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54 results about "Standard result" patented technology

Cross-language text classification method based on cross-language word vector representation and classifier joint training

A cross-language text classification method based on cross-language word vector representation and classifier joint training is disclosed. The invention relates to a cross-language text classificationmethod and aims to solve the problem that an existing method based on synonym replacement has low classification accuracy, an existing translation-based method has high accuracy but the training of atranslator requires a large amount of corpus, the training takes a long time, the task complexity and the time consumption are far more than that of a simple task of text categorization, and so the existing translation-based method is not practical. The method of the invention comprises the steps of (1) performing corpus preprocessing, (2) optimizing a total loss function by a gradient optimization method so that the total loss function reaches a minimum value, wherein the total loss function is corresponding to a set of word vectors and a classifier, and (3) taking a label with a highest probability as a classification result of a test text on a target end language T, comparing the result with a standard result of a test set, and obtaining test accuracy and a recall rate index. The method is used in the field of cross-language text classification.
Owner:HARBIN INST OF TECH

Urine detection method based on intelligent mobile terminal

The invention provides a urine detection method based on an intelligent mobile terminal. The method comprises the following steps: obtaining images of color blocks at a test paper and a test paper strip after a urine reaction as sample image information; extracting the color characteristic of the sample image information; inputting the color characteristic of the sample image information in nervenetwork for trainning to obtain the urine standard results; establishing a mapping relation model of the color characteristic and the detection result, writing the nerve network and a mapping relationmodel in an intelligent mobile terminal, and collecting the urine through the intelligent mobile terminal and the image information after the test paper strip is reacted as the to-be-measured image information; extracting the color characteristic of the to-be-measured image information and inputting the color characteristic in the nerve network, trainning the color characteristic of the to-be-measured image information in the nerve network and performing comparison according to the mapping relation model and the urine standard result, and outputting the urine detection result of the current users. The method completely realizes accurate urine detection without diagnosis in a hospital for a user, tedious queuing and diagnosis in the hospital for each time detection can be avoided, the operation is convenient, the cost is low, and the urine detection convenience is increased.
Owner:CHONGQING JIAOTONG UNIVERSITY

Low resource domain word splitter training method based on transfer learning and word splitting method

The invention discloses a low resource domain word splitter training method based on transfer learning and a word splitting method. The method comprises the steps of 1, conducting training in a targetdomain and all set domains respectively to generate corresponding word splitters; 2, using the word splitters of all the domains to conduct corpus word splitting processing on the target domain to obtain the implicit strata representation of each word xi on the corpus of the target domain of all the word splitters; 3, calculating the relevancy of the implicit strata representation of all the wordsplitters on the word xi and the implicit strata representation of the word splitters t of the target domain on the word xi, and obtaining weight vectors of the word splitters of all the domains on the word xi according to the relevancy; 4, weighing and summing the implicit strata representation of all the word splitters according to the weight vectors, obtaining the final implicit strata representation, and calculating labels of the word xi through the final implicit strata representation; 5, obtaining the word splitters of the target domain according to prediction labels and the standard result training of all words. By means of the low resource domain word splitter training method based on the transfer learning and the word splitting method, the word splitting effect of the low-resource domain corpus of the word splitters is greatly improved.
Owner:PEKING UNIV

Automatic evaluation method for Python drawing program questions

The invention relates to an automatic evaluation method for Python drawing program questions. The method of combining static evaluation and dynamic evaluation is used for carrying out automatic evaluation on Python drawing program questions. The static evaluation method comprises the following steps: analyzing lexical and grammar of a source program to be tested, and comparing the lexical and grammar with lexical and grammar analysis results of a standard source program for scoring; the dynamic evaluation method comprises the following steps: running a to-be-tested program according to a testcase, and comparing a running result with a standard result for scoring; and when the motion result is unique, unloading the drawing result as an SVG file, and scoring the to-be-tested program according to the similarity of the SVG file.; and when the running result is not unique, running the to-be-tested program according to the test case, extracting the color or shape feature of the drawing result image or the combination of the color and shape features, and comparing the drawing result image with the standard result image for scoring. The Python drawing source program is automatically evaluated by combining the static evaluation method and the dynamic evaluation method, great convenience is brought to Python teaching evaluation, and the evaluation efficiency is improved.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Test method and test device for image processing algorithm

The invention relates to a test method and a test device for an image processing algorithm. The method comprises the following steps: receiving a test request for a to-be-tested image processing algorithm, obtaining a test set and an algorithm configuration file corresponding to the to-be-tested image processing algorithm, and sending the test set and the algorithm configuration file to a test terminal, so that the test terminal processes the test set according to a to-be-tested image processing algorithm in the algorithm configuration file to obtain a processing result, and generating a testresult of the to-be-tested image algorithm based on the processing result returned by the test terminal and a preset standard result. According to the invention, the efficiency of testing the image processing algorithm can be improved. Different comparison calculation types are used for evaluation according to different image processing algorithms, so that a test result is more targeted and more objective, platform testing of the image processing algorithms is realized through interaction between the test terminal and the test server, manual intervention can be reduced, and the labor force oftest personnel is reduced.
Owner:BEIJING DAJIA INTERNET INFORMATION TECH CO LTD

Method for calculating probability of dangerous failure on demand (PFD) and probability of dangerous failure per hour (PFH) in two out of four channel logic structure system

The invention discloses a method for calculating a probability of dangerous failure on demand (PFD) and a probability of dangerous failure per hour (PFH) in a two out of four channel logic structure system. The method includes firstly calculating a common cause failure probability of the PFD and the PFH respectively according to a common cause failure formula of a common channel logic structure, then calculating formulas of probabilities of non-common cause danger failure which occurs in different channels of four channels respectively, and adding the formulas of the probabilities of non-common cause danger failure of different channels and the corresponding common cause failure formula to obtain a calculating method of a danger failure rate of the four channel logic structure. According to the method for calculating the PFD and the PFH in the two out of four channel logic structure system, a result obtained by the method is verified to be completely identical to a standard result and is capable of meeting normative requirements when compared with the result obtained through a reliability basic theory method. Calculating formulas can be directly written without establishing models, and the calculating result is more accurate and low in time consumption.
Owner:CHINA TECHENERGY +1

Method and device for determining calibration interval of electronic measurement equipment

The invention discloses a method and a device for determining a calibration interval of electronic measurement equipment, wherein the method and the device are used for settling a technical problem ofinsufficient measuring or excessive measuring which is easily caused in calibrating the electronic measurement equipment by means of a fixed calibration interval in prior art because of a relativelyhigh difference between a production process of the electronic measurement and a using environment and an operation condition. The method comprises the steps of acquiring historical calibration data of to-be-calibrated electronic measurement equipment, and establishing a historical standard time interval sequence and a historical standard result sequence according to the historical calibration data; solving a likelihood function model according to the historical standard time interval sequence and the historical calibration result sequence, and obtaining the parameter of a reliability model inthe likelihood function model which is established based on electronic measurement equipment calibration qualification probability distribution; determining the target value of the reliability model,calculating the time value of the reliability model according to the target value and the parameter, and using the time value as the calibration interval of the electronic measurement equipment.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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