8 results about "Comparative test" patented technology

This disclosure provides a method, apparatus, device, and storage medium for A / B testing, relating to the field of computer technology, and particularly to the field of computer testing technology. The specific implementation scheme is as follows: Traffic is randomly divided into group A and group B, with group A and group B having equal amounts of traffic; group A is randomly and equally divided into at least two subgroups of traffic; group B is also randomly and equally divided into at least two subgroups of traffic, with each subgroup of group B having equal amounts of traffic to each subgroup of group A; the subgroups of traffic are then permuted and combined to obtain at least four pairs of subgroups; multiple comparative tests are performed using at least four pairs of subgroups of traffic to obtain the A / B test results. The A / B test results obtained using the above method are more stable and reliable compared to the test results obtained using only one pair of traffic groups.

The invention relates to the technical field of stress simulation, and discloses a movable fire resistance test furnace with a stress simulation device, which comprises a test furnace, a first test tank and a second test tank, a tension test rod and a torsion test rod are symmetrically arranged in each of the first test groove and the second test groove, a driving assembly and a clamping assembly are arranged in the test furnace, and the driving assembly comprises eight positioning blocks; through the design of the double independent test grooves, different temperatures or the same tensile force can be synchronously applied, a contrast test can be carried out on two samples, and contrast data of fire resistance and stress performance can be rapidly obtained. Self-adaptive adjustment is achieved through cooperation of the helical tooth transmission rod and the arc-shaped helical rack set, even if one side of the special-shaped sample is clamped firstly, the clamping plate on the other side can still be driven to continuously move till the special-shaped sample is stably fixed, the clamping universality and stability are greatly improved, and it is guaranteed that the special-shaped sample is stressed in a balanced mode in the testing process.

Aspects of the disclosure provide methods, apparatuses, and storage media for processing of media presentation ratings. In some examples, processing circuitry receives a score by a subject rating a media presentation. The subject's score includes a plurality of self-comparison scores rated to a self-comparison test in the media presentation. The processing circuitry applies a first rule and a second rule to the plurality of self-comparison scores. The first rule requires a first subset of the plurality of self-comparison scores to be within a first range. The second rule requires a second subset of the plurality of self-comparison scores to be within a second range to limit at least one outlier to the first rule according to the second range. In response to the first rule and the second rule being satisfied, the processing circuitry determines that the subject's score is eligible for a subjective assessment.

This invention discloses a refined model test method, system, and equipment for the soil displacement effect of open-pit pipe piles, relating to the field of open-pit pipe pile driving technology. The method includes: establishing multi-physical quantity similarity criteria and determining similarity constants; based on the similarity constants, preparing grouting mixture and constructing a micro-reinforcing cage; using the micro-reinforcing cage and grouting mixture to construct an open-pit pipe pile model; establishing a model box, preparing soil samples with target density and homogeneity using a layered filling method within the box, and setting up a pile driving test platform; constructing a comparative test scheme, and simultaneously monitoring and recording pile driving data using the pile driving test platform; processing and comparing the pile driving data to obtain data criteria, providing a basis for optimizing open-pit pipe pile driving parameters and construction control. This invention solves the problems of incomplete model similarity relationships, single test monitoring dimensions, difficulty in quantifying and comparing results, and the inability to provide an operational basis for optimizing engineering construction parameters.

The invention relates to the field of finance and the technical field of computers, and discloses a data quality evaluation method and device, a medium and equipment, and the method comprises the steps: determining a basic quality score of target business data based on each quality evaluation index of the to-be-evaluated target business data; based on the target business data and a target model corresponding to the target business data, determining a training value score when the target model is trained by the target business data; performing an online comparison test based on the target business data to obtain an actual contribution score of the target business data; and based on the basic quality score, the training value score and the actual contribution score, determining a target score of the target business data to obtain a data quality evaluation result. According to the invention, multi-dimensional evaluation of the data value is realized, and the accuracy of a quality evaluation result is improved.

This utility model belongs to the technical field of comparative test blocks and discloses a comparative test block for digital radiography (DR) pipe thickness measurement. It includes a magnetic block with a straight rod connected to its center. A stepped test block is installed in the middle of the straight rod, and a round bar is fixedly installed at the end of the straight rod. Based on the current availability of only one set of data to ensure the authority of the final data used, this method allows for the simultaneous acquisition of data from both the direct measurement method using a round bar and the experimental comparison method using a stepped test block in a single installation. The two sets of data are compared and verified, making the data more authoritative.

The invention relates to a method for analyzing target software (102, 200), in particular operating software for a technical system, e.g., a control unit (104), with regard to potentially harmful behavior, comprising: providing (216) target software data (212) comprising a decomposition, wherein the decomposition comprises functional blocks obtained or obtained by disassembling the target software (200); providing (224) malware data (220) comprising a plurality of decompositions, wherein the decompositions each comprise one or more of the functional blocks obtained or obtained by disassembling an attack vector; providing (240) a test set (234) of comparison tests (228, 230, 232), wherein the comparison tests each comprise a comparison instruction that specifies how the target software data is to be compared with a respective decomposition of the malware data;Analyzing (242) the target software data (212), based on the malware data (220) and the test set (234) of comparison tests, to obtain analysis result data (282); and providing the analysis result data;

This invention belongs to the field of aircraft manufacturing technology and discloses a non-destructive metrology method for detecting defects in comparative samples and the inner walls of holes. The sample includes a comparative test block with eddy current holes. The eddy current holes have notches, which include a first part and a second part. The first part has a triangular cross-section, and the second part has a rectangular cross-section. Only one of the first and second parts is present on the comparative test block. When the first part is present, it is located at the corner of the eddy current hole; when the second part is present, it is located on the inner wall of the eddy current hole. This configuration allows the comparative test sample to accurately reproduce defects in the inspected workpiece, meeting the verification requirements of eddy current testing technology for measuring the dimensions of hole sidewalls, hole corners, or features such as blind grooves. Furthermore, this non-destructive metrology method can be used to monitor the quality of defects in the inner walls of aerospace metal holes, thereby contributing to the improvement of quality and safety in aircraft manufacturing technology.