首页 > 最新文献

2018 International Conference on Information and Communication Technology Convergence (ICTC)最新文献

英文 中文
Application of TCP Multi-Pathization Method with SDN by IoT Devices to Web Service 物联网设备基于SDN的TCP多路径方法在Web服务中的应用
Yuki Yoshida, Yoshihiro Ito
IoT (Internet of Things) that everything is connected to the Internet and communicates is beginning to spread, and network control is required to respond to the rapid increase in traffic volume by IoT. However, it is difficult to realize such control with only existing protocols, and it takes time and cost to reform the protocol. Therefore, reference [1] suggests using IoT devices as SDN equipment and proposes TCP multi-pathization method with SDN which selects paths based on packet length and traffic volume of each path.On the other hand, due to the upgraded performance of IoT devices, it is expected to use Web services even on IoT devices, and it is conceivable to apply the [1] method to Web services. However, reference [1] does not validate the effectiveness of using Web services. In this paper, we aim to investigate the applicability of [1] method to Web services, and measure and compare the HTTP throughput and the response time by experiment. Experimental results show that this method is suitable for using Web services.
万物互联互通的物联网(Internet of Things)开始普及,需要网络控制来应对物联网带来的流量的快速增长。然而,仅依靠现有协议很难实现这种控制,并且对协议进行改革需要时间和成本。因此文献[1]建议使用物联网设备作为SDN设备,并提出了TCP多路径化方法,通过SDN根据每条路径的数据包长度和流量选择路径。另一方面,由于物联网设备性能的提升,甚至在物联网设备上也有望使用Web服务,可以想象将[1]方法应用于Web服务。但是,参考文献[1]并没有验证使用Web服务的有效性。本文旨在研究[1]方法在Web服务中的适用性,并通过实验对HTTP吞吐量和响应时间进行测量和比较。实验结果表明,该方法适用于Web服务的使用。
{"title":"Application of TCP Multi-Pathization Method with SDN by IoT Devices to Web Service","authors":"Yuki Yoshida, Yoshihiro Ito","doi":"10.1109/ICTC.2018.8539508","DOIUrl":"https://doi.org/10.1109/ICTC.2018.8539508","url":null,"abstract":"IoT (Internet of Things) that everything is connected to the Internet and communicates is beginning to spread, and network control is required to respond to the rapid increase in traffic volume by IoT. However, it is difficult to realize such control with only existing protocols, and it takes time and cost to reform the protocol. Therefore, reference [1] suggests using IoT devices as SDN equipment and proposes TCP multi-pathization method with SDN which selects paths based on packet length and traffic volume of each path.On the other hand, due to the upgraded performance of IoT devices, it is expected to use Web services even on IoT devices, and it is conceivable to apply the [1] method to Web services. However, reference [1] does not validate the effectiveness of using Web services. In this paper, we aim to investigate the applicability of [1] method to Web services, and measure and compare the HTTP throughput and the response time by experiment. Experimental results show that this method is suitable for using Web services.","PeriodicalId":417962,"journal":{"name":"2018 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121368297","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
A Design and Implementaion of Carry Distance Prediction Model using Artificial Neural Network 基于人工神经网络的携带距离预测模型的设计与实现
J. Ko, Kyeongrok Kim, Jae-Hyun Kim
A golf shot pattern analyzer, which can derive a golf ball speed, a launch angle, and a spin, measures parameters using a high frequency radar or a high speed camera. But it is difficult to measure a carry distance of golf ball moving several tens of meters. Therefore, the carry distance of golf ball is calculated by various variables such as an initial velocity of golf ball, a launch angle, a spin rate, etc. In this paper, we calculate the carry distance of golf ball based on an Artificial Neural Network (ANN). The ANN model uses five dependent variables (club speed, attack angle, golf ball speed, launch angle, and spin rate) as input variables. A structure of the ANN model consists of one input layer, four hidden layers, and one output layer. Hidden nodes of the hidden layer are composed of 10, 20, 20, and 20 nodes, respectively. A Root Mean Square Error (RMSE) is used for performance evaluation and the RMSE of the ANN model is 0.8.
