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2019 International Conference on Artificial Intelligence in Information and Communication (ICAIIC)最新文献

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The Properties of mode prediction using mean root error for regularization 用均方根误差进行正则化的模态预测的性质
Ghudae Sim, Hyungbin Yun, Junhee Seok
While it is popular, estimating empirical distribution from observed data using MSE (Mean Squared Error) is often inefficient because it focuses on expectation. To address this problem, here we invest a new type of error term, named MRE (Mean Root Error). Different from MSE, MRE can predict the local mode point rather than the expectation. From numerical studies, we show that MRE models shows more robust and accurate prediction performance, which will be useful for complicated data such as finance data.
虽然它很流行,但使用MSE(均方误差)从观察到的数据估计经验分布通常效率低下,因为它关注的是期望。为了解决这个问题,这里我们引入了一种新的错误项,称为MRE (Mean Root error)。与MSE不同的是,MRE可以预测局部模态点而不是期望。数值研究表明,MRE模型具有更强的鲁棒性和更准确的预测性能,对于复杂的金融数据具有一定的应用价值。
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引用次数: 1
A Machine-Learning-Based Channel Assignment Algorithm for IoT 基于机器学习的物联网信道分配算法
Jing Ma, T. Nagatsuma, Song-Ju Kim, M. Hasegawa
Multi-channel technique benefits IoT network by support parallel transmission and reduce interference. However, the extra overhead posed by the multi-channel usage coordination dramatically challenges the resource constrained IoT devices. In this paper, a machine-learning-based channel assignment algorithm utilizing Tug-Of-War (TOW) dynamics is proposed to cognitively select channels for communication in massive IoT. Furthermore, the proposed TOW-dynamics-based channel assignment algorithm has simple learning procedure which only needs to receive Acknowledge frame for learning procedure, meanwhile, only needs minimal memory and computation capability, i.e., addition and subtraction procedure. Thus, the proposed TOW-dynamics-based algorithm is possible to run on resource constrained IoT devices. We prototype the proposed algorithm on extremely resource constrained Single-board Computer, which is called cognitive IoT device hereafter. Moreover, the evaluation experiments that densely deployed cognitive IoT devices in the frequently changed radio environment are conducted. The evaluation results show that cognitive IoT device quickly make decision to selects channel when the real environment frequently changed, meanwhile keep fairness among IoT devices.
多通道技术支持并行传输,减少干扰,有利于物联网网络的发展。然而,多通道使用协调带来的额外开销极大地挑战了资源受限的物联网设备。本文提出了一种基于机器学习的信道分配算法,利用拔河(Tug-Of-War, TOW)动态来认知地选择大规模物联网中的通信信道。此外,本文提出的基于tow动态的信道分配算法学习过程简单,只需要接收确认帧即可进行学习过程,同时只需要最小的内存和计算能力,即加减过程。因此,所提出的基于tow动态的算法可以在资源受限的物联网设备上运行。我们在资源极度受限的单板计算机(以下称为认知物联网设备)上对该算法进行了原型化。进行了密集部署的认知物联网设备在频繁变化的无线电环境下的评估实验。评估结果表明,在现实环境频繁变化的情况下,认知物联网设备能够快速做出信道选择决策,同时保持物联网设备之间的公平性。
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引用次数: 11
Stock Prices Prediction using the Title of Newspaper Articles with Korean Natural Language Processing 利用韩国语自然语言处理的报纸标题预测股价
Hyungbin Yun, Ghudae Sim, Junhee Seok
Non-quantitative data have a significant impact on the financial market as well as quantitative data. In this paper, we propose CNN model of stock price prediction using Korean natural language processing. In the case of Korean natural language processing research was not actively performed compared to English language. We converted Korean sentences into nouns and vectorized them using skip-grams to extract the characteristics of the words. Then, the vectorized word sentence was used as input data of the CNN model to predict the stock price after 5 days of trading day. Most models have more than 50% prediction accuracy for stock price up and down. The highest accuracy of the model was about 53%. Since the result is not considerable but meaningful, it shows the possibility of developing the stock price prediction model through Korean natural language processing in the future.
