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2020 IEEE International Conference on Networking, Sensing and Control (ICNSC)最新文献

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A Petri Net-Based Traffic Rerouting System by Adopting Traffic Lights and Dynamic Message Signs 基于Petri网的交通灯与动态消息标志的交通改道系统
Pub Date : 2020-10-30 DOI: 10.1109/ICNSC48988.2020.9238091
Liang Qi, Wenjing Luan, Guanjun Liu, X. Lu, Xiwang Guo
This paper designs a rerouting system for preventing large-scale urban traffic congestion by adopting traffic lights and dynamic message signs. The system can not only stop the vehicles driving toward the traffic jams but also recommend vehicles of driving to some directions at signalized intersections or the U-turn road section. As a visual and mathematical formalism of modeling discrete-event dynamic systems, timed Petri nets (TPNs) can describe the control and cooperation of traffic lights and dynamic message signs. The behavioral properties of the rerouting system such as reachability, boundedness, liveness, and reversibility are verified based on TPN. Besides, the correctness of the system without any traffic flow conflict is ensured. A case study is given to illustrate our method.
本文设计了一种采用红绿灯和动态信息标志的路径改道系统,以防止大规模的城市交通拥堵。该系统不仅可以阻止车辆向交通拥堵方向行驶,还可以在信号交叉口或掉头路段向某些方向推荐行驶车辆。时间Petri网作为离散事件动态系统建模的一种视觉和数学形式,可以描述交通信号灯和动态信息标志的控制与协同。基于TPN验证了重路由系统的可达性、有界性、活动性和可逆性等行为特性。保证了系统的正确性,不存在交通流冲突。最后给出了一个案例来说明我们的方法。
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引用次数: 2
A Diverse Biases Non-negative Latent Factorization of Tensors Model for Dynamic Network Link Prediction 动态网络链路预测的多偏差非负潜分解张量模型
Pub Date : 2020-10-30 DOI: 10.1109/ICNSC48988.2020.9238117
Xuke Wu, Hang Gou, Hao Wu, Juan Wang, Minzhi Chen, S. Lai
Dynamic networks vary over time, making it vital to capture networks temporal patterns for predicting missing links with high accuracy. A biased non-negative latent factorization of tensors (BNLFT) model is very effective in extracting such patterns from dynamic data. However, a BNLFT model only integrates single bias, which cannot adequately represents the volatility of the dynamic data. To address this issue, this paper presents a Diverse Biases Non-negative Latent Factorization of Tensors (DBNT) model for accurate prediction of missing links in dynamic networks. Meanwhile, for further prediction accuracy improvement, the preprocessing bias is integrated into the DBNT model. Empirical studies on two dynamic networks datasets from real applications show that compared with state of the art predictors, a DBNT model achieves higher prediction accuracy.
动态网络随时间而变化,因此捕获网络时间模式对于高精度预测缺失链接至关重要。有偏的非负潜分解张量(BNLFT)模型在从动态数据中提取此类模式方面非常有效。然而,BNLFT模型只集成了单偏差,不能充分代表动态数据的波动性。为了解决这一问题,本文提出了一种多元偏差非负潜分解张量(DBNT)模型,用于准确预测动态网络中的缺失环节。同时,为了进一步提高预测精度,将预处理偏差集成到DBNT模型中。对两个实际应用的动态网络数据集的实证研究表明,与现有的预测器相比,DBNT模型具有更高的预测精度。
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引用次数: 1
Intelligent Scheduling for a Rolling Process in Steel Production Systems 钢铁生产系统中轧制过程的智能调度
Pub Date : 2020-10-30 DOI: 10.1109/ICNSC48988.2020.9238060
Ziyan Zhao, Shixin Liu, Mengchu Zhou, Xiwang Guo
A wire rod and bar rolling process is important in steel production systems. Its scheduling problem involves the constraints on sequence-dependent family setup time and release time. This work intends to schedule the batches with multiple jobs to minimize the number of late jobs. An important characteristic of this problem is that the number of late jobs within a batch varies with its start time. Given a start time of a batch, the number of late jobs within it can be derived. Two problem-specific scatter search algorithms are developed to solve this problem. They are tested on a benchmark with 120 instances whose optimal solutions are known and compared with an exact method. It shows that they can effectively solve the concerned problem and are much faster than the exact method for larger-scale cases. Their usage can well meet the industrial scheduling needs arising from a wire rod and bar rolling process while an exact method fails.
