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Machine learning techniques in Internet of Things 物联网中的机器学习技术
Pub Date : 2023-03-16 DOI: 10.1117/12.2671334
Siqi Bai, Xinyue Cui
The Internet of Things (IoT) and Machine Learning (ML) are two very hot technologies these days. IoT requires a lot of data processing, and ML is a useful means of processing data. Therefore, the combination of IoT and ML has become a very promising research direction. This paper is a investigation of the combination of IoT and ML. It first introduces the development history of IoT and ML, then introduces some achievements that have emerged in the field of ML and IoT combination. After that, the paper refers some ML technologies which will play important roles in IoT. In this process, this paper also proposes a scheme to improve the accuracy of YOLO algorithm by identifying picture groups. Finally, the paper discusses the existing problems and future development directions of the combination of IoT and ML and provides some references and suggestions for scholars who study the combination of ML and IoT technology.
物联网(IoT)和机器学习(ML)是目前非常热门的两项技术。物联网需要大量的数据处理,而机器学习是处理数据的有用手段。因此,物联网与机器学习的结合已经成为一个非常有前途的研究方向。本文是对物联网和机器学习结合的研究,首先介绍了物联网和机器学习的发展历史,然后介绍了在物联网和机器学习结合领域已经出现的一些成果。然后,本文介绍了一些将在物联网中发挥重要作用的机器学习技术。在此过程中,本文还提出了一种通过识别图片组来提高YOLO算法准确率的方案。最后讨论了IoT与ML结合存在的问题和未来的发展方向,为研究ML与IoT技术结合的学者提供了一些参考和建议。
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引用次数: 0
Multi-time granularity subway line network short-time OD passenger flow forecasting based on LightGBM model 基于LightGBM模型的多时间粒度地铁线路网络短时OD客流预测
Pub Date : 2023-03-16 DOI: 10.1117/12.2672715
Heng Zhang, Wei Xiao, MIngjiao Zhang
In order to accurately obtain the short-time OD passenger flow distribution of the subway line network, so as to efficiently coordinate the transportation capacity and passenger demand, a multi-time granularity subway line network short-time OD passenger flow prediction model based on LightGBM was constructed by combining the idea of ensemble learning. The model uses the subway automatic ticket sales and inspection data to analyze the temporal and spatial distribution characteristics of OD passenger flow on the line network, introduces a variety of temporal and spatial influencing factors to train and predict the data of the whole network, and studies the relationship between the prediction accuracy of the subway line network OD passenger flow and the time granularity. relationship between. Taking the Suzhou subway as an example, the results show that: compared with other models, the model can not only effectively reduce the prediction error, but also can effectively fit the peak passenger flow, and improve the accuracy of short-time OD passenger flow prediction of the subway network.
该模型利用地铁自动售票和检票数据分析线路网络OD客流的时空分布特征,引入多种时空影响因素对全网数据进行训练和预测,研究地铁线路网络OD客流预测精度与时间粒度的关系。之间的关系。以苏州地铁为例,结果表明:与其他模型相比,该模型不仅能有效降低预测误差,而且能有效拟合高峰客流,提高地铁网络短时OD客流预测的准确性。
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引用次数: 0
Optimization method of aluminum electrolysis current efficiency based on LightGBM-TPE 基于LightGBM-TPE的铝电解电流效率优化方法
Pub Date : 2023-03-16 DOI: 10.1117/12.2671649
Ying-lan Fang, Chenyang Liu, Zhenliang Li
The influencing factors of aluminum electrolysis production process are complex, and current efficiency is an important evaluation index. In order to study the influence of various parameters on the current efficiency in the aluminum electrolysis production process, a LightGBM-TPE current efficiency optimization model was established in this paper. First, the production data is preprocessed, and the industrial parameters are fitted using the LightGBM prediction model. Then, to further increase the model's prediction accuracy, the TPE optimization method is used to optimize the LightGBM hyperparameters. Finally, the optimization of current efficiency is realized through Optuna combined with TPE Bayesian optimization algorithm. The experimental results demonstrate that the model is capable of accurately identifying the realization conditions and process parameters of high current efficiency in the production process, as well as providing a parameter control foundation for the effective operation of the actual electrolytic aluminum production, ultimately achieving the goal of power consumption reduction.