非量化数据对金融市场的影响与量化数据一样重要。本文提出了一种基于韩语自然语言处理的CNN股票价格预测模型。与英语相比,韩语的自然语言处理研究并不积极。我们将韩语句子转换成名词,并使用skip-grams对其进行矢量化以提取单词的特征。然后,将矢量化的词句作为CNN模型的输入数据,预测交易日后5天的股价。大多数模型对股价涨跌的预测精度都在50%以上。该模型的最高准确率约为53%。虽然结果不是很可观,但很有意义,因此表明了今后利用韩国语自然语言处理开发股价预测模型的可能性。
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引用次数: 17
Simulation on Delay of Several Random Access Schemes 几种随机接入方案的时延仿真
Hoesang Choi, H. Moon
To reduce power consumption in random access, channel-adaptive random access was suggested. With channel-adaptive random access, a remote station transmits a random access packet only when channel gain is greater than a predetermined threshold. Even thought a random access event is triggered, if channel gain is less than the threshold, the remote station waits to transmit the packet until the channel gain becomes greater than the threshold. Therefore, there is an additional delay compared to conventional random access. Previous researches showed that channel-adaptive random access has a trade-off between power consumption and delay. However, retransmission was not considered in the previous researches. Therefore, in this paper, random access delay is compared between conventional and channel-adaptive random access considering retransmissions.
为了降低随机接入的功耗,提出了信道自适应随机接入方案。在信道自适应随机访问中,只有当信道增益大于预定阈值时,远程站才发送随机访问数据包。即使触发了随机访问事件,如果信道增益小于阈值,远程站也会等待传输数据包,直到信道增益大于阈值。因此,与传统的随机访问相比,存在额外的延迟。以往的研究表明,信道自适应随机接入在功耗和时延之间进行了权衡。然而,在以往的研究中并没有考虑到重传。因此,本文比较了考虑重传的传统随机接入和信道自适应随机接入的时延。
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引用次数: 0
Deep learning based decomposition of brain networks 基于深度学习的脑网络分解
Pilsub Lee, Myungwon Choi, Daegyeom Kim, Suji Lee, Hyun-Ghang Jeong, C. E. Han
A brain network is the essence of the intelligence where it consists of nodes that are anatomically defined brain regions, and edges that connect a pair of brain regions. The diffusion-weighted magnetic resonance (MR) images and the advances in computer-aided tractography algorithms let us know strong association between human brain networks and cognitive functions. Brain regions dedicated to a certain specific cognitive function were spatially clustered and efficiently connected each other; it is called local functional segregation. However, it is not well known that such a local segregation is associated with a certain sub-network which may act as a building block of the brain network. In this work, using a graph auto-encoder, we extracted building blocks of brain networks and investigate whether they are affected by a neurological disease, Alzheimer’s disease. We found that the brain network of each person is linear summation of the learned building blocks. Also, the activation levels of these building blocks vary in the normal controls and patients with Alzheimer’s disease, showing that network deterioration in the disease group.
大脑网络是智能的本质,它由解剖学上定义的大脑区域节点和连接一对大脑区域的边缘组成。扩散加权磁共振(MR)图像和计算机辅助神经束成像算法的进步让我们知道人类大脑网络与认知功能之间的密切联系。大脑中负责特定认知功能的区域在空间上聚集并有效地相互连接;这被称为局部功能分离。然而,人们并不清楚这种局部隔离是否与某个可能作为大脑网络构建块的子网络有关。在这项工作中,我们使用图形自动编码器提取大脑网络的构建块,并研究它们是否受到神经系统疾病阿尔茨海默病的影响。我们发现,每个人的大脑网络都是所学知识的线性总和。此外,这些构建模块的激活水平在正常对照和阿尔茨海默病患者中有所不同,表明疾病组的网络恶化。
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引用次数: 2
Priority Adversarial Example in Evasion Attack on Multiple Deep Neural Networks 多深度神经网络逃避攻击的优先级对抗实例
Hyun Kwon, H. Yoon, D. Choi
Deep neural networks (DNNs) provide superior per-formance on machine learning tasks such as image recognition, speech recognition, pattern recognition, and intrusion detection. However, an adversarial example created by adding a little noise to the original data can lead to misclassification by the DNN, and the human eye cannot detect the difference from the original data. For example, if an attacker generates a modified left-turn road sign to be incorrectly categorized by a DNN, an autonomous vehicle with the DNN will incorrect classify the modified left-turn road sign as a right-turn sign, whereas a human will correctly classify the modified sign as a left-turn sign. Such an adversarial example is a serious threat to a DNN. Recently, a multi-target adversarial example was introduced that causes misclassification by several models within each target class using a single modified image. However, it has the vulnerability that as the number of target models increases, the overall attack success rate is reduced. Therefore, if there are several models that the attacker wishes to target, the attacker needs to control the attack success rate for each model by considering the attack priority for each model. In this paper, we propose a priority adversarial example that considers the attack priority for each model in cases targeting several models. The proposed method controls the attack success rate for each model by adjusting the weight of the attack function in the generation process, while maintaining minimum distortion. We used Tensorflow, a widely used machine learning library, and MNIST as the dataset. Experimental results show that the proposed method can control the attack success rate for each model by considering the attack priority of each model while maintaining minimum distortion (on average 3.95 and 2.45 in targeted and untargeted attacks, respectively).