在钢铁生产系统中,线材和棒材的轧制工艺是非常重要的。它的调度问题涉及序列相关的族建立时间和释放时间的约束。本工作计划对具有多个作业的批次进行调度,以尽量减少延迟作业的数量。该问题的一个重要特征是,批处理中延迟作业的数量随其开始时间而变化。给定一个批的开始时间,可以导出其中延迟作业的数量。为了解决这一问题,开发了两种针对特定问题的分散搜索算法。它们在120个已知最优解的实例上进行基准测试,并与精确方法进行比较。结果表明,该方法可以有效地解决相关问题,并且对于更大规模的案例,其求解速度要比精确方法快得多。它们的使用可以很好地满足线材和棒材轧制过程中产生的工业调度需求,而精确的方法却无法实现。
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引用次数: 6
Multi-resolution Cascaded Network with Depth-similar Residual Module for Real-time Semantic Segmentation on RGB-D Images 基于深度相似残差模块的RGB-D图像实时语义分割多分辨率级联网络
Pub Date : 2020-10-30 DOI: 10.1109/ICNSC48988.2020.9238079
Zhijia Zheng, Donghan Xie, Chunlin Chen, Zhangqing Zhu
Multi-class indoor semantic segmentation using deep fully convolutional neural networks on RGB images has been widely used in scene parsing and human-computer interaction. Due to the wide application of depth information sensors, we can get more understanding of geographic location information from the depth information channel, but it also leads to high computational cost and memory usage. In this paper, we present a real-time deep neural network for semantic segmentation tasks on RGB-D images. First, we use an intuitive and efficient convolution operation to approximate the depth information to the pixel operation without adding additional parameters, which can be easily integrated into the deep convolutional neural network. Then, we use a multi-resolution branching structure and train the network with appropriate label guidance as the loss function to obtain a high-quality performance of semantic segmentation. The proposed approach demonstrates real-time inference on datasets NYUv2 and SUN RGB-D with a good balance of accuracy and speed on a single GPU card.
基于深度全卷积神经网络的RGB图像多类室内语义分割已广泛应用于场景分析和人机交互。由于深度信息传感器的广泛应用,我们可以从深度信息通道中获得更多的地理位置信息,但这也导致了较高的计算成本和内存占用。本文提出了一种用于RGB-D图像语义分割任务的实时深度神经网络。首先,我们使用直观高效的卷积运算,在不添加额外参数的情况下,将深度信息近似为像素运算,可以很容易地集成到深度卷积神经网络中。然后,我们使用多分辨率分支结构,并以适当的标签引导作为损失函数来训练网络,以获得高质量的语义分割性能。该方法在单个GPU卡上演示了对NYUv2和SUN RGB-D数据集的实时推理,并实现了精度和速度的良好平衡。
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引用次数: 7
A Prototype of Privacy Identification System for Smart Toy Dialogue Design 智能玩具对话设计中的隐私识别系统原型
Pub Date : 2020-10-30 DOI: 10.1109/ICNSC48988.2020.9238116
Pei-Chun Lin, Benjamin Yankson, P. Hung
Privacy issues are becoming more and more important in Artificial Intelligent (AI). Yet, there is a lack of systematized or standardized privacy framework that focuses on AI embedded smart toys, with conversation functionality, to address user privacy requirements. To address this issue, we develop a prototype of a Privacy Identification (PI) system for Dialogue Design (DD). We call this system a PI-DD system. To develop such a PI-DD system, our research works were separated into two parts: (1) Create phrases' database that considers the Personally Identifiable Information (PII) law which states privacy laws and information security best practices and is used in various U.S. federal, and (2) Build the dialogue rule for robot conversations. To illustrate the algorithms of the PI-DD system, we take the sample phrase of Mattel's Hello-Barbie smart toy. We present an architecture of the PI-DD algorithm at the end of this paper.
