Deep-Dehaze network to retrieve the haze-free image. For the given input, the proposed architecture uses four feature extraction module to perform nonlinear feature extraction. We improvise the traditional Unet architecture and the residual network to design our architecture. We also introduced the L1 spatial-edge loss function, which enables our system to achieve better performance over the typical L1 and L2 loss function. Unlike other learning-based approaches, our network does not use any fusion connection for image dehazing. The experimental results show that our proposed Deep-Dehaze architecture surpasses previous state-of-the-art single image dehazing methods quantitatively and qualitatively. Our network achieves outstanding average PSNR score 24.5 on the RESIDE dataset.
大气雾霾限制了相机传感器的性能,导致捕捉到的模糊图像退化。从观测图像中去除这种雾霾是一项复杂的任务,因为它的病态性质。本研究提出了Deep-Dehaze网络来检索无雾图像。对于给定的输入,采用四个特征提取模块进行非线性特征提取。我们对传统的Unet体系结构和残余网络进行了即兴的设计。我们还介绍了L1空间边缘损失函数,它使我们的系统比典型的L1和L2损失函数获得更好的性能。与其他基于学习的方法不同,我们的网络不使用任何融合连接来进行图像去雾。实验结果表明,我们提出的深度去雾架构在定量和定性上都超越了以前最先进的单图像去雾方法。我们的网络在驻留数据集上实现了出色的平均PSNR得分24.5。
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引用次数: 10
IoT Powered Cancer Observation System. 物联网癌症观测系统。
Pub Date : 2020-09-17 DOI: 10.1145/3426020.3426111
O. Rehman, Zaroon Farrukh, A. Al-Busaidi, KyungJin Cha, Simon Park, Ibrahim M. H. Rahman
Cancer is a global challenge and the second leading cause of death worldwide as reported by the World Health Organization. With the current global pandemic caused by the novel coronavirus, cancer patients are identified as having increased risk of mortality. With the growing number of cancer patients every year, the need for a continuous and round the clock observation system has become quite imperative. An Internet of Things (IoT) based system for monitoring cancer patients has the potential to timely detect cancer related symptoms in its early stages, to continuously monitor cancer diagnosed patients and to monitor those that got cured for post-treatment measures. This paper proposes a multi-layered architecture of an IoT-based cancer observation system that can be utilized as a platform to remotely diagnose and monitor cancer patients. An implementation framework of the proposed system is also presented is this work, along with a prototype design of a Patient Side Unit (PSU) represented by a wearable wrist band. The proposed system has the potential to be applied as a solution for reducing expensive and exhausting hospital visits, while gaining similar quality of medical services when residing at home.
据世界卫生组织报道,癌症是一项全球性挑战,也是全球第二大死亡原因。随着新型冠状病毒引起的全球大流行,癌症患者被确定为死亡风险增加。随着每年癌症患者数量的增长,需要一个连续的、全天候的观察系统已经变得非常迫切。以物联网(IoT)为基础的癌症患者监测系统,有可能在早期及时发现癌症相关症状,对确诊的癌症患者进行持续监测,对治愈的癌症患者进行监测,以便采取后续治疗措施。本文提出了一种基于物联网的癌症观察系统的多层架构,可以作为远程诊断和监测癌症患者的平台。本文还提出了该系统的实现框架,以及由可穿戴腕带代表的病人侧单元(PSU)的原型设计。拟议的系统有可能作为一种解决办法加以应用,以减少昂贵和累人的医院就诊,同时在住家时获得类似的医疗服务质量。
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引用次数: 3
LoRa Mesh Network for Smart Metering in Rural Electrification 面向农村电气化智能计量的LoRa网状网络
Pub Date : 2020-09-17 DOI: 10.1145/3426020.3426112
A. Marahatta, Yaju Rajbhandari, A. Shrestha, Ajay Singh, A. Thapa, Seokjoo Shin
Digital smart meters hold many advantages over traditional analogue meters as the smart meters can be easily associated with the concept of smart grid. However, smart meters still face many challenges due to problems linked with communication mechanism such as low range, low data rate, high deployment and operating cost, and less reliability. To address such issues, smart metering can also be implemented with the deployment of a dedicated network formed with Low Power Wide Area Platform devices also known as LoRa devices. This paper discusses, how the LoRa technology can be implemented to solve the problems associated with smart metering especially considering rural energy system which uses microgrids. A simulation-based study has been done to analyse the applicability of LoRa technology in different architecture for smart metering purposes and also to identify a cost-effective and reliable way to implement smart metering, especially in rural microgrids.
