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38results about How to "Exclude subjective factors" patented technology
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Spectrum wave number selection method
ActiveCN105630743AExclude subjective factorsImprove robustnessColor/spectral properties measurementsComplex mathematical operationsRe sequencingStatistical physics
The invention discloses a spectrum wave number selection method. Correction samples are randomly sampled many times according to wave numbers of spectra, a partial least square regression model is built, a variable projection importance coefficient of each wave number is calculated, the variable projection importance coefficients are sequenced in a descending mode, wave number sets corresponding to the distribution sequence are obtained, the re-sequenced wave number sets are subjected to wave number screening step by step, a result of each time of wave number selection is calculated, and a wave number primary selection set is obtained; then, absolute values of a partial least square regression coefficient of each wave number in the wave number primary selection sets is counted and correspondingly processed, the processed partial least square regression coefficients are sequenced in a descending mode, a corresponding wave number distribution sequence is recorded, then a strategy for reversely eliminating wake-correlation wave numbers is adopted, and the optimal feature wave number set is obtained. The method can fully mine effective information in wave numbers, effectively solves the subjectivity problem of wave number selection, extracts feature wave numbers to the largest extent, eliminates influences of weak correlation factors, and remarkably improves robustness and precision of the model.
Owner:ZHEJIANG UNIV
Operating device for densely-installed valves
PendingCN109578663AReasonable structural designSimple and safe operationOperating means/releasing devices for valvesSelf limitingReducer
The invention discloses an operating device for densely-installed valves. The problem that for dense valve tree using occasions, the operating space of an existing valve operating device is limited issolved. The operating device comprises a moving chassis, a multi-axis driving mechanism assembled on the moving chassis, and a self-limiting valve opening-closing device, and is characterized in thatthe self-limiting valve opening-closing device comprises a valve opening-closing transmission mechanism, a limiting compensator and a wrench which is of a clamping claw structure, the multi-axis driving mechanism is fixedly connected with a connection flange of the moving chassis through a base of a first RV speed reducer and orderly moves along with the moving chassis; and the valve opening-closing transmission mechanism composed of a telescopic rotation driving mechanism and a barrel body drives the wrench of the clamping claw structure through the limiting compensator, rotating is conducted while axial sliding is carried out, and valve opening, closing and adjusting are completed. The operating device is reasonable in structural design, safe, easy and convenient to operate, and quick and stable in operating, the operating enveloping space is not limited, manual valve operating can be effectively replaced, operating is more precise and reliable, and the operating efficiency is remarkably improved.
Owner:深圳中科捷飞科技有限公司
Device for measuring settling ratio and optimal settling ratio of sludge
PendingCN110702569ASolve the control index problem that is difficult to quantify the sedimentation ratioImprove measurement rateParticle suspension analysisAutomatic controlSludge
The invention discloses a device for measuring a settling ratio and an optimal settling ratio of sludge in a mechanical acceleration settling pond and a method for measuring the settling ratio and theoptimal settling ratio of sludge by using the device, wherein the device comprises a shell, a settling assembly, an interface observation assembly and a control assembly, and a cavity is arranged inthe shell; the settling assembly and the interface observation assembly are arranged in the cavity in the shell; the settling assembly comprises two settling pipes which are connected in series, the volume of a first settling pipe is larger than or equal to the volume of a second settling pipe, the first settling pipe communicates with the second settling pipe through a connecting pipe, and the settled and concentrated sludge liquid in the first settling pipe is injected into the second settling pipe. The device of the invention is a portable device with simple structure, small size and compactness, is automatically controlled, is capable of obtaining the settling ratio and the optimal settling ratio of the sludge in the sludge liquid, overcomes artificial subjective factors, has accuratedata measurement, can automatically sample and analyze settling characteristics of the sludge, and provides guidance parameters for tap water treatment operation.