深度神经网络(dnn)在图像识别、语音识别、模式识别和入侵检测等机器学习任务上提供了卓越的性能。然而,通过在原始数据中添加少量噪声创建的对抗性示例可能导致DNN的错误分类,并且人眼无法检测到与原始数据的差异。例如,如果攻击者生成了一个修改后的左转标志,并被DNN错误地分类,那么具有DNN的自动驾驶汽车将错误地将修改后的左转标志分类为右转标志,而人类将正确地将修改后的左转标志分类为左转标志。这样一个对抗性的例子对深度神经网络是一个严重的威胁。最近,介绍了一种多目标对抗示例,该示例使用单个修改后的图像在每个目标类别中引起多个模型的误分类。但其存在随着目标模型数量的增加,整体攻击成功率降低的漏洞。因此,如果攻击者希望攻击的模型有多个,那么攻击者需要通过考虑每个模型的攻击优先级来控制每个模型的攻击成功率。在本文中,我们提出了一个优先级对抗示例,该示例在针对多个模型的情况下考虑每个模型的攻击优先级。该方法通过在生成过程中调整攻击函数的权重来控制每个模型的攻击成功率,同时保持最小的失真。我们使用Tensorflow(一个广泛使用的机器学习库)和MNIST作为数据集。实验结果表明,该方法可以在保证最小失真的同时,综合考虑各模型的攻击优先级,控制各模型的攻击成功率(目标攻击和非目标攻击的平均失真率分别为3.95和2.45)。
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引用次数: 1
Estimation of Control Parameters in Neuromuscular Skeletal Systems Combined with CNNs and Parametric Identification 结合cnn和参数辨识的神经肌肉骨骼系统控制参数估计
M. Kikuchi
In this paper, we introduce a method to estimate the control parameters of the neuromuscular skeletal system by using convolution neural networks (CNNs) and parametric identification together. We selected a human standing attitude control system as an object and conducted measurement experiments with the output of barycenter fluctuation with visual instructions as input. Then, we created an image emphasizing the features of the result and carried out transfer learning with stochastic gradient descent method with CNNs using the AlexNet. Here, we classified the measurement time and the result for each subject into 16 classes. On the other hand, we created a mathematical model of the system and carried out a parametric identification of the control parameters of the neuromuscular skeletal system the standing attitude control system using the ARMAX algorithm. Next, using the feature extraction method, the CNN output, and the original parameter estimation method, the control parameters of the verification data estimated without using ARMAX from the CNN output and the control parameter information of the learning data. As the results, (1) the center of gravity fluctuation differs for each subject and each hour. (2) feature extraction works effectively. (3) It is possible to correlate data classified by CNNs and estimated values of control parameters. We showed these three results. Moreover, from the viewpoint of the system model, it suggested that the decision process of deep learning could be analyzed using the change of internal parameters in the system.
