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2021 International Conference on Computer Engineering and Application (ICCEA)最新文献

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UCAV maneuvering trajectory prediction based on PSO-CNN 基于PSO-CNN的无人飞行器机动轨迹预测
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00018
Xie Lei, Ding Dali, Zhang Hongpeng, Wang Jianpu, Zhang Zhuoran
To the problem of low accuracy of unmanned combat aircraft maneuver trajectory, a particle swarm optimization convolutional neural network prediction method is proposed. Firstly, establish a three-degree-of-freedom model of Unmanned Combat Aerial Vehicles (UCAV) with constraints to solve the problem of trajectory source. The structure of the convolutional neural network is analyzed, and the particle swarm optimization algorithm (PSO) is used to replace the backpropagation algorithm to update the internal weights and biases. The PSO is compared with multiple algorithms, and the results show that the PSO updates the weights fast and has small errors. Finally, the prediction is made on a relatively complex and cluttered maneuvering trajectory. The method proposed in this paper is compared with three traditional prediction methods, and the result shows that the method proposed in this paper has small prediction errors.
针对无人作战飞机机动轨迹精度低的问题,提出了一种粒子群优化卷积神经网络预测方法。首先,建立了带约束的三自由度无人作战飞行器模型,解决了轨迹源问题;分析了卷积神经网络的结构,采用粒子群优化算法(PSO)代替反向传播算法更新内部权值和偏置。将粒子群算法与多种算法进行比较,结果表明粒子群算法更新权值快,误差小。最后,对较为复杂和杂乱的机动轨迹进行了预测。将本文提出的方法与三种传统预测方法进行了比较,结果表明本文提出的方法预测误差较小。
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引用次数: 3
A Hierarchical Autonomous Driving Framework Combining Reinforcement Learning and Imitation Learning 结合强化学习和模仿学习的分层自动驾驶框架
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00084
Zeyu Li
Autonomous driving technology aims to make driving decisions based on information about the vehicle’s environment. Navigation-based autonomous driving in urban scenarios has more complex scenarios than in relatively simple scenarios such as highways and parking lots, and is a task that still needs to be explored over time. Imitation learning models based on supervised learning methods are limited by the amount of expert data collected. Models based on reinforcement learning methods are able to interact with the environment, but are data inefficient and require a lot of exploration to learn effective policy. We propose a method that combines imitation learning with reinforcement learning enabling agent to achieve a higher success rate in urban autonomous driving navigation scenarios. To solve the problem of inefficient reinforcement learning data, our method decomposes the action space into low-level action space and high-level actin space, where low-level action space is multiple pre-trained imitation learning action space is a combination of several pre-trained imitation learning action spaces based on different control signals (i.e., follow, straight, turn right, turn left). High-level action space includes different control signals, the agent executes a specific imitation learning policy by selecting control signals from the high-level action space through a DQN-based reinforcement learning approach. Moreover, we propose a new reward for high level action selection. Experiments on the CARLA driving benchmark demonstrate that our approach outperforms both imitation learning methods and reinforcement learning methods on a variety of navigation-based driving tasks.
