Subway passenger demand dynamic acquisition method and acquisition system thereof

Abstract

The invention discloses a subway passenger demand dynamic acquisition method and an acquisition system thereof. The subway passenger demand dynamic acquisition method comprises the following steps: 1,building a demand lexicon, and obtaining user message sending data from a social network platform; 2, preprocessing the obtained data; 3, filtering texts irrelevant to subway passenger demands by adopting a support vector machine classifier; 4, performing correlation clustering; 5, for each clustering cluster, giving a label as a demand item, and calculating the importance of the demand item; 6,firstly judging whether the demand item exists in the demand word bank, if so, exiting, and if not, judging whether the importance degree and the relative propagation persistence of the demand item simultaneously meet a preset threshold value, if so, discovering a new demand item, adding the new demand item into the demand word bank; and if not, exiting. According to the invention, a large numberof user sentences can be processed; the user demand acquisition efficiency is improved; and the subjectivity is low; demand preferences and potential user demands can be obtained from massive user sentences in real time.

Description

technical field [0001] The invention discloses a method for dynamically acquiring demands of subway passengers, and in particular relates to a method for dynamically acquiring demands of subway passengers and an acquisition system thereof. Background technique [0002] In the past 10 years, the transportation capacity of railways has gradually increased, and its passenger turnover has also gradually increased. The increase in passenger traffic and turnover of urban railways and high-speed railways will further increase the density of rail transit lines and increase the number of orders for subway vehicles. This provides opportunities and challenges for subway vehicle manufacturers. Customers of rail vehicle manufacturing enterprises include operating companies and passengers. However, at present, rail vehicle manufacturing companies mainly focus on the needs of operating companies and lack of analysis of passenger needs, which affects the satisfaction of end customers with ...

AI Technical Summary

Problems solved by technology

Obtaining dynamic passenger demand not only requires a lot of manpower but also has a lot of subjectivity, which restricts the analysis of passenger demand by rail vehicle manufacturers

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