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A kind of dynamic acquisition method and acquisition system of subway passenger demand

An acquisition method and demand technology, applied in the field of dynamic acquisition method of subway passenger demand and its acquisition system, can solve the problems of high subjectivity, constraint analysis, and large manpower consumption, and achieve the effect of low subjectivity and improved acquisition efficiency

Active Publication Date: 2022-03-15
SOUTHWEST JIAOTONG UNIV
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  • Summary
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  • Description
  • Claims
  • Application Information

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

Method used

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  • A kind of dynamic acquisition method and acquisition system of subway passenger demand
  • A kind of dynamic acquisition method and acquisition system of subway passenger demand
  • A kind of dynamic acquisition method and acquisition system of subway passenger demand

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Embodiment Construction

[0081] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0082] like figure 1 As shown, a method for dynamically acquiring subway passenger demand includes the following steps:

[0083] Step 1: Build a demand lexicon, and obtain user posting data from social network platforms according to the demand lexicon;

[0084] Obtain user postings from social network platforms based on demand thesaurus. The demand lexicon is a collection of words related to the passenger demand of subway vehicles, including passenger demand items, rail vehicle product names, etc. Use the words in the demand lexicon as keywords, such as "subway speed", retrieve relevant user posts on social networking platforms, and then obtain these text data through web crawler technology. In this embodiment, keywords such as "subway wifi", "subway speed", and "subway stability" are used for retrieval.

[0085] Words such as stored passen...

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PUM

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Abstract

The invention discloses a method for dynamically acquiring subway passenger demands and an acquiring system thereof, comprising the following steps: step 1: building a demand lexicon, and acquiring user posting data from a social network platform; step 2: preprocessing the acquired data; 3: Use the support vector machine classifier to filter texts that are not related to the needs of subway passengers; Step 4: Perform correlation clustering; Step 5: For each cluster, give a label as a demand item, and calculate the importance of the demand item degree; Step 6: first judge whether the demand item already exists in the demand lexicon, if so, exit, if not, judge whether its importance and relative propagation persistence meet the preset threshold at the same time, if so, a new demand item is found, And add it to the demand lexicon, if it is not satisfied, then exit; the invention can handle a large number of user postings, improves the efficiency of user demand acquisition, and has low subjectivity; can obtain demand preferences and potential users from mass user postings in real time need.

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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/35G06F16/951G06F16/9535G06K9/62
CPCG06F16/35G06F16/951G06F16/9535G06F18/23213G06F18/2411G06F18/214
Inventor 黎荣黎伟洋王建丁国富张义军韩鑫郑宇飞
Owner SOUTHWEST JIAOTONG UNIV
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