3 results about "Measurement theory" patented technology

The invention provides an asphalt pavement comprehensive performance evaluation method based on an unascertained measurement theory, and relates to the technical field of road engineering, and the method comprises the following steps: establishing a performance index system of an asphalt pavement, and determining a to-be-evaluated road section; determining a grading standard matrix based on the performance index data; establishing a measurement function parameter optimization framework, establishing a measurement function set, and optimizing parameters of measurement functions; calculating a single-index measurement value of the to-be-evaluated road section in the evaluation grade space based on the measurement function to obtain a single-index measurement matrix; calculating a combined weight vector of each index; calculating a comprehensive measure evaluation matrix of the to-be-evaluated road section by combining the single-index measure matrix and the combined weight vector; and determining a final evaluation grade of the to-be-evaluated road section based on a confidence identification criterion. According to the method, comprehensive evaluation of the surface layer and internal performance of the asphalt pavement can be realized, and the technical defects of insufficient consideration of internal diseases, single evaluation index, unreasonable weight distribution and the like in a traditional evaluation method are overcome.

The application discloses a rumor propagation model establishment method considering emotional and information popularity driving, and relates to the technical field of social network modeling and analysis. The application aims at the phenomenon of spreading rumors in online social networks by using audience emotions and information pressure, combines micro node emotional driving force and macro information popularity driving force to construct the cooperative propagation probability of nodes, and establishes a rumor propagation model considering user micro emotions and topic popularity by means of emotion analysis, rumor evolution and node contribution degree measurement theories. The application overcomes the problem that the past rumor propagation model only considers group node propagation probability and ignores the synergistic effect of macro and micro levels, thereby simulating a more realistic rumor propagation process, which is beneficial to subsequent rumor propagation form prediction and research on propagation blocking mechanism.

The invention discloses a railway engineering low-carbon construction evaluation method based on an improved G2-AEW-UMT model, and relates to the technical field of railway low-carbon construction, and the method comprises the steps: constructing a railway engineering low-carbon construction evaluation index system; collecting index system sample data, and performing dimensionless preprocessing on the index system sample data by using an extreme value standardization method to obtain an index set; constructing a subjective and objective fusion dynamic weight distribution mechanism based on the index set; and evaluating the low-carbon construction grade of the railway engineering in combination with an unascertained measurement theory and a confidence identification criterion. According to the method, accurate rating of the low-carbon level in the construction stage is achieved, an innovative methodological tool is provided for improving the standardization level of railway engineering green construction, and the core problem that an existing evaluation system is insufficient in operability is effectively solved.