本文介绍了一种将卷积神经网络(cnn)与参数辨识相结合的神经肌肉骨骼系统控制参数估计方法。以人体站立姿态控制系统为对象,以重心波动为输出,以视觉指令为输入,进行了测量实验。然后,我们创建了一个强调结果特征的图像,并使用AlexNet与cnn进行了随机梯度下降法的迁移学习。在这里,我们将每个科目的测量时间和结果分为16类。另一方面,建立了系统的数学模型,利用ARMAX算法对神经肌肉骨骼系统和站立姿态控制系统的控制参数进行了参数辨识。接下来,使用特征提取方法、CNN输出和原始参数估计方法,在不使用ARMAX的情况下,从CNN输出和学习数据的控制参数信息中估计验证数据的控制参数。结果表明:(1)每个受试者、每个小时的重心波动是不同的。(2)特征提取效果好。(3)可以将cnn分类的数据与控制参数的估计值相关联。我们展示了这三个结果。此外,从系统模型的角度,提出可以利用系统内部参数的变化来分析深度学习的决策过程。
{"title":"Estimation of Control Parameters in Neuromuscular Skeletal Systems Combined with CNNs and Parametric Identification","authors":"M. Kikuchi","doi":"10.1109/ICAIIC.2019.8669022","DOIUrl":"https://doi.org/10.1109/ICAIIC.2019.8669022","url":null,"abstract":"In this paper, we introduce a method to estimate the control parameters of the neuromuscular skeletal system by using convolution neural networks (CNNs) and parametric identification together. We selected a human standing attitude control system as an object and conducted measurement experiments with the output of barycenter fluctuation with visual instructions as input. Then, we created an image emphasizing the features of the result and carried out transfer learning with stochastic gradient descent method with CNNs using the AlexNet. Here, we classified the measurement time and the result for each subject into 16 classes. On the other hand, we created a mathematical model of the system and carried out a parametric identification of the control parameters of the neuromuscular skeletal system the standing attitude control system using the ARMAX algorithm. Next, using the feature extraction method, the CNN output, and the original parameter estimation method, the control parameters of the verification data estimated without using ARMAX from the CNN output and the control parameter information of the learning data. As the results, (1) the center of gravity fluctuation differs for each subject and each hour. (2) feature extraction works effectively. (3) It is possible to correlate data classified by CNNs and estimated values of control parameters. We showed these three results. Moreover, from the viewpoint of the system model, it suggested that the decision process of deep learning could be analyzed using the change of internal parameters in the system.","PeriodicalId":273383,"journal":{"name":"2019 International Conference on Artificial Intelligence in Information and Communication (ICAIIC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115732248","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
Improving Learning time in Unsupervised Image-to-Image Translation 改进无监督图像到图像翻译的学习时间
Tae-Hong Min, Do-Yun Kim, Young-June Choi
Unsupervised image-to-image translation can map local textures between two domains, but typically fails when the domain requires big shape changes. It is difficult to learn how to make such big change using the basic convolution layer, and furthermore it takes much time to learn. For faster learning and high-quality image generation, we propose to use Cycle GAN that is combined with Resnet in a network that is connected with the residual block for upsampling to make big shape change and construct faster image-to-image translation.
无监督的图像到图像转换可以在两个域之间映射局部纹理,但当域需要大的形状变化时,通常会失败。学习如何使用基本卷积层进行如此大的更改是很困难的,而且需要花费很多时间来学习。为了更快的学习和高质量的图像生成,我们建议在与残差块连接的网络中使用与Resnet相结合的Cycle GAN进行上采样,以进行大的形状变化并构建更快的图像到图像的转换。
{"title":"Improving Learning time in Unsupervised Image-to-Image Translation","authors":"Tae-Hong Min, Do-Yun Kim, Young-June Choi","doi":"10.1109/ICAIIC.2019.8669076","DOIUrl":"https://doi.org/10.1109/ICAIIC.2019.8669076","url":null,"abstract":"Unsupervised image-to-image translation can map local textures between two domains, but typically fails when the domain requires big shape changes. It is difficult to learn how to make such big change using the basic convolution layer, and furthermore it takes much time to learn. For faster learning and high-quality image generation, we propose to use Cycle GAN that is combined with Resnet in a network that is connected with the residual block for upsampling to make big shape change and construct faster image-to-image translation.","PeriodicalId":273383,"journal":{"name":"2019 International Conference on Artificial Intelligence in Information and Communication (ICAIIC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122771380","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
Solution for Sampling Time Deviation in Decoding RoI-Signaling Waveform Using S2-PSK S2-PSK解码roi信号波形时采样时间偏差的解决方法
Hoan Nguyen, Minh Duc Thieu, Huy Nguyen, Tung Lam Pham, N. Le, Y. Jang
In this paper, we have introduced Optical Camera Communication, challenging and solution of RoI signal and S2-PSK modulation scheme. Nowadays, OCC has been established in many areas which also be used in vehicle communication. Although OCC has been the concern of a vehement research during the recent years, the technology is still in its juvenile and requires continuous efforts to overcome the current challenges, especially in outdoor applications, such as the vehicle communications.
