CN107944699A - Case representation method and device based on multidimensional scenario models - Google Patents
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Abstract
The invention discloses a kind of case representation method and device based on multidimensional scenario models, wherein, method includes：The information of hazard-affected object the condition of a disaster in hazard-affected object information and description different periods is extracted according to accident case；Classified according to object properties information to hazard-affected object, form multiple object class sets, and to a given object class set, extract the shared object properties with expression and significance of this class object, establish object representation model；From the condition of a disaster information in extract the condition of a disaster key element, establish the condition of a disaster severity space of object class set；Based on object representation model and the condition of a disaster severity space, with reference to the condition of a disaster information of extraction, build the accident scene of specific space-time；With reference to the condition of a disaster information and object geographic spatial information is extracted, the Spatial-Temporal Frame of scene differentiation is established, establishes the space-time connection of accident scene, completes the structuring expression of accident case.This method can provide effective structuring and quantization means, improve applicability, simple easily to realize.
Description
Technical field
It is more particularly to a kind of to be based on multidimensional scene mould the present invention relates to the interleaving techniques field of contingency management and information management
The case representation method and device of type.
Background technology
It is one of important Emergency decision pattern in contingency management field to carry out Emergency decision based on accident case experience, this makes
Obtain CBR (Case-based Reasoning, case-based reasoning) and be widely used in the emergent of all kinds of accidents in recent years
In management, but when practical application CBR technologies auxiliary Emergency decision is supported, due to the spatial and temporal scales of most accident cases
Much larger than conventional case, when aiding in Emergency decision by case-based reasoning, case representation method exposes following problem：Case
Example expression is difficult to the dynamic evolution process that the condition of a disaster is presented；Description of the case representation method for the condition of a disaster is unstructured and non-
Quantify, be unfavorable for similarity assessment and the condition of a disaster assessment；Policymaker be difficult to by existing case representation method obtain space because
Influence of the element for the condition of a disaster development.
In fact, an accident case is to a multiagent, multiple target, the complete note of multistage dynamical evolution process
Record, this dynamical evolution process are made of the condition of a disaster of the different objects in different phase, and policymaker is in the different stages towards not
Same object the condition of a disaster carries out decision-making.That is, Emergency decision is substantially using object as core, object-oriented the condition of a disaster is determined
Plan.Therefore, when by case-based reasoning aid in Emergency decision when, in order to ensure reasoning by cases can aid decision making person worked as
The feasible solution of preceding problem, the emphasis of expression is not whole case, it may be that forms the object the condition of a disaster of case, at this time, case is exactly
The ordered set that some object the condition of a disasters are formed, the emergency response countermeasure of all object the condition of a disasters of a case constitute answering for the case
Anxious response countermeasure bag.Therefore, one of key problem of application case inference technology auxiliary Emergency decision is exactly to hazard-affected object calamity
The expression of feelings.
However, in correlation technique, the method for description object the condition of a disaster does not simultaneously have universality, it is difficult to as general method
Carry out promoting the expression that aid decision person establishes structuring for different types of accident the condition of a disaster.Also exist in the condition of a disaster expression
Following 2 points of deficiencies：The expression of the condition of a disaster lacks effective quantization means, and carrying out quantitative expression to the condition of a disaster contributes to policymaker having
The assessment of the condition of a disaster severity is rapidly completed in the time of limit；When using the condition of a disaster as elementary cell go description one complete accident case
When, the method in correlation technique does not account for carrying out group to different object the condition of a disasters from time and two, space aspect how at the same time
Knit, form the complete the condition of a disaster evolution process of accident case.
The content of the invention
It is contemplated that solve at least some of the technical problems in related technologies.
For this reason, an object of the present invention is to provide a kind of case representation method based on multidimensional scene, this method can
It is simple easily to realize to carry out structuring expression to accident case with the expression way of structuring.
It is another object of the present invention to propose a kind of case representation device based on multidimensional scene.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of case representation side based on multidimensional scene
Method, comprises the following steps：Extracted in hazard-affected object information and description different periods and held according to the related data of accident case
The information of calamity object the condition of a disaster, specifically includes the information, the information for recording the condition of a disaster origin cause of formation and the condition of a disaster reply of the description the condition of a disaster order of severity
Relevant information, and the spatial geography data in disaster place；The hazard-affected object is carried out according to the object properties information
Classification, to form multiple object class sets, and for a given object class set, extract this class object has expression and significance
Shared object properties, establish object representation model；The condition of a disaster key element is extracted from the condition of a disaster information, establishes the object class set
The condition of a disaster severity space；Based on the object representation model and the condition of a disaster severity space, with reference to the condition of a disaster of extraction
Information, builds the accident scene of specific space-time；The condition of a disaster information and the object geographic spatial information with reference to the extraction,
The Spatial-Temporal Frame of scene differentiation is established, the space-time connection of the accident scene is established, completes to the accident case
Structuring expression.
