检索结果-内蒙古大学图书馆

2022 3rd International Conference on Electrical, Electronic information and Communication engineering, EEICE 2022

作者： Yang, Quan Zhao, Xuanzhi Zhang, Wen Jin, Wenjun Faculty of Information Engineering and Automation Kunming University of Science and Technology Yunnan Kunming China

In order to address the problem of inconsistent sampling frequency and accuracy of each sensor in multi-sensor data fusion technology, the algorithm of Gaussian Process Regression (GPR) is proposed for time alignment, and in the scenario where the target motion model is uniform linear motion and uniform turning motion, the simulation is compared and analyzed respectively. The simulation results show that the proposed algorithm can effectively improve the accuracy of time synchronization. © Published under licence by IOP Publishing Ltd.

关键词： Gaussian distribution

来源：评论

学校读者我要写书评

暂无评论

Solving open vehicle problem with time window by hybrid column generation algorithm

引用

Journal of Systems engineering and Electronics 2022年第4期33卷 997-1009页

作者： YU Naikang QIAN Bin HU Rong CHEN Yuwang WANG Ling School of Mechanical and Electrical Engineering Kunming University of Science and TechnologyKunming 650500China School of Information Engineering and Automation Kunming University of Science and TechnologyKunming 650500China Yunnan Key Laboratory of Artificial Intelligence Kunming University of Science and TechnologyKunming 650500China Alliance Manchester Business School University of ManchesterManchester M139SSU.K. Department of Automation Tsinghua UniversityBeijing 100084China

This paper addresses the open vehicle routing problem with time window(OVRPTW), where each vehicle does not need to return to the depot after completing the delivery *** optimization objective is to minimize the total distance. This problem exists widely in real-life logistics distribution *** propose a hybrid column generation algorithm(HCGA) for the OVRPTW, embedding both exact algorithm and metaheuristic. In HCGA, a label setting algorithm and an intelligent algorithm are designed to select columns from small and large subproblems, respectively. Moreover, a branch strategy is devised to generate the final feasible solution for the OVRPTW. The computational results show that the proposed algorithm has faster speed and can obtain the approximate optimal solution of the problem with 100 customers in a reasonable time.

关键词： open vehicle routing problem with time window(OVRPTW) hybrid column generation algorithm(HCGA) mixed integer programming label setting algorithm

来源：评论

学校读者我要写书评

暂无评论

A DV-Hop Localization Algorithm Using Classifying Average Hop Distance in Wireless Sensor Networks 22

A DV-Hop Localization Algorithm Using Classifying Average Ho...

引用

5th International Conference on Computer science and Software engineering, CSSE 2022

作者： Yang, Di Zhao, Xuanzhi Zhang, Wen Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming650500 China

ISBN: (纸本)9781450397780

DV-Hop localization algorithm contains a straightforward structure and is widely employed in wireless sensor network node localization. The DV-Hop localization algorithm has a fundamental error within the average hop distance calculation. Thus this paper proposes a DV-Hop localization algorithm using classifying average hop distance(CADV-Hop algorithm). We provide a CADV-Hop algorithm to calculate the typical hop distance by categorizing utterly different hop counts. The simulation results show that the improved algorithm will improve the localization accuracy compared to the DV-Hop algorithm. © 2022 ACM.

关键词： Sensor nodes

来源：评论

学校读者我要写书评

暂无评论

AUV 3D Path Planning Based on Improved Empire Competition Algorithm in Ocean Current Environment 6th

AUV 3D Path Planning Based on Improved Empire Competition Al...

引用

6th International Conference on Computing, Control, and Industrial engineering, CCIE 2021

作者： Yin, Shuyi Mao, Jianlin Li, Bin Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming650500 China

ISBN: (纸本)9789811939266

Aiming at the global three-dimensional path planning of autonomous underwater vehicles (AUV) in ocean currents, a three-dimensional path planning method based on the improved imperial competition algorithm (ICA) is proposed. First, establish a three-dimensional environment model and a cone three-dimensional ocean current model, and derive a cost function that measures path length, energy consumption, and sailing time to establish a multi-objective performance evaluation model to achieve global comprehensive optimization of AUV path planning;secondly, in the algorithm The colonial revolution part added the differential evolution algorithm to ensure that the algorithm will not lose outstanding individuals while increasing the diversity of the population;finally, the algorithm proposed in this article and the other three algorithms are simulated and analyzed on three different scale maps. The simulation results show that the improved ICA has a strong global search capability, improves the accuracy of the optimization process, strengthens the global optimization, and effectively solves the problem that traditional ICA is easy to fall into local optimal solutions, and can make AUVs Obtain the global optimal path, and the comprehensive performance index of the path is better than other comparison algorithms. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Autonomous underwater vehicles

来源：评论

学校读者我要写书评

暂无评论

Vehicle re-identification method based on semantic information enhancement and feature complementarity guided by keypoints 6

Vehicle re-identification method based on semantic informati...

