818 results about "Analytical hierarchy process method" patented technology

The invention provides a grid security comprehensive evaluation method which includes that a set of complete two-stage in-advance comprehensive evaluation index system and an each-stage security evaluation index calculating method are built aiming at the requirement of grid security operation evaluation, a grid security comprehensive evaluation model based on a gray area correlation analysis method and the game theory is further provided, initial evaluation is conducted on each one-stage index by the model, an obtained evaluation result is subjected to comprehensive evaluation, a correlation coefficient matrix of each one-stage index is determined by adopting the gray area correlation analysis method, weights are obtained by utilizing a game collection model pair analytic hierarchy process (AHP), an artificial neural network (ANN) and an entropy weight method and are objectively combined to obtain a combined weight, initial evaluation is conducted on each one-stage index, the AHP is adopted to determine a one-stage index weight, and the one-stage index weight and an initial evaluation result are subjected to weighing calculation to further obtain a grid security comprehensive evaluation result, namely the grid security quality ordering.

An optimal site selection device for a distributed wind power plant based on a fuzzy analytic hierarchy process comprises a DSP (Digital Signal Processor) module, a keyboard input module, a liquid crystal display module, a communication module and a host computer. An optimal site selection method for the distributed wind power plant based on the fuzzy analytic hierarchy process comprises the following steps: dividing candidate wind energy resource zones in a region rich in wind energy resources, determining an evaluation index system for the site selection of the wind power plant, determining the hierarchical structure of a scheme for the site selection of the wind power plant, judging the cognition degrees of experts on selected sites for the wind power plant by an expert group judgment and group decision method to obtain the cognition degree parameters of all the experts, and constituting a criterion layer judgment matrix and an index layer judgment matrix for the site selection of the wind power plant; and finally ranking the candidate wind energy resource zones by advantages and disadvantages and determining one site for the wind power plant. Compared with the traditional analytic hierarchy process for site selection, the method has the advantages that factors are fully considered, the examination and the regulation of the consistency of the judgment matrixes are simple, easy, scientific and reasonable, and results are scientifically analyzed. The device has the advantages that through the operation processing process of the DSP, the site selection period can be shortened, and the site selection efficiency can be increased.

The invention discloses a comprehensive evaluation method and system of an overall state of a transmission cable. The method comprises the steps of determining an evaluation factor set U, a state set V and a factor and state matrix W based on the transmission cable, establishing a judgment matrix R based on the transmission cable, determining an evaluation factor weight vector A, conducting fuzzy comprehensive operation, and using a maximum membership degree principle to fuzzify to obtain a final result of state evaluation. According to the technical scheme, the respective advantages of fuzzy mathematics and an analytic hierarchy process are combined, and the analytic hierarchy process is used for conducting comprehensive evaluation on the entire state of the transmission cable.

The invention discloses a heterogeneous network multi-attribute decision-making method based on a network analytic hierarchy process. According to the method, when computing network attributes weight, attributive interaction and feedback in a dynamic network are considered, influence on network selection of a target network is also considered, physical truths for decision problems of a heterogeneous network are well fit, and a low-delay and low-quivering network can be selected under a real-time voice service. Concrete steps comprise that weight is firstly calculated; attributive factors affecting the network selection and the target network are divided into a functional group, a cost group and a scheme group; mutual relation between intra-groups and between-group elements and mutual relation between groups are set up; judgment matrixes of pairwise comparison according to the analytic hierarchy process are set up, feature vectors are obtained, submatrixes are formed, and all the submatrixes form a non-weighted hypermatrix, and an ultimate hypermatrix and ANP weight are obtained through weighting and exponentiation operating of the hypermatrix; and then the ANP weight and normalization network parameters obtain network power functional values, the network power functional values are sorted, and the largest utility value is selected to serve as the target network.