铝电解生产过程的影响因素复杂,电流效率是一个重要的评价指标。为了研究铝电解生产过程中各参数对电流效率的影响,本文建立了LightGBM-TPE电流效率优化模型。首先,对生产数据进行预处理,并采用LightGBM预测模型拟合工业参数。然后,为了进一步提高模型的预测精度,采用TPE优化方法对LightGBM超参数进行优化。最后,通过Optuna结合TPE贝叶斯优化算法实现电流效率的优化。实验结果表明,该模型能够准确识别生产过程中高电流效率的实现条件和工艺参数,为电解铝实际生产的有效运行提供参数控制基础,最终达到降低能耗的目的。
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引用次数: 0
Information three-dimensional display design of video surveillance command management system based on GIS technology 基于GIS技术的视频监控指挥管理系统信息三维显示设计
Pub Date : 2023-03-16 DOI: 10.1117/12.2672131
Du Sen, Ren Zheng, Liang Haiqu
The video surveillance command and management system based on GIS technology is studied, which enables users to interact with real scenes, and can effectively solve the spatial difference in multi-point surveillance. The system consists of two parts: hardware and software design. The hardware design includes intelligent monitoring front-end , transmission equipment and background monitoring center; the software design consists of GIS visualization display, scene fusion simulation and stereoscopic display. Through the test of the system, the demand for three-dimensional display of command and management information of the 3D GIS intelligent video surveillance system integrated with multiple scenes has been realized.
研究了基于GIS技术的视频监控指挥管理系统,实现用户与真实场景的交互,有效解决多点监控中的空间差异。系统由硬件设计和软件设计两部分组成。硬件设计包括智能监控前端、传输设备和后台监控中心;软件设计包括GIS可视化显示、场景融合仿真和立体显示。通过系统的测试,实现了多场景集成的三维GIS智能视频监控系统对指挥管理信息的三维显示需求。
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引用次数: 1
Lightweight intelligent vehicle target detection algorithm based on Yolov4 基于Yolov4的轻型智能车辆目标检测算法
Pub Date : 2023-03-16 DOI: 10.1117/12.2671289
Youhua Peng, Peng Zhang, Zheng Fang, D. Xing, Zhijun Guo, Shuaijie Zheng
Aiming at the complex and changeable driving scenarios of intelligent vehicles and the need to quickly and accurately identify obstacles, an improved YOLOV4 algorithm is proposed. To limit the number of neural network parameters, the CSP-darknet53 backbone of the original YOLOV4 was replaced with the Ghostnet backbone. In addition, to improve the neural network's accuracy, a lightweight attention mechanism ECA is added to the three effective feature layers generated by the backbone using residual block connections. Experiments have shown that the improved YOLOV4 has a 2.8% increase in mAP compared to the original YOLOV4. Without changing the accuracy, The network model's memory size is lowered by 39%, as well as a 50% improvement in detecting speed. Therefore, the improved YOLOV4 accuracy and real-time performance are better than the original network detection, providing a strong guarantee for intelligent vehicle obstacle avoidance.
针对智能汽车复杂多变的驾驶场景以及快速准确识别障碍物的需求,提出了一种改进的YOLOV4算法。为了限制神经网络参数的数量,将原有YOLOV4的CSP-darknet53骨干网替换为Ghostnet骨干网。此外,为了提高神经网络的准确性,在主干利用剩余块连接生成的三个有效特征层中加入了轻量级的注意机制ECA。实验表明,改进的YOLOV4在mAP上比原来的YOLOV4提高了2.8%。在不改变准确率的情况下,网络模型的内存大小降低了39%,检测速度提高了50%。因此,改进后的YOLOV4精度和实时性优于原有的网络检测,为智能车辆避障提供了有力保障。
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引用次数: 0
Data center information Atte encrypributtion method based on hash algorithm 基于哈希算法的数据中心信息加密方法
Pub Date : 2023-03-16 DOI: 10.1117/12.2672772
JieJuan Guo, Zhongying Zhao
As the key basic supporting platform of electric power enterprises, the data center often has internal attribute revocation, which seriously affects the efficiency of information attribute encryption. This paper proposes a method of information attribute encryption for data centers based on a hash algorithm. Then, update that data platform information, ensuring that the encryption method has low overhead and high efficiency. Extract the attribute of the data platform information based on a hash algorithm and encrypt the attribute of the information. The simulation results show that the proposed method occupies only 24% of the task process. The encryption time is relatively short, which verifies that the method has low overhead and high efficiency in the process of information attribute encryption and has a certain contribution value to ensure the information security of the data center.
数据中心作为电力企业关键的基础支撑平台,往往存在内部属性撤销的问题,严重影响信息属性加密的效率。提出了一种基于哈希算法的数据中心信息属性加密方法。然后,更新该数据平台信息,确保加密方法具有低开销和高效率。基于哈希算法提取数据平台信息的属性,并对信息属性进行加密。仿真结果表明,该方法仅占任务过程的24%。加密时间相对较短,验证了该方法在信息属性加密过程中开销低、效率高,对保证数据中心的信息安全有一定的贡献价值。
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引用次数: 0
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