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2022 4th International Conference on Frontiers Technology of Information and Computer (ICFTIC)最新文献

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Research on Cache Algorithm for Internet of Vehicles Based on Edge Computing 基于边缘计算的车联网缓存算法研究
Pub Date : 2022-12-02 DOI: 10.1109/ICFTIC57696.2022.10075252
Xuechun Wang, Guifen. Chen
A huge number of computational resource-intensive applications and other content delivery services have evolved with the arrival of the 5G era and the adoption of Internet-connected devices, and the data in the Internet of Vehicles has exhibited accelerated growth. To improve the service performance of telematics, caching content at the network edge is an effective solution to reduce content delivery latency. In this paper, we propose an edge caching scheme based on content popularity with cooperation between base stations, roadside units(RSUs) and vehicles, and use an improved sparrow search algorithm(PSSA)for optimization. Simulations show that the proposed caching scheme has advantages in terms of hit rate improvement and delay reduction.
随着5G时代的到来和物联网设备的普及,大量计算资源密集型应用和其他内容交付服务应运而生,车联网数据呈现加速增长态势。为了提高远程信息处理的服务性能,在网络边缘缓存内容是减少内容传递延迟的有效解决方案。在本文中,我们提出了一种基于内容流行度的边缘缓存方案,在基站、路边单元(rsu)和车辆之间进行合作,并使用改进的麻雀搜索算法(PSSA)进行优化。仿真结果表明,所提出的缓存方案在提高命中率和降低延迟方面具有优势。
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引用次数: 0
Research on human posture recognition based on multi-feature fusion chunk sampling particle filtering algorithm 基于多特征融合块采样粒子滤波算法的人体姿态识别研究
Pub Date : 2022-12-02 DOI: 10.1109/ICFTIC57696.2022.10075263
Yufei Zhao
As a developing research direction in the field of computer vision, human posture recognition(HPR) involves many related technologies such as pattern recognition, artificial intelligence, image processing and machine vision. This paper focuses on the application of multi feature fusion(MFF) and block sampling(BS) particle filter algorithm(PFA) in HPR, and briefly analyzes the design of human posture data acquisition terminal, the analysis and extraction of human contour features, and the analysis and extraction of stride features; This paper discusses the MFF and BS PFA, and applies it to HPR. Through the statistical experiments of recognition rate(RR) and sensitivity of virtual reality actions, the effectiveness of MFF and BS PFA applied to HPR is verified.
人体姿态识别(HPR)是计算机视觉领域的一个发展方向,涉及到模式识别、人工智能、图像处理和机器视觉等诸多相关技术。重点研究了多特征融合(MFF)和块采样(BS)粒子滤波算法(PFA)在HPR中的应用,简要分析了人体姿态数据采集终端的设计、人体轮廓特征的分析与提取、步幅特征的分析与提取;本文讨论了MFF和BS PFA,并将其应用于HPR。通过对虚拟现实动作识别率(RR)和灵敏度的统计实验,验证了MFF和BS PFA在HPR中的有效性。
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引用次数: 0
Mutually Distilled Sparse RCNN for Few-Shot Object Detection 基于互提取稀疏RCNN的少镜头目标检测
Pub Date : 2022-12-02 DOI: 10.1109/ICFTIC57696.2022.10075197
Xiangtao Jiang, Hancheng Yu, Yuhao Lv, Xin Zhu
Few-shot object detection(FSOD), which conducted to detect novel object based on massive base class samples and few novel classes samples, has gained extensive research interest from academic and industry. Major existing FSOD approaches basically use Faster RCNN(FRCNN) as basic framework. However, the RPN of the FRCNN architecture generates redundant anchor frames, which leads to slow training and consume massive computing resources. In this paper, we choose Sparse RCNN which has a fixed number of anchor frames and good performances in object detection the basic framework. Traditional FSOD training methods customarily use the method of freezing backbone or deleting the head classification branches, which will lead to overfitting of novel class and perform badly on base classes. To solve this problem, we introduced the mutual distillation layer and IOU Mask module in the head and loss of Sparse RCNN respectively. The mutual distillation layer is a multihead structure, which can distill the base class features when training new class samples, and distill the new class features when training base class samples. Experiments on multiple benchmarks show that our framework is significantly superior to other existing methods, and has faster detection speed.
