High-definition urban functional area identification method and system based on crowd movement track

Abstract

The invention discloses a high-definition urban functional area identification method and system based on a crowd movement track, relates to the technical field of urban intelligent calculation, and aims to solve the problem that an existing urban static functional area division method cannot dynamically and effectively identify and divide urban functional areas according to the crowd movement track. According to the technical key points, the method comprises the following steps: dividing an urban region into a plurality of fine-grained space sub-regions; constructing global representation of the static function of the city; giving a plurality of moving tracks containing n space sub-regions, and embedding the region representation of the static function into each moving track in combination with the static function of the space sub-regions; inputting the movement tracks represented by the plurality of combined regions into a pre-trained double-layer biLSTM track function representation model to obtain a function representation vector of each space sub-region; and performing clustering analysis on the function representation vectors of all the space sub-regions to obtain the functional region category of each space sub-region. According to the invention, accurate division of urban functional areas can be realized.

Description

technical field [0001] The invention relates to the technical field of urban intelligent computing, in particular to a method and system for identifying high-definition urban functional areas based on crowd movement trajectories. Background technique [0002] Urban areas are spatial areas where high-density population, built-environment infrastructure, and socio-economic activities gather. Regions are important carriers of places where people consume, live, work and entertain, and the function of urban regions is one of the most important features of urban regions. Urban function describes land use for specific types of human activities, and land use varies in different regions and is influenced by a variety of factors such as geography, population, and history. The discovery of rational urban zoning and regional functions is essential for understanding today's cities and developing tomorrow's urban studies. The division of urban functional areas provides strong support fo...

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Problems solved by technology

[0004] In view of the above problems, the present invention proposes a high-definition urban functional area identification method and system based on crowd movement trajectories, to solve the problem that existing urban static functional area division methods cannot dynamically and effectively identify and divide urban functional areas according to crowd movement trajectories. question

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