CN109766516A - Risk assessment index set construction method and device - Google Patents
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Abstract
The invention discloses a kind of risk assessment index set construction method and devices, wherein method is the following steps are included: obtain the risks and assumptions of multiple risk assessment, and generate the adjacency matrix between each risks and assumptions；Reachability matrix is obtained according to adjacency matrix, with hierarchical relationship between establishing element；According to level Relation acquisition index set structure chart between element.This method realizes that quantification characterizes the hierarchical relationship between each factor by matrix operation, realize the building of risk assessment index set, to optimize the science and reasonability of the building of risk assessment index set, foundation is provided for the specifics and specific aim of risk control, it is simple easily to realize.
Description
Technical field
The present invention relates to risk assessment technology field, in particular to a kind of risk assessment index set construction method and device.
Background technique
In risk assessment field, there are mainly two types of the construction methods of index set structure, first is that determined by expertise,
Second is that by using clustering as the statistical method of representative.
However, only being determined according to expertise or accident case analysis only by single expertise method
Which kind of evaluation index is selected, wherein the hierarchical relationship between each index factor determines that there are stronger subjectivities, and is lacked quantitative
The reasoning process of change, so that risk assessment lacks quantification characterization；And requirement of the statistical method to achievement data compared with
Often there is centainly restricted in actual operation in height.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of risk assessment index set construction method, this method can be excellent
Change the science and reasonability of risk assessment index set building, provides foundation for the specifics and specific aim of risk control, simply
Easily realize.
It is another object of the present invention to propose a kind of risk assessment index set construction device.
In order to achieve the above objectives, one aspect of the present invention embodiment proposes a kind of risk assessment index set construction method, packet
It includes following steps: obtaining the risks and assumptions of multiple risk assessment, and generate the adjacency matrix between each risks and assumptions；According to institute
It states adjacency matrix and obtains reachability matrix, with hierarchical relationship between establishing element；According to level Relation acquisition index set between the element
Structure chart.
The risk assessment index set construction method of the embodiment of the present invention realizes that quantification characterizes each factor by matrix operation
Between hierarchical relationship, realize risk assessment index set building, thus optimize risk assessment index set building science and
Reasonability provides foundation for the specifics and specific aim of risk control, simple easily to realize.
In addition, risk assessment index set construction method according to the above embodiment of the present invention can also have it is following additional
Technical characteristic:
Further, in one embodiment of the invention, the relational expression of the adjacency matrix are as follows:
A=(aij)n×n,
Wherein, aij=1, indicate that there are direct relationships between factor i and factor j；aij=0, indicate factor i and factor j
Between be not present direct relationship；N is positive integer.
Further, in one embodiment of the invention, hierarchical relationship between the establishing element, comprising: according to described
Reachability matrix asks individual and antecedent set to each risks and assumptions；It is obtained according to the individual with antecedent set
Elements combination, to obtain hierarchical relationship between the element.
Further, in one embodiment of the invention, in the elements combination, allow to reach institute from other elements
The element in elements combination is stated, and does not allow to reach other elements from the element in the elements combination.
Further, in one embodiment of the invention, described according to level Relation acquisition index set between the element
Structure chart further comprises: being placed the elements combination from top to bottom according to level order, and with oriented arrow or line segment generation
Relationship in relationship and same rank between the adjacent rank element of table between element, to build the level of each element in index set
Structure chart, wherein
During index set building, if there is the interactively that influences each other between the element, pass through
Artificial or quantitative evaluation is determined, with the interactively that influences each other described in elimination.
In order to achieve the above objectives, another aspect of the present invention embodiment proposes a kind of risk assessment index set construction device,
Include: the first acquisition module, for obtaining the risks and assumptions of multiple risk assessment, and generates the adjoining between each risks and assumptions
Matrix；Module is constructed, for obtaining reachability matrix according to the adjacency matrix, with hierarchical relationship between establishing element；Second obtains
Module, for according to level Relation acquisition index set structure chart between the element.
The risk assessment index set construction device of the embodiment of the present invention realizes that quantification characterizes each factor by matrix operation
Between hierarchical relationship, realize risk assessment index set building, thus optimize risk assessment index set building science and
Reasonability provides foundation for the specifics and specific aim of risk control, simple easily to realize.
In addition, risk assessment index set construction device according to the above embodiment of the present invention can also have it is following additional
Technical characteristic:
Further, in one embodiment of the invention, the relational expression of the adjacency matrix are as follows:
A=(aij)n×n,
Wherein, aij=1, indicate that there are direct relationships between factor i and factor j；aij=0, indicate factor i and factor j
Between be not present direct relationship；N is positive integer.
