2 results about "Large city" patented technology

This invention discloses a method and platform for evaluating the resilience of towns and villages on the outskirts of large cities. The method includes steps such as constructing a multi-level evaluation index system, acquiring and processing evaluation data, calculating index weights, and obtaining evaluation results. It establishes a multi-level index system encompassing economic resilience, social resilience, ecological resilience, and infrastructure resilience. Relevant literature data is acquired using web crawling technology and semantic analysis models. The final indicators are selected using the TF-IDF algorithm, and the index weights are calculated using the information entropy method. Finally, the evaluation results are obtained using the fuzzy comprehensive evaluation method. This method automates the evaluation process, enabling rapid and accurate assessment of the resilience level of towns and villages on the outskirts of large cities, providing a scientific basis for urban planning and management decisions.

The invention relates to the technical field of urban data operation, in particular to a Shanghai address database dynamic updating operation method, which comprises the following steps of: uniformly processing data formats by completing docking with data source interfaces of Shanghai public security, postal service and maps; existing address data in Shanghai are disassembled into hierarchical fields of cities, districts, streets, roads and roadways according to a 18-level structured model, hierarchical differences between a new data source and a golden address library are continuously compared, address change authenticity is inferred through a knowledge graph and a graph neural network, target addresses which are not inquired in continuous 3 months are judged as suspected discarding, and discarding of the target addresses is judged. And predicting a discarding probability and a change state in combination with a time sequence model, and archiving historical data to obtain a complete address library containing a life cycle. According to the method, the problems that the efficiency is low and intelligent, efficient and traceable address library dynamic updating operation cannot be realized when a traditional regular full-quantity synchronization mode is used for dealing with high-frequency address change of an ultra-large city in Shanghai are solved.