1Application of Image Semantic Segmentation Technology in English Handwriting SegmentationWEI Yuanxi, CHEN Xia, WANG Haibo2795-2799,28422Research and Implementation of Secure Electronic Commerce System Based on BlockchainFAN Jili, ZHANG Yun, LI Xiaohua, NIE Tiezheng, ZHANG Yanfeng, YU Ge2800-2805,28253Research Development of Information Recommendation Based on Big Data in China:Architecture SystemSUN Yusheng, LI Yaqi, ZHU Jinhong2806-28144Waiting Time Prediction for Trucks in Steel LogisticsLIANG Shuang, CAI Peng2815-2820,28355Research on Network Embedding Model Oriented by Community DiscoveryCHEN Huiying, KOU Yue, SHEN Derong, NIE Tiezheng2821-28256Application of Data Mining in Aeronautical Information SystemREN Guanghao, ZHANG Guigang, WANG Jian2826-2829,28567Object Tracking Algorithm Based on Multi-feature Adaptive Learning MechanismGAN Zhanpeng, XU Huarong, HE Yuanrong, CAO Wei2830-28358Application of Geohash Coding in Taxi Cruise Route RecommendationLUAN Fangjun, ZHANG Pengxu, CAO Keyan2836-28429Research on Distributed ElasticSearch Based on Similar Content Comparison AlgorithmMA Zhiqin, LIAO Xuehua, DENG Wei, XIAO Wenchao2843-284910Optimization Method for Automatic Generation of Multiple Choice Questions Based on Semantic SimilarityWEN Xuefeng, CUI Xianji, ZHANG Junxing2850-285611Study on Facial Expression Recognition Algorithm Based on Time Series ImagesLI Jiaxi, CAI Sikun, ZHAO Changkuan, ZHANG Yu, CHEN Mo, YU Ge2857-286312Fish Density Estimation Algorithm Based on Redundancy CuttingLI Jing, WU Junfeng, YU Hong, ZHOU Yizhi2864-2868,291113Research Overview of Person Re-identification Based on Deep LearningSUN Xin, ZHUANG Shanna, WANG Zhengyou2869-2874,288014Machine Learning Pipeline Generation Utilizing Data Features and Service AssociationsZHAO Rutao, WANG Jing2875-288015Study on Learner Interaction Behavior on Social Online Curriculum PlatformLIAO Zhiyuan, TANG Zhikang, LI Chunying, TANG Yong, PAN Jiahui2881-2887,291816Design and Implementation of Health Chain System Based on BlockchainLEI Zhiwei, LI Jiafu, ZHANG Guigang, ZHAO Xu, ZHANG Yong, XING Chunxiao2888-289417Construction and Visualization of COVID-19 Prevention and Control Knowledge GraphHU Danyang, GAO Feng, GU Jinguang2895-2900,298318Hypernym Extraction over Medical Knowledge Entities Based on Pattern and Word EmbeddingLIU Zichen, WEN Yanlong, XU Lei2901-2905,295819Overlapping Community Discovery Algorithm Based on Node Importance and Local ExpansionGUO Feng, YOU Kaili, LI Xinze2906-291120Research on Relieving Mechanism of Peak Pressure for Ride-hailing Vehicles Based on Dynamic PriceXIA Yu, ZHU Junwu, JIANG Yi2912-2918 