Further, in one embodiment of the invention, the building module is further used for according to the reachable square
Battle array asks individual and antecedent set to each risks and assumptions, and obtains element according to the individual and antecedent set
Set, to obtain hierarchical relationship between the element.
Further, in one embodiment of the invention, in the elements combination, allow to reach institute from other elements
The element in elements combination is stated, and does not allow to reach other elements from the element in the elements combination.
Further, in one embodiment of the invention, the second acquisition module is further used for suitable according to rank
Sequence places the elements combination from top to bottom, and with oriented arrow or line segment represent adjacent rank element between relationship and same
Relationship in rank between element, to build the hierarchical chart of each element in index set, wherein
During index set building, if there is the interactively that influences each other between the element, pass through
Artificial or quantitative evaluation is determined, with the interactively that influences each other described in elimination.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart according to the risk assessment index set construction method of one embodiment of the invention；
Fig. 2 is the structural schematic diagram according to the risk assessment index set construction device of one embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The risk assessment index set construction method proposed according to embodiments of the present invention and device are described with reference to the accompanying drawings, it is first
The risk assessment index set construction method proposed according to embodiments of the present invention is first described with reference to the accompanying drawings.
Fig. 1 is the flow chart of the risk assessment index set construction method of one embodiment of the invention.
As shown in Figure 1, the risk assessment index set construction method the following steps are included:
In step s101, the risks and assumptions of multiple risk assessment are obtained, and generate the adjoining between each risks and assumptions
Matrix.
It is understood that the embodiment of the present invention utilizes the characteristics of objects of risk assessment, specific accident case, expert consulting
The methods of, determine the Main Factors to carry out risk assessment, wherein risks and assumptions are Main Factors, need artificial subjectivity
Screening, while constructing the adjacency matrix between each factor.
Further, in one embodiment of the invention, the relational expression of adjacency matrix are as follows:
A=(aij)n×n,
Wherein, aij=1, indicate that there are direct relationships between factor i and factor j；aij=0, indicate factor i and factor j
Between be not present direct relationship；N is positive integer.
Specifically, adjacency matrix A is indicated to carry out the relationship of each factor of risk assessment between any two, expression formula
Are as follows:
A=(aij)n×n,
Wherein, if aij=1, indicate that there are direct relationships between factor i and factor j；From the point of view of accessibility, it can state
Directly to reach j from the path that factor i can be 1 by step-length.
If aij=0, it indicates that direct relationship is not present between factor i and factor j；From the point of view of accessibility, it can be expressed as
From the path that factor i can be 1 by step-length, j cannot be directly reached.
In step s 102, reachability matrix is obtained according to adjacency matrix, with hierarchical relationship between establishing element.
It is understood that the embodiment of the present invention constructs reachability matrix, and then basis according to the above-mentioned adjacency matrix acquired
Hierarchical relationship constructs between reachability matrix realizes element.
Hierarchical relationship building between building reachability matrix and element is explained in detail below in conjunction with embodiment.
Further, in one embodiment of the invention, hierarchical relationship between establishing element, comprising: according to reachability matrix
Individual and antecedent set are asked to each risks and assumptions；Elements combination is obtained according to individual and antecedent set, to obtain
Hierarchical relationship between element.
Wherein, in one embodiment of the invention, in elements combination, allow to reach in elements combination from other elements
Element, and do not allow to reach other elements from the element in elements combination.
Specifically, (1) constructs reachability matrix R
After acquiring connection matrix A, then ask A and unit matrix I's and A+I, the power operation of matrix A+I is done, in calculating process
Boolean calculation rule is followed, until following formula is set up:
R≠(A+I)≠(A+I)2≠ ...=(A+I)n=(A+I)n+1,
R=(rij)n×n,
Matrix R is reachability matrix.
If rijIt is 1, represents element aiTo element ajBetween there is accessibility paths, i.e. element aiAnd ajBetween exist it is straight
It connects or indirect relationship, can be classified as in same system unit.
If rijIt is 0, represents element aiTo element ajBetween be not present accessibility path, i.e. element aiAnd ajBetween be not present
Direct or indirect relationship can not be classified as in same system unit.
(2) hierarchical relationship constructs between element
Using reachability matrix R, to each element aiSeek following set:
P(ai)={ aj|rij=1 },
Q(ai)={ aj|rji=1 },
Wherein, P (ai) be known as individual, i.e., from element aiThe set for the whole elements that can be reached of setting out, i.e., by aiCause
The element collection that son influences, the corresponding element of column that can be 1 by searching for the i-th row upper value of reachability matrix R acquire.And Q (ai)
Referred to as antecedent set can reach element aiWhole elements set.It can be by searching on the i-th column of reachability matrix R
The corresponding element of row that value is 1 acquires.