Owner:北京市自来水集团有限责任公司技术研究院
Leukocyte image detection and recognition model construction method based on transfer learning and application
PendingCN111079620AAutomatic identificationAutomatic statisticsImage enhancementImage analysisWhite blood cellRadiology
The invention relates to a leukocyte image detection and recognition model construction method based on transfer learning and application. The leukocyte image detection and recognition model is trained by constructing a leukocyte image detection and recognition model based on transfer learning, taking a coco data set and labeled leukocyte images as samples. The leukocyte image detection and recognition model extracts three-level fused feature pyramids, different prior contour frames are set corresponding to leukocytes with different size features, network convergence is accelerated, and the recognition efficiency and accuracy are improved. The leukocyte images are automatically and efficiently detected, recognized and counted based on the leukocyte image detection and recognition model, the detection and recognition precision is improved, human and subjective factors are eliminated, and fairness and objectivity are achieved. According to the method, the reasoning time for detecting andidentifying one image is 0.05 second, and analysis of 20 leukocyte images can be completed per second. And the identification accuracy of six normal types of leukocytes reaches 98%.
Owner:BEIJING XIAOYING TECH CO LTD
Automatic testing method for video playback starting
InactiveCN105183632AEnsure consistencyExclude subjective factorsSoftware testing/debuggingStart timeNetwork connection
The invention discloses an automatic testing method for video playback starting. According to the automatic testing method, video playback equipment is connected with a test system through a network; the video playback equipment opens a to-be-tested video; the test system shoots a screen of a play home page of the to-be-tested video; the video playback equipment starts playing the to-be-tested video; the test system intercepts a plurality of screenshots after playback of the to-be-tested video is started, marks a real-time time point of each screenshot, and records the playback starting time point when the to-be-tested video begins to be played; the test system compares the screenshots after playback of the to-be-tested video is started with a standard screenshot file one by one, deletes the screenshots which are different from the standard screenshot file until the test system obtains the screenshot which is the same as the standard screenshot file, and then calculates the playback starting time duration. According to the automatic testing method for video playback starting, the instantaneous moment of video playback starting can be timely captured through an automatic test; mechanical and repetitive tests can be efficiently and accurately finished; the software test period is effectively shortened; and the test reliability and accuracy are improved.
Owner:SICHUAN CHANGHONG ELECTRIC CO LTD
Multi-dimensional hotel grading method
InactiveCN106022573AEliminate subjective factorsThe calculation result is accurateResourcesMultiple dimensionEnvironment of Albania
The present invention provides a multi-dimensional hotel scoring method, which includes the steps of obtaining multi-dimensional data of the hotel, performing score calculations for the hotel to be evaluated in the dimensions of facilities, location, price, sound insulation, and catering, and obtaining the scores under each dimension. And the steps of calculating the comprehensive score of the hotel through the scores of each dimension. From the point of view of guest concerns, the present invention provides a standardized scoring method for comprehensive evaluation combined with guest concern elements, not only examining the hotel's own software and hardware conditions, but also examining various conditions of the hotel's environment, and the evaluation factors are comprehensive , and the evaluation method is relatively objective.
Owner:南京世途猫信息技术有限公司
Automatic identification and drawing of low-level jet streams based on wind field information of MICAPS
InactiveCN105468899AImprove recognition efficiencyExclude subjective factorsInformaticsSpecial data processing applicationsProcess systemsLow level jet
The invention relates to the technical field of mesoscale weather forecasts, utilizes conventional observational data, encrypts data of automatic stations and wind field information of an MICAPS (Meteorological Information Comprehensive Analysis and Process System), and combines low-level jet characteristics, so as to realize automatic identification of low-level jet streams at the 850hPa isobaric surface in coastal areas of Eastern China. The invention adopts a technical scheme that automatic identification and drawing of low-level jet streams based on the wind field information of the MICAPS comprise the following steps: step 1, extraction of automatic stations; step 2, preprocessing; step 3, clustering; step 4, fitting; after clustering is terminated, each cluster represents one jet stream, and in order to directly showing jet streams, fitting should be performed for the clustered automatic stations, polyline fitting is performed firstly, and then polyline smoothing is performed. The invention is mainly applied to weather forecasts.
Owner:TIANJIN UNIV
A method for quantifying defects in a transparent substrate
InactiveCN101663574AExclude subjective factorsReduce duplicationOptically investigating flaws/contaminationUsing optical meansPlanar substrateGlass sheet
Disclosed is a method for the detection and quantification of defects in transparent substrates and, more particularly, in glass sheets. The method comprises providing a transparent planar substrate having a top surface and a bottom surface. The surface topography of at least a portion of the top surface of the provide transparent planar substrate is measured to obtain a three dimensional top surface profile having a sub-nanometer level of precision. From the three dimensional surface profile measurement, the existence of one or more surface variations in the three dimensional surface profilehaving an amplitude greater than a predetermined tolerance can be identified and / or quantified.
