Image Retrieval Algorithm of Intangible Cultural Heritage Based on Artificial Intelligence Technology -- Network Lossless Information Hiding Communication Method Based on Big Data -- Anomaly Recognition Method of Network Media Large Data Stream Based on Feature Learning -- Design and Implementation of Automatic Quick Report Function for WeChat on Earthquake Information in Liaoning -- Application of BIM + GIS Technology in Smart city 3D Design System -- Myopic retailer's Cooperative Advertising Strategies in Supply Chain Based on Differential Games -- Hardware System of Thermal Imaging Distribution Line Temperature Monitor based on Digital Technology -- Applications of Key Automation Technologies in Machine Manufacturing Industry -- The application of Vr technology in Han Embroidery Digital Museum -- Analysis of International Trade Relations Forecasting Model Based on Digital Trade -- Empirical Analysis of Online Broadcast Based on TAM Model -- A High Resolution Wavelet Chaos Algorithm for Optimization of Image Separation Processing in Graphic Design -- Design and Implementation of Smart Tourism Scenic Spot Monitoring System Based on STM32 -- Herd Effect Analysis of Stock Market Based on Big Data Intelligent Algorithm -- Intelligent Recommendation System for Early Childhood Learning Platform Based on Big Data and Machine Learning Algorithm -- Big Data Technology Driven 5G Network Optimization Analysis -- An Enterprise Financial Statement Identification Method based on Support Vector Machine -- An AIS Trusted Requirements Model for Cloud Accounting Based on Complex Network.