与传统的模拟电表相比,数字智能电表具有许多优点,因为智能电表可以很容易地与智能电网的概念联系起来。然而,智能电表仍然面临着通信机制方面的问题,如距离小、数据速率低、部署和运行成本高、可靠性差等。为了解决这些问题,还可以通过部署由低功率广域平台设备(也称为LoRa设备)组成的专用网络来实现智能计量。本文讨论了如何实施LoRa技术来解决与智能计量相关的问题,特别是考虑到使用微电网的农村能源系统。一项基于仿真的研究分析了LoRa技术在不同架构中的智能计量目的的适用性,并确定了一种经济有效且可靠的方式来实施智能计量,特别是在农村微电网中。
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引用次数: 0
Study of Hand Motion Signal Detection and Frame Extraction Using Frequency Analysis by Electric Field Sensors✱ 基于频率分析的电场传感器手部运动信号检测与帧提取研究
Pub Date : 2020-09-17 DOI: 10.1145/3426020.3426177
Sun-Yong Jung, Young-Chul Kim
Using an electric field or an EPIC sensor that can measure contactless potential, we recorded electric field dwarfism generated by the human body, and conducted a study to detect hand movements and extract gesture frames using the recorded signals. Signals from the EPIC sensors include a large amount of power line noise (PLN) indoors. Using the fact that the PLN is shielded by human access to the sensor, a signal from the hand has been detected using the change. PLN consists mainly of a composite signal of 60 Hz frequency and 60 Hz harmonics indoors, of which motion is detected using a 120 Hz signal that is easy to identify the increase or decrease of the signal and has a low zero base of the signal. To measure a 120 Hz signal, use FFT to measure a spectral-separated frequency signal. The 120 Hz signal obtained in this way is believed to have been detected as it passed the threshold. If an action is detected, determine the frame based on the threshold. The final motion detection rate was about 90% and the frame accuracy was about 85%, and very fine signals were difficult to detect. This type of motion detection using EPIC sensors is the first study attempted domestically and internationally, and the results show room for development into a promising technology in motion detection applications.
我们使用电场或EPIC传感器测量非接触电位,记录由人体产生的电场侏儒症,并利用记录的信号进行手部运动检测和提取手势帧的研究。来自EPIC传感器的信号包括室内大量的电源线噪声(PLN)。利用人类对传感器的访问屏蔽了PLN这一事实,使用变化检测到来自手的信号。PLN主要由60hz频率和60hz室内谐波的复合信号组成,其中运动检测采用120hz信号,易于识别信号的增减,信号的零基较低。要测量120hz信号,使用FFT来测量频谱分离频率信号。以这种方式获得的120hz信号被认为是在通过阈值时被检测到的。如果检测到动作,则根据阈值确定帧。最终的运动检测率约为90%,帧精度约为85%,非常精细的信号难以检测到。这种使用EPIC传感器的运动检测是国内和国际上首次尝试的研究,其结果表明,在运动检测应用中,这种技术有很大的发展空间。
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引用次数: 0
Complex information processing networks of EEG oscillations during voluntary movements 自主运动时脑电图振荡的复杂信息处理网络
Pub Date : 2020-09-17 DOI: 10.1145/3426020.3426167
Han-Gue Jo, L. Wagels, M. Votinov, A. Puszta
A complex physical pattern of connections has been widely observed in many real-world systems, including social, biological, and technological networks. This ubiquitous characteristic of complex systems has also been observed in functional/structural networks of the human brain. In this study, we examined complex network topology of EEG-based functional connections while subjects performed voluntary movements. The complex system of the brain networks revealed an ideal balance between efficient information processing of local specialization and global integration, as reflected by small-world index across a wide range of EEG frequency-bands, i.e., theta, alpha, beta, and gamma oscillations. Further, directing subjective experience towards inner processes to voluntary movement altered the information processing of the brain networks wired by gamma oscillations. Brain functional networks demonstrate distinct small-world property depending on the strategy initiating voluntary movements while preserving the ubiquitous network characteristics found in many complex systems. Estimation of this alteration could prove helpful for understanding the brain mechanism of voluntary movements as well as for the evaluation of the efficiency of brain network.
