Method and device for case expression based on multi-dimensional situation model

Abstract

The present invention discloses a method and a device for case expression based on a multi-dimensional situation model. The method comprises the steps of: extracting information of disaster-bearing objects according to emergency cases and describing information of disaster situations of the disaster-bearing objects in different periods of time; performing classification of the disaster-bearing objects according to the object attribute information, forming a plurality of object class sets, extracting common object attributes having expression meaning of a class of objects for a given object class set, and establishing an object expression model; extracting disaster situation factors from the disaster situation information, and establishing a disaster situation severity space of the object class sets; combining the extracted disaster situation information based on the object expression model and the disaster situation severity space, and constructing emergency situations of a specific time and space; and combining the extracted disaster situation information and the geographic space information of the objects, establishing a space-time framework of situation evolution, establishing aspace-time connection of the emergency situations, and completing a structured expression of the emergency event cases. The method can provide an effective structured and quantized means, and therefore the applicability is improved, and the method and the device for case expression based on the multi-dimensional situation model are simple and easy to realize.

Description

technical field [0001] The invention relates to the cross technical field of emergency management and knowledge management, in particular to a case expression method and device based on a multidimensional scenario model. Background technique [0002] Emergency decision-making based on accident case experience is one of the important emergency decision-making modes in the field of emergency management, which makes CBR (Case-based Reasoning, case reasoning technology) widely used in emergency management of various emergencies in recent years. In the actual application of CBR technology to assist emergency decision support, since the time and space scale of most emergency cases is much larger than that of conventional cases, when using case reasoning technology to assist emergency decision-making, the case expression method exposes the following problems: the case expression method is difficult to present the dynamics of the disaster situation The evolution process; the descrip...

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Problems solved by technology

[0002] Emergency decision-making based on accident case experience is one of the important emergency decision-making modes in the field of emergency management, which makes CBR (Case-based Reasoning, case reasoning technology) widely used in emergency management of various emergencies in recent years. In the actual application of CBR technology to assist emergency decision support, since the time and space scale of most emergency cases is much larger than that of conventional cases, when using case reasoning technology to assist emergency decision-making, the case expression method exposes the following problems: the case expression method is difficult to present the dynamics of the disaster situation The evolution process; the description of the disaster situation by the case expression method is unstructured and non-quantitative, which is not conducive to the similarity assessment and disaster assessment; it is difficult for decision makers to obtain the influence of spatial factors on the development of the disaster situation through the existing case expression method

[0004] However, in related technologies, the method of describing the disaster situation of the object is not universal, and it is difficult to promote it as a general method to assist decision makers to establish a structured expression for different types of emergencies and disaster situations

There are still two deficiencies in the expression of the disaster situation as follows: the expression of the disaster situation lacks effective quantitative means, and the quantitative expression of the disaster situation can help decision makers quickly complete the assessment of the severity of the disaster situation within a limited time; When describing a complete accident case, the methods in related technologies do not consider how to organize different object disasters from two levels of time and space at the same time, forming a complete disaster evolution process of the accident case

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