Owner:CORNING INC
Method for automatically classifying satellite image scene based on morphological component analysis
InactiveCN103955712AExclude subjective factorsLow costImage analysisCharacter and pattern recognitionMorphological component analysisSensing data
The invention belongs to the technical field of remote sensing data application and satellite image processing and particularly relates to a method for automatically classifying a satellite image scene based on morphological component analysis. The method comprises the following steps of (1) constructing a dictionary matrix through an independent meta-analysis method; (2) decomposing morphological components of a satellite image based on the morphological component analysis theory; (3) decomposing the satellite image into a texture layer and a bottom layer; (4) performing quantitative calculation on the total probability of classification of an objective image scene according to a mechanism of maximum likelihood estimation with combination of features of the texture layer and the bottom layer, and automatically classifying the satellite image scene with the quantitative calculation on the total probability of classification of objective image scenes as the basis. The method combines with a machine vision method and can be applied to a computer easily. System construction is performed more quickly and accurately through the computer than through a manual method, artificial subjective factors are eliminated, and cost is reduced. Furthermore, the method has high automatic identification accuracy and identification stability.
Owner:FUDAN UNIV
Method for determining an optimal bridge maintenance technology combination under multiple diseases by using a genetic algorithm
PendingCN109919503AThe decision-making results are more scientific and objectiveThe principle is simpleGenetic modelsResourcesOptimal maintenanceGenetics algorithms
The invention belongs to the field of bridge maintenance, and particularly relates to a method for determining an optimal bridge maintenance technology combination under multiple diseases by using a genetic algorithm. According to the technical scheme, the method comprises the following steps that (1) determining maintenance technology list optimization indexes, wherein the maintenance technologylist optimization indexes comprise a cost index, a service life and an application index; (2) respectively carrying out data initial processing and normalization on the cost index, the adaptation index and the service life of the maintenance technology; (3) determining the weight value of each index by adopting a G1 method; (4) establishing a coefficient matrix of each index according to the normalized data; and (5) introducing a decision matrix, establishing a genetic algorithm multi-objective optimization model, and further determining an optimal maintenance technical list of the bridge under multiple diseases. The method for determining the optimal bridge maintenance technology combination under multiple diseases by using the genetic algorithm is wide in application range, simple in principle, convenient to use and good in reliability.
Owner:NORTHEASTERN UNIV
Abnormal data feature extraction method, device and equipment and storage medium
InactiveCN111340975AExclude subjective factorsReduce workloadElectric devicesRegistering/indicating working of vehiclesFeature extractionEngineering
The embodiment of the invention discloses an abnormal data feature extraction method, device and equipment, and a storage medium. The method comprises the steps: obtaining vehicle battery data; constructing a neural network model according to the characteristics of time sequence and high dimension of the vehicle battery data; and extracting a feature vector of the vehicle battery data according tothe neural network model. According to the technical scheme provided by the invention, the neural network model is constructed according to the characteristics of the vehicle battery data, the feature vectors of the data can be automatically extracted from a large number of vehicle battery data by adopting the model structure, a large number of detailed rules do not need to be manually made, theworkload is reduced, and abnormal data determined according to the feature vectors automatically extracted by the model is more accurate.
