A fusion evaluation method of traffic information collected based on micro blogs

Abstract

A fusion evaluation method of traffic information collected based on micro blogs comprises the steps of: constructing a data set of micro blog messages with traffic information as a theme; traversing road sections in a road network and selecting micro blog message records related to the road sections in the road network in an effective time window for establishing a micro blog message record set; extracting traffic information description indicators from the micro blog message records and formally conveying the traffic information contained in the micro blogs; performing fusion evaluation of the traffic information in the micro blog message record set and acquiring a real-time dynamic traffic information update table of the traffic information with regard to traffic restriction or traffic control; as for the traffic information with regard to road conditions, calculating clear degree and support degree of the road sections during corresponding period of time; establishing a dynamic feedback model and adjusting honesty degree of micro blog users; and circularly traversing all the roads in the road network and processing the traffic information of the whole road network covered in the micro blog message data set. The method in the invention realizes the rapid fusion evaluation of the traffic information contained in the micro blogs and provides an important data source for the collection of the urban traffic information, thereby being applicable to real-time navigation and location-based service systems, map websites, traffic planning management and emergence response plans.

Description

technical field [0001] The invention relates to mobile location service and mobile Internet technology, in particular to a traffic information fusion evaluation method based on microblog collection. Background technique [0002] Real-time traffic information collection and processing technology is the key technology of travel information service, and also an important part of Intelligent Transportation Systems (ITS). Real-time traffic information includes road traffic flow, road smoothness and driving speed, temporary traffic control, new traffic restrictions, unexpected traffic events, description information of traffic status for specific points (such as intersections and specific locations), etc. Rapid, timely and accurate acquisition of real-time changing traffic information can alleviate traffic congestion, improve transportation efficiency, ensure traffic safety, improve environmental quality, and facilitate public travel. At present, real-time traffic information acq...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a traffic information fusion evaluation method based on microblog collection in view of the current situation that a large amount of real-time traffic information contained in microblogs is difficult to be fully utilized, and to solve the problem of quantification of microblog messages, group micro Fusion of blog messages represents technical problems such as smoothness and confidence of road network operation status, dynamic feedback model reflecting changes in user integrity

Images