7 results about "Accuracy and precision" patented technology

The invention discloses a microblog emotion analysis method based on standard dictionaries and semantic rules. The microblog emotion analysis method comprises the following steps: collecting microblog data and manually labeling and marking the emotion value of each microblog; proposing corresponding standard micrblog emotion dictionaries, and establishing an emotion dictionary database; based on the standard emotion dictionaries, adding the semantic rules for assistance, and performing parameter adjustment and optimization on parameters of the semantic rules; based on a real dataset experiment, acquiring the final classification accuracy and precision. The technical scheme provided by the invention is adopted to well analyze the emotion tendency of each microblog user by introducing the standard emotion dictionaries, microblog expression dictionaries and the semantic rules, therefore, higher classification accuracy and precision are achieved.

The invention relates to a long-gap discharge leader development speed measurement method based on radiated electromagnetic wave detection. The method comprises a set of high-frequency antennas and a high-speed oscilloscope and a long-gap discharge leader development speed calculating method. The method adopts a certain antenna arrangement form; long-gap discharge radiated electromagnetic wave pulse time is detected simultaneously through the plurality of antennas; leader head position is positioned according to time difference of a signal arriving at different antennas; and furthermore, the long-gap discharge leader development speed can be calculated. The method can effectively improve the measurement precision of the discharge leader development speed, and resolution reaches the level of 0.1 ns.

This invention provides a modeling method for the shear force of a crescent-shaped shear blade, comprising the following steps: 1) expanding and parameterizing the theoretical shear blade arc into a function based on its formation process; 2) calculating the slope of each point on the arc; 3) determining the shear angle at each point on the arc based on the slope in step 2); 4) calculating the Nosari shear force using the shear blade shear's Nosari formula; 5) calculating the shear force at each point on the arc based on step 4); and 6) identifying the point with the maximum shear force within the range of the arc's values ​​as the design basis for the crescent-shaped shear blade. The data used in this modeling process are readily available, thus avoiding the impact of measurement errors on the shear force data, resulting in high calculation accuracy and precision. This invention solves the modeling problem for calculating the shear force of a crescent-shaped shear blade, transforming a complex model into a simple one, saving time, and offering low cost and high flexibility.

The application discloses a detection method for the pitch diameter of a metric internal thread, which comprises a universal toolmaker's microscope (or a flash tester), a steel ball for measurement, a strong magnet and geometric formulas. The main principle is that the steel ball is uniformly distributed in the internal thread groove, the steel ball is then attracted by the strong magnet, the measured product and the steel ball are placed under the universal toolmaker's microscope for measurement, the distance from the center of the steel ball to the center of the internal thread is measured, and finally, the pitch diameter value of the internal thread is calculated by using geometric formulas. The application has the advantages of simplicity, reliability, low cost, high popularization rate, high efficiency, high detection accuracy and precision, and suitability for scenes with strict requirements on the pitch diameter of the thread and the need for accurate data.

The present invention relates to a fixed-type roll alignment state detection and measurement system and, more particularly, to a fixed-type roll alignment state detection and measurement system which detects and measures an alignment state of measurement rolls on the basis of a measurement reference point, to acquire information on the alignment state of each of the rolls, that is, the horizontality and parallelism of each roll itself, and is fixedly installed on each of the measurement rolls to detect and measure the alignment state to acquire alignment state information of each of the rolls in real time and monitor the alignment state of each roll itself to maintain and manage the alignment state of the entire roll process line, thereby maximizing the accuracy and precision of the roll process line.

The invention provides an interference measurement method and device. The method can comprise the following steps: receiving first information; the first information is used for indicating X measurement reports and P CLI measurement resources. The X measurement reports are measurement reports used for CLI measurement. One of the X measurement reports is associated with N CLI measurement resource sets. Wherein each CLI measurement resource set comprises at least one CLI measurement resource. X, P and N are positive integers. And sending the second information. The second information is used for indicating the first CLI measurement result. The first CLI measurement result comprises a CLI measurement result corresponding to the target measurement report. Wherein the X measurement reports comprise the target measurement report. According to the invention, a plurality of measurement reports and a plurality of CLI measurement resources are configured for the terminal, and each measurement report is associated with one or more CLI measurement resource sets. Therefore, the terminal can more flexibly measure the CLI generated by different interference terminals, and the accuracy and precision of interference measurement are improved.

The present application provides an interference measurement method and an apparatus. The method may comprise: receiving first information, the first information being used for indicating X measurement reports and P CLI measurement resources, the X measurement reports being measurement reports used for CLI measurement, and a measurement report among the X measurement reports being associated with N CLI measurement resource sets, wherein each CLI measurement resource set comprises at least one CLI measurement resource, and X, P and N are positive integers; and sending second information, the second information being used for indicating a first CLI measurement result, and the first CLI measurement result comprising a CLI measurement result corresponding to a target measurement report, wherein the X measurement reports include the target measurement report. In the present application, a plurality of measurement reports and a plurality of CLI measurement resources are configured for a terminal, each measurement report being associated with one or more CLI measurement resource sets. Therefore, the terminal can more flexibly measure CLI generated by different interfering terminals, thereby improving the accuracy and precision of interference measurement.