在人工智能领域,隐私问题变得越来越重要。然而,目前还缺乏系统化或标准化的隐私框架,专注于具有对话功能的人工智能嵌入式智能玩具,以满足用户的隐私要求。为了解决这个问题,我们开发了一个用于对话设计(DD)的隐私识别(PI)系统的原型。我们称这个系统为PI-DD系统。为了开发这样一个PI-DD系统,我们的研究工作分为两部分:(1)创建考虑个人身份信息(PII)法的短语数据库,该法律规定了隐私法和信息安全最佳实践,并在美国各个联邦使用;(2)构建机器人对话的对话规则。为了说明PI-DD系统的算法,我们以美泰公司的Hello-Barbie智能玩具为例。本文最后给出了PI-DD算法的结构。
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引用次数: 1
Ensemble active imputation for incomplete data 不完整数据的集成主动插值
Pub Date : 2020-10-30 DOI: 10.1109/ICNSC48988.2020.9238068
Min Wang, Binqian Li, Fan Min, Jiaxue Liu, Manlong Wang
Real data is often incomplete, which hinders its usability and learnability. A reasonable machine learning scenario is to obtain some values and labels at cost upon request. In this paper, we propose a new ensemble active missing imputation (EAMI) algorithm to handle the learning task. First, we design five missing imputation methods, including mean filling, cubic spline interpolation filling, sample-based collaborative filtering weighed filling, attribute-based collaborative filtering weighted filling and k-nearest neighbor (KNN) filling. Second, we propose an ensemble imputation model through the linear weighting of attribute prediction values. Third, We propose a three-way decisions model that uses the variance of the predicted values to fill in missing values by querying true label or using predicted values. We conduct experiments on University of California Irvine(UCI) datasets. The results of significance test verify the effectiveness of EAMI and its superiority over KNN missing data imputation algorithms.
真实的数据往往是不完整的,这阻碍了它的可用性和可学习性。合理的机器学习场景是根据请求以成本获得一些值和标签。在本文中,我们提出了一种新的集成主动缺失输入(EAMI)算法来处理学习任务。首先,设计了均值填充、三次样条插值填充、基于样本的协同过滤加权填充、基于属性的协同过滤加权填充和k-最近邻(KNN)填充五种缺失填充方法。其次,通过属性预测值的线性加权,提出了一种集成估算模型。第三,我们提出了一个三向决策模型,通过查询真标签或使用预测值,利用预测值的方差来填补缺失值。我们在加州大学欧文分校(UCI)的数据集上进行实验。显著性检验的结果验证了EAMI算法的有效性及其相对于KNN缺失数据补全算法的优越性。
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引用次数: 0
A Momentum-incorporated Fast Parallelized Stochastic Gradient Descent for Latent Factor Model in Shared Memory Systems 基于动量的共享存储系统潜在因子模型快速并行随机梯度下降
Pub Date : 2020-10-30 DOI: 10.1109/ICNSC48988.2020.9238077
Hang Gou, Jinli Li, Wen Qin, Chunlin He, Yurong Zhong, Rui Che
Latent factor (LF) model is an effective method for extracting useful knowledge from high-dimensional and sparse (HiDS) data generated by various industrial applications. Parallelized stochastic gradient descent (SGD) is widely used in building a parallelized LF model for handling large-scale HiDS data, but parallelized SGD suffers from slow convergence and considerable time cost. To address this issue, this study incorporates the principle of momentum into parallelized SGD, where momentum decay coefficient and learning rate are adjusted dynamically, and proposes a momentum-incorporated fast parallelized SGD (MFSGD) method to discover latent patterns from large-scale HiDS data. The experiments on two datasets show that the proposed MFSGD method outperforms state-of-the-art parallel SGD methods in terms of computational efficiency.
潜在因素模型(Latent factor model, LF)是从各种工业应用中产生的高维稀疏数据中提取有用知识的有效方法。并行化随机梯度下降法(SGD)被广泛应用于建立大规模HiDS数据的并行化LF模型,但其收敛速度慢,耗时长。针对这一问题,本研究将动量原理引入到并行化SGD中,动态调整动量衰减系数和学习率,提出了一种基于动量的快速并行化SGD (MFSGD)方法,从大规模HiDS数据中发现潜在模式。在两个数据集上的实验表明,所提出的MFSGD方法在计算效率方面优于当前最先进的并行SGD方法。
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引用次数: 1
Vehicle Detection in UAV Aerial Images Based on Improved YOLOv3 基于改进YOLOv3的无人机航拍图像车辆检测
Pub Date : 2020-10-30 DOI: 10.1109/ICNSC48988.2020.9238059
S. Zhang, Lin Chai, Lizuo Jin
Vehicle detection in UAV aerial images with complex scenes is a challenging task in intelligent transportation systems, as the sizes of vehicles in the images change with the flight height of UAV. When the UAV is far from the ground, the vehicle object become a small object, which makes it difficult to be detected. This paper presents an improved YOLOv3 model with deeper feature extraction network and four different scale detection layers to detect vehicles in aerial images accurately and robustly. When the high-resolution image of UAV aerial is zoomed to $mathbf{608}timesmathbf{608}$ as input, the detection speed of improved YOLOv3 is equivalent to original YOLOv3, and the recall rate and AP are significantly increased by 9%, 11% respectively, while the detection precision reaches 97.09%.