Owner:NEUSOFT REACH AUTOMOBILE TECH (SHENYANG) CO LTD
Self-limiting valve opening and closing device
PendingCN109519587AReasonable structural designSimple and safe operationOperating means/releasing devices for valvesMulti-valveSelf limiting
The invention discloses a self-limiting valve opening and closing device, and solves the problem of a traditional mechanical transmission mechanism incapable of extending front and back and adjustingleft and right in the center line direction of a valve mandrel of a valve hand wheel in multi-valve use places. The self-limiting valve opening and closing device comprises a valve opening and closingtransmission mechanism, a limiting compensator and a spanner, wherein the valve opening and closing transmission mechanism consists of an extension driving mechanism, a rotary driving mechanism, anda cylinder supported between the extension driving mechanism and the rotary driving mechanism; under driving by an extension motor and a rotary motor, when a hollow spline shaft penetrating through atransmission shaft of a rotary RV speed reducer axially slides in the cylinder, the hollow spline shaft is synchronously rotated around a center line parallel to a rotary shaft; and the spanner with aclamping jaw structure is driven through the limiting compensator, and is rotated during axially sliding to finish opening, closing and adjustment of a valve. The self-limiting valve opening and closing device is simple in structure, reasonable in design, convenient to operate and stable in operation, can effectively replace manual adjustment of the valve, is precise, fast and safe in operation,and prominently improves the operation efficiency.
Owner:深圳中科捷飞科技有限公司
3D printer nozzle height adjusting method
ActiveCN111267339AEasy to operatePrecise height adjustmentAdditive manufacturing apparatus3D object support structuresComputer printingCalibration result
A first completely-twisted line serves as a datum, a calibration formula is utilized for adjusting the height of a 3D printer nozzle, operation is simple, efficiency is high, and the adjusted height is accurate. The subjective factor existing during selecting of best line printing can be removed, the adjusting result is more objective, and the calibration result is consistent.
Owner:SHANGHAI FUSION TECH CO LTD
Early pregnancy test paper combined device
ActiveCN105866443AThe judgment result is accurateImprove accuracyBiological testingPregnancy testsPregnancy test
The invention discloses an early pregnancy test paper combined device. The early pregnancy test paper combined device comprises a test paper strip and a test paper tray, the separating block is provided with three mounting positions for test papers at different concentrations in the vertical direction, namely a first test paper is arranged in a first open cavity at the upper end, a second test paper is arranged in a second cavity at the middle part, and a third test paper is arranged in a third cavity at the lower end; and an HCG antibody concentration sensor is arranged in each cavity and used for transmitting detected data to a receiving terminal. The early pregnancy test paper combined device has the advantages that whether reaction process of the test paper is carried out or not is judged by adopting the redundancy judging manner, accuracy of the judging process is greatly improved, subjective factors are eliminated, judgement is made by virtue of control equipment, judgement time is short, and judgement result is accurate.
Owner:BEIJING JINHUAKE BIOLOGICAL TECH
A Method for Selecting Spectral Wavenumber
ActiveCN105630743BExclude subjective factorsImprove robustnessColor/spectral properties measurementsComplex mathematical operationsRe sequencingClassical mechanics
Owner:ZHEJIANG UNIV
Knowledge based agricultural material commodity recommendation method
InactiveCN107133838AScientific solutionRecommended scienceDatabase updatingBuying/selling/leasing transactionsPersonalizationComputer science
The invention discloses a knowledge based agricultural material commodity recommendation method, and relates to the technical field of commodity personalized recommendation. The knowledge based agricultural material commodity recommendation method comprises the steps of analyzing user and commodity features by combining the problem background, and generating a case library structure according to the features; according to specific user information, judging whether a case corresponding to the user feature exists or not in the case library, and thus performing different operations on the case library; acquiring a commodity feature matched with the corresponding user feature from the case library, and generating an agricultural material commodity supposed to be recommended by combining the commodity information. Compared with a traditional agricultural material commodity recommendation method, the recommendation method provided by the invention solves a problem of cold start; the scientificity and effectiveness of agricultural material commodities are ensured based on actual requirements of users by combining agricultural production knowledge; the establishment of the case library enables the knowledge based recommendation to be more efficient.
Owner:无锡中科富创科技孵化有限公司
Lyric alignment method and related product
ActiveCN111210850AReduce investmentExclude subjective factorsCarrier indexing/addressing/timing/synchronisingTimestampVocal sound
The embodiment of the invention provides a lyric alignment method and a related product, and the method comprises the steps: carrying out the processing of human voice according to a preset time window, and obtaining N audio frames; marking each piece of lyric data according to the preset time window and the timestamp of each sentence of lyric in the plurality of lyric data to obtain a marking sequence of each piece of lyric data; and determining target lyric data in the plurality of lyric data according to the N audio frames and the mark sequence of each lyric data. By adopting the embodimentof the invention, the lyric alignment efficiency can be improved.