Further according to P (ai), Q (ai) (i=1,2 ..., n), ask and meet each elements combination L that formula requires as follows1。
L1In element have the following characteristics that from other elements and can reach the element, and cannot be reached from the element other
Element, i.e. L1In element be element positioned at highest level (first order).Then, leave out L from original reachability matrix M1In
The corresponding row, column of element obtains matrix M ', and determination is equally operated to M ' progress and belongs to second level L2Element.It repeats later same
Operation, successively finds out L3,L4..., thus on each Key factor distribution to corresponding rank.
In step s 103, according to level Relation acquisition index set structure chart between element.
In one embodiment of the invention, according to level Relation acquisition index set structure chart between element, further comprise:
Elements combination is placed from top to bottom according to level order, and with oriented arrow or line segment represent adjacent rank element between relationship
And the relationship in same rank between element, to build the hierarchical chart of each element in index set, wherein in index set structure
During building, if there is the interactively that influences each other between element, determined by artificial or quantitative evaluation, with
Elimination influences each other interactively.
It is understood that putting first order L in top layer after the hierarchical relationship between element constructs1Element, here is
Second level L2Element, and so on, each element press from top to bottom level order place.And phase is represented with oriented arrow/line segment
Relationship in relationship and same rank between the other element of adjacent level between element, and then hit the target and collect the hierarchical structure of interior each element
Figure building.In addition, index set is in building process, it is of the invention when such as there is each other the case where influencing relationship between each other
Embodiment can be determined by panel of expert or other feasible quantitative evaluation methods again, eliminate this interaction
Relationship, to guarantee the independence of evaluation index.
To sum up, when the embodiment of the present invention selects index system method to carry out risk assessment, referred to based on explain the structural model
Mark collection structure is built, can quantification clear the hierarchical relationship between index factor, be reasonable, scientific, the risk of risk assessment
The specifics and specific aim of prevention and treatment provide foundation, to effectively solve the semidefinite when carrying out risk assessment using index system method
Quantization carries out the problem of index set building.Wherein, explain the structural model is a kind of combination of qualitative and quantitative analysis clearly to comment
Estimate the method for structural relation between index factor, the relationship two-by-two between index factor and each index to participate in matrix operation is
Expertise determination obtains, after matrix operation, can construct the level of index set by the accessibility between the factor, quantification
Structure.
The risk assessment index set construction method proposed according to embodiments of the present invention realizes quantification table by matrix operation
The hierarchical relationship between each factor is levied, realizes the building of risk assessment index set, to optimize the building of risk assessment index set
Scientific and reasonability provides foundation for the specifics and specific aim of risk control, simple easily to realize.
The risk assessment index set construction device proposed according to embodiments of the present invention is described referring next to attached drawing.
Fig. 2 is the structural schematic diagram of the risk assessment index set construction device of one embodiment of the invention.
As shown in Fig. 2, the risk assessment index set construction device 10 includes: the first acquisition module 100, building module 200
Module 300 is obtained with second.
Wherein, the first acquisition module 100 is used to obtain the risks and assumptions of multiple risk assessment, and generates each risks and assumptions
Between adjacency matrix.Building module 200 is used to obtain reachability matrix according to adjacency matrix, with hierarchical relationship between establishing element.
Second, which obtains module 300, is used for according to level Relation acquisition index set structure chart between element.The device 10 of the embodiment of the present invention is excellent
Change the science and reasonability of risk assessment index set building, provides foundation for the specifics and specific aim of risk control, simply
Easily realize.
One step, in one embodiment of the invention, the relational expression of adjacency matrix are as follows:
A=(aij)n×n,
Wherein, aij=1, indicate that there are direct relationships between factor i and factor j；aij=0, indicate factor i and factor j
Between be not present direct relationship；N is positive integer.
Further, in one embodiment of the invention, building module 200 is further used for according to reachability matrix to every
A risks and assumptions ask individual and antecedent set, and obtain elements combination according to individual and antecedent set, to be wanted
Hierarchical relationship between element.
Further, in one embodiment of the invention, in elements combination, allow to reach element collection from other elements
Element in conjunction, and do not allow to reach other elements from the element in elements combination.
Further, in one embodiment of the invention, the second acquisition module 300 is further used for according to level order
Elements combination is placed from top to bottom, and with oriented arrow or line segment represent adjacent rank element between relationship and same rank in
Relationship between element, to build the hierarchical chart of each element in index set, wherein in the process of index set building
In, if there is the interactively that influences each other between the element, determined by artificial or quantitative evaluation, to eliminate
The interactively that influences each other.
