Space-time fusion method for natural language expressing dynamic traffic information

Abstract

Disclosed is a temporal-spatial fusion method for a natural language to express dynamic traffic information, comprising the following steps: to make data pre-processing to the dynamic traffic information described in the form of Chinese natural language to eliminate errors or invalid information; to take the pre-processed result as an input parameter to improve the maximum matching algorithm and segment the key words in the algorithm; then to make use of the address positioning vocabulary reconstruction method to process the address positioning vocabularies and organize each key word based on the time, location, direction, offset and the structure of the event so as to express the dynamic traffic information in a formalized way; to process the formally expressed traffic key words through a temporal-spatial matching method facing the information fusion, and to ultimately achieve the purpose of temporal-spatial fusion between the dynamic traffic information and the underlying road network information. The method of the invention has the advantages of intelligence, automation, strong fault-tolerant capability, high fusion accuracy and wide adaptability, which solves the common problem of difficult real-time matching and fusion between the dynamic traffic information described in natural language and the underlying road network spatial information.

Description

technical field [0001] The invention relates to a time-space fusion method for expressing dynamic traffic information in natural language, which is applied to the release of dynamic traffic information, serving location service systems such as vehicle navigation and personal mobile navigation services, map websites, professional travel information system platforms, and logistics dispatching systems and traffic emergency plan notices. Background technique [0002] With the development of my country's social economy and science and technology, the demand for urban transportation continues to grow. At the same time, the idea of ​​service centered on public needs has risen rapidly. The information asymmetry between government agencies, management departments and the public is constantly changing. The voice of launching public information service is getting louder and louder. In this context, travel information services came into being. Urban public travel information service...

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: in view of the single source of dynamic traffic information that can be digitally applied at present, a large amount of dynamic traffic information described in Chinese natural language is still in the artificial voice broadcast stage, and it is difficult to match and integrate with the underlying road network space information in real time , and can not be used in the status quo of application systems such as travel information service platform, dynamic vehicle navigation system, map website, etc., a space-time integration method for expressing dynamic traffic information in natural language is proposed, which solves the problem of intelligentizing dynamic traffic information in Chinese natural language Processing and heterogeneity problems of various linear positioning methods in dynamic traffic information and two-dimensional spatial coordinate positioning methods of road network space information can be directly applied to application systems such as travel information services and dynamic vehicle navigation

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