Construction method of operation risk ontology of rail transit system

A rail transit and risk technology, applied in the construction of rail transit system operation risk ontology

Pending Publication Date: 2021-10-22
BEIJING JIAOTONG UNIV
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Problems solved by technology

[0005] At present, there is no effective construction method of rail transit system operation risk ontology in the prior art

Method used

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  • Construction method of operation risk ontology of rail transit system
  • Construction method of operation risk ontology of rail transit system
  • Construction method of operation risk ontology of rail transit system

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Embodiment Construction

[0099] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0100] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...

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Abstract

The invention provides a construction method of an operation risk ontology of a rail transit system. The method comprises the following steps: starting from four aspects of man-machine environment management according to rail transit system operation accident characteristics, constructing five types of sub-word libraries representing accident characteristics, and carrying out weight setting on the five types of sub-word libraries; calculating risk conceptual words of the accident data text based on the accident data text and the five types of sub-word libraries by using an improved TF-IDF, calculating weight values of the risk conceptual words according to weights corresponding to the five types of sub-word libraries, and extracting hierarchical and non-hierarchical relationships among the risk conceptual words by using an improved K-means algorithm; and constructing the rail transit system operation risk ontology according to the risk concepts of the rail transit operation risk ontology, the hierarchical and non-hierarchical relationships between the risk concept words and the weight values of the risk concept words. According to the method, the urban rail transit operation accident text risk can be effectively extracted, important data support is provided for rail transit system operation risk research, and a solid foundation is laid for risk prevention and control research.

Description

technical field [0001] The invention relates to the technical field of rail transit system operation safety management, in particular to a method for constructing a rail transit system operation risk ontology. Background technique [0002] As the pace of my country's urbanization continues to accelerate, people's growing travel needs have accelerated the development of urban rail transit. As a convenient, safe and comfortable means of urban public transport, urban rail transit has many advantages, but its many potential safety hazards have also attracted widespread attention. [0003] In recent years, rail transit has been opened in most cities in my country. In addition, urban rail transit is a passenger-intensive public place, and most of them operate in underground confined spaces. If a safety incident occurs, it will have a great social impact. Therefore, the safety of urban rail transit operations is guaranteed. Become the primary focus of the operation of the enterpris...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/36G06F40/216G06Q10/06G06Q50/30
CPCG06F16/367G06F40/216G06Q10/0635G06Q50/30
Inventor 王艳辉贾利民李曼刘丽夏伟富张天格王文浩赵盛盛牛鹏骅
Owner BEIJING JIAOTONG UNIV
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