The invention discloses a meteorological service performance evaluation method based on a geographical information system (GIS), which is used for carrying out meteorological service performance analysis and evaluation by comprehensively utilizing a neural network method, an analytic hierarchy process, a structural equation method, a gray system method and a statistical analysis technique through using corresponding social statistics and survey data. The method is used for carrying out uniform control and management on hydrologic information, humanity information and meteorological information in a researched region by using a cartographic database and remote sensing data as basis geospatial data through using population data, casualty loss data and geographical hydrologic thematic data based on a GIS technology and a database technology by adopting a design mode of centralized management and maintenance. The invention realizes graphic and feature integrated maintenance management, comprehensive query, space analysis, thematic map, simulation analysis and meteorological service evaluation functions, improves the informatization level and the aid decision making capability of the meteorological service evaluation, and provides aid decision basis for the geographical hydrologic management and the meteorological service performance evaluation.

The invention discloses an application value evaluation method for using a building information model (BIM) in constructional engineering. The method comprises: establishing a constructional engineering BIM application value index system; establishing a structural analysis model; calculating index weight of the BIM value index system; performing consistency detection; and performing comprehensive analysis and evaluation. According to characteristics and difficulties of engineering construction, on the basis of index analysis, the method establishes the constructional engineering BIM application value index system, and uses an analytic hierarchy process and an expert scoring method to solve a problem that the BIM application value is difficult to quantitatively evaluated, and realizes application management and effect evaluation of the BIM application value index of owners. The method is more accurate in application value evaluation of the BIM technology in construction project management, and provides convenience for owners to perform effectiveness evaluation and BIM application management, so as to prevent, control, and reduce engineering risks in a targeted manner, and improve engineering management effect.

The invention discloses an evaluation method applied to the field of risk analysis of a railway signal system. The method comprises the steps of firstly, formulating the levels of risk of the railway system, expressing a cloud model for evaluating the levels of risk by a forward cloud generator of a MATLAB simulation software, and generating a standard risk grade evaluation set cloud model figure; marking the failure mode of a function by an expert according to the formulated levels of risk to obtain a risk factor set, and converting the risk factor set into a comprehensive evaluation matrix R; utilizing an analytic hierarchy process to obtain risk factor set weight coefficients corresponding to all parameters in the risk factor set by the expert, and calculating a comprehensive evaluation result cloud model figure by fuzzy synthetic operator; comparing the comprehensive evaluation result cloud model figure with the standard risk grade evaluation set cloud model figure to obtain the level of risk of the comprehensive evaluation result. After the method is adopted, the risk evaluation result is more objective and accurate.

The invention provides an evaluating method for compressibility of a shale reservoir. The evaluating method comprises the following steps that standardized treatment is conducted on the parameter values of the five factors with different units and different dimensions influencing the compressibility of the shale reservoir by adopting range transformation or empirical assignment to obtain standardized values, wherein the five factors comprise the brittleness index, the brittle mineral content, the natural weak surface, the ground stress difference coefficient and the rock formation effect, theinfluencing weight of the five factors on the compressibility of the shale reservoir is determined by adopting an analytic hierarchy process to obtain the weight coefficient, weighting processing is conducted on the obtained standardized values and the weight coefficient to obtain the compressibility coefficient of the shale reservoir, and evaluating is conducted on the compressibility of the shale reservoir by using the obtained compressibility coefficient. By means of the evaluating method, whether the shale reservoir can be pressurized can be evaluated quantitatively, and an idea and methodare provided for the quantitative evaluation of the compressibility.

The invention provides a domain name service quality evaluation method. The domain name service quality evaluation method comprises the steps that a plurality of indexes related to domain name service quality and weights of the indexes are determined on the basis of the analytic hierarchy process; data, related to the indexes, of each domain name to be evaluated are acquired, and a score, obtained according to each index, of each domain name to be evaluated is obtained; a comprehensive score of each domain name to be evaluated is calculated on the basis of the scores, obtained according to all the indexes, of the domain name and the weights of the indexes. According to the domain name service quality evaluation method, the weights of the indexes are set on the basis of the analytic hierarchy process, the weights are adjusted on the basis of the acquired data of the domain names, as a result, the importance degrees of the indexes can be reflected by the weights more accurately, and the distinction between the domain names with good service quality and the domain names with poor service quality is more obvious. Therefore, domain name service quality can be reflected more objectively and more accurately, certain unsafe domain names or bad websites can be filtered out for a user, and the user can be helped to select the domain names with good performance.