It should be noted that the aforementioned explanation to risk assessment index set construction method embodiment is also applied for the reality
The risk assessment index set construction device of example is applied, details are not described herein again.
The risk assessment index set construction device proposed according to embodiments of the present invention realizes quantification table by matrix operation
The hierarchical relationship between each factor is levied, realizes the building of risk assessment index set, to optimize the building of risk assessment index set
Scientific and reasonability provides foundation for the specifics and specific aim of risk control, simple easily to realize.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
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 spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of risk assessment index set construction method, which comprises the following steps:
The risks and assumptions of multiple risk assessment are obtained, and generate the adjacency matrix between each risks and assumptions；
Reachability matrix is obtained according to the adjacency matrix, with hierarchical relationship between establishing element；And
According to level Relation acquisition index set structure chart between the element.
2. risk assessment index set construction method according to claim 1, which is characterized in that the relationship of the adjacency matrix
Expression formula are as follows:
A=(aij)n×n,
Wherein, aij=1, indicate that there are direct relationships between factor i and factor j；aij=0, it indicates between factor i and factor j
There is no direct relationships；N is positive integer.
3. risk assessment index set construction method according to claim 1, which is characterized in that level between the establishing element
Relationship, comprising:
Individual and antecedent set are asked to each risks and assumptions according to the reachability matrix；
Elements combination is obtained according to the individual and antecedent set, to obtain hierarchical relationship between the element.
4. risk assessment index set construction method according to claim 3, which is characterized in that in the elements combination,
Allow to reach the element in the elements combination from other elements, and does not allow described in arrival from the element in the elements combination
Other elements.
5. risk assessment index set construction method according to claim 3 or 4, which is characterized in that described to be wanted according to
Level Relation acquisition index set structure chart between element further comprises:
The elements combination is placed from top to bottom according to level order, and represents adjacent rank element with oriented arrow or line segment
Between relationship and same rank in relationship between element, to build the hierarchical chart of each element in index set, wherein
During index set building, if there is the interactively that influences each other between the element, by artificial
Or quantitative evaluation is determined, with the interactively that influences each other described in elimination.
6. a kind of risk assessment index set construction device characterized by comprising
First obtains module, for obtaining the risks and assumptions of multiple risk assessment, and generates the adjoining between each risks and assumptions
Matrix；
Module is constructed, for obtaining reachability matrix according to the adjacency matrix, with hierarchical relationship between establishing element；And
Second obtains module, for according to level Relation acquisition index set structure chart between the element.
7. risk assessment index set construction device according to claim 6, which is characterized in that the relationship of the adjacency matrix
Expression formula are as follows:
A=(aij)n×n,
Wherein, aij=1, indicate that there are direct relationships between factor i and factor j；aij=0, it indicates between factor i and factor j
There is no direct relationships；N is positive integer.
8. risk assessment index set construction device according to claim 6, which is characterized in that the building module is further
For asking individual and antecedent set to each risks and assumptions according to the reachability matrix, and according to the individual
Elements combination is obtained with antecedent set, to obtain hierarchical relationship between the element.
9. risk assessment index set construction device according to claim 8, which is characterized in that in the elements combination,
Allow to reach the element in the elements combination from other elements, and does not allow described in arrival from the element in the elements combination
Other elements.
10. risk assessment index set construction device according to claim 8 or claim 9, which is characterized in that described second obtains mould
Block is further used for being placed the elements combination from top to bottom according to level order, and is represented with oriented arrow or line segment adjacent
Relationship in relationship and same rank between rank element between element, to build the hierarchical structure of each element in index set
Figure, wherein
During index set building, if there are interaction relationships between the element, by artificial or fixed
Quantitative evaluation is determined, to eliminate the interaction relationship.
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| CN201811645641.7A CN109766516A (en) | 2018-12-29 | 2018-12-29 | Risk assessment index set construction method and device |
| PCT/CN2019/128709 WO2020135587A1 (en) | 2018-12-29 | 2019-12-26 | Risk assessment index set construction method and apparatus |
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| CN110598973A (en) * | 2019-07-30 | 2019-12-20 | 北京信息科技大学 | IAP-based risk evaluation method for authentication process of green furniture product |
| CN111157680A (en) * | 2019-12-31 | 2020-05-15 | 北京辰安科技股份有限公司 | Indoor volatile substance leakage tracing method and device |
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| WO2020135587A1 (en) | 2020-07-02 |
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Application publication date: 20190517 |