复杂场景无人机航拍图像中的车辆检测是智能交通系统中的一项具有挑战性的任务,因为图像中车辆的大小会随着无人机飞行高度的变化而变化。当无人机远离地面时,载具物体变成一个小物体,难以被探测到。本文提出了一种改进的YOLOv3模型,该模型采用更深层次的特征提取网络和四个不同尺度的检测层来准确、鲁棒地检测航空图像中的车辆。当无人机航拍高分辨率图像放大到$mathbf{608}倍mathbf{608}$作为输入时,改进后的YOLOv3检测速度与原始YOLOv3相当,召回率和AP分别显著提高9%、11%,检测精度达到97.09%。
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引用次数: 4
Distributed PV Identification Based on High-Precision Bus Data Analysis 基于高精度总线数据分析的分布式光伏识别
Pub Date : 2020-10-30 DOI: 10.1109/ICNSC48988.2020.9238115
Xincheng Shen, Shaoxiong Huang, Zhi Li, Kaifeng Zhang
With the rapid development of distributed photovoltaic (PV), it is necessary to study its low-cost output identification technology. In this paper, a low-cost PV output identification method is proposed by using feature extraction. This paper analyzes the high-precision bus data, and uses harmonic analysis, wavelet analysis and Ensemble Empirical Mode Decomposition (EEMD) to extract the operating features of PV output. Then this paper screens these extracted features with the correlation between features and PV output, the stability of the features at different times and the difference of features in different signals. The appropriate features are selected for PV output identification, and its identification accuracy is calculated. The experimental results show that with the method of the Ensemble Empirical Mode Decomposition, an appropriate operating feature can be extracted. This feature can identify the distributed PV output in small bus bar when the PV is working stably.
随着分布式光伏的快速发展,有必要对其低成本输出识别技术进行研究。本文提出了一种基于特征提取的低成本光伏输出识别方法。本文对高精度总线数据进行分析,利用谐波分析、小波分析和集成经验模态分解(EEMD)提取光伏输出的运行特征。然后根据特征与PV输出的相关性、特征在不同时刻的稳定性以及特征在不同信号中的差异性对提取的特征进行筛选。选择合适的特征进行光伏输出识别,并计算其识别精度。实验结果表明,采用集成经验模态分解方法可以提取出合适的操作特征。该特性可以在PV稳定工作时识别分布式PV在小母线上的输出。
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引用次数: 0
A Variable Granularity Optimization Approach for Task Decomposition 一种任务分解的变粒度优化方法
Pub Date : 2020-10-30 DOI: 10.1109/ICNSC48988.2020.9238098
Di Dai, Wanwen Zheng, Yuxiang Sun, Chengcheng Xu, Xianjun Zhu, Xianzhong Zhou
In recent years, task decomposition has drawn great attention in the equipment maintenance field. However, many investigations are qualitative, which are hard to execute due to the uneven and irregular resource distribution. To solve this problem, a novel variable granularity method is proposed, which develops a quantitative strategy for a task decomposition issue. First, an initial decomposition is operated based on the maintenance technology and internal structure. Then, three quantitative models are formulated to optimize the task set, which is recursively decomposed until the result satisfies the thresholds of granularity, coupling and equilibrium. Finally, a real experiment is analyzed to validate the effectiveness of the proposed method.
近年来,任务分解在设备维修领域受到了广泛的关注。然而,许多调查是定性的,由于资源分配不均和不规律,难以执行。为了解决这一问题,提出了一种新的变粒度方法,为任务分解问题提供了一种量化策略。首先,根据维修技术和内部结构进行初步分解。然后,建立三个定量模型对任务集进行优化,并对任务集进行递归分解,直到结果满足粒度、耦合和均衡阈值。最后,通过实际实验验证了所提方法的有效性。
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引用次数: 0
期刊
2020 IEEE International Conference on Networking, Sensing and Control (ICNSC)
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