The invention discloses a satellite health state multistage fuzzy evaluation method based on an AHP-entropy weight method. The method includes: constructing a system weight system comprising a subjective weight, an objective weight and a comprehensive weight, providing the accurate comprehensive weight for the fuzzy comprehensive evaluation method by adopting an analytic hierarchy process and an entropy weight method, providing the subjective weight by adopting the analytic hierarchy process, providing the objective weight by adopting the entropy weight method, and obtaining the subjective andobjective combined comprehensive weight from the subjective and objective weights through an optimization function; constructing a system evaluation system comprising a factor discourse domain, a comment set, a membership function, an evaluation matrix and multi-stage fuzzy evaluation; and comprehensively evaluating the use state of the on-orbit satellite, evaluating each layer of elements through a membership principle of fuzzy comprehensive evaluation, and then sequentially recursively evaluating the overall health state from bottom to top by adopting a multi-stage fuzzy comprehensive evaluation method. The method improves the safety and reliability of a satellite system, reduces the effective life cycle operation cost, and guarantees the smooth completion of an in-orbit satellite task.

The invention discloses a vehicle-mounted edge network task distribution and unloading method based on a deep Q network, and the method comprises the steps: firstly carrying out the priority divisionof calculation tasks of different vehicle terminals according to an analytic hierarchy process, and giving different weights to the processing rates of the calculation tasks to establish a relation model; secondly, introducing an edge calculation method based on the deep Q network, establishing a task unloading model with the calculation task processing rate weighted sum as the optimization target, establishing a terminal autonomous optimal task unloading strategy based on the deep Q network, and the long-term stability and effectiveness of an unloading decision making model are guaranteed. Byreasonably distributing and unloading the vehicle-mounted computing tasks, the processing speed of the computing tasks is effectively increased, and therefore the task execution time delay is reduced.

A technical method of diagnosing rationality of city spatial patterns includes the following steps: 1, constructing an index system comprising a master target layer, a sub-target layer, a factor layer and a divisor layer; 2, after standard data processing, using an analytic hierarchy process and an entropy weight process to determine a weight of the divisor; 3, constructing HL comprehensive diagnosis models for rationality of city developing patterns, the models comprising a scale pattern USR diagnosis model, a spatial pattern UKR diagnosis model and a function pattern UFR diagnosis model; 4, using a fuzzy membership grade function process and a linear weighting summation process to calculate a rationality index for each sub-model; and 5, dividing cities into a highly reasonable city, a relatively reasonable city, an intermediate reasonable city, a lowly reasonable city, and an unreasonable city according to HL comprehensive indexes. The comprehensive diagnosis index system provided by the present invention has universality and comprehensiveness, and has availability and effectiveness when evaluating the data. The completed system evaluating method enables the calculated result of the rationality indexes of the urban developing patterns to be more accurate, and achieves a more scientific evaluation of the urban developing patterns.

The invention discloses a power distribution equipment state evaluation method based on variable weight and fuzzy comprehensive evaluation. The power distribution equipment state evaluation method comprises the steps of 1, selecting evaluation indexes; step 2, index weight primary distribution: adopting an analytic hierarchy process, establishing a comparative judgment matrix by comparing the importance between every two evaluation factors, and finally calculating a feature vector under the maximum feature value to obtain the weight of each index; step 3, calculating the health state score ofeach index; step 4, weight redistribution: carrying out weight redistribution, wherein xi is the health state score value of the ith index; step 5, performing fuzzy decision index normalization processing; step 6, calculating a membership function; step 7, establishing a fuzzy evaluation matrix; step 8, determining an evaluation result by utilizing a membership degree maximum principle. The problem that in the prior art, when power distribution equipment is evaluated, other indexes with small weights cannot correctly reflect the health state of the equipment due to the fact that the indexes with large weights have too large influences on the equipment is solved.

