Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition最新文献_第9页

Forest Fire Detection Algorithm Based on DetNet-FPN Feature Fusion Network 基于DetNet-FPN特征融合网络的森林火灾检测算法

Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition Pub Date : 2022-09-23 DOI: 10.1145/3573942.3574032

Peng-cheng Guo, Jianjun Zhao, Zizhuan Li, Xianda Ni, Daohuan Tan, W. Bao

{"title":"Forest Fire Detection Algorithm Based on DetNet-FPN Feature Fusion Network","authors":"Peng-cheng Guo, Jianjun Zhao, Zizhuan Li, Xianda Ni, Daohuan Tan, W. Bao","doi":"10.1145/3573942.3574032","DOIUrl":"https://doi.org/10.1145/3573942.3574032","url":null,"abstract":"The occurrence of forest fire has caused a large area of forest damage, casualties and economic losses, and forest fire detection is the key to the timely warning of fire. The problem of small target loss still exists in the forest fire detection algorithm using FPN network. In order to solve the problem of poor definition of object edge and loss of small target flame semantic information caused by 32-fold downsampling in FPN multi-scale feature fusion network, a forest fire detection algorithm based on DetNet-FPN feature fusion network was proposed. The backbone network of the algorithm adopts DetNet59, which is specially designed for target detection task. The network is improved on the basis of ResNet50, and the sixth stage is added. In order to maintain the resolution of high-level feature map, downsampling is abandoned in the fifth and sixth stages. Furthermore, dilated convolution is used to replace the original bottleneck structure with 3x3 convolution to enlarge the receptive field of feature map, thus improving the detection ability of small scale targets. Experimental results show that compared with FPN algorithm, the average accuracy of the proposed algorithm is improved by 2.70%, and the accuracy of small target is improved by 2.3%, which has good detection effect in various scenarios.","PeriodicalId":103293,"journal":{"name":"Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123647500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Weakly-Supervised Estimation of Auroral Motion Field Via Iterative Pseudo Ground Truth Learning 基于迭代伪地面真值学习的极光运动场弱监督估计

Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition Pub Date : 2022-09-23 DOI: 10.1145/3573942.3574096

Qianqian Wang, Qiqi Fan, Yanyu Mao

{"title":"Weakly-Supervised Estimation of Auroral Motion Field Via Iterative Pseudo Ground Truth Learning","authors":"Qianqian Wang, Qiqi Fan, Yanyu Mao","doi":"10.1145/3573942.3574096","DOIUrl":"https://doi.org/10.1145/3573942.3574096","url":null,"abstract":"The small scale auroral structure is a far less explored field. Provided by auroral images which record the vivid auroral behaviors with satisfied temporal and spatial resolution, we are devoted to studying local auroral motions and the fine scale auroral activities. In order to estimate the auroral motion field, the method of optical flow is introduced to analyze auroral motion. However, the technology requires expensive dense annotations while training the network. Leveraged between the strong learning ability of the fully-supervised deep learning methods and the uncertainty of auroral data, we propose an iterative ground-truth learning approach to mine the pixel-level pseudo ground truth for auroral motion. Specifically, we first train a fully-supervised estimator on synthetic data via the Recurrent All-Pairs Field Transforms (RAFT) algorithm. The reconstructability and robustness of the estimated motion field are used as the criteria to measure applicability of the fully-supervised estimator for auroral images. Then, the mined motion fields as pseudo ground truths are in turn fed into the RAFT algorithms to fine-tune the fully-supervised estimator again, which is iterated until the high-quality pseudo ground truths for auroral data are found. Experiments on auroral data from the Yellow River Station demonstrate the effectiveness of our method. More and more pseudo ground truths of auroral data are used to gradually improve the estimated motion field results by refining the contextual features of auroral images. With iterative pseudo ground truth learning, estimated errors can be reduced effectively.","PeriodicalId":103293,"journal":{"name":"Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition","volume":"184 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127590778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A New Visual & Inertial Based Satellite Quality Evaluation Method 一种基于视觉和惯性的卫星质量评价新方法

Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition Pub Date : 2022-09-23 DOI: 10.1145/3573942.3573994

Pi Qiao, Ruichen Wu, Lei Sun, Dongfang Yang

引用次数: 0

UAV Visual Localization Technology Based on Heterogenous Remote Sensing Image Matching 基于异构遥感影像匹配的无人机视觉定位技术

Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition Pub Date : 2022-09-23 DOI: 10.1145/3573942.3574094

Haoyang Tang, Jiakun Shi, Xin Miao, Ruichen Wu, Dongfang Yang

{"title":"UAV Visual Localization Technology Based on Heterogenous Remote Sensing Image Matching","authors":"Haoyang Tang, Jiakun Shi, Xin Miao, Ruichen Wu, Dongfang Yang","doi":"10.1145/3573942.3574094","DOIUrl":"https://doi.org/10.1145/3573942.3574094","url":null,"abstract":"At present, the positioning function of intelligent UAVs mainly uses GPS technology, and GPS signals are susceptible to environmental and electromagnetic interference factors. In this paper, we combine remote sensing image processing with image matching algorithms to propose a GPS-independent visual localization technique for UAVs. First, the VGG16 network is used as the feature extraction backbone network, and the backbone network is designed and optimized for the characteristics of heterogenous remote sensing images. Secondly, a feature point screening and matching strategy is constructed, by which common feature points between heterogeneous remote sensing images can be screened and used for feature matching. Finally, the remote sensing image containing geographic location information and the UAV aerial image are fed into the network for feature extraction and matching, and the transformation matrix between the aligned images is calculated by the successfully matched feature points, and the transformation matrix is used to complete the mapping from the aerial image to the satellite image, and finally the geographic location information of each pixel can be read from the mapped image to complete the localization.","PeriodicalId":103293,"journal":{"name":"Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124511423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-instance learning anomaly event detection based on Transformer 基于Transformer的多实例学习异常事件检测

Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition Pub Date : 2022-09-23 DOI: 10.1145/3573942.3574104

Feifei Qin, Yuelei Xiao

{"title":"Multi-instance learning anomaly event detection based on Transformer","authors":"Feifei Qin, Yuelei Xiao","doi":"10.1145/3573942.3574104","DOIUrl":"https://doi.org/10.1145/3573942.3574104","url":null,"abstract":"Multi-instance learning (MIL) is the dominant approach for weakly supervised anomaly detection in surveillance videos. The shortcomings of using the features extracted by networks such as Convolutional 3D (C3D) or inflated 3D-ConvNet (I3D) alone to extract video context features have prompted the emergence of various abnormal event detection algorithms based on attention mechanisms. Vision Transformer (ViT) applies transformer to the field of computer vision for the first time and demonstrates its superior performance. In this paper, we propose a multi-instance learning anomaly event detection method based on Transformer, called MIL-ViT, which uses an inflated I3D pre-training model to extract Spatio-temporal features, and then inputs features into the ViT encoder to extract the particular salient pieces of information, and the anomaly scores are obtained. Furthermore, we introduce the MIL ranking loss and the center loss function for better training. The experimental results on two benchmark datasets (i.e. ShanghaiTech and UCF-Crime) show that the AUC value of our method is significantly improved compared with several state-of-the-art methods in recent years.","PeriodicalId":103293,"journal":{"name":"Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124515263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Can Mental Illness Lead to Dismissal? From a Causal Machine Learning Perspective 精神疾病会导致解雇吗?从因果机器学习的角度

Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition Pub Date : 2022-09-23 DOI: 10.1145/3573942.3573950

Yuan Feng

引用次数: 0

Robust Principal Component Analysis Based on Globally-convergent Iteratively Reweighted Least Squares 基于全局收敛迭代加权最小二乘的鲁棒主成分分析

Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition Pub Date : 2022-09-23 DOI: 10.1145/3573942.3574101