The case representation method based on multidimensional scenario models of the embodiment of the present invention, is expressed to hazard-affected object by structuring
And its severity of Disaster Event, the natural language description of the event origin cause of formation and counter-measure description is established, forms different disaster hairs
The accident scene in exhibition stage, and by expressing the time relationship and spatial relationship of scene, the different disaster stages oneself is described
Right weather conditions, establish the Spatial-Temporal Frame of scene differentiation, so as to fulfill the structuring expression to accident case, can have
Following advantage：The perfect intension of accident scene；The consistent object representation model of homogeneous object and the condition of a disaster severity space
Contribute to the similarity assessment between scene；The condition of a disaster severity space simplifies the assessment of the order of severity to different the condition of a disasters；Feelings
The Spatial-Temporal Frame aid decision making person that scape develops more completely recognizes the condition of a disaster of accident case from time and two, space aspect
Change procedure is simple easily to realize.
In addition, the case representation method according to the above embodiment of the present invention based on multidimensional scenario models can also have with
Additional technical characteristic down：
Further, in one embodiment of the invention, the accident scene is to be held in specific time period to described
The Disaster Event state and its origin cause of formation of calamity object and the structural description of counter-measure, are identified with s；The hazard-affected object refers to
The spatial entities influenced by disaster, are identified with e, and E represents the countably infinite set being made of hazard-affected object；The Disaster Event is specifically retouched
Having stated the disaster suffered by hazard-affected object influences, and is identified with d, and D represents the countably infinite set being made of Disaster Event；The Disaster Event
The origin cause of formation refers to the immediate cause for causing the condition of a disaster to produce, and is identified with Cause；The counter-measure of the Disaster Event is to refer to control
Or measure of the disaster to hazard-affected object influences is eliminated, and then the purpose of hazard-affected object is protected, identified with Action.
Further, in one embodiment of the invention, object representation model includes：Clustering objects, extraction have expression
The shared object properties and formation object representation model of meaning, wherein, clustering objects are：For hazard-affected object e, the classification of e is remembered
For class (e)=π, the set E induced by ejOne be divided into：[e]=Eπ, represent EjMiddle all categories are the object of π
The set formed, claims EπFor object class set；The shared object properties for having expression and significance are：Given object properties ai, for given
Object class setIf aiIt is ejHave the object properties of expression and significance for arbitraryAll set up, then aiIt is's
One shared object properties for having expression and significance, wherein, the object properties for having expression and significance are：Give an object properties ai,
The a under n evaluation indexiExpression and significance evaluation be scored at：0≤xj≤ 1, j=1,2 ..., n are comprehensive
Evaluation score is closed to be denoted asFor given threshold alpha (0<α<1), ifThen claim ai
There are the object properties of expression and significance, otherwise claim aiFor the object properties of no expression and significance；The object representation model is：It is given
One object class setIfIt is rightaiIt is the object that e has expression and significance
Attribute, claimsForObject representation model, claim aiForThe shared object properties with expression and significance.
Further, in one embodiment of the invention, the condition of a disaster severity space：Determine the condition of a disaster key element and foundation
The condition of a disaster severity space, wherein, the condition of a disaster key element is to describe the index of the condition of a disaster order of severity, by element name and key element value two parts
Form, wherein, the element name describes a kind of specific disaster Failure type with character string, and the key element value illustrates calamity
The degree that evil is destroyed, key element codomain, which is one, sequel, and index is marked the more serious disaster of bigger key element value degree of correspondence and destroyed；
The condition of a disaster severity space is：Give an object class setNoteDisaster Event collection beNoteAll calamities
The collection of feelings key element composition is combined intoClaimForScene space.
Further, in one embodiment of the invention, wherein, expression A of the object under object representation model is obtainedπ
(e),e∈Eπ, to obtain the structuring of object expression；Obtain Disaster Event d, the projection in the condition of a disaster severity spaced
∈Dπ, to obtain the severity of Disaster Event；According to the severity of the Disaster Event match Disaster Event origin cause of formation Cause and
The counter-measure Action of event, obtains the scene corresponding to Disaster Event d
Establish the corresponding scene of Disaster Event.
Further, in one embodiment of the invention, the Spatial-Temporal Frame for establishing the condition of a disaster differentiation, is further wrapped
Include：An accident case is given, expresses the time relationship of the accident scene of same hazard-affected object；A given burst
Event case, is expressed in same disaster developing stage, spatial topotaxy, space length relation and the space of accident scene
Direction relations；An accident case is given, describes the natural climate in different disaster developing stage in a text form
Condition, including：Temperature, weather, wind direction and wind speed.