利用高频雷达或高速摄像机测量高尔夫球速度、发射角度和旋转等参数的击球模式分析仪。但高尔夫球移动几十米的搬运距离很难测量。因此,高尔夫球的携带距离是由高尔夫球的初速度、发射角度、旋转速率等多种变量来计算的。本文基于人工神经网络(ANN)计算了高尔夫球的携带距离。人工神经网络模型使用五个因变量(球杆速度、攻角、高尔夫球速度、发射角度和旋转速率)作为输入变量。人工神经网络模型的结构由一个输入层、四个隐藏层和一个输出层组成。隐藏层的隐藏节点分别由10个、20个、20个、20个节点组成。使用均方根误差(RMSE)进行性能评估,ANN模型的RMSE为0.8。
{"title":"A Design and Implementaion of Carry Distance Prediction Model using Artificial Neural Network","authors":"J. Ko, Kyeongrok Kim, Jae-Hyun Kim","doi":"10.1109/ICTC.2018.8539694","DOIUrl":"https://doi.org/10.1109/ICTC.2018.8539694","url":null,"abstract":"A golf shot pattern analyzer, which can derive a golf ball speed, a launch angle, and a spin, measures parameters using a high frequency radar or a high speed camera. But it is difficult to measure a carry distance of golf ball moving several tens of meters. Therefore, the carry distance of golf ball is calculated by various variables such as an initial velocity of golf ball, a launch angle, a spin rate, etc. In this paper, we calculate the carry distance of golf ball based on an Artificial Neural Network (ANN). The ANN model uses five dependent variables (club speed, attack angle, golf ball speed, launch angle, and spin rate) as input variables. A structure of the ANN model consists of one input layer, four hidden layers, and one output layer. Hidden nodes of the hidden layer are composed of 10, 20, 20, and 20 nodes, respectively. A Root Mean Square Error (RMSE) is used for performance evaluation and the RMSE of the ANN model is 0.8.","PeriodicalId":417962,"journal":{"name":"2018 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121405904","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
Antenna Element Pattern Estimation based on Array Beam Pattern 基于阵列波束方向图的天线单元方向图估计
Lakju Sung, Sangmi Noh, D. Cho
As millimeter-wave (mmWave) communication based on massive multiple input multiple output (MIMO) system has promised as a new technology, beamforming techniques are studied actively to overcome high path-loss. Since antenna element patterns and beam patterns are distorted because of mutual coupling between antennas, it is important to consider practical antenna element radiation pattern when beamforming are studied and used to reflect practical environment. By knowing practical antenna element patterns, mutual coupling problems can be solved and beamforming techniques can be studied more flexibly considering practical environments. It is, however, very difficult to measure antenna element patterns because of small peak gain compared to beam gain. Therefore, we propose an antenna element pattern estimation algorithm based on array beam pattern which can be measured relatively easily.
随着基于海量多输入多输出(MIMO)系统的毫米波通信作为一种新技术的发展,人们积极研究波束形成技术以克服高路径损耗。由于天线之间的相互耦合会造成天线单元方向图和波束方向图的畸变,因此在研究波束形成并用于反映实际环境时,考虑实际天线单元的辐射方向图是很重要的。通过了解实际天线单元方向图,可以解决相互耦合问题,并根据实际环境更灵活地研究波束形成技术。然而,由于天线单元的峰值增益比波束增益小,因此测量天线单元的方向图非常困难。因此,我们提出了一种基于相对容易测量的阵列波束方向图的天线单元方向图估计算法。
{"title":"Antenna Element Pattern Estimation based on Array Beam Pattern","authors":"Lakju Sung, Sangmi Noh, D. Cho","doi":"10.1109/ICTC.2018.8539498","DOIUrl":"https://doi.org/10.1109/ICTC.2018.8539498","url":null,"abstract":"As millimeter-wave (mmWave) communication based on massive multiple input multiple output (MIMO) system has promised as a new technology, beamforming techniques are studied actively to overcome high path-loss. Since antenna element patterns and beam patterns are distorted because of mutual coupling between antennas, it is important to consider practical antenna element radiation pattern when beamforming are studied and used to reflect practical environment. By knowing practical antenna element patterns, mutual coupling problems can be solved and beamforming techniques can be studied more flexibly considering practical environments. It is, however, very difficult to measure antenna element patterns because of small peak gain compared to beam gain. Therefore, we propose an antenna element pattern estimation algorithm based on array beam pattern which can be measured relatively easily.","PeriodicalId":417962,"journal":{"name":"2018 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121891811","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
An Efficient Topology Refining Scheme for Apache Flink 一种高效的Apache Flink拓扑优化方案
Muhammad Hanif, Choonhwa Lee
In the past decade, there has been a boom in the volume of data and in the popularity of cloud applications with industry and academia keenly interested in big data analytics, streaming application, and social networking applications. This led to the emergence of real-time distributed stream processing systems such as Flink, Storm, Dataflow, and Samza. These systems process complex queries on streaming data sets to be distributed across multiple worker nodes in a cluster. Few of them provide adequate supports to adapt the topologies of stream processing tasks to changing input workload. We present an intelligent and efficient topology adjustment scheme which allow Flink framework to refine its topology on the basis of incoming workload. It is designed to increase the overall performance by making the refining of topology robust according to incoming workload streams on the fly, while maintaining SLA constraints. Apache Flink distributed processing engine is used as testbed in the paper. Our preliminary results indicate that the proposed system outperforms the existing default framework.
