57 results about "Similarity test" patented technology

To enhance the distribution or backup of data similar to previously distributed or backed up data, to provide similarity testing, and other benefits, a first body of data T of size n is compressed with respect to a second body of data S of size m in-place; that is, the memory containing S is overwritten from left to right so that at no time is more than a total of MAX{m,n}+O(1) memory used.

To enhance the distribution or backup of data similar to previously distributed or backed up data, to provide similarity testing, and other benefits, a first body of data T of size n is compressed with respect to a second body of data S of size m in-place; that is, the memory containing S is overwritten from left to right so that at no time is more than a total of MAX{m,n}+O(1) memory used.

The invention discloses a full-frame electronic image stabilization method based on feature matching, which belongs to the technical field of digital image processing and aims at eliminating influences on a video sequence by jitter such as camera translation and rotation and generating stable full-frame video output. The method comprises steps: firstly, an ORB feature descriptor is adopted to extract feature points in each frame, a two-level matching strategy with minimum and second minimum Hamming distance ratio judgment in combination with coordinate and direction angle difference test is used for matching feature points in adjacent frames; then, a motion parameter estimation method with triangle area similarity test in combination with RANSAC is used for estimating and accumulating inter-frame affine transformation parameters; and finally, an image mosaic technique is used for acquiring a motion compensation mosaic image, subjective motion parameters of the camera are estimated through Kalman filtering, a display window with the same size as the video frame is set on the mosaic image sequentially, and complete motion compensation frame output is obtained. Translation and rotation jitter in the original video sequence are effectively removed, and the stable full-frame output is obtained.

The invention discloses an artificial intelligence-based text checking method and device. One specific implementation mode of the method comprises the following steps: respectively performing word segmentation on a first text to be checked and a second text to be checked, and determining a word vector of each segmented word to generate a first word vector sequence and a second word vector sequence; respectively inputting the first word vector sequence and the second word vector sequence into a pre-trained convolutional neural network including at least one multi-scale convolutional layer, and determining each vector sequence in multiple vector sequences output by the last multi-scale convolutional layer as a feature vector sequence, thus obtaining a feature vector sequence group corresponding to each text; combining all the feature vector sequences in each feature vector sequence group, thus generating a combined feature vector sequence; analyzing the generated combined feature vector sequence, and determining whether the first text and the second text pass through similarity test or not. The implementation mode improves the flexibility of text checking.

The invention discloses a deep confined water mining fault water inrush multi-field precursor information evolution similarity test device and method, and relates to the field of formation temperatureand similar simulation tests. The test device comprises a test bracket, a lateral baffle plate, a loading plate, a transparent glass plate, a model storage cavity, a lateral pressure loading system,a vertical loading system, a water pressure loading system, a water temperature adjusting system, a ground temperature adjusting system, a signal acquisition and processing system and a test model. The water pressure loading system, the water temperature adjusting system and the ground temperature adjusting system of the test device can provide stable high-temperature and high-pressure water and gradient formation temperature for the test model; the real geomechanical environment of the deep confined water fault-containing coal measure strata can be well simulated; real reproduction of multi-field precursor information of deep confined water mining fault water inrush is facilitated, and the evolution rule, coupling characteristics and influence factors of multi-field precursor informationsuch as fault surrounding rock stress, displacement, cracks, seepage and temperature in the deep confined water mining fault water inrush process are inversely analyzed.

The invention provides a satellite structure heat stability testing method. A satellite structure material object scaling-down model is used for replacing a satellite structure material object for performing a heat stability similarity test, and the heat stability of the satellite structure material object is obtained through a similar mathematic relation and a model testing result; the satellite structure material object is satellite parts or components. The satellite structure material object scaling-down model is used for replacing the material object for testing, the whole process of whole structure heat deformation under the circumstance can be clearly and visually shown, and therefore the problems that the period is long, consumption is large and even a test cannot be performed when the material object is used for the heat stability test are solved.