To reach above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of case table based on multidimensional scenario models
Up to device, including：Information extraction module, the information and object for extracting the hazard-affected object self-characteristic in case data occur
The information of Disaster Event, including：The letter of the information for describing state-event, the information for describing the event origin cause of formation and event reply rescue
Breath, and obtain the spatial data in accident place；Object modeling module, establishes the object representation model of similar hazard-affected object；Calamity
Feelings modeling module, establishes the condition of a disaster severity space for describing the hazard-affected object the condition of a disaster order of severity；Scene modeling module, based on object
Expression model and the condition of a disaster severity space, and with reference to the condition of a disaster Genesis Information and the condition of a disaster reply information, build accident feelings
Scape；Case representation module, according to the relevant information of the condition of a disaster and the spatial data in accident place, establishes the space-time that scene develops
Frame, forms the structuring expression of accident case.
The case representation device based on multidimensional scenario models of the embodiment of the present invention, is expressed to hazard-affected object by structuring
And its severity of Disaster Event, the natural language description of the event origin cause of formation and counter-measure description is established, forms different disaster hairs
The accident scene in exhibition stage, and by expressing the time relationship and spatial relationship of scene, the different disaster stages oneself is described
Right weather conditions, establish the Spatial-Temporal Frame of scene differentiation, so as to fulfill the structuring expression to accident case, can have
Following advantage：The perfect intension of accident scene；The consistent object representation model of homogeneous object and the condition of a disaster severity space
Contribute to the similarity assessment between scene；The condition of a disaster severity space simplifies the assessment of the order of severity to different the condition of a disasters；Feelings
The Spatial-Temporal Frame aid decision making person that scape develops more completely recognizes the condition of a disaster of accident case from time and two, space aspect
Change procedure is simple easily to realize.
In addition, the case representation device according to the above embodiment of the present invention based on multidimensional scenario models can also have with
Additional technical characteristic down：
Further, in one embodiment of the invention, the accident scene is to hazard-affected right in specific time period
The Disaster Event state and its origin cause of formation of elephant and the structural description of counter-measure, are identified with s；The hazard-affected object refers to disaster-stricken
The spatial entities that evil influences, are identified with e, and E represents the countably infinite set being made of hazard-affected object；The Disaster Event has been described in detail
Disaster suffered by hazard-affected object influences, and is identified with d, and D represents the countably infinite set being made of Disaster Event；The Disaster Event origin cause of formation
Refer to the immediate cause for causing the condition of a disaster to produce, identified with Cause；The counter-measure of the Disaster Event is to refer to control or disappear
Except measure of the disaster to hazard-affected object influences, and then the purpose of hazard-affected object is protected, identified with Action.
Further, in one embodiment of the invention, wherein, expression A of the object under object representation model is obtainedπ
(e),e∈Eπ, to obtain the structuring of object expression；Obtain Disaster Event d, the projection in the condition of a disaster severity spaced
∈Dπ, to obtain the severity of Disaster Event；The origin cause of formation Cause and event of Disaster Event are matched according to the severity of Disaster Event
Counter-measure Action, obtain the scene corresponding to Disaster Event dEstablish
The corresponding scene of Disaster Event.
Further, in one embodiment of the invention, the case representation module be further used for given one it is prominent
Hair event case, establishes the expression of same target difference scene time relationship, and qualitative description same stage, different accidents
Spatial topotaxy, Spatial Direction Relations and the space length relation of scene, and describe in a text form in different calamities
The natural climate condition of evil developing stage, including：Temperature, weather, wind direction and wind speed.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the flow chart according to the case representation method based on multidimensional scene of the embodiment of the present invention；
Fig. 2 is the flow chart according to the case representation method based on multidimensional scene of one embodiment of the invention；
Fig. 3 is the conceptual relation schematic diagram according to one embodiment of the invention；
Fig. 4 is the structure diagram of the multidimensional scene expression device under the Spatial-Temporal Frame according to the embodiment of the present invention.
Embodiment
Under the embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning extremely
Same or similar label represents same or similar element or has the function of same or like element eventually.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The case representation method and dress based on multidimensional scene proposed according to embodiments of the present invention is described with reference to the accompanying drawings
Put, describe the case representation method based on multidimensional scene proposed according to embodiments of the present invention with reference to the accompanying drawings first.
Fig. 1 is the structure diagram of the case representation method based on multidimensional scene of the embodiment of the present invention.
As shown in Figure 1, the case representation method based on multidimensional scene of being somebody's turn to do comprises the following steps：
In step S101, hazard-affected object information and description different periods are extracted according to the related data of accident case
The information of interior hazard-affected object the condition of a disaster.
Believe it is understood that the embodiment of the present invention can extract hazard-affected object according to the related data of accident case
The information of hazard-affected object the condition of a disaster in breath and description different periods, wherein, it is hazard-affected right in hazard-affected object information and description different periods
As the information of the condition of a disaster specifically includes：The information for describing the condition of a disaster order of severity, the information for recording the condition of a disaster origin cause of formation and the phase of the condition of a disaster reply
Close information, and the spatial geography data in disaster place
In step s 102, the object representation model of homogeneous object is established according to object properties information.
