31results about How to "Avoid subjective arbitrariness" patented technology

The invention discloses a high-speed press sliding block dimension robust design method based on an interval. The method comprises the steps that a robust design model including design variables and interval uncertainty parameters is built according to the design needs of a high-speed press sliding block dimension, the response values of an objective function and a constraint function which correspond to sampling points are obtained, the function relationship between the design variables and the uncertainty parameters and a design target is determined according to sampling point information, a polynomial model of the objective function and the constraint function is built according to the least squares criterion, the matching precision of the polynomial model is detected, and iteration optimization is carried out by combining the polynomial model and a double nested genetic algorithm. According to the method, non-probability robustness design is carried out based on interval mathematics according to the design needs of the high-speed press sliding block dimension, and a robust and optimal high-speed press sliding block design scheme can be obtained conveniently.

The invention discloses a comprehensive energy system evaluation method and system based on optimal combination weighting. The method belongs to the technical field of comprehensive energy system evaluation and comprises the steps that an evaluation index system of a comprehensive energy system with p layers is established according to all evaluation indexes of the comprehensive energy system, thefirst layer is a quantitative evaluation result of the comprehensive energy system, and the p layer is a (p-1)-level evaluation index; acquiring numerical values corresponding to the evaluation indexes under different configuration schemes, and constructing an index evaluation standardized decision matrix; calculating subjective weight and objective weight of each evaluation index by adopting a subjective and objective combination weighting method; according to elements, subjective weights and objective weights in the standardized decision matrix, comprehensive energy system evaluation results under different configuration schemes are obtained, and the configuration scheme corresponding to the maximum evaluation result serves as the optimal comprehensive energy system configuration scheme. The subjective and objective combination weighting method is adopted, the evaluation result is more scientific, and the practicability is high.

The invention discloses a water resource bearing capacity evaluation method. The method comprises the following six steps of: firstly, determining an evaluation index weight by utilizing an information entropy principle; secondly, constructing a set pair model of an evaluation region and water resource bearing capacity evolution, introducing a concept of contact numbers, and contacting the identical discrepancy contrary of the set pair model; thirdly, based on an evaluation index system, calculating the contact numbers of each layer respectively from the bottom to the top, obtaining the contact number of the last layer in turn by combining a weight vector, and analogizing one by one by obtain the contact numbers of the overall system; fourthly, determining the values of the contact numbers of the systems at each level and a principal value of an n-component contact number by utilizing an equipartition principle; fifthly, equally dividing an interval [-1,1] into n levels by utilizing the equipartition principle according to the concept of the contact numbers to obtain n level intervals; and finally, comparing the values of the contact numbers of each level in the fourth step and the n level intervals divided equally in the fifth step, and analyzing the average mu is positioned in which interval, wherein the level corresponding to the interval in which the average mu is positioned is the evaluation level of the water resource bearing capacity.

The invention discloses a method and a system for automatically adding internal links. The method comprises the following steps of: performing word cutting on received entry information to acquire a keyword; fetching a vocabulary to which an internal link is to be added from the keyword according to a preset fetching strategy; and automatically adding the internal link to the vocabulary to which the internal link is to be added. Through an automatic addition strategy of the system, labor input is reduced, and the internal link number and accuracy of encyclopedia entries are greatly improved while the internal links of the encyclopedia entries are enriched to a certain extent; for a browse user, a large quantity of time and experiences are not required to be spent to retrieve and search related difficult terms, the extended reading experience is improved, and search cost is reduced; for an edit user, labor cost generated by adding the internal links to related entries is saved, the subjective randomness of manually adding the internal links is avoided, and the pertinence and effectiveness of the internal links are improved; and for a management team, cost generated by manually auditing edit versions of the added internal links is greatly reduced.

The invention discloses a source network load storage coordination level evaluation method based on a risk thought. The source network load storage coordination level evaluation method is characterized in that a source-grid-load-storage coordination level evaluation model is provided under the background that the source-grid-load-storage coordination optimization mode becomes the development trendof the power system; the source-grid-load-storage coordination level evaluation model firstly analyzes internal and external uncertain factors affecting the coordination ability of the system based on the idea of risk identification, and then establishes an evaluation index system considering multi-agent interaction and layering; and secondly, the source-grid-load-storage coordination level evaluation model proposes a quantitative calculation method of quantitative indexes and a processing mode of qualitative indexes, establishes a source-network-load-storage coordination level evaluation model, and determines the weight of each level of indexes by using an analytic hierarchy process and a Delphi method in combination with an empowerment method. According to the constructed evaluation model, the source-grid-load-storage coordination level of the power system is scientifically and systematically evaluated for planning schemes of three areas of a certain province, and a decision reference is provided for planning and operation scheme optimization of the power department, and the intrinsic safety level of the system can be improved.

The invention relates to an inferior-quality meat color determining device and an inferior-quality meat determining method after livestock slaughter, belonging to the field of meat product detection. In the inferior-quality meat color determining device after livestock slaughter, a sample is placed on a sample stage in a camera obscura, a CCD (Charge Coupled Device) camera and a lens obtain images of the sample and a color board, image information is transmitted to a meat color determination unit, and the meat color determination unit processes the images and determines whether the meat color of the sample is the same with that of inferior-quality meat, wherein detection is convenient and intelligent, subjectivity of graders in sensory detection can be avoided, and the determination accuracy is high. In the inferior-quality meat determining method after livestock slaughter, whether the meat color of the sample is the same with that of the inferior-quality meat can be conveniently and accurately determined by the inferior-quality meat color determining device, the pH value of the sample can be measured by a meat-used pH meter, and whether the sample is inferior-quality meat can be determined according to the measured meat-color determination value and the pH value.