在过去的十年中,数据量激增,云应用的普及,工业界和学术界对大数据分析、流媒体应用和社交网络应用非常感兴趣。这导致了实时分布式流处理系统的出现,如Flink、Storm、Dataflow和Samza。这些系统处理对流数据集的复杂查询,这些数据集将分布在集群中的多个工作节点上。它们中很少提供足够的支持,以使流处理任务的拓扑适应不断变化的输入工作负载。我们提出了一种智能高效的拓扑调整方案,使Flink框架能够根据传入的工作负载对其拓扑进行优化。它的设计目的是在保持SLA约束的同时,根据传入的工作负载流对拓扑进行健壮的细化,从而提高整体性能。本文采用Apache Flink分布式处理引擎作为测试平台。我们的初步结果表明,所提出的系统优于现有的默认框架。
{"title":"An Efficient Topology Refining Scheme for Apache Flink","authors":"Muhammad Hanif, Choonhwa Lee","doi":"10.1109/ICTC.2018.8539696","DOIUrl":"https://doi.org/10.1109/ICTC.2018.8539696","url":null,"abstract":"In the past decade, there has been a boom in the volume of data and in the popularity of cloud applications with industry and academia keenly interested in big data analytics, streaming application, and social networking applications. This led to the emergence of real-time distributed stream processing systems such as Flink, Storm, Dataflow, and Samza. These systems process complex queries on streaming data sets to be distributed across multiple worker nodes in a cluster. Few of them provide adequate supports to adapt the topologies of stream processing tasks to changing input workload. We present an intelligent and efficient topology adjustment scheme which allow Flink framework to refine its topology on the basis of incoming workload. It is designed to increase the overall performance by making the refining of topology robust according to incoming workload streams on the fly, while maintaining SLA constraints. Apache Flink distributed processing engine is used as testbed in the paper. Our preliminary results indicate that the proposed system outperforms the existing default framework.","PeriodicalId":417962,"journal":{"name":"2018 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120893478","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: 2
Spectral asymmetry of EEG signals in transition from conscious to unconscious state 脑电信号从意识状态到无意识状态转换的频谱不对称性
Seong-Ho Park, I. Jung, Hyun-Chool Shin
We analyzed the electroencephalogram (EEG) spectral distribution during anesthesia. Especially, the spectral characteristics of alpha band(8~12Hz) at the frontal head were investigated. Using skewness and kurtosis, the asymmetry of spectral distribution was quantified. A set of EEG data from 10 subjects was obtained during general anesthesia with Propofol (dose rate of 12mg/kg/h). We observed distinct changes in spatial distribution of EEG spectrum near loss and recovery of consciousness. Also, spectral asymmetry was quantitatively measured in terms of skewness and kurtosis. These findings can be used for developing measures of the depth of anesthesia.