引用

6th International Conference on Mechatronics and Intelligent Robotics, ICMIR 2022

作者： Luo, Huicheng Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming650500 China

ISBN: (纸本)9781510656635

Vehicle re-identification aims to retrieve and match vehicles under non-overlapping cameras. Although this technology has made some progress in recent years, the problem of vehicle appearance ambiguity caused by perspective shift still can not be well resolved. To alleviate the above problem, this paper proposes a vehicle re-identification method based on keypoint-guided semantic feature alignment and graph matching strategy to enhance complementary information under the transformer framework. The method first uses the pre-trained vehicle attitude detection model to extract keypoints, and proposes an information mapping strategy. Through the coordinate information of keypoints, the corresponding local feature tokens under the transformer framework are extracted and given semantic content to achieve the same semantics. Feature alignment for attribute tokens. Then, a graph matching network is constructed to realize the transfer of semantic information between similar samples, and the expressive ability of features is further improved through the multivariate interaction of information. The proposed model achieves state-of-the-art performance and superiority compared to similar methods on two large vehicle re-ID datasets. © 2022 SPIE.

关键词： Deep learning

来源：评论

学校读者我要写书评

暂无评论

Person re-identification from text to image based on mutual teaching 3

Person re-identification from text to image based on mutual ...

引用

3rd International Conference on Artificial Intelligence and Electromechanical automation, AIEA 2022

作者： Mo, Chengjian Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming650500 China

ISBN: (纸本)9781510657281

Text-based cross-modal person re-identification refers to the retrieval of the corresponding identity image in the pedestrian image set through the linguistic description of the pedestrian. Aiming at the problem that there is no interaction between the image-text feature extraction branch, we propose a text-to-image person re-identification method based on mutual teaching. The proposed method adds interactive operation in the image text feature extraction part to make the image and text information respectively guide the feature extraction of another modality, which realizes the information transfer between image and text modalities to close the distance between two modalities. The method is experimentally verified on the CUHK-PEDES dataset. The experimental results show the effectiveness and superiority of the proposed method. © 2022 SPIE.

关键词： Feature extraction

来源：评论

学校读者我要写书评

暂无评论

Temporal convolutional neural network with self-attention for short-term load forecasting 2

Temporal convolutional neural network with self-attention fo...

引用

2nd International Conference on Electronic Materials and information engineering, EMIE 2022

作者： Cui, Jing Liu, Xiaoyan Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming650500 China

ISBN: (纸本)9781713865629

The operation of the power system becomes more flexible and uncertain as the electrical market reform continues to develop, requiring smart grid data processing efficiency, intelligence analysis, and processing technology. Temporal Convolutional Networks (TCN) are a specific design for forecasting problems that offers advantages over recurrent networks. In this paper, a hybrid method is proposed temporal convolutional neural network with self-attention (TCN-SA) for short-term load forecasting that can make more accurate predictions by extracting multi-scale characteristics than other existing methods. We apply it to an open dataset and comparisons with existing models show that the proposed model provides accurate load forecasting results. © VDE VERLAG GMBH ∙ Berlin ∙ Offenbach.