It is understood that the embodiment of the present invention is establishing the object representation model stage, can be according to hazard-affected object information
Class classification is carried out to hazard-affected object, to form some object class sets；And for a given object class set, extract this kind of
The shared object properties of object, allow expert therefrom to filter out the object properties of expression and significance, establish the object of the object class set
Expression model.
In step s 103, the condition of a disaster key element is set according to the condition of a disaster information, establishes disaster severity space.
It is understood that the condition of a disaster severity spatial phases are being established, it is real for a given object class set, the present invention
The condition of a disaster key element can be extracted according to the condition of a disaster information of hazard-affected object by applying example, establish the condition of a disaster severity space of the object class set.Its
In, the condition of a disaster key element is the index that the condition of a disaster order of severity is described, and element name represents the type that disaster is destroyed, and key element value is determined
Property or the degree destroyed of quantitative description, key element codomain is an ordered set, and order relation represents that the severity between key element value closes
System.
In step S104, based on object representation model and the condition of a disaster severity space, arranged with reference to the origin cause of formation of the condition of a disaster and reply
Apply structure accident scene.
It is understood that when building accident scene, the embodiment of the present invention can be according to the Object table established
Up to model and the condition of a disaster severity space, the expression of hazard-affected object and the expression of object the condition of a disaster severity are obtained, is formed<The origin cause of formation is right
As expression, the expression of the condition of a disaster severity, counter-measure>Quaternary scene structure.
In step S105, according to the condition of a disaster information and the geographical spatial data in disaster-stricken place, the space-time of structure scene differentiation
Frame, so as to carry out structuring expression to accident case.
It is understood that the Spatial-Temporal Frame that structure scene of the embodiment of the present invention develops is actually to establish scene in the time
Contact spatially, wherein, the contact of scene in time refers to the relation between the scene duration, and scene is spatially
Contact be the relation of the hazard-affected object of scene spatially, including spatial topotaxy, Spatial Direction Relations and space length
Relation.
In one embodiment of the invention, accident scene be in specific time period the condition of a disaster of hazard-affected object and its
The structural description of the origin cause of formation and counter-measure, is identified with s.
In one embodiment of the invention, the origin cause of formation of the condition of a disaster refers to the immediate cause for causing the condition of a disaster to produce, mainly
It is divided into two major classes：Flood inducing factors are triggered overcritical with Flood inducing factors.
Further, Flood inducing factors, which are triggered, refers to that Flood inducing factors are triggered and refers to there is destructive material, information, energy
Amount by unconventional triggers, and damages；Flood inducing factors are overcritical to refer to that material, energy and information exceed normality threshold due to quantity
Be worth and damage, wherein, normality threshold value refer to material of the hazard-affected object in normal state, the maximum of energy and information or most
Small value
In one embodiment of the invention, hazard-affected object refers to the spatial entities influenced by disaster, is identified with e, by hazard-affected
Object has described by the object properties of expression and significance.
Further, object properties are the indexs of description object feature, determine object attribute ajWhether it is hazard-affected object ei's
The method of object properties is as follows：
If aj(ei) ≠ null, then ajIt is hazard-affected object eiObject properties, otherwise ajIt is not hazard-affected object eiObject category
Property, null expression null values, implication is not present for object attribute values.
Further, the object properties for having expression and significance refer to：Give an object properties aj, under n evaluation index
To some known object properties aiEvaluated, the evaluation of its expression and significance is scored at：0≤xj≤
1, j=1,2 ..., n, its overall merit score are denoted asFor given threshold alpha (0<<1), ifThen aiTo there is the object properties of expression and significance, otherwise aiFor the object properties of no expression and significance.
Further, the shared object properties with expression and significance of same class object constitute the object of the class object
Expression model, object representation model are defined as follows：Give an object class setIf one is had by what shared object formed
Limit object properties collectionMeet：A is that have expression and significance to Emergency decision
Object properties,A is to object properties of the e without expression and significance, is claimedForObject representation model, its
In, shared object properties refer to：Give an object properties aiIfaiIt is the object properties of e, claims aiFor's
Shared object properties.
In one embodiment of the invention, it is opposite to hazard-affected object to refer to the disaster within a period for the condition of a disaster of hazard-affected object
Stable influence, is structurally expressed as the vector in the condition of a disaster severity space, uses<e,T>Mark, wherein, T represents relatively steady
Fixed disaster influences duration.
Further, the condition of a disaster severity space is using hazard-affected key element as axis, qualitatively or quantitatively to describe hazard-affected object calamity
The expression model of the feelings order of severity.
Specifically, the definition of the condition of a disaster key element is：Claim mappingFor the condition of a disaster key element, wherein EΠIt is pair
As class set,It is time collection,Referred to as key element codomain, definitionIt isOn severity relation, have：ForClaimFor key element valueThan key element value
Seriously；ClaimFor key element valueWith key element valueQuite；Regulation：For two
The key element knownIf i ≠ j, thenIf i=j, thenWhereinReferred to as element name, represents the type that disaster is destroyed.