我们分析了麻醉期间脑电图(EEG)的频谱分布。重点研究了头部α波段(8~12Hz)的光谱特征。利用偏度和峰度对光谱分布的不对称性进行量化。采用异丙酚(剂量率12mg/kg/h)全身麻醉,获得10例患者的脑电图数据。我们观察到在意识丧失和恢复前后,脑电频谱的空间分布有明显的变化。此外,光谱不对称性在偏度和峰度方面进行了定量测量。这些发现可用于制定麻醉深度的措施。
{"title":"Spectral asymmetry of EEG signals in transition from conscious to unconscious state","authors":"Seong-Ho Park, I. Jung, Hyun-Chool Shin","doi":"10.1109/ICTC.2018.8539628","DOIUrl":"https://doi.org/10.1109/ICTC.2018.8539628","url":null,"abstract":"We analyzed the electroencephalogram (EEG) spectral distribution during anesthesia. Especially, the spectral characteristics of alpha band(8~12Hz) at the frontal head were investigated. Using skewness and kurtosis, the asymmetry of spectral distribution was quantified. A set of EEG data from 10 subjects was obtained during general anesthesia with Propofol (dose rate of 12mg/kg/h). We observed distinct changes in spatial distribution of EEG spectrum near loss and recovery of consciousness. Also, spectral asymmetry was quantitatively measured in terms of skewness and kurtosis. These findings can be used for developing measures of the depth of anesthesia.","PeriodicalId":417962,"journal":{"name":"2018 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124079244","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
3D Articulated Human Motion Analysis System Using a Single Low-Cost RGB-D Sensor 使用单一低成本RGB-D传感器的三维关节人体运动分析系统
Jongsung Kim, Myung-Gyu Kim
In this paper, an cost-effective, highly accurate 3D articulated human motion analysis system is proposed. In the proposed system, a single low-cost RGB-D sensor captures a color image and depth one of human motion. Then, a deep learning-based 2D motion analysis process accurately estimates intermediate 2D articulated human motion from the color image. Finally, a color-to-depth warping-based 3D motion transform process effectively compute final 3D articulated human motion from the depth image. The proposed system is cost-effective but highly accurate. Experimental results show that the proposed system outperforms the commercial system using the same RGB-D sensor when compared in terms of accuracy.
本文提出了一种经济、高精度的三维关节人体运动分析系统。在该系统中,单个低成本RGB-D传感器捕获人体运动的彩色图像和深度图像。然后,基于深度学习的二维运动分析过程从彩色图像中准确地估计出中间的二维关节人体运动。最后,基于颜色-深度扭曲的三维运动变换过程有效地从深度图像中计算出最终的三维关节人体运动。所提出的系统具有成本效益,但精度高。实验结果表明,该系统在精度方面优于使用相同RGB-D传感器的商用系统。
{"title":"3D Articulated Human Motion Analysis System Using a Single Low-Cost RGB-D Sensor","authors":"Jongsung Kim, Myung-Gyu Kim","doi":"10.1109/ICTC.2018.8539680","DOIUrl":"https://doi.org/10.1109/ICTC.2018.8539680","url":null,"abstract":"In this paper, an cost-effective, highly accurate 3D articulated human motion analysis system is proposed. In the proposed system, a single low-cost RGB-D sensor captures a color image and depth one of human motion. Then, a deep learning-based 2D motion analysis process accurately estimates intermediate 2D articulated human motion from the color image. Finally, a color-to-depth warping-based 3D motion transform process effectively compute final 3D articulated human motion from the depth image. The proposed system is cost-effective but highly accurate. Experimental results show that the proposed system outperforms the commercial system using the same RGB-D sensor when compared in terms of accuracy.","PeriodicalId":417962,"journal":{"name":"2018 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124144633","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: 2
Impact of Mutual Coupling on Performance of DoA Estimation using MUSIC 相互耦合对MUSIC DoA估计性能的影响
Jung-Bin Kim, C. Sin
This paper investigates the impact of mutual coupling (MC) on the performance of direction of arrival (DoA) estimation based on multiple signal classification (MUSIC) algorithm with uniform linear array (ULA). Among various schemes for compensating MC, two widely used ones are compared in the sense of root mean squire error (RMSE); The one is estimating the mutual coupling coefficients and the other is ignoring boundary antennas of ULA. It is shown that the former one is superior to the later in low signal-to-noise ratio (SNR) regimes and/or a number of samples is small, but vice versa as SNR and/or the number of samples increase.