关键词： Smart power grids

来源：评论

学校读者我要写书评

暂无评论

An optical electric field sensor using two cascaded LiNbO3 crystals with improved sensitivity

引用

IEEE Sensors Journal 2025年第12期25卷 21377-21385页

作者： Zhang, Jiahong Liu, Baoyong Liu, Xiaoming Li, Yingna Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming China Chengdu Technological University of China Chengdu China School of Information Engineering and Automation Kunming University of Science and technology China

Based on the Pockels effect of lithium niobate LiNbO3 crystals, a high-sensitivity electric field sensor utilizing a dual-crystal configuration of LiNbO3 was designed and fabricated. The sensor internally cascades a LiNbO3 crystal with light propagation along the x-axis and an electric field applied along the z-axis, and another crystal with light propagation along the x-axis and an electric field applied along the y-axis. By utilizing the large electro-optic coefficient γ33 of LiNbO3 along the z-axis, the sensor's sensitivity is significantly enhanced. Consequently, under the condition of identical crystal length, this sensor exhibits higher sensitivity compared to current electric field sensor that employ light propagation along the z-axis. Experimental results indicate that the sensor can accurately measure the time-domain waveforms of electromagnetic pulse (EMP) with rise time on the microsecond and nanosecond scales without distortion. The sensitivity of the sensor is 1.40 mV/(kVm-1), with the minimum and maximum measurable time-domain EMP being 3.6 kV/m and 320.1 kV/m, respectively. When the span of the spectrum analyzer is set to 10 kHz and the resolution bandwidth (RBW) is 10 kHz, the minimum detectable electric field is 2.2 V/m, corresponding to a linear dynamic range of 103.30 dB. Furthermore, from 5 °C to 40 °C, the static output optical power of the sensor fluctuates within ±0.28 dB. © 2001-2012 IEEE.

关键词： Spectrum analyzers

来源：评论

学校读者我要写书评

暂无评论

Design of Cooperative Driving System Based on VANET 1

引用

4th International Conference on Wireless Communications and Applications, ICWCA 2020

作者： Li, Jing Tao Li, Xiao Jiang Li, Zhen Feng Qiu, Run Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming650051 China

ISBN: (数字)9789811651649

ISBN: (纸本)9789811651632

The rapid development of automobile industry has brought great convenience to people’s travel, but the increase of vehicles also brings a series of environmental problems and traffic problems, so this paper designs a cooperative driving system based on vehicular ad hoc network (VANET). As a product of the integration of communication industry and automobile industry, VANET can provide drivers with the perception ability beyond visual range, thus giving drivers more reaction time and reducing the probability of traffic accidents. In addition, in some specific environment, the system can achieve a certain degree of automatic driving, reduce the driver’s fatigue, but also reduce fuel consumption. Finally, this paper uses Simulation of Urban MObility (SUMO) to simulate the vehicle driving at the crossroads. According to the simulation results, under the action of the system, the vehicles can pass through the intersection safely and effectively. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Vehicular ad hoc networks

来源：评论

学校读者我要写书评

暂无评论

Solar Observation with the Fourier Transform *** Results of Solar Spectrum near the CO 4.66μm and Mg I 12.32μm

引用

Research in Astronomy and Astrophysics 2023年第12期23卷 128-137页

作者： Xianyong Bai Zhiwei Feng Zhiyong Zhang Yuanyong Deng Xiaoming Zhu Kaifan Ji Song Feng Xiao Yang Yongliang Song National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 101408China Yunnan Observatories Chinese Academy of SciencesKunming 650011China Faculty of Information Engineering and Automation/Yunnan Key Laboratory of Computer Technology Application Kunming University of Science and TechnologyKunming 650500China

An infrared solar spectrum observed by ground-based telescopes is seriously affected by the background radiation both from the telescope and sky,relative to the visible *** accuracy is also influenced by the spectral resolution of the Fourier transform *** the paper,we developed a CO_(2)gas cell and installed it in the sample compartment to calibrate the spectral resolution of the Bruker IFS-125HR at infrared *** measured spectral resolution is 0.00342±0.00086 cm^(-1)and 0.0059±0.00024 cm^(-1)at the wavenumbers of798 cm^(-1)and 2136 cm^(-1),*** also updated a fully reflective sunlight feeding system to observe the solar spectrum near CO 4.66μm and Mg I 12.32μ*** quickly pointing the sunlight feeding system about1 degree away from the solar disk center,we are able to measure the background radiation from the telescope and the sky at Huairou Solar Observing *** removing the background radiation,our observed solar spectrum at CO 4.66μm is consistent with that from the National Solar *** Mg I 12.32μm working line selected by the Accurate Infrared Magnetic Field Measurements of the Sun(AIMS)project is also *** method is helpful not only for the spectral resolution calibration and background radiation correction of AIMS but also for other infrared astronomical telescopes.

关键词： Sun infrared-methods observational-instrumentation interferometers

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：