The definition in the condition of a disaster severity space is：ClaimFor object class set EπThe condition of a disaster severity
Space, whereinIt is EπCorresponding the condition of a disaster key element collection,T is
The finite aggregate being made of the time.
In one embodiment of the invention, Spatial-Temporal Frame expression refers to for accident scene settling time and spatially
Contact.
Specifically, the contact of accident in time is defined as：If scene si,sjCorresponding time segment is respectively：Ti
=[εi,βi],Tj=[εj,βj], wherein ε represents the initial time of scene, and β represents the termination time of scene, and Tim represents scene
Time relationship, definition：If εi<εj, βi≤βj, note Tim (si,sj)=Before, represents scene siEarlier than scene sjOccur；If εi
≤εj, βi>βj, note Tim (si,sj)=Contain, there is shown existing scene siWhen have scene sjOccur；If εi=j, βi=βj, note
Tim(si,sj)=Equal, represents scene scene siWith scene sjOccur disappearing at the same time at the same time.
The contact of accident scene spatially refers to the relation of hazard-affected object spatially, including：Space topological closes
It is RTop, Spatial Direction Relations RDirWith space length relation RDis。
In an embodiment of the present invention, the case representation method based on multidimensional scene of the embodiment of the present invention has following excellent
Gesture：
(1) the perfect intension of accident scene；
(2) similitude that the consistent object representation model of homogeneous object and the condition of a disaster severity space contribute between scene is commented
Estimate；
(3) the condition of a disaster severity space simplifies the assessment of the order of severity to different the condition of a disasters；
(4) the Spatial-Temporal Frame aid decision making person that scene develops more completely recognizes burst thing from time and two, space aspect
The condition of a disaster change procedure of part case.
The expression of the embodiment of the present invention is described in detail with a specific embodiment with reference to Fig. 2 and Fig. 3.
In one particular embodiment of the present invention, the idiographic flow of the case representation method based on multidimensional scene is as follows：
S1 data preparation：Extracted according to the related data of accident case in hazard-affected object information and description different periods
The information of hazard-affected object the condition of a disaster, information, the information for recording the condition of a disaster origin cause of formation and the condition of a disaster for specifically including the description the condition of a disaster order of severity should
To the relevant information of measure, and the spatial geography data in disaster place, wherein：
The relevant information of hazard-affected object is that have the information directly illustrated to the object properties of hazard-affected object, such as describes oil tank
Highly, the information such as diameter, storage material, the structure of tank and material；
The relevant information of hazard-affected object the condition of a disaster specifically includes the information of the description the condition of a disaster order of severity, records the letter of the condition of a disaster origin cause of formation
The relevant information of breath and the condition of a disaster counter-measure, information of the condition of a disaster order of severity is that description disaster can quilt to hazard-affected object described in it
It was observed that influence degree information, such as：Oil tank burning severe degree, the information of flame height are described；Record the condition of a disaster origin cause of formation
Information be mainly the information that is disclosed of immediate cause produced to the condition of a disaster, be divided into that Flood inducing factors are overcritical and Flood inducing factors quilt
Set out two classes, such as because causing oil tank on fire lightning stroke be exactly that Flood inducing factors " oil product " are triggered by thunder and cause the accident of energy to be released
Put；The relevant information of record the condition of a disaster counter-measure refers to control or eliminates hazard-affected object the condition of a disaster, so as to protect the phase of hazard-affected object
Information is closed, such as：Cooled down with the tank body of foam gun spray combustion tank.
S2 establishes object representation model：Unified object representation model is established for generic hazard-affected object, is specifically included：Really
Determine the shared object properties of object class set and screening with expression and significance, wherein：
It is that hazard-affected object category is divided according to the information of the hazard-affected object extracted to determine object class set, such as
The oil tank that the oil tank and thermal radiation of burning threaten belongs to " storage tank " class object, and oil pipeline and blow-off line belong to " pipe
Road " class object；
Shared object properties of the screening with expression and significance are to giving all common of object class set using expert graded
There are object properties to carry out expression and significance evaluation, idiographic flow is：One shared object properties of selection are concentrated from shared object properties,
Every expert scores the expression and significance of the object properties and takes the average value after normalization as the comprehensive of the object properties
Scoring is closed, compares the magnitude relationship between comprehensive grading and given threshold value, if not less than meaningful object category if threshold value
Property, the process is repeated until having evaluated all shared object properties.
S3 establishes the condition of a disaster severity space：With reference to the condition of a disaster information of hazard-affected object, the condition of a disaster key element is set, is similar hazard-affected right
The scene of elephant establishes unified the condition of a disaster severity space, wherein：Setting the condition of a disaster key element is believed according to the condition of a disaster of similar hazard-affected object
Breath, determines disaster Failure type and its codomain being observed；Such as：A kind of disaster Failure type of storage tank class object is combustion
Burn, for ordered set, (normal, no burning but tank body high temperature, stablize burning, splash burning, combustion explosion, there is large area stream to its codomain
Drop down the splash burning of fire).