Weihao Li, Jiu-lun Fan, Xiao-bin Zhi, Xurui Luo

{"title":"Robust Principal Component Analysis Based on Globally-convergent Iteratively Reweighted Least Squares","authors":"Weihao Li, Jiu-lun Fan, Xiao-bin Zhi, Xurui Luo","doi":"10.1145/3573942.3574101","DOIUrl":"https://doi.org/10.1145/3573942.3574101","url":null,"abstract":"Classical Robust Principal Component Analysis (RPCA) uses the singular value threshold operator (SVT) to solve for the convex approximation of the nuclear norm with respect to the rank of a matrix. However, when the matrix size is large, the SVT operator has a slow convergent speed and high computational complexity. To solve the above problems, in this paper, we propose a Robust principal component analysis algorithm based on Global-convergent Iteratively Reweighted Least Squares (RPCA/GIRLS). In the first stage, the low-rank matrix in the original RPCA model is decomposed into two column-sparse matrix factor products, and the two matrix factors are solved via alternating iteratively reweighted least squares algorithms (AIRLS), thus reducing the computational complexity. However, since the AIRLS is sensitive to the initialization, the updated matrix factor in the first stage is used as the new input data matrix in the second stage, and the matrix factor is updated by the gradient descent step, and finally the optimal low-rank matrix that satisfies the global convergent conditions is obtained. We have conducted extensive experiments on six public video data sets, by comparing the background separation effects of these six videos and calculating their quantitative evaluation indexes, the effectiveness and superiority of the proposed algorithm are verified from both subjective and objective perspectives.","PeriodicalId":103293,"journal":{"name":"Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition","volume":"20 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116982018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on Task Offloading Based on Deep Reinforcement Learning for Internet of Vehicles 基于深度强化学习的车联网任务卸载研究

Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition Pub Date : 2022-09-23 DOI: 10.1145/3573942.3573987

Yaoping Zeng, Yanwei Hu, Ting Yang

引用次数: 0

Design and Implementation of Different Types of Window Functions Based on FPGA 基于FPGA的不同类型窗口函数的设计与实现

Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition Pub Date : 2022-09-23 DOI: 10.1145/3573942.3574114

J. Xue, Dongming Xu, Wei Yang

{"title":"Design and Implementation of Different Types of Window Functions Based on FPGA","authors":"J. Xue, Dongming Xu, Wei Yang","doi":"10.1145/3573942.3574114","DOIUrl":"https://doi.org/10.1145/3573942.3574114","url":null,"abstract":"In practical engineering design, we often need to carry out spectral analysis of the digital signal, which requires the use of Fourier transform, and it is defined as the spectral analysis of infinite long continuous time-domain signal. Because the computer cannot process and analyze the infinite time signal, it can only calculate the discrete signal of a limited number of points, so it needs to truncate the input signal of system. However, the truncation of signal will cause spectral leakage, resulting in incorrect spectral analysis of the signal. Although the spectral leakage cannot be completely eliminated theoretically, the window function method can suppress its influence. By adding different window functions to the signal, the spectral leakage can be greatly reduced, but the degree of reduction is different. This paper mainly studies the type of different window functions, and the algorithm principle and implementation of window function is realized by using CORDIC algorithm was proposed, by using field programmable logic gate array (FPGA) to complete the real-time signal processing, gives a specific design and implementation, and finished the system function simulation on Vivado platform under Xlinx. The results of MATLAB simulation and system function simulation are compared to verify the feasibility of the design scheme.","PeriodicalId":103293,"journal":{"name":"Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122422657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep Learning-Based Sentiment Analysis for Social Media 基于深度学习的社交媒体情感分析

Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition Pub Date : 2022-09-23 DOI: 10.1145/3573942.3573947

Zhe Wang, Ying Liu, Jie Fang, Da-xiang Li

{"title":"Deep Learning-Based Sentiment Analysis for Social Media","authors":"Zhe Wang, Ying Liu, Jie Fang, Da-xiang Li","doi":"10.1145/3573942.3573947","DOIUrl":"https://doi.org/10.1145/3573942.3573947","url":null,"abstract":"Due to the continuous popularization of the Internet and mobile phones, people have gradually entered a participatory network era, and the rapid growth of social networks has caused an explosion of digital information content. It has turned online opinions, blogs, tweets and posts into highly valuable assets, allowing governments and businesses to gain insights from the data and make their strategies. Business organizations need to process and analyze these sentiments to investigate the data and gain business insights. In recent years, deep learning techniques have been very successful in performing sentiment analysis, which offers automatic feature extraction, rich representation capabilities and better performance compared with traditional feature-based techniques. The core idea is to extract complex features automatically from large amounts of data by building deep neural networks to generate up-to-date predictions. This paper reviews social media sentiment analysis methods based on deep learning. Firstly, it introduces the process of single-modal text sentiment analysis on social media. Then it summarizes the multimodal sentiment analysis algorithms for social media, and divides the algorithm into feature layer fusion, decision layer fusion and linear regression model according to different fusion strategies. finally, the difficulties of social media sentiment analysis based on deep learning and future research directions are discussed.","PeriodicalId":103293,"journal":{"name":"Proceedings of the 2022 5th International Conference on Artificial Intelligence and Pattern Recognition","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130863295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0