研究了基于均匀线性阵列(ULA)的多信号分类(MUSIC)算法中相互耦合(MC)对到达方向(DoA)估计性能的影响。在各种补偿MC的方案中,比较了两种常用的补偿方案在均方根误差(RMSE)意义上的差异;一种是估计互耦系数,另一种是忽略ULA的边界天线。结果表明,在低信噪比(SNR)和/或样本数量较少的情况下,前者优于后者,但随着信噪比和/或样本数量的增加,反之亦然。
{"title":"Impact of Mutual Coupling on Performance of DoA Estimation using MUSIC","authors":"Jung-Bin Kim, C. Sin","doi":"10.1109/ICTC.2018.8539655","DOIUrl":"https://doi.org/10.1109/ICTC.2018.8539655","url":null,"abstract":"This paper investigates the impact of mutual coupling (MC) on the performance of direction of arrival (DoA) estimation based on multiple signal classification (MUSIC) algorithm with uniform linear array (ULA). Among various schemes for compensating MC, two widely used ones are compared in the sense of root mean squire error (RMSE); The one is estimating the mutual coupling coefficients and the other is ignoring boundary antennas of ULA. It is shown that the former one is superior to the later in low signal-to-noise ratio (SNR) regimes and/or a number of samples is small, but vice versa as SNR and/or the number of samples increase.","PeriodicalId":417962,"journal":{"name":"2018 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122653317","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: 2
Bayesian Deep Learning-based Confidence-aware Solar Irradiance Forecasting System 基于贝叶斯深度学习的自信感知太阳辐照度预测系统
HyunYong Lee, Byung-Tak Lee
For stable and successful use of grid-connected PV (photovoltaic) plants, it is quite necessary to know the expected power from PV plants in advance. However, forecasting PV output power accurately is difficult in practical cases where uncertainties are unavoidable. In this paper, we propose a confidence-aware forecasting system that produces a point forecast together with its confidence information. Our system classifies forecast outputs into confident forecasts and non-confident forecasts using the confidence information. Then, the confident forecast is used directly and the non-confident forecast is replaced by its lower bound, which is desirable for conservative scheduling of existing power plants. Through the experiments, we show that MAPE (maximum absolute percentage error) of the confident forecasts and the non-confident forecasts are 9.8% and 21.5%, respectively. We also show that the lower bound is lower than actual value in over 95% of the non-confident forecasts. The results show that our approach is good to classify forecasts into confident forecasts and non-confident forecasts and to produce effective lower bounds.
为了光伏并网电站的稳定和成功使用,提前了解光伏电站的预期功率是非常必要的。然而,在不确定性不可避免的实际情况下,准确预测光伏输出功率是很困难的。本文提出了一种具有置信度感知的预测系统,该系统在产生点预测的同时产生点预测的置信度信息。我们的系统使用置信度信息将预测输出分为可信预测和非可信预测。然后,直接使用置信预测,用置信预测的下界代替非置信预测,以满足现有电厂的保守调度要求。通过实验,我们发现自信预测和非自信预测的最大绝对百分比误差(MAPE)分别为9.8%和21.5%。我们还表明,在95%以上的非自信预测中,下限低于实际值。结果表明,我们的方法可以很好地将预测分为可信预测和非可信预测,并产生有效的下界。
{"title":"Bayesian Deep Learning-based Confidence-aware Solar Irradiance Forecasting System","authors":"HyunYong Lee, Byung-Tak Lee","doi":"10.1109/ICTC.2018.8539601","DOIUrl":"https://doi.org/10.1109/ICTC.2018.8539601","url":null,"abstract":"For stable and successful use of grid-connected PV (photovoltaic) plants, it is quite necessary to know the expected power from PV plants in advance. However, forecasting PV output power accurately is difficult in practical cases where uncertainties are unavoidable. In this paper, we propose a confidence-aware forecasting system that produces a point forecast together with its confidence information. Our system classifies forecast outputs into confident forecasts and non-confident forecasts using the confidence information. Then, the confident forecast is used directly and the non-confident forecast is replaced by its lower bound, which is desirable for conservative scheduling of existing power plants. Through the experiments, we show that MAPE (maximum absolute percentage error) of the confident forecasts and the non-confident forecasts are 9.8% and 21.5%, respectively. We also show that the lower bound is lower than actual value in over 95% of the non-confident forecasts. The results show that our approach is good to classify forecasts into confident forecasts and non-confident forecasts and to produce effective lower bounds.","PeriodicalId":417962,"journal":{"name":"2018 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128399783","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: 5
Efficient SIC-MMSE Detection Using Neumann Series Expansion 基于诺伊曼级数展开的SIC-MMSE检测
Zhilin Fu, Satya Chan, Sooyoung Kim
In this paper, we propose a complexity reduced soft interference cancellation minimum mean squared error (SIC-MMSE) detection scheme for coded massive MIMO systems. The presented method works efficiently when the channel matrix becomes asymptotically orthogonal with a sufficiently large number of receive antennas at the base station. With such a characteristic, the conventional SIC-MMSE detection method can be simplified to a layer independent matrix inversion process, and further complexity reduction is achieved by introducing the Neumann series expansion (NSE) method. The simulation results investigated in this paper reveal that the proposed method can efficiently reduce the complexity without appreciable performance degradation.