S4 builds accident scene：According to the object representation model and the condition of a disaster severity space established, with reference to object
The relevant information of the condition of a disaster, forms<The origin cause of formation, object representation, the expression of the condition of a disaster severity, counter-measure>Quaternary accident scene.
S5 establishes scene and develops Spatial-Temporal Frame, realizes the structuring expression of accident case：Believed according to the time of the condition of a disaster
Breath and the geographical spatial data in hazard-affected place, establish the time-space relationship of accident scene, generate accident scene chain, its
In：The time relationship of accident scene is mainly：Before, comprising and at the same time；Spatial relationship is mainly the space of hazard-affected object
Relation, predominantly：Eight kinds of spatial topotaxies, eight kinds of Spatial Direction Relations, and qualitative or quantitative space length relation.
Fig. 2 is the implementing procedure of the case representation method provided in an embodiment of the present invention based on multidimensional scene, is specifically included
Five parts：
(1) data acquisition
By taking certain oil depot fire as an example, according to the data of the case, data acquisition result is as described in Table 1, and table 1 is original for case
Tables of data.
Table 1
(2) object representation model is built
According to the information of hazard-affected object in table 1, object representation model is established, obtains hazard-affected object under object representation model
Expression, as shown in table 2, table 2 is object representation model and object representation result table.
Table 2
3) disaster severity space is built
The condition of a disaster information in table 1, determines the title of the condition of a disaster key element, and the value of different key elements is determined in conjunction with expertise
Domain, structure disaster severity space, and expression of the condition of a disaster in the condition of a disaster severity space is obtained, as shown in table 3, table 3 is the condition of a disaster
Severity space and the condition of a disaster expression of results table.
Table 3
4) accident scene is built
Based on object representation model and the condition of a disaster severity space, and the information such as the condition of a disaster origin cause of formation, counter-measure is combined, structure is prominent
Hair event scene, as shown in table 4, table 4 are accident scenario table.
Table 4
5) Spatial-Temporal Frame that scene develops is built, accident scene chain is generated, realizes the structuring of accident case
Expression.
The contact of scene in time is established according to the condition of a disaster duration, according to the spatial relationship of carrying object, is established
The contact of scene spatially, generates accident scene chain, realizes the structuring expression of accident case, as shown in table 5,
Table 5 is the case representation result table based on multidimensional scene.
Table 5
The case representation method based on multidimensional scene proposed according to embodiments of the present invention, it is hazard-affected right to establish to describe
The object representation model of elephant and to describe the condition of a disaster severity space of the condition of a disaster severity；By build accident scene and its
The Spatial-Temporal Frame of differentiation, has carried out accident case the expression of structuring, so that the perfect intension of accident scene；
And the consistent object representation model of homogeneous object and the condition of a disaster severity space contribute to the similarity assessment between scene；The condition of a disaster is tight
Severe space simplifies the assessment of the order of severity to different the condition of a disasters；The Spatial-Temporal Frame aid decision making person that scene develops from the time and
Two, space aspect more completely recognizes the condition of a disaster change procedure of accident case.
Multidimensional scene expression device under the Spatial-Temporal Frame proposed according to embodiments of the present invention referring next to attached drawing description.
Fig. 4 is the structure diagram of the multidimensional scene expression device under the Spatial-Temporal Frame of the embodiment of the present invention.
As shown in figure 4, the multidimensional scene expression device 10 under the Spatial-Temporal Frame includes：Information extraction module 100, object are built
Mould module 200, the condition of a disaster modeling module 300, scene modeling module 400, case representation module 500.
Wherein, information extraction module 100 is used to extract the hazard-affected object information and hazard-affected object the condition of a disaster in case data
Relevant information includes：The description information of the condition of a disaster state, the relevant information of the information of the condition of a disaster origin cause of formation and the condition of a disaster reply and the condition of a disaster letter
Breath, and the Spatial Data Model for obtaining accident place establishes module.Object modeling module 200 is used for according to hazard-affected object information
Establish the object representation model of similar hazard-affected object.The condition of a disaster modeling module 300, for being established according to the condition of a disaster information of hazard-affected object
To describe the condition of a disaster severity space of the hazard-affected object the condition of a disaster order of severity.Scene modeling module 400 is based on object representation model
With the condition of a disaster severity space, and combine the condition of a disaster Genesis Information and the condition of a disaster reply information, build accident scene.Believed according to the condition of a disaster
Breath extraction the condition of a disaster key element, and then establish the condition of a disaster severity space of given object class set.Case representation module 500 is according to the condition of a disaster
Relevant information and accident place spatial data, establish scene differentiation Spatial-Temporal Frame, formed accident case structure
Change expression.