Owner:TENCENT MUSIC ENTERTAINMENT TECH SHENZHEN CO LTD
Method for efficiently processing song volume equalization
ActiveCN111986696AThe detection method is simpleIntuitive detection methodElectrophonic musical instrumentsSpeech analysisEngineeringEqualization
Owner:湖南融视文化创意有限公司
A method for measuring foot-and-mouth disease synthetic peptide vaccine emulsion particles
ActiveCN104111213BFully reflectExclude subjective factorsParticle size analysisRefractive indexWindow detection
The invention relates to a method for measuring foot-and-mouth disease synthetic peptide vaccine emulsion particles. Using white oil as a dispersant, the vaccine emulsion particles and white oil are mixed at a volume ratio of 1:8-1:12, and the vaccine emulsion particles are dispersed and diluted in white oil. The oil is used as the sample to be tested; the detection unit of the laser particle size analyzer is preheated at room temperature for 30-60min; The sample injection pool is placed in the measurement window of the detection unit for particle size analysis and measurement. Compared with the prior art, the invention provides quality standards and inspection methods for measuring the uniformity and stability of the vaccine, objectively judges the uniformity and stability of the vaccine, and eliminates various subjective factors.
Owner:SHANGHAI SHEN LIAN BIOMEDICAL CORP
Offline reading method and device based on three-dimensional code and image recognition
ActiveCN112364675AEnsure safetyImprove reducibilityCharacter and pattern recognitionNeural architecturesEngineeringNetwork model
The invention relates to an offline reading method and device based on a three-dimensional code and image recognition. The method comprises the following steps: establishing an original image set; trimming the original image into a standardized image material and putting the standardized image material into a material set; extracting a feature matrix through a pixel matrix of the image material, and putting the feature matrix into a vector set; training an image reconstruction model capable of restoring the corresponding image material through the feature matrix through a convolutional neuralnetwork; identifying each feature matrix in the vector set through the character strings to obtain a relationship set of character string identifiers and the feature matrixes; encoding the character string identifier and the corresponding image material to obtain a three-dimensional code; training by using a deep learning network model to obtain an image recognition model; and calling the vector set, the relationship set, the image reconstruction model and the image identification model, importing the vector set, the relationship set, the image reconstruction model and the image identificationmodel into a three-dimensional code identification module, and identifying, reading and verifying the picture containing the three-dimensional code.
Owner:CN3WM XIAMEN NETWORK TECH CO LTD
X rays photographic diagnostic bench for finger joints collateral ligamentum crack due to mechanical stressing
InactiveCN101002687AAvoid X-ray Radiation InjuriesExclude subjective factorsDiagnostic recording/measuringSensorsFinger jointX-ray
A mechanical force-applying table for the X-ray photography and diagnosis apparatus to diagnose if the lateral ligamenta collateralia of the joints of thumb and / or other fingers is broken by mechanically applying force is composed of a base plate, a force applying unit with 2-3 force-applying heads and a digital force display, and two supporters with multi-angle turned press head.
Owner:陈溶
Method and system for determining parallelism of lens plane and test chart plane
InactiveCN106482672AAccurate judgmentIncrease flexibilityUsing optical meansPlane parallelEnvironmental geology
The invention discloses a method and a system for determining parallelism of a lens plane and a test chart plane. The method comprises steps of: horizontally arranging a test chart, wherein a mark region is arranged on the test chart; arranging the center of a to-be-tested lens on a test tooling on a plumb line of the center of the mark region on the test chart, and aligning the center of the mark region; acquiring a picture, shot by the to-be-tested lens, of the test chart, and identifying the actual position of the center of the mark region on the picture; according to a formula, calculating the parallelism of the lens plane and the test chart plane; judging whether the parallelism is within a preset angle range; if yes, determining that the lens plane is parallel to the test chart plane; and if not, determining that the lens plane is not parallel to the test chart plane. According to the invention, the method and the system are suitable for all products including products with irregular appearances, and are highly universal; and parallelism can be judged according to a specific parallelism quantization value in a simple and reliable manner, subjective factors of persons are eliminated and precision is controllable.
