3results about How to "Calculations are clear" patented technology

The invention discloses a multi-modal large model training method, and relates to the technical field of artificial intelligence, and the method comprises the steps: data collection, preprocessing, feature extraction, multi-modal fusion, and model training. During preprocessing, for temperature, humidity and pressure parameters, abnormal value analysis is carried out by calculating an average value and a standard deviation, and a model is obtained; calculating an intermediate value by using front and back normal values to replace an abnormal value; for coordinate position information, calculating a direction angle according to adjacent coordinates, comparing the direction angle with a threshold value to judge abnormity, and replacing abnormal coordinates with middle coordinates of front and back normal coordinates; a feature extraction link: calculating a temperature change rate mean value of adjacent nodes as a feature coefficient according to the temperature; calculating the mean value of the humidity and the absolute value of the mean value difference; the pressure adopts a maximum and minimum parameter difference value; calculating a speed mean value of adjacent nodes according to coordinates; calculating a fusion feature vector according to a preset weight during multi-modal fusion; according to the method, multi-modal data can be effectively processed, and the model performance and accuracy are improved.

This invention discloses a method for calculating the position of the main flow line in a 90° bend river, belonging to the fields of hydraulics and river dynamics. By combining the geometric characteristics of the bend with hydrodynamic conditions, and introducing dimensionless parameters such as relative bend radius, Froude number, and relative water depth, a calculation formula for the lateral offset of the main flow line is established, thereby determining the spatial coordinates of the main flow line. This method has a clear calculation approach, well-defined physical meanings of the parameters, and readily available parameters. It is applicable to the hydrodynamic analysis of 90° bend rivers and can provide a reference for riverbed scouring and deposition analysis and engineering design in bend rivers, demonstrating good applicability and potential for wider application.

The invention discloses an automobile pollutant emission evaluation method based on analytic hierarchy process and basic data. The method comprises the following steps: (1) constructing an evaluation model; (2) managing the evaluation basic data according to time; (3) converting the basic data into an EAPC index; (4) determining a free weight coefficient in each evaluation level; (5) calculating a pollutant comprehensive AHP index; (6) carrying out AHP index positive value; (7) constructing an AHP judgment matrix by using the AHP index; (8) calculating an evaluation weight coefficient according to the AHP judgment matrix; (9) checking the consistency of the AHP judgment matrix; (10) carrying out normalization processing on the pollutant index values; and (11) summing the evaluation weight coefficient of each pollutant index and the normalized index product to obtain the pollutant comprehensive evaluation index of the evaluation subject. According to the invention, an objective, fair and comprehensive automobile pollutant comprehensive evaluation result is provided based on multi-standard decision analysis and public data.