自动驾驶技术旨在根据车辆所处环境的信息做出驾驶决策。与高速公路和停车场等相对简单的场景相比,城市场景中基于导航的自动驾驶场景更为复杂,这是一项仍需长期探索的任务。基于监督学习方法的模仿学习模型受到专家数据收集量的限制。基于强化学习方法的模型能够与环境交互,但数据效率低下,需要大量的探索才能学习到有效的策略。我们提出了一种将模仿学习与强化学习相结合的方法,使智能体在城市自动驾驶导航场景中获得更高的成功率。为了解决强化学习数据效率低下的问题,我们的方法将动作空间分解为低级动作空间和高级动作空间,其中低级动作空间是多个预训练的模仿学习动作空间,是基于不同控制信号(即跟随、直行、右转、左转)的多个预训练的模仿学习动作空间的组合。高级动作空间包含不同的控制信号,智能体通过基于dqn的强化学习方法,从高级动作空间中选择控制信号,执行特定的模仿学习策略。此外,我们提出了一个新的奖励高层次的行动选择。在CARLA驾驶基准上的实验表明,我们的方法在各种基于导航的驾驶任务上优于模仿学习方法和强化学习方法。
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引用次数: 4
Botnet Detection Based on Flow Summary and Graph Sampling with Machine Learning 基于流量汇总和图采样的机器学习僵尸网络检测
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00068
Chun Long, Xisheng Xiao, Wei Wan, Jing Zhao, Jinxia Wei, Guanyao Du
With the development of botnets, detecting and preventing botnet attacks has become an important task of network security research. Existing works rarely consider timing patterns in botnets, and thus are not effective in realistic botnet detection, nor can they detect unknown botnets. To deal with these problems, this paper proposes a flow summary and graph sampling based botnet detection method using machine learning algorithms. Firstly, the network flow data is aggregated according to the source host IPs, and the flow summary records are generated within a duration of time window. Meanwhile, we use graph sampling technology to obtain a subset of entire graph, obtaining 4 graph features which are added to the flow summary records. Afterwards, decision tree, random forest and XGBoost machine learning classification models are built to validate the performance of our method. The experimental results on the Bot- IoT and CTU-13 datasets show that the method we proposed can effectively detect botnet traffic and unknown botnets.
随着僵尸网络的发展,检测和防范僵尸网络攻击已成为网络安全研究的一项重要任务。现有的研究很少考虑僵尸网络的时间模式,因此在现实的僵尸网络检测中效果不佳,也无法检测到未知的僵尸网络。为了解决这些问题,本文提出了一种利用机器学习算法的基于流汇总和图采样的僵尸网络检测方法。首先,根据源主机ip对网络流量数据进行聚合,生成一定时间窗口内的流量汇总记录。同时,我们利用图采样技术获取整个图的子集,得到4个图特征,并将其添加到流汇总记录中。然后,建立决策树、随机森林和XGBoost机器学习分类模型来验证我们的方法的性能。在Bot- IoT和CTU-13数据集上的实验结果表明,我们提出的方法可以有效地检测僵尸网络流量和未知僵尸网络。
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引用次数: 1
The Practice of Computer Graphic Illustration Art in Commercial Design 计算机图形插画艺术在商业设计中的实践
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00087
Jing Liu
With the continuous improvement of China’s social and economic level, people’s aesthetic ability is also constantly improving. At present, the full application of computer graphics and illustration art in the process of commercial design is positively helpful to improve the level of commercial design. In order to fully grasp the practical points of computer graphic illustration art in commercial design, we need to conduct research from the main role of computer graphic illustration art in the process of commercial design. At the same time, we want to analyze the challenges faced by computer graphic illustration art in the business process, and explore the practical points of illustration art in commercial design. Only in this way can the creative level of computer graphic illustration art be improved and the long-term development of the illustration art market can be promoted.
随着中国社会经济水平的不断提高,人们的审美能力也在不断提高。目前,在商业设计过程中充分运用计算机图形学和插画艺术,对提高商业设计水平有积极的帮助。为了充分把握计算机图形插图艺术在商业设计中的实用要点,我们需要从计算机图形插图艺术在商业设计过程中的主要作用进行研究。同时,我们想要分析计算机图形插画艺术在商业流程中所面临的挑战,探索插画艺术在商业设计中的实用点。只有这样,才能提高计算机图形插画艺术的创作水平,促进插画艺术市场的长远发展。
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引用次数: 1
A wo-dimensional research framework for analysing dark side of AI 一个分析人工智能阴暗面的二维研究框架
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00064
Lifan Zeng, Junjie Wu
Gradual adoption of Artificial intelligence (AI) and its potential impact have received considerable attention in the business and societal landscape. Grounded on extensive literature review, this paper proposes a two-dimensional framework to address the dark side of emergent AI technology applications. This work not only enhance our understanding of the technological rhetoric-reality gap between high expectations and potential negative issues of AI but also highlight the areas that future research might focus on.