Further, in one embodiment of the invention, accident scene is to hazard-affected object in specific time period
The structural description of Disaster Event state and its origin cause of formation and counter-measure, is identified with s；Hazard-affected object refers to what is influenced by disaster
Spatial entities, are identified with e, and E represents the countably infinite set being made of hazard-affected object；Disaster Event is had been described in detail suffered by hazard-affected object
The disaster arrived influences, and is identified with d, and D represents the countably infinite set being made of Disaster Event；The Disaster Event origin cause of formation refers to cause the condition of a disaster to produce
Immediate cause, identified with Cause；The counter-measure of Disaster Event is to refer to control or eliminate disaster to hazard-affected object influences
Measure, and then protect the purpose of hazard-affected object, identified with Action.
Further, in one embodiment of the invention, wherein, expression A of the object under object representation model is obtainedπ
(e),e∈Eπ, to obtain the structuring of object expression；Obtain Disaster Event d, the projection in the condition of a disaster severity spaced
∈Dπ, to obtain the severity of Disaster Event；The origin cause of formation Cause and event of Disaster Event are matched according to the severity of Disaster Event
Counter-measure Action, obtain the scene corresponding to Disaster Event dBuild
The corresponding scene of vertical Disaster Event.
Further, in one embodiment of the invention, case representation module is further used for given burst thing
Part case, and the expression of same target difference scene time relationship is established, and qualitative description same stage, different accident feelings
Spatial topotaxy, Spatial Direction Relations and the space length relation of scape, and describe in a text form in different disasters
The natural climate condition of developing stage, including：Temperature, weather, wind direction and wind speed.
It should be noted that the foregoing explanation to the case representation embodiment of the method based on multidimensional scene is also applied for
Multidimensional scene expression device under the Spatial-Temporal Frame of the embodiment, details are not described herein again.
The case representation device based on multidimensional scene proposed according to embodiments of the present invention, it is hazard-affected right to establish to describe
The object representation model of elephant and to describe the condition of a disaster severity space of the condition of a disaster severity；By build accident scene and its
The Spatial-Temporal Frame of differentiation, has carried out accident case the expression of structuring, so that the perfect intension of accident scene；
And the consistent object representation model of homogeneous object and the condition of a disaster severity space contribute to the similarity assessment between scene；The condition of a disaster is tight
Severe space simplifies the assessment of the order of severity to different the condition of a disasters；The Spatial-Temporal Frame aid decision making person that scene develops from the time and
Two, space aspect more completely recognizes the condition of a disaster change procedure of accident case.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or
Position relationship, is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
Combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this area
Art personnel can be tied the different embodiments or example described in this specification and different embodiments or exemplary feature
Close and combine.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
- A kind of 1. case representation method based on multidimensional scenario models, it is characterised in that comprise the following steps：Hazard-affected object the condition of a disaster in hazard-affected object information and description different periods is extracted according to the related data of accident case Information；Classified according to the object properties information to the hazard-affected object, to form multiple object class sets, and for one Given object class set, extracts the shared object properties with expression and significance of this class object, establishes object representation model；The condition of a disaster key element is extracted from the condition of a disaster information, establishes the condition of a disaster severity space of the object class set；It is specific with reference to the condition of a disaster information of extraction, structure based on the object representation model and the condition of a disaster severity space The accident scene of space-time；The condition of a disaster information and the object geographic spatial information with reference to the extraction, establish the Spatial-Temporal Frame of scene differentiation, establish The space-time connection of the accident scene, completes the structuring expression to the accident case.
- 2. the case representation method according to claim 1 based on multidimensional scene, it is characterised in that the accident feelings Scape is to use s to the Disaster Event state and its structural description of the origin cause of formation and counter-measure of the hazard-affected object in specific time period Identified；The hazard-affected object refers to the spatial entities influenced by disaster, is identified with e, E represent by hazard-affected object formed can Manifold；The disaster that the Disaster Event has been described in detail suffered by hazard-affected object influences, and is identified with d, and D is represented by Disaster Event group Into countably infinite set；The Disaster Event origin cause of formation refers to the immediate cause for causing the condition of a disaster to produce, and is identified with Cause；The disaster thing The counter-measure of part is the measure for referring to control or eliminating disaster to hazard-affected object influences, and then protects hazard-affected object Purpose, is identified with Action.