The invention discloses a man-machine function allocation method of a civil aircraft cockpit, which sequentially comprises the following steps: comparing man-machine advantageous capabilities, determining the weight coefficient of each element in a capability advantage set by using an analytic hierarchy process, dividing the automation level of a civil aircraft cockpit system, determining the range of the automation levels based on the comparison of the man-machine advantageous capabilities, setting a function allocation evaluation criterion set, and finally determining the automation level of the man-machine function allocation of the cockpit. The invention can overcome the defect of strong subjectivity in the traditional qualitative analysis method.

The invention discloses a grid planning method considering the difference of the risk tolerance of regional distribution networks. The grid planning method comprises the following steps that aiming atthe problems of large difference of the risk tolerance of the distribution networks in town regions and large load fluctuation of the town regions in a rural power grid reconstruction project, a non-parametric kernel density estimation method is used for expressing the uncertainty of the load; the difference of ability of the distribution networks in withstanding the operational risks caused by the uncertainty of the load in the town regions is taken into account, and a risk tolerance evaluation index system of the regional distribution networks is established by being combined with the characteristics of the distribution networks in the town regions; the combination weighting method based on the analytic hierarchy process and the entropy weight method is adopted to evaluate; and a chance-constrained programming model for circuit upgrading and selection is established, and according to evaluation results of the risk tolerance of the distribution networks in the town regions, the confidence level of chance constraint conditions is selected in a differentiation mode, so as to achieve the coordination of the risk tolerance and investment costs of the regional distribution networks and achieve lean investment.

The invention discloses a COVID-19 real-time risk prediction method, which comprises the following steps of: acquiring epidemic risk evaluation data and social vulnerability evaluation data; establishing an infection number attenuation equation and an epidemic situation propagation dynamics model; predicting epidemic risk evaluation data according to an infection number attenuation equation and anepidemic propagation dynamics model; establishing an entropy-analytic hierarchy process combined model; carrying out epidemic risk prediction according to the entropy-analytical hierarchy combined model, the epidemic risk evaluation data and the social vulnerability evaluation data; and drawing an epidemic risk prediction grade map. The method provides support for later epidemic prevention and control decisions, and can be used for emergency prediction of risks in new epidemic situation occurrence periods or other sudden public safety events in the future.

The invention discloses a method for evaluating sea rescue capability. The method comprises the following steps that: S1, a plurality of evaluation indexes for evaluating the sea rescue capability are determined, relationships between the evaluation indexes are analyzed through using an ISM (interpretation structure model) method, the plurality of evaluation indexes are divided into a plurality of levels, and the interpretation structure model of the sea emergency response capacity evaluation indexes is obtained; S2, the importance of the multi-level evaluation indexes in the interpretation structure model is sorted according to analytic hierarchy process (AHP), the weight of each evaluation index is calculated, and then, a weight vector composed of the weight values of the evaluation indexes can be obtained; and S3, a multi-level fuzzy evaluation model is built based on a membership function and according to the interpretation structure model and the weight vector, and the emergency response rescue capacity of a sea emergency response rescue unit can be comprehensively evaluated. With the method of the invention adopted, the sea rescue capability of a maritime sector in the vicinity of a certain sea area can be effectively evaluated. The method has high practicability.

The invention discloses a missile performance evaluation method based on an improved analytic hierarchy process. The method comprises the following steps: determining an association relationship and amembership relationship between missile performance evaluation factors, and establishing a hierarchical model; Taking each element in the hierarchical model as an evaluation index, arranging the relative quality order of each evaluation index according to a 7-scale method, and sequentially constructing a judgment matrix of the evaluation indexes; Calculating the weight of the judgment matrix andthe product of each element in each row of the judgment matrix, and carrying out normalization processing to obtain a weight vector matrix; By utilizing a calculation result of hierarchical single sorting, synthesizing a superior and inferior order of a higher hierarchy, and performing weighted calculation to realize hierarchical total sorting to obtain a scheme weight matrix; And calculating evaluation index values of the evaluated objects through an entropy weight method, and processing results of the analytic hierarchy process and the entropy weight method according to a Lagrangian multiplier method to obtain a new weight which is a final result. The method has the advantages of simple calculation and high efficiency, and the evaluation result is objective and reliable.