人工智能(AI)的逐步采用及其潜在影响在商业和社会领域受到了相当大的关注。在大量文献综述的基础上,本文提出了一个二维框架来解决新兴人工智能技术应用的阴暗面。这项工作不仅增强了我们对人工智能的高期望和潜在负面问题之间的技术修辞与现实差距的理解,而且还突出了未来研究可能关注的领域。
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引用次数: 0
Research on Urban Audio Classification Based on Residual Neural Network 基于残差神经网络的城市音频分类研究
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00047
Duling Xv, Li Yang
In recent years, audio classification has been extensively studied, and the classification of urban sounds has great application requirements in criminal investigation and environmental protection. In this paper, a multi-feature hybrid description method is used to classify target city sounds with a multi-layer residual network structure. Firstly, a plurality of feature extraction results were compared with a conventional single feature. Secondly, different network models are studied, and their performance under different characteristics is tested and compared. Finally, comparing Resnet and multi-layer perceptrons, it is found that the Resnet50v2 method under mixed features has a better classification effect on the Ubansound8k data set, reaching 90.7%.
近年来,声音分类得到了广泛的研究,城市声音分类在刑事侦查和环境保护方面有很大的应用要求。本文采用多特征混合描述方法对具有多层残差网络结构的目标城市声音进行分类。首先,将多个特征提取结果与常规的单个特征进行比较。其次,研究了不同的网络模型,并对其在不同特征下的性能进行了测试和比较。最后,对比Resnet和多层感知器,发现混合特征下的Resnet50v2方法对Ubansound8k数据集的分类效果更好,达到90.7%。
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引用次数: 0
Key Node Detection in Financial Complex Network 金融复杂网络中的关键节点检测
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00077
Chenglong Wang, Le Kang, Zhihong Zhang, Zhaohui Zhang, Xiaofeng Wang
With the development of the financial sector, the growing complexity of financial transaction network, effectively identify a trading network of key trader has a important significance. Trading network abstraction for complex networks, traders abstraction for nodes, trandings between traders abstraction for the edges. The method of degree centrality, clustering coefficient, betweenness centrality, closeness centrality and the like is not sufficient to evaluate the importance of the node. Therefore, we propose a novel algorithm to evaluate the importance of nodes in undirected and unweighted network. We take the degree centrality and clustering coefficient of the nodes as the evaluation indicators, and combine the importance contribution of the nearest and the next nearest nodes. Through normalization and averaging, the benchmark ranking of node importance is obtained, which comprehensively considers the global and local features of the nodes. We used the real trading network data from Zhengzhou Commodity Exchange (ZCE) to conduct three comparative experiments and analyses. The experiment results show that our method has achieved better results, and can effectively identify key trading traders in ZCE.
随着金融业的发展,金融交易网络的日益复杂,有效识别交易网络中的关键交易者具有重要意义。交易网络抽象面向复杂网络,交易者抽象面向节点,交易者间交易抽象面向边缘。度中心性、聚类系数、中间中心性、接近中心性等方法不足以评价节点的重要性。因此,我们提出了一种新的算法来评估无向无权网络中节点的重要性。我们以节点的度中心性和聚类系数作为评价指标,并结合最近节点和次最近节点的重要贡献。通过归一化和平均,得到综合考虑节点全局和局部特征的节点重要性基准排序。我们使用郑州商品交易所(ZCE)的真实交易网络数据进行了三个对比实验和分析。实验结果表明,我们的方法取得了较好的效果,可以有效地识别出ZCE中的关键交易交易者。
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引用次数: 0
Design of Monitoring System for Height Limiting Device Based on Acceleration Sensor 基于加速度传感器的限高装置监控系统设计
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00066
Tianqi Li, Shifeng Yang, Zhidong Guo, Zhe Sheng
In view of the actual use of height limiting devices at home and abroad and the requirements of relevant standards, the system uses three-axis acceleration sensors and high-definition network cameras as the state detection devices of height limiting devices. When an accident occurs when an ultra-high vehicle hits height limiting equipment, the acceleration sensors collect the spatial position information and acceleration information of height limiting devices and transmit them to the cloud through NB-Iot. At the same time, the 4g network camera is ordered to collect pictures and video information within the specified time and transmit them to the cloud server, and all data in the cloud server are obtained at the management terminal, which is convenient for comprehensive analysis of accident information and unified command and dispatch. Experiment show that that system can stably monitor the health status of height limiting device, and give timely and accurate remote alarm in case of super-high accident, It is a safe and effective monitoring system for height limiting devices.