摘要基于大量的基类样本和少量的新类样本来检测新目标的“少射目标检测”(few -shot object detection, FSOD)已经引起了学术界和工业界的广泛研究兴趣。现有的主要FSOD方法基本都是使用Faster RCNN(FRCNN)作为基本框架。然而,FRCNN架构的RPN会产生冗余的锚帧,导致训练速度慢,消耗大量的计算资源。在本文中,我们选择锚帧数量固定且在目标检测方面性能良好的稀疏RCNN作为基本框架。传统的FSOD训练方法通常采用冻结主干或删除头部分类分支的方法,这会导致新类的过拟合,对基类的训练效果不佳。为了解决这一问题,我们分别在稀疏RCNN的head和loss中引入了互蒸馏层和IOU Mask模块。互蒸馏层是多头结构,既可以在训练新类样本时提取基类特征,又可以在训练基类样本时提取新类特征。在多个基准测试上的实验表明,我们的框架明显优于其他现有方法,并且具有更快的检测速度。
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引用次数: 0
A Meta-Learning Framework for Predicting Power Digital Equipment Defect Texts via Hypergraph Modeling 基于超图建模的电力数字设备缺陷文本预测元学习框架
Pub Date : 2022-12-02 DOI: 10.1109/ICFTIC57696.2022.10075278
Long Chen, Ling Luo, Xiaoyan Wang, Jian Tang, Xiao Deng
Power digital equipment defect text classification, which is often used as a guide for defect elimination or fault handling, has attracted the attention of researchers. Although various methods have been proposed, the obtained results are undesirable due to the requirement of a large number of labeled training samples of existing methods. However, the annotating process is typically costly and expert knowledge required in electrical field. In order to solve this problem, this paper uses meta-learning to overcome the problem of small sample size and difficulty of scene migration, which is a way to acquire “learning to learn” and learn new tasks quickly based on the knowledge already acquired. Therefore, we model the task of power digital equipment defect texts classification under a Meta-Learning framework in this paper. Specifically, we utilize a hypergraph-based document modeling to enrich the representation learning for entities, and improve the derived prototypes accordingly by prototype network. In addition, the module of relation network is introduced to train a more meaningful distance function for detect type prediction. Comprehensive experiments are conducted on real-world datasets, and the results demonstrate that the proposed framework outperforms existing methods according to F1-score.
电力数字设备缺陷文本分类,经常被用作缺陷排除或故障处理的指导,引起了研究人员的关注。虽然提出了各种方法,但由于现有方法需要大量标记的训练样本,得到的结果并不理想。然而,注释过程通常是昂贵的,并且需要电气领域的专业知识。为了解决这一问题,本文采用元学习的方法来克服样本规模小和场景迁移困难的问题,这是一种获得“学会学习”的方法,可以在已有知识的基础上快速学习新的任务。因此,我们在元学习框架下对电力数字设备缺陷文本分类任务进行建模。具体而言,我们利用基于超图的文档建模来丰富实体的表示学习,并通过原型网络对衍生原型进行相应的改进。此外,引入关系网络模块训练更有意义的距离函数用于检测类型预测。在实际数据集上进行了综合实验,结果表明,本文提出的框架在F1-score方面优于现有的方法。
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引用次数: 0
Design and Implement for Intelligent Four-legged Robot Dog SPRESENSE -Base 智能四足机器狗SPRESENSE -Base的设计与实现
Pub Date : 2022-12-02 DOI: 10.1109/ICFTIC57696.2022.10075314
Xiaona Kang, S. Shen
This paper mainly describe the design and implementation of the intelligent four-legged robot dog SPRESENSE-base. It tries to simulate the real dog's behavior. It can walk, run, talk with you, and active track. This article take it as example to study how to design and implement the intelligent four-legged robot dog. It use the self-developed Sobot bionic quadruped robot control system; SpotMicroAI open source model structure was used to construct the hardware model; Sony SPRESENSE development board is used for the main board; Using gyroscope for detecting gait; Using ultrasonic wave for detecting obstacles ahead; using laser radar for detecting the environment around; using voice control module for voice recognition; Using image recognition processing technology to realize the active track. After more than one year of research and development, we have realized the mechanical model of the four-legged robot dog; it can follow the command to walk, trot and other gaits; it can automatically avoid obstacles ahead. The system also has the characteristics of high execution efficiency, portability, compatibility, reliability, practicability and easy expansion because of using C/C++ development language.