本文介绍了光学相机通信、RoI信号的挑战和解决方案,以及S2-PSK调制方案。如今,OCC已经在许多领域建立起来,也应用于车载通信。尽管近年来OCC技术一直受到广泛关注,但该技术仍处于初级阶段,需要不断努力克服当前的挑战,特别是在户外应用中,如车辆通信。
{"title":"Solution for Sampling Time Deviation in Decoding RoI-Signaling Waveform Using S2-PSK","authors":"Hoan Nguyen, Minh Duc Thieu, Huy Nguyen, Tung Lam Pham, N. Le, Y. Jang","doi":"10.1109/ICAIIC.2019.8669062","DOIUrl":"https://doi.org/10.1109/ICAIIC.2019.8669062","url":null,"abstract":"In this paper, we have introduced Optical Camera Communication, challenging and solution of RoI signal and S2-PSK modulation scheme. Nowadays, OCC has been established in many areas which also be used in vehicle communication. Although OCC has been the concern of a vehement research during the recent years, the technology is still in its juvenile and requires continuous efforts to overcome the current challenges, especially in outdoor applications, such as the vehicle communications.","PeriodicalId":273383,"journal":{"name":"2019 International Conference on Artificial Intelligence in Information and Communication (ICAIIC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121935369","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
Fire Detection Using Video Images and Temporal Variations 利用视频图像和时间变化进行火灾探测
Gwangsun Kim, Junyeong Kim, Sunghwan Kim
Fire detection is very crucial to the security and important to preserve the properties of citizens. On fire detection, various features such as extracted information from video and others have been used. The combination of various features can improve the accuracy of fire detection. Usually video images are an important resource for this task, and prior knowledge about colors and variations of fires can be used. Recently, deep neural network has shown the best performance in many task in computer visions. Thus, the use of deep neural network in fire detection has risen, but there were little works to use the temporally summarized information from the prior knowledge. To construct the deep neural network architecture reflecting this information and validate its performances, we gathered video clips and proposed the deep neural network using the temporal information from video clips is proposed. Analysis of real data showed that the proposed method improve the accuracy significantly. To summarize the temporal information we use the standard deviation of G-filter values of images along the time. By using this information, the more compact architecture can be constructed.
火灾探测对安全至关重要,对保护市民的财产安全至关重要。在火灾探测方面,已经使用了各种功能,例如从视频中提取信息等。多种特征的结合可以提高火灾探测的准确性。通常视频图像是这项任务的重要资源,可以使用关于颜色和火灾变化的先验知识。近年来,深度神经网络在计算机视觉领域的许多任务中表现出了最好的性能。因此,深度神经网络在火灾探测中的应用有所增加,但利用先验知识中临时总结的信息的工作很少。为了构建反映这些信息的深度神经网络架构并验证其性能,我们收集了视频片段,并提出了利用视频片段中的时间信息构建深度神经网络的方法。实际数据分析表明,该方法显著提高了检测精度。为了总结时间信息,我们使用图像G-filter值随时间的标准差。通过使用这些信息,可以构建更紧凑的体系结构。
{"title":"Fire Detection Using Video Images and Temporal Variations","authors":"Gwangsun Kim, Junyeong Kim, Sunghwan Kim","doi":"10.1109/ICAIIC.2019.8669083","DOIUrl":"https://doi.org/10.1109/ICAIIC.2019.8669083","url":null,"abstract":"Fire detection is very crucial to the security and important to preserve the properties of citizens. On fire detection, various features such as extracted information from video and others have been used. The combination of various features can improve the accuracy of fire detection. Usually video images are an important resource for this task, and prior knowledge about colors and variations of fires can be used. Recently, deep neural network has shown the best performance in many task in computer visions. Thus, the use of deep neural network in fire detection has risen, but there were little works to use the temporally summarized information from the prior knowledge. To construct the deep neural network architecture reflecting this information and validate its performances, we gathered video clips and proposed the deep neural network using the temporal information from video clips is proposed. Analysis of real data showed that the proposed method improve the accuracy significantly. To summarize the temporal information we use the standard deviation of G-filter values of images along the time. By using this information, the more compact architecture can be constructed.","PeriodicalId":273383,"journal":{"name":"2019 International Conference on Artificial Intelligence in Information and Communication (ICAIIC)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117028081","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: 3
期刊
2019 International Conference on Artificial Intelligence in Information and Communication (ICAIIC)
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