1Research on Stock Price Prediction of KPCA-SVM-KNN Algorithm Based on Signal-to-noise RatioWANG Bingyu, LIU Yongjun685-6902An Improved Neural Architecture Search Algorithm Based on PCDARTSZHAO Jiakun, LIU Yunhui, SUN Jun691-696,7203Educational Resources Recommendation Method Based on Learner ModelHE Shaohua, YIN Siqing, JING Zhiyu, WANG Wenjie697-7024A Learner Class Profile Method Based on Improved DBSCAN Feature ClusteringLI Jing, HAO Yaojun, YANG Yu703-708,7565A Patent Query Expansion Method Based on Community DiscoveryCHEN Gaorong, XU Jian709-7146Improvement of Phase Compensation Function of Speech Enhancement Algorithm by ERB Scale DivisionXU Qingchen, WEI Yi, ZHANG Zaiyue715-7207Enterprise Financial Risk Analysis Model Based on Improved Analytic Hierarchy ProcessXIE Yani721-725,7618Public Opinion Analysis of Weibo Based on K-means Clustering Algorithm with Peak Density OptimizationYE Jinmei, CHENG Ke726-729,7359Research and Practice of Post-Project Evaluation Based on Multi-level Fuzzy Comprehensive Evaluation MethodXUE Yanyu730-73510Multi-dimensional Performance Evaluation Method of Cloud Anonymous SystemHUANG Lei736-739,78511Observer-based Non-fragile Control Study and Its Application in Chaotic SystemsZHANG Xuesheng, JI Mingming, ZHANG Wei740-74312Hybrid Algorithm Based on Individual Differential Evolution for Solving Multiple-choice Knapsack ProblemJIANG Yan, PAN Dazhi744-74913Road Target Detection Based on Improved Faster R-CNNZHOU Kang, ZHU Zongxiao, XU Zhengyu, TIAN Wei750-75614User Portrait Construction Method Based on Fusion of Multiple Data SourcesYUAN Miaomiao, HOU Ruichun, TAO Ye, YANG Ning757-76115High-precision Calibration Method of Binocular Camera Based on Halcon Calibration TargetHUANG Jian, LI Shiyang, ZHANG Xiuhua, WU Jinmeng762-76616Dynamic Tracking Method for Maximum Power Point of Photovoltaic Module Under Carrier MotionLI Peixing, PENG Lele, ZHANG Yafei, TAO Junpeng, ZHENG Shubin767-770,77417An Optimization Algorithm for Intra-frame Prediction Mode Selection Based on Texture MeasureWANG Nianzhi771-77418Improved YOLO v3 Algorithm for Car Detection from Aerial PhotographingWANG Maoqi, LI Jun, MA Jichen, XU Kangmin775-779,79519Research on Tracking Control of Moving Target Based on Quadrotor UAVCHEN Xuan780-78520Research on Multi-branch Path Recognition of Visual-guided AGVMAO Zhengchong, ZHAO Longzhi786-789,806 