本文主要描述了智能四足机器狗SPRESENSE-base的设计与实现。它试图模拟真狗的行为。它可以走路,跑步,与你交谈,并积极跟踪。本文以其为例,研究了智能四足机器狗的设计与实现。采用自主研发的Sobot仿生四足机器人控制系统;采用SpotMicroAI开源模型结构构建硬件模型;主板采用索尼SPRESENSE开发板;利用陀螺仪检测步态;利用超声波探测前方障碍物;利用激光雷达探测周围环境;使用语音控制模块进行语音识别;采用图像识别处理技术实现主动跟踪。经过一年多的研发,我们实现了四足机器狗的力学模型;能按照指令行走、小跑等步态;它可以自动避开前方的障碍物。系统采用C/ c++开发语言,具有执行效率高、可移植性好、兼容性好、可靠性好、实用性强、易于扩展等特点。
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引用次数: 0
Analysis of the Variability of EMC Laboratory Proficiency Testing Data Processing Methods on the Evaluation Results EMC实验室能力测试数据处理方法对评估结果的可变性分析
Pub Date : 2022-12-02 DOI: 10.1109/ICFTIC57696.2022.10075152
X. Chen
Proficiency testing (PT) is one of the most important ways to determine a laboratory's testing and calibration capability. Establishing an efficient and accurate PT evaluation program can provide the right guidance for laboratory supervision. The article demonstrates the differential impact of different data processing methods on the evaluation results, using the different ways of handling data measurement units of test results and data processing software as analysis points. The methodological recommendations for the correct selection of data measurement units are presented, and the differences in the evaluation results of data processing software using different quartile calculation algorithms are given. It provides a scientific basis for EMC laboratory capability evaluation and technical references for laboratory capability evaluation by appropriate supervision and management departments.
能力测试(PT)是确定实验室测试和校准能力的最重要方法之一。建立高效、准确的PT评价方案可以为实验室监管提供正确的指导。本文以试验结果的不同数据处理方式、测量单元和数据处理软件为分析点,论证了不同的数据处理方式对评价结果的差异影响。提出了正确选择数据计量单位的方法学建议,并给出了采用不同四分位数计算算法的数据处理软件评价结果的差异。为EMC实验室能力评估提供了科学依据,为相应的监督管理部门进行实验室能力评估提供了技术参考。
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引用次数: 0
Dynamic access control model based on user access behavior in the Internet of Things environment 物联网环境下基于用户访问行为的动态访问控制模型
Pub Date : 2022-12-02 DOI: 10.1109/ICFTIC57696.2022.10075243
Xinyan Zhang
Aiming at the problem that the trust-based access control model cannot dynamically adapt to the changes of the network environment in the Internet of Things (IoT) environment, a dynamic access control model based on data security is proposed. Firstly, the method of association rules is used to analyze the user's historical access behavior, extract the user's frequent access path and create an access behavior database. Then, based on real-time access behavior, the real-time status information of users is obtained, and a spatiotemporal sensitivity credibility evaluation module is constructed by using “spatiotemporal slicing”. Finally, the dynamic access authorization management module and the access control rule module are combined to realize dynamic access control based on user access behavior. Experiments show that the proposed model has higher security than the traditional trust-based access control model.
针对物联网环境下基于信任的访问控制模型不能动态适应网络环境变化的问题,提出了一种基于数据安全的动态访问控制模型。首先,利用关联规则的方法分析用户的历史访问行为,提取用户的频繁访问路径,建立访问行为数据库;然后,基于实时访问行为,获取用户实时状态信息,采用“时空切片”方法构建时空灵敏度可信度评估模块;最后,结合动态访问授权管理模块和访问控制规则模块,实现基于用户访问行为的动态访问控制。实验表明,该模型比传统的基于信任的访问控制模型具有更高的安全性。
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引用次数: 0
Design of trajectory planning and 3D modeling for crane inspection based on UAV 基于无人机的起重机检测轨迹规划与三维建模设计
Pub Date : 2022-12-02 DOI: 10.1109/ICFTIC57696.2022.10075309
Qingcheng Chen
This paper designs an efficient inspection method of trajectory planning and 3D modeling for crane based on Unmanned Aerial Vehicle (UAV). The working environment of crane is harsh and risky. On the other side, the UAV system has a good convenience to avoid obstacle and fly over dangerous environment. the application of the remote sensing mapping technology of UAV in crane has been a potential future development, which will greatly reduce the workload of manual inspection and improve work efficiency, even can complete the project measurement in some inaccessible location. With this Compounding technology of trajectory planning and 3D modeling, it is much easier to find out the defects of steel structure in crane, such as weld and crack, etc. the 3D modeling process for unstructured working environment will be conducive to realize the intelligent inspection functions of UAV, including autonomous flight, trajectory planning, and obstacle avoidance. Finally a field test results show this approach can promote the safety and work efficiency of inspection in crane.
