Space-time clustering method for information acquisition of public security event

A public safety and event information technology, applied in the fields of early warning, monitoring, emergency response, and public safety event management, can solve problems such as few information sources and untimely data acquisition, achieve huge human and material resource consumption, improve disposal efficiency, and improve the processing process complex effects

Pending Publication Date: 2017-10-03
CENT SOUTH UNIV
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AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of untimely data acquisition and few information sources in the current public security event handling process, the present invention combines the characteristics of network crowd source data and proposes a spatio-temporal cluste

Method used

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  • Space-time clustering method for information acquisition of public security event
  • Space-time clustering method for information acquisition of public security event
  • Space-time clustering method for information acquisition of public security event

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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0047] Brief steps of the present invention see figure 1 ,include:

[0048] (1) According to the characteristics of public security events, determine the keywords, time range and geographic space range of the data to be searched, and use the API functions provided by the social networking platform to obtain real-time data.

[0049] (2) Use the Chinese word segmentation algorithm to segment the acquired data one by one; according to the word segmentation results, extract the attribute information of the data such as time, location, event type, event level, etc., and then regularize the data into .

[0050] (3) According to the selected event type and the input event occurrence time and location, determine the initial information of spatio-temporal clustering, which is recorded as kernel information.

[0051] (4) Calculate the time, space, and ...

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Abstract

The invention discloses a space-time clustering method for information acquisition of a public security event. The method comprises the steps of extracting information about the public security event in network text, and conducting clustering processing; then, conducting visualization; analyzing the influence range, development process, possible results and the like of the public event. Through the adoption of the space-time clustering method for the information acquisition of the public security event, after the public security event occurs, in combination with an event type and event keywords, the effective information about the event can be quickly extracted from social websites, and therefore through a space-time clustering algorithm and a map visualization system, the development process and evolution rules of the event are obtained efficiently, the determination of a solving decision for the public event is facilitated, and the solving efficiency of the public event is improved.

Description

technical field [0001] The invention belongs to the field of application of crowd-sourced network data to management, monitoring, early warning and emergency response of public safety events, and in particular relates to a time-space clustering method for information acquisition of public safety events. Background technique [0002] With the rapid development of the national economy and the continuous advancement of national urbanization, more and more people are concentrated in cities. The rapid growth of urban population data has caused certain troubles for urban public management. At present, the management of various public events in cities is mainly in the charge of government departments, including urban management departments, police agencies, fire agencies, medical departments, disaster prevention and reduction centers, disaster response command centers, etc. (Zhu Wuxiong, 2010; Xu Zhisheng et al., 2005; ), these government agencies provide an effective security bar...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F17/27G06Q50/26
CPCG06F16/35G06F40/289G06Q50/265
Inventor 李光强尹健刘银萍
Owner CENT SOUTH UNIV
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