在本文中,我们提出了一种降低复杂度的编码大规模MIMO系统软干扰抵消最小均方误差(SIC-MMSE)检测方案。当基站接收天线数量足够多时,信道矩阵渐近正交时,所提出的方法能有效地解决这一问题。利用这一特性,可以将传统的SIC-MMSE检测方法简化为与层无关的矩阵反演过程,并通过引入Neumann级数展开(NSE)方法进一步降低了复杂度。仿真结果表明,该方法可以有效地降低算法复杂度,且不会造成明显的性能下降。
{"title":"Efficient SIC-MMSE Detection Using Neumann Series Expansion","authors":"Zhilin Fu, Satya Chan, Sooyoung Kim","doi":"10.1109/ICTC.2018.8539491","DOIUrl":"https://doi.org/10.1109/ICTC.2018.8539491","url":null,"abstract":"In this paper, we propose a complexity reduced soft interference cancellation minimum mean squared error (SIC-MMSE) detection scheme for coded massive MIMO systems. The presented method works efficiently when the channel matrix becomes asymptotically orthogonal with a sufficiently large number of receive antennas at the base station. With such a characteristic, the conventional SIC-MMSE detection method can be simplified to a layer independent matrix inversion process, and further complexity reduction is achieved by introducing the Neumann series expansion (NSE) method. The simulation results investigated in this paper reveal that the proposed method can efficiently reduce the complexity without appreciable performance degradation.","PeriodicalId":417962,"journal":{"name":"2018 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128587572","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
Combining Reward Shaping and Curriculum Learning for Training Agents with High Dimensional Continuous Action Spaces 结合奖励塑造与课程学习的高维连续动作空间智能体训练
Sooyoung Jang, Mikyong Han
The needs for training agent with high dimensional continuous action spaces will increase as the robot hardware such as robotic arms and humanoid robots are becoming more and more sophisticated. However, it is difficult and time-consuming task. To tackle the problem, we combine reward shaping and curriculum learning. More specifically, the rewards are provided to the agent for every step it takes and the difficulty of the problem gradually increases depending on the agent learning. Both reward function and curriculum are designed to make the agent achieve its objective. The simulation results demonstrate that the proposed scheme outperforms the comparisons.
随着机械臂和类人机器人等机器人硬件的日益复杂化,对具有高维连续动作空间的智能体训练的需求将会增加。然而,这是一项困难且耗时的任务。为了解决这个问题,我们将奖励塑造和课程学习结合起来。更具体地说,智能体每走一步就会获得奖励,问题的难度也会随着智能体的学习而逐渐增加。奖励函数和课程的设计都是为了使代理实现其目标。仿真结果表明,所提方案优于对比方案。
{"title":"Combining Reward Shaping and Curriculum Learning for Training Agents with High Dimensional Continuous Action Spaces","authors":"Sooyoung Jang, Mikyong Han","doi":"10.1109/ICTC.2018.8539438","DOIUrl":"https://doi.org/10.1109/ICTC.2018.8539438","url":null,"abstract":"The needs for training agent with high dimensional continuous action spaces will increase as the robot hardware such as robotic arms and humanoid robots are becoming more and more sophisticated. However, it is difficult and time-consuming task. To tackle the problem, we combine reward shaping and curriculum learning. More specifically, the rewards are provided to the agent for every step it takes and the difficulty of the problem gradually increases depending on the agent learning. Both reward function and curriculum are designed to make the agent achieve its objective. The simulation results demonstrate that the proposed scheme outperforms the comparisons.","PeriodicalId":417962,"journal":{"name":"2018 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129424256","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: 5
期刊
2018 International Conference on Information and Communication Technology Convergence (ICTC)
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:604180095
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