本文设计了一种基于无人机的起重机轨迹规划和三维建模的高效检测方法。起重机的工作环境恶劣、危险。另一方面,该无人机系统对于避障和飞越危险环境具有良好的便利性。无人机遥感测图技术在起重机上的应用已经是一个潜在的未来发展方向,它将大大减少人工检测的工作量,提高工作效率,甚至可以在一些无法到达的位置完成工程测量。将这种轨迹规划与三维建模相结合的技术,可以更容易地发现起重机钢结构的缺陷,如焊缝、裂纹等,非结构化工作环境的三维建模过程将有利于实现无人机的智能检测功能,包括自主飞行、轨迹规划、避障等。现场试验结果表明,该方法能提高起重机检测的安全性和工作效率。
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引用次数: 0
A Malicious PDF File Detection Method Based on Improved Ensemble Learning Stacking 基于改进集成学习叠加的PDF恶意文件检测方法
Pub Date : 2022-12-02 DOI: 10.1109/ICFTIC57696.2022.10075332
Yidan Tang, Jinjin Dong, Yixuan Guo, Yihan Zhou, Feifan Lu, Bo Zhang
A malicious PDF file detection method based on ensemble learning is proposed to address the problem that malicious PDF files are highly concealed and difficult to detect. In order to efficiently identify malicious PDF files that are highly concealed, the detection range of malicious PDF files by machine learning models is improved by combining the conventional features of PDF files with structural features. The recognition module adopts Stacking method of ensemble learning, adds weighting operation to improve the combination performance of multiple base learners, and finds the best combination of base learners and meta learner through experiments. After experiments, NB, RF and DT are selected as the optimal Stacking model base learners and Logistic Regression as the meta learner. the optimal Stacking model achieves 98.70% accuracy on the test set, which is better than Adaboost model and deep learning DNN model.
针对PDF恶意文件隐蔽性高、检测难度大的问题,提出了一种基于集成学习的PDF恶意文件检测方法。为了有效识别高度隐蔽性的恶意PDF文件,将PDF文件的常规特征与结构特征相结合,提高了机器学习模型对恶意PDF文件的检测范围。识别模块采用集成学习的Stacking方法,增加加权运算来提高多个基学习器的组合性能,并通过实验找到基学习器与元学习器的最佳组合。经过实验,选择NB、RF和DT作为最优堆叠模型基础学习器,Logistic回归作为元学习器。最优叠加模型在测试集上的准确率达到98.70%,优于Adaboost模型和深度学习DNN模型。
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引用次数: 0
Research on Network Attack Detection Model Based on BiGRU-Attention 基于BiGRU-Attention的网络攻击检测模型研究
Pub Date : 2022-12-02 DOI: 10.1109/ICFTIC57696.2022.10075310
Weifa Zheng, Peiyu Cheng, Zitao Cai, Yanjun Xiao
The BiGRU model does not consider the weight of features when extracting features. In order to solve this problem, this paper adds the Attention mechanism to the BiGRU hidden layer, uses the feature vector obtained from the BiGRU as the input of the Attention layer, and uses the attention score as the weight of the feature vector, so that the most important features are retained to the greatest extent. In this paper, BiGRU-Attention model is applied to network attack traffic detection, and CIDDS data set is used for model training and testing. Experiments show that BiGRU-Attention model designed in this paper has high accuracy and F1 value.
BiGRU模型在提取特征时没有考虑特征的权重。为了解决这一问题,本文在BiGRU隐藏层中加入了注意力机制,使用从BiGRU获得的特征向量作为注意力层的输入,并使用注意力得分作为特征向量的权重,从而最大程度地保留了最重要的特征。本文将BiGRU-Attention模型应用于网络攻击流量检测,并使用CIDDS数据集进行模型训练和测试。实验表明,本文设计的BiGRU-Attention模型具有较高的准确率和F1值。
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引用次数: 0
期刊
2022 4th International Conference on Frontiers Technology of Information and Computer (ICFTIC)
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