鉴于国内外限高装置的实际使用情况及相关标准的要求,本系统采用三轴加速度传感器和高清网络摄像机作为限高装置的状态检测装置。当超高车辆撞上限高设备发生事故时,加速度传感器采集限高设备的空间位置信息和加速度信息,并通过NB-Iot传输到云端。同时,命令4g网络摄像机采集规定时间内的图片和视频信息并传输到云服务器,云服务器中的所有数据在管理终端获取,便于对事故信息进行综合分析和统一指挥调度。实验表明,该系统能够稳定地监测限高装置的健康状态,并在发生超高事故时及时准确地远程报警,是一种安全有效的限高装置监控系统。
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引用次数: 1
Topological structure optimization algorithm of military communication network based on genetic algorithm 基于遗传算法的军用通信网络拓扑结构优化算法
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00010
Zhiang Xu, Zhiqiang Fan
With the development of information technology and the transformation of war concepts, the traditional combat method centered on weapons and equipment platforms has gradually transformed into network-centric information operations, among which military communication networks are the basis of military command and control in information warfare. Firstly, this article analyzes the basic characteristics and formation mechanism of the military communication network model, and then analyzes the performance indicators of the communication network model from the perspective of information flow integrity, information timeliness, and network anti-destructive ability. Secondly, this article obtains the optimization goal of the military communication network. And starting from the network topology, an innovative genetic algorithm is designed to adapt to the network model. Finally, this paper compares the optimization effects of genetic algorithm and other heuristic algorithms through a series of simulation experiments. The experiment proves that the improved genetic algorithm performs best in the optimization effect. This method provides theoretical guidance for the optimization of the topological structure of military communication networks.
随着信息技术的发展和战争观念的转变,传统的以武器装备平台为中心的作战方式逐渐转变为以网络为中心的信息作战,其中军事通信网络是信息化战争中军事指挥控制的基础。本文首先分析了军事通信网络模型的基本特征和形成机理,然后从信息流完整性、信息时效性和网络抗破坏能力三个方面分析了军事通信网络模型的性能指标。其次,本文给出了军用通信网络的优化目标。并从网络拓扑结构出发,设计了一种创新的遗传算法来适应网络模型。最后,通过一系列的仿真实验,比较了遗传算法和其他启发式算法的优化效果。实验证明,改进的遗传算法在优化效果上是最好的。该方法为军用通信网络拓扑结构的优化提供了理论指导。
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引用次数: 0
UUV multi-task route planning under obstacles constrait 障碍物约束下UUV多任务航路规划
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00096
Cao Xin, Zhou Yuan, Chen Yi, Mai Weiqiang
Aiming at the path planning problem of UUV under obstacles constrait, this paper proposes a simple and feasible algorithm. The optimal path plan is obtained through the tangent theory based on the principle of minimum turning radius, and a detailed mathematical proof is given. The UUV multi-task route planning problem is transformed into a TSP model solution through the continuous Hopfield neural net-work. The simulation results show that the method can quickly and accurately solve UUV multi tasking route planning problem.
针对障碍物约束下UUV的路径规划问题,提出了一种简单可行的算法。基于最小转弯半径原则,利用切线理论得到了最优路径规划,并给出了详细的数学证明。通过连续Hopfield神经网络将UUV多任务路径规划问题转化为TSP模型解。仿真结果表明,该方法能够快速、准确地解决UUV多任务路径规划问题。
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引用次数: 0
期刊
2021 International Conference on Computer Engineering and Application (ICCEA)
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