Owner:GEER TECH CO LTD
X rays photographic diagnostic bench for finger joints collateral ligamentum crack due to mechanical stressing
InactiveCN100560027CAvoid X-ray Radiation InjuriesExclude subjective factorsDiagnostic recording/measuringSensorsDistractionFinger joint
The present invention is composed of a base plate with a booster and two support devices, the booster has a booster pressure head and a "force-measuring digital display instrument"; the two support devices are multi-angle rotating pressure heads. Use 3 or 2 indenters to quantitatively apply mechanical force to stretch the different joint spaces of the thumb / finger of the injured hand and the corresponding joint spaces of the healthy hand, take X-rays of both hands, compare the size of the two spaces, and diagnose lateral ligament rupture and no. The present invention can completely avoid X-ray damage to the operator, and because quantitative mechanical force is used to avoid errors caused by subjective factors of manual force force, the diagnosis is more accurate.
Owner:陈溶
A spectral wavelength selection method based on pls-vip-aco algorithm
ActiveCN106644983BExclude subjective factorsFast convergenceRaman scatteringColor/spectral properties measurementsComputational physicsLength wave
The invention belongs to the field of spectrum analysis, and particularly relates to a spectrum wavelength selection method based on a PLS-VIP-ACO algorithm. The method combines an ant colony algorithm (ACO algorithm), a variable important in projection coefficient (VIP coefficient) and partial least squares (PLS), and comprises the steps of establishing a PLS model in a whole wavelength section, calculating the VIP coefficient of each wavelength variable, and taking the obtained VIP coefficients as initial values of ACO pheromones; in each ACO iteration, recording a wavelength point corresponding to an optimal model obtained by each iteration, and a PLS coefficient absolute value of the wavelength point, accumulating with results of last iteration, and updating the ACO pheromones by considering the VIP coefficients, thus entering next ACO iteration; after all iterations are ended, counting accumulated PLS coefficients of all the wavelength points, sorting in a descending order, recording a corresponding wavelength ordering sequence, and then adopting a strategy of reversely removing weak correlation wavelengths to obtain a final optimal wavelength combination. The method can be used to remarkably improve the robustness and accuracy of spectrum modeling.
Owner:ZHEJIANG UNIV
Sealing performance detection cabinet, sealing performance detection system thereof and use method of sealing performance detection cabinet
PendingCN114279657AExclude subjective factorsImprove accuracyMeasurement of fluid loss/gain rateBuffer tankControl engineering
The invention relates to a sealing performance detection cabinet, a sealing performance detection system and a use method thereof, the sealing performance detection cabinet comprises a cabinet body provided with an operation platform and a top cover above the operation platform, the operation platform is provided with a detection tool base, the detection tool base is provided with a detection tool inner core provided with a gas outlet, and the detection tool inner core is provided with a gas outlet. A telescopic device is arranged on the top cover; the end part of a telescopic rod of the telescopic device is connected with a gauge outer cover with an air inlet; on the basis of the sealing detection cabinet, the sealing detection system is additionally provided with a container internal air pressure sensor installed on the detection tool inner core, a container external air pressure sensor installed in the detection tool outer cover, an indicating lamp, a controller, a gas buffer tank and a hydraulic controller. The invention provides the sealing performance detection cabinet, the detection system and the use method thereof for the container with the outward bending flange at the opening, subjective factors in the existing detection method can be eliminated, the accuracy is improved, the detection index is quantified, the use is convenient and flexible, the applicability is good, and the detection efficiency can be improved.
Owner:SHANGHAI SOLID STAINLESS STEEL PRODS +1
Cosmetic soothing and repairing test method and application thereof
InactiveCN113702586AExclude subjective factorsAccurately establishedMaterial analysisOphthalmologyBiomedical engineering
The invention provides a cosmetic soothing and repairing test method and application thereof, and the cosmetic soothing and repairing test method comprises the following steps: (1) performing spot pasting on human hand skin by using a stimulation solution to obtain a skin stimulation model, and detecting characterization parameters; (2) smearing a to-be-detected sample on the skin stimulation model obtained in the step (1), then detecting skin characterization parameters, and evaluating the soothing and repairing effects of the to-be-detected sample, wherein the solute of the stimulation solution in the step (1) comprises a combination of at least two of SDS, capsaicin or lactic acid. The testing method provided by the invention can effectively, scientifically and accurately detect the soothing and repairing effects of the cosmetics, and the detection speed is high.