- 3. the case representation method according to claim 1 based on multidimensional scenario models, it is characterised in that the Object table Include up to model：Clustering objects, extraction have the shared object properties of expression and significance and form object representation model, wherein,The clustering objects are：For hazard-affected object e, the classification for remembering e is class (e)=π, the set E induced by ejOne It is a to be divided into：[e]=Eπ, represent EjThe set that middle all categories are made of the object of π, claims EπFor object class set；The shared object properties of the expression and significance are：Given object properties ai, for given object class setIf aiIt is ej Have the object properties of expression and significance for arbitraryAll set up, then aiIt isOne have the shared of expression and significance Object properties, wherein, it is described have expression and significance object properties be：Give an object properties ai, a under n evaluation indexi Expression and significance evaluation be scored at：0≤xj≤ 1, j=1,2..., n, overall merit score are denoted asFor given threshold alpha (0 ＜ α ＜ 1), ifThen claim aiTo there is expression and significance Object properties, otherwise claim aiFor the object properties of no expression and significance；The object representation model is：Give an object class setIfIt is rightaiIt is the object properties that e has expression and significance, claimsForObject representation model, claim aiForThere is table The shared object properties for justice of expressing one's ideas.
- 4. the case representation method according to claim 1 based on multidimensional scenario models, it is characterised in that the condition of a disaster is tight Severe space includes：Determine the condition of a disaster key element and establish the condition of a disaster severity space, wherein,The condition of a disaster key element is to describe the index of the condition of a disaster order of severity, is made of element name and key element value two parts, wherein, institute State element name and describe a kind of specific disaster Failure type with character string, the key element value illustrates the journey of disaster destruction Degree, key element codomain, which is one, sequel, and index is marked the more serious disaster of bigger key element value degree of correspondence and destroyed；The condition of a disaster severity space is：Give an object class setNoteDisaster Event collection beNoteAll The collection of the condition of a disaster key element composition is combined intoClaimForScene space.
- 5. the case representation method according to claim 2 based on multidimensional scenario models, it is characterised in that wherein,Obtain expression A of the object under object representation modelπ(e), e ∈ Eπ, to obtain the structuring of object expression；Obtain Disaster Event d, the projection in the condition of a disaster severity spaceTo obtain the severity of Disaster Event；The origin cause of formation Cause of the Disaster Event and the counter-measure of event are matched according to the severity of the Disaster Event Action, obtains the scene corresponding to Disaster Event dEstablish the disaster thing The corresponding scene of part.
- 6. the case representation method according to claim 1 based on multidimensional scenario models, it is characterised in that described to establish calamity The Spatial-Temporal Frame that feelings develop, further comprises：An accident case is given, expresses the time relationship of the accident scene of same hazard-affected object；An accident case is given, is expressed in same disaster developing stage, spatial topotaxy, the sky of accident scene Between distance relation and Spatial Direction Relations；An accident case is given, describes the natural climate condition in different disaster developing stage in a text form, Including：Temperature, weather, wind direction and wind speed.
- A kind of 7. case representation device based on multidimensional scene, it is characterised in that including：Information extraction module, extracts the information and the Disaster Event that occurs of object of the hazard-affected object self-characteristic in case data Information；Object modeling module, establishes the object representation model of similar hazard-affected object；The condition of a disaster modeling module, establishes the condition of a disaster severity space for describing the hazard-affected object the condition of a disaster order of severity；Scene modeling module, based on object representation model and the condition of a disaster severity space, and with reference to the condition of a disaster Genesis Information and calamity Feelings tackle information, build accident scene；Case representation module, according to the relevant information of the condition of a disaster and the spatial data in accident place, establish scene differentiation when Empty frames frame, forms the structuring expression of accident case.
- 8. the case representation device according to claim 7 based on multidimensional scenario models, it is characterised in that the burst thing Part scene is to use s to the Disaster Event state and its origin cause of formation of hazard-affected object and the structural description of counter-measure in specific time period Identified；The hazard-affected object refers to the spatial entities influenced by disaster, is identified with e, E represent by hazard-affected object formed can Manifold；The disaster that the Disaster Event has been described in detail suffered by hazard-affected object influences, and is identified with d, and D is represented by Disaster Event group Into countably infinite set；The Disaster Event origin cause of formation refers to the immediate cause for causing the condition of a disaster to produce, and is identified with Cause；The disaster thing The counter-measure of part is the measure for referring to control or eliminating disaster to hazard-affected object influences, and then protects hazard-affected object Purpose, is identified with Action.
- 9. the case representation device according to claim 7 based on multidimensional scenario models, it is characterised in that wherein,Obtain expression A of the object under object representation modelπ(e), e ∈ Eπ, to obtain the structuring of object expression；Obtain Disaster Event d, the projection in the condition of a disaster severity spaceTo obtain the severity of Disaster Event；The origin cause of formation Cause of Disaster Event and the counter-measure Action of event are matched according to the severity of Disaster Event, obtains calamity Scene corresponding to evil event dEstablish the corresponding scene of Disaster Event.
- 10. the case representation device according to claim 7 based on multidimensional scenario models, it is characterised in that the case Expression module is further used for giving an accident case, and establishes the expression of same target difference scene time relationship, And qualitative description same stage, spatial topotaxy, Spatial Direction Relations and the space length relation of different accident scenes, And the natural climate condition in different disaster developing stage is described in a text form, including：Temperature, weather, wind direction and Wind speed.
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Application publication date: 20180420 |