The invention relates to a concrete slump inference method based on a mix proportion and raw material performance. According to the method, the accumulation gap condition of sandstone, the sandstone proportion, the mucilage flowing property, the mucilage filling gap degree, the additive water reducing property and the like are merged into a mathematical formula; the quantitative relation among thedosage proportion of concrete raw materials, performance indexes and the slump of a mixture is disclosed, and the method can be used for designing and examining the mix proportion of concrete and controlling the mixing production quality.

The invention provides a vertical and horizontal optimized combination diagnosis technical method for an urban industrial structure, which comprises the steps of: 1, performing vertical diagnosis by using a data envelopment analysis (DEA) model and urban industry time serial data in recent n years; 2, performing horizontal diagnosis by using a principal component analysis (PCA) model and industrial cross-sectional data in each urban administrative district of the latest year in recent n years; and 3, weighting and summing the vertical diagnosis result and the horizontal diagnosis result, calculating and obtaining optimized combination diagnosis index (CDI) of the urban industrial structure, and judging the optimized degree of the urban industrial structure according to the size of the CDI. The combination diagnosis technical method has the characteristics of systematicness, comprehensiveness and maneuverability, so the method can provide comprehensive, objective and scientific optimized decisions and regulate and control basis for optimizing the urban industrial structure.

The invention provides a method of evaluating construction safety management performance. The method of evaluating construction safety management performance includes the steps: determining the planned safety cost and the practical safety cost of a target construction project; constructing a safety management performance evaluation index system of the target construction project; determining the practical safety management level Sb of the target construction project by using a factor set fuzzy comprehensive evaluation method; determining the planned safety management level Sa of the target construction project; and according to the safety management performance evaluation index system and the preset performance evaluation criterion, using a safety earned value method to perform construction safety management performance evaluation on the planned safety cost of the target construction project, the practical safety cost of the target construction project, the practical safety managementlevel Sb of the target construction project, and the planned safety management level Sa of the target construction project.

The invention belongs to the field of large-scale weapon equipment value evaluation, and particularly discloses a large-scale weapon equipment value evaluation method based on an improved comprehensive innovation rate. The method comprises the steps of constructing an index system for large weapon equipment value evaluation; establishing a relational expression among the comprehensive formation new rate, the element layer and the index layer by taking the element layer of the to-be-evaluated large weapon equipment as an element and the index layer as a matter element based on a comprehensive formation new rate evaluation model of an extension theory; calculating the weight of each index layer; according to the weight of each index layer, calculating the correlation degree between the comprehensive new rate and the evaluation grade; and according to the expression of the comprehensive innovation rate, the correlation degree of the comprehensive innovation rate and the evaluation grade and the evaluation value calculation model of the large-scale weapon equipment to be evaluated, obtaining the evaluation value of the large-scale weapon equipment to be evaluated. According to the method, the applicability of the cost method in the aspect of large weapon equipment value evaluation is improved, and meanwhile, the characteristics of high reliability and relatively simple operation ofthe cost method are considered.

The invention discloses a cloud model-based ability evaluation method for an air defense and antimissile command and control model. The method comprises the following steps that 1, a model ability evaluation index system has m evaluation indexes, and the subjective and objective comprehensive weights of the evaluation indexes are calculated; 2, a sample matrix Xi (xi1, xi2,..., xim) is determined according to the evaluation values of the m evaluation indexes, i = 1, 2,... n, and digital characteristics of m evaluation index clouds are obtained through a reverse cloud generator, namely (Ex1, Ex2,..., Exm; En1, En2,..., Enm; He1, He2,..., Hem); and 3, a comprehensive evaluation cloud C (Ex, En, He) is obtained by combining the subjective and objective comprehensive weight calculated in the step 1 and each ability index evaluation cloud. According to the method, a subjective and objective comprehensive weighting method based on AHP and RAGA-PPC is adopted, evaluation is more objective and real, subjective randomness of evaluation results is avoided, and meanwhile quantitative processing of qualitative indexes is achieved by introducing a cloud model.

The invention discloses a comprehensive index system bridge comparison and selection method based on typical environment differences. The method includes the following steps: firstly, dividing the typical environments; then constructing an analytic hierarchy structure model, constructing a judgment matrix of each hierarchy, and calculating a weight; and then determining an evaluation standard and a scoring detailed rule, and finally performing evaluation and selecting an optimal bridge selection scheme according to an evaluation result. The invention provides a bridge type selection method for comprehensive indexes in a comprehensive index system based on typical environment differences, aiming at the problems of incomplete bridge type selection evaluation indexes, indefinite index weights, lack of objective evaluation standards, strong subjective experience dependence and high sensitivity to single index evaluation results at present. By adopting the method, bridge type selection can be effectively carried out; compared with an existing bridge type selection method, the method has the characteristics of low dependence on decision makers, higher system reliability and low sensitivity to index misjudgment and evaluation errors.

The invention discloses a method for objectively evaluating a software service value. The method comprises the following steps of: determining an evaluation dimension of a software service and acquiring corresponding dimension data; solving a Pareto optimal set on the basis of a Pareto dominance concept; calculating a weight factor of each evaluation dimension in the Pareto optimal set based on the variable coefficient; normalizing all the sample data; and calculating a comprehensive score of the software service through a weighted sum model. According to the method, human factors are removed,subjective randomness is avoided, and an evaluation result is more objective and accurate; the weight of each evaluation dimension is determined through the optimal sample set, and compared with a mode of using all samples, the method has relatively high robustness.