在许多现实世界的系统中,包括社会、生物和技术网络,广泛观察到复杂的物理连接模式。在人类大脑的功能/结构网络中也观察到复杂系统的这种普遍特征。在这项研究中,我们检查了受试者在进行自主运动时基于脑电图的功能连接的复杂网络拓扑。大脑网络的复杂系统揭示了局部专业化和全球整合的高效信息处理之间的理想平衡,这反映在脑电图大范围频带(即θ、α、β和γ振荡)的小世界指数上。此外,将主观经验引导到内部过程到自愿运动改变了由伽马振荡连接的大脑网络的信息处理。脑功能网络表现出独特的小世界属性,这取决于发起自主运动的策略,同时保留了许多复杂系统中发现的无处不在的网络特征。对这种变化的估计有助于理解自主运动的大脑机制以及评估大脑网络的效率。
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引用次数: 0
Multi-Task with Variational Autoencoder for Lung Cancer Prognosis on Clinical Data 多任务变分自编码器对肺癌预后的临床数据分析
Pub Date : 2020-09-17 DOI: 10.1145/3426020.3426080
Thanh-Hung Vo, Gueesang Lee, Hyung-Jeong Yang, Sae-Ryung Kang, I. Oh, Soohyung Kim
Due to the increase of lung cancer in Korea, survival analysis for this kind of cancer gets emerging in recent years. Statistical and traditional machine learning methods usually used by medical doctors for this task. Which the success of deep learning in many tasks of computer vision, natural language processing, some studies starting to use DL for this task. Differ than many fields, data in medicine is difficult to collect and process, then the number of samples usually small and a little bit difficult to apply deep learning approach. In this study, we apply variational autoencoder together with the normal task of survival analysis and analysis the effect of it’s it on the target task. The results show that when combine the VAE with the target task, the network architecture less sensitive with the training size, and then could be trained with small number of sample. The limit of this study is using the internal dataset, then it is difficult to compare to the others.
近年来,随着国内肺癌患者的增加,对肺癌患者的生存分析逐渐兴起。统计和传统的机器学习方法通常被医生用于这项任务。其中深度学习在计算机视觉、自然语言处理等许多任务上的成功,一些研究开始使用深度学习来完成这一任务。与许多领域不同的是,医学中的数据很难收集和处理,那么样本数量通常很小,很难应用深度学习方法。在本研究中,我们将变分自编码器与生存分析的正常任务结合使用,并分析其对目标任务的影响。结果表明,当VAE与目标任务结合使用时,网络结构对训练量的敏感性较低,可以用少量样本进行训练。本研究的局限性在于使用了内部数据集,因此很难与其他研究进行比较。
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引用次数: 0
Comparison of Attention Module for Acoustic Scene Classification 声学场景分类的注意模块比较
Pub Date : 2020-09-17 DOI: 10.1145/3426020.3426100
Nisan Aryal, Sang-Woong Lee
Deep neural networks have seen new milestones after the introduction of attention. Attention is defined as a mechanism in deep learning in which more priority or focus is given to a certain part of the data. A different variation of attention has been introduced in recent years. In this paper, we have used Convolutional Block Attention Module and Squeeze and Excitation Networks attention module in the Resnet-18 model for acoustic scene classification. Acoustic scene classification is a variation of sound classification in which we identify the place where the sound is recorded. Our study shows that squeeze and Excitation Networks, followed by Convolutional Block Attention Module, gives 2.97% more than the baseline Resnet-18 network.