Disclosed is a modem that uses information from prior modem calls in a current modem call if the current communication line has the same characteristics as the communication line of a prior call. During modem training, a determination is made as to whether the characteristics of the current communication line is substantially similar to the characteristics of a communication line used during at least one prior call. If the characteristics are substantially similar, the stored data mode information from the prior call(s) is used to design a signal constellation for use during the current call's data mode. If the characteristics are not substantially similar, then full modem training is performed and data mode information is stored for use during subsequent calls. In addition to the communication line similarity test, line quality evaluation may also be performed in order to determine whether there has been a change in the quality of the communication line between the current call and prior call(s). If there has been no change in line quality, then a signal constellation is designed using stored minimal signal distance from one or more prior calls. If there has been a change for the better in line quality, then a signal constellation is designed having a smaller minimal signal distance than the one or more prior call's signal constellation. If there has been a change for the worse in line quality, then a signal constellation is designed having a larger minimal signal distance than the one or more prior call's signal constellation.

A method, executed by a processor, for determining similarity between messages includes calculating a syndrome of each of first and second messages with respect to a linear code. A difference between the syndromes of the first and second messages is calculated, and a vector that minimizes a metric in a coset defined by the syndrome difference is identified. A compact representation of the second message that is based upon the first message is generated when a metric of the identified vector is less than or equal to a predetermined threshold. The compact representation of the second message is stored in a location of a memory device assigned for storing the second message, when the metric of the identified vector is less than or equal to the predetermined threshold.

The invention relates to the technical field of computer aided design, and particularly relates to a method for the rapid selection of similar graphics and applied to the CAD. The method comprises the steps of 1, inputting a to-be-selected CAD drawing of similar graphics; 2, selecting a similar graphic A according to the input CAD drawing; 3, judging whether other graphics other than the similar graphic A, and non-contrast graphics exist in the input CAD drawing or not; on the condition that the above graphics still exist in the input CAD drawing, conducting the step 4; otherwise, conducting the step 8; 4, freely selecting one graphic B from the non-contrast graphics; 5, conducting the similarity test on the graphic B and the graphic A; 6, judging whether the graphic B and the graphic A pass the similarity test or not; if not, returning to the step 3; if yes, conducting the step 7; 7, selecting the graphic B; 8, ending the process. Compared with the prior art, whether two graphics are geometrically similar to each other or not can be automatically judged, so that the manual comparison and judgment is avoided. Meanwhile, all similar graphics can be quickly selected through one key, so that the CAD efficiency is greatly improved. Meanwhile, the function of distinguishing between rotation angles / not distinguishing between rotation angles can be selected, so that the selection flexibility of similar graphics is improved.

The present invention relates to an industrial APP selection and aggregation method based on an industrial operating system, in particular to the technical field of industrial system data processing, including step S1, searching for the types and quantities of selectable industrial APPs; step S2, selecting Analyze the functions of industrial APPs; step S3, select and match industrial APPs according to the functions of various industrial APPs that can be selected to form several matching groups. Set the quantity Ci of the matching group according to the quantity A of the matching group, and set the number of APPs in the matching group according to the number Ci of the matching group; step S4, carry out a similarity test to the industrial APPs in the matching group, and the inspection module checks each APP one by one. The allocated matching group is subjected to a similarity test; step S5, the functions of the industrial APPs in the tested matching group are aggregated to form an aggregation unit. The invention effectively solves the problem of information islands between different industrial APPs.

The invention discloses an iterative learning model behavior similarity test case generation method and apparatus. The method comprises the steps of firstly constructing a system state machine diagram according to a system state model; secondly generating a new test case set according to the system state machine diagram, an existing test case set and corresponding test results of the existing test case set; thirdly executing the generated test cases and recording the test results; fourthly updating the test results into the system state machine diagram and updating the existing test case set; and finally repeating the processes until a stop condition is met. According to the method and apparatus, the quality of the test cases generated during each iteration is improved through a historical information-based heuristic rule to reduce the frequency of exploration in a test case space so as to improve the efficiency of a test process.

The invention provides a method for building rough stochastic discrete joint network models, and belongs to the field of technologies for modeling complex joint rock mass. The method includes surveying rock mass structural planes and identifying information; digitally representing spatial distribution of geometric morphology of the rick mass structural planes; statistically analyzing probability models of geometric occurrence information of the structural planes; creating stochastic rough geometric joint curves corresponding to the geometric morphology; creating model interfaces of Matlab and mechanical analysis software PFC by the aid of digital image processing technologies; physically modeling built RDFN models by the aid of 3D (three-dimensional) printers to provide the models for indoor similarity tests. The method has the advantages that representation processes and model bases can be provided for reasonable research on mechanical characteristics of joint rock mass, and scientific bases can be provided for guiding rock and soil engineering construction, support designs and the like by achievement.