Owner:广州美域医学检验有限公司 +1
A Method of Automatically Extracting Surface Vegetation Phenology Information Based on Gaussian Function Fitting Variance
InactiveCN104933699BExclude subjective factorsSimple calculationImage enhancementImage analysisVegetationGaussian function
The invention relates to a method for automatically extracting phenology information of earth surface vegetation based on the fitting variance of a Gaussian function. A range which is not only a space concept but also a time concept is applied to operation, the range is calculated, the obtained range represents range values of the whole NDVI time sequence set, the range values represent a period in which the variance function changes most, and the change period represents the growth period of the surface land vegetation of a research area. The method comprises the steps of 1) preprocessing initial remote sensing images; 2) determining the fitting goodness; 3) determining the range reasonableness; and 4) completing extraction of the phenology information. The method can be used to effectively solve the problems including that the fitting parameters are too many, the calculation process is complex and manual determination is subjective, results are obtained via calculation based on computer in the whole course, subjectivity of manual determination is eliminated, and it is proved that result data is highly correlated to the practical phenology information of the earth surface vegetation in the research area and is quite indicative and representative.
Owner:JILIN UNIV
A method for determining the weight of an uninterrupted line based on a variable entropy weight method
InactiveCN109325660AFast convergenceExclude subjective factorsResourcesWeight analysisEvaluation result
The purpose of the patent of the invention is to make up for the deficiency of the prior art, and provides a method for determining the weight of an uninterrupted line based on a variable entropy weight method. To achieve the purpose, the method for determining the weight of the uninterrupted line based on the variable entropy weight method of the invention comprises the following steps of 1 establishing a power distribution uninterrupted work evaluation decision expert database; 2 obtaining a de-dimensioning standardized score matrix Hv. U; 3, calculating a constant entropy weight, and pre-processing the de-dimensioning standardized score matrix Hv. U by adopting a normalization method; 4, calculating the difference entropy weight; 5, calculating the variable entropy weight; 6, through the calculation, obtaining the adjusted evaluation result according to the variable entropy weight. The variable entropy weight method of the invention obtains the entropy weight of the representative weight completely according to the decision matrix, and can effectively avoid the influence of the subjective judgment error of the expert on the weight analysis. The combination of constant entropy weight and deviation weight can make the weighted results converge quickly, eliminate the subjective factors of individual experts, and improve the reliability of the evaluation results.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD SHAOXING POWER SUPPLY CO
Maintenance technology selection method under single disease of highway concrete bridge
The invention belongs to the field of bridge maintenance, and particularly relates to a maintenance technology selection method under a single disease of a highway concrete bridge. The technical scheme is as follows: the method comprises the following steps: 1) determining a bridge maintenance technology selection index under a single disease; 2) quantifying the selection indexes; 3) determining weight values p1, p2 and p3 of each evaluation and selection index by using an analytic hierarchy process based on experts; and 4) calculating a comprehensive evaluation value of each maintenance technology by adopting a simple linear weighting method, and obtaining a bridge maintenance technology list under a single disease according to the comprehensive evaluation value of each maintenance technology. According to the maintenance technology selection method for the expressway concrete bridge under the single disease, the optimal maintenance technology under the single disease can be selectedaccording to the visual numerical calculation result, and therefore scientific decision making of bridge maintenance management is achieved.
Owner:NORTHEASTERN UNIV
Lyric Alignment Method and Related Products
ActiveCN111210850BImprove alignment accuracyReduce investmentCarrier indexing/addressing/timing/synchronisingAlgorithmTime windows
The embodiment of the present application provides a lyrics alignment method and related products. The method includes: processing the human voice according to a preset time window to obtain N audio frames; according to the preset time window and multiple The time stamp of every lyrics in the lyrics data marks each lyrics data, obtains the label sequence of each lyrics data; Determines in the multiple lyrics data according to the N audio frames and the label sequence of each lyrics data Target lyrics data. The efficiency of lyrics alignment can be improved by adopting the embodiments of the present application.
Owner:TENCENT MUSIC ENTERTAINMENT TECH SHENZHEN CO LTD
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