深度神经网络在引入注意力之后迎来了新的里程碑。注意力被定义为深度学习中的一种机制,在这种机制中,对数据的某一部分给予更多的优先级或关注。近年来出现了一种不同的注意力变化。在本文中,我们在Resnet-18模型中使用了卷积块注意模块和压缩和激励网络注意模块进行声场景分类。声音场景分类是声音分类的一种变体,我们识别声音录制的地方。我们的研究表明,挤压和激励网络,其次是卷积块注意力模块,比基线Resnet-18网络高出2.97%。
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引用次数: 1
Smartphone-based Indoor Navigation System Using Particle Filter and Map-Constraints 基于粒子滤波和地图约束的智能手机室内导航系统
Pub Date : 2020-09-17 DOI: 10.1145/3426020.3426126
Suhardi Azliy Junoh, S. Subedi, Jae-Young Pyun
A modern smartphone is equipped with various types of sensors and modules such as accelerometer, magnetometer, gyroscope, Wi-Fi, Bluetooth low energy (BLE), etc. These sensors and modules can be utilized for a better localization estimation. The Particle filter (PF) has been widely accepted as a multisensory data fusion tool in indoor navigation. In this paper, we deployed PF by restricting the particle propagation with map-constraints and updating the weight of particle with the BLE beacon proximity. The proposed technique is experimentally accomplished on a smartphone with the real field deployment of BLE beacons. The results demonstrated that our system achieved a promising mean accuracy of 1.87 m in the testbed. Further, we represent the advantage of the map-constraints based PF over a typical PF for multisensory data fusion.
现代智能手机配备了各种类型的传感器和模块,如加速度计、磁力计、陀螺仪、Wi-Fi、低功耗蓝牙(BLE)等。这些传感器和模块可以用于更好的定位估计。粒子滤波作为一种多感官数据融合工具在室内导航中得到了广泛的应用。在本文中,我们通过使用映射约束来限制粒子的传播,并使用BLE信标的接近度来更新粒子的权值来部署PF。所提出的技术在智能手机上进行了实验,并实际部署了BLE信标。实验结果表明,该系统达到了1.87 m的平均精度。此外,我们代表了基于地图约束的PF在多感官数据融合方面优于典型PF的优势。
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引用次数: 4
Genetic Optimizing Method for Real-time Monte Carlo Tree Search Problem 实时蒙特卡罗树搜索问题的遗传优化方法
Pub Date : 2020-09-17 DOI: 10.1145/3426020.3426030
Man-Je Kim, Jong-Hyun Lee, C. Ahn
Monte Carlo Tree Search is one of the best algorithms for solving board game problems. However, Monte Carlo Tree Search is not suitable for real-time game problem because the problems have uncertainty of opponent’s action and a lot of simulation when determining behavior. We propose a Genetic Optimizing Method to solving the problems encountered when applying Monte Carlo Tree Search to real-time games. Our method helps solve the dilemma of Real-time Monte Carlo Tree Search between simulation and the number of branching factors by utilizing genetic algorithms. Finally, we applied our method to the Real-time Fighting Game to verify its performance.
蒙特卡罗树搜索是解决棋盘游戏问题的最佳算法之一。然而,蒙特卡洛树搜索算法并不适用于实时博弈问题,因为实时博弈问题具有对手行动的不确定性,并且在确定行为时需要进行大量的模拟。我们提出了一种遗传优化方法来解决将蒙特卡罗树搜索应用于实时游戏时遇到的问题。该方法利用遗传算法解决了实时蒙特卡罗树搜索在仿真和分支因子数量之间的两难问题。最后,我们将该方法应用于实时格斗游戏,以验证其性能。
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引用次数: 1
期刊
The 9th International Conference on Smart Media and Applications
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