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399 results about "Time factor" patented technology

Association-rule recommending method based on self-adaptive multiple minimum supports

The invention discloses an association-rule recommending method based on self-adaptive multiple minimum supports. The method comprises the following steps of firstly, establishing a commodity-classifying hierarchical tree according to commodity classification, and classifying concrete commodities according to the classifying hierarchical tree; next respectively carrying out minimum-support threshold-value setting on each concrete commodity and the upper-layer class of a concrete-commodity layer, and then mining frequent item sets and generating rules by utilizing a multiple-minimum-support association-rule expanding algorithm on the basis of the support threshold-value setting, wherein the threshold-value setting relates to the influences of time factors, concrete-commodity price factors and concrete-commodity brand factors; finally generating recommendation for each user by adopting a TOP-N recommending method. When personalized recommendation is made for the user by the association-rule recommending method, the characteristics of different objects can be better embodied by considering the influences of many factors on the multiple-minimum-support threshold-value setting for the concrete commodities and the classes; meanwhile, a data-sparsity problem and a cold-starting problem in a recommending system are relieved, so that the personalized recommendation can be more accurately made for the user.
Owner:SHANGHAI ZHENKE BUSINESS CONSULTING CO LTD

Quantitative evaluation method for lateral sealing of fault

InactiveCN105760668AThe evaluation results are in line with the actualInformaticsSpecial data processing applicationsMathematical modelEngineering
The invention discloses a quantitative evaluation method for lateral sealing of a fault.The method is mainly based on the research about the fault sealing mechanism and influence factors thereof, under the circumstance that pressure bearing time of the fault is considered, a fault-reservoir displacement pressure difference method for quantitative evaluation of fault sealing is improved, and a fault sealing quantitative evaluation geological and teaching model taking the time factors into consideration is established.The gradual-approximation algorithm with the given step length is adopted, it is determined that rocks of a surrounding rock stratum have the same shale content as a target spot stratum and the burial depth at the diagenetic degree, then according to the relation between the product of the shale content of the rocks built in a research area and the burial depth and the displacement pressure, the displacement pressure of target spot stratum rocks is calculated quantitatively and compared with the displacement pressure of a target disc reservoir stratum, and whether the fault is sealed or not as well as the magnitude of the sealing capability are evaluated quantitatively.It is verified through actual data that when compared with a fault rock shale content (SGR) method and the fault-reservoir displacement pressure difference fault sealing evaluation method which does not consider pressure bearing time, the method has feasibility.
Owner:NORTHEAST GASOLINEEUM UNIV

Electromechanical device neural network failure trend prediction method

The invention relates to an electromechanical device neural network failure trend prediction method, comprising the following steps: (1) obtain a section continuous vibration signal which is sensitive to the failure and is output by a measuring point sensor; (2) respectively carry out exceptional value elimination and missing data filling to the vibration data by a 3 sigma method and an interpolation method; (3) carry out a normalization process to a vibration data sequence; (4) calculate a vibration data sequence which is entropy-weighted according to the sequence which is carried out the normalization process; (5) carry out a time-weighted calculation to the vibration data sequence which is entropy-weighted by utilizing time weight due to the influence of time factor; (6) build a nonlinear dynamic recurrent neural network prediction model by utilizing the data sequence which is obtained by step (5) and determine a hidden layer optimal node number by utilizing a golden section method; (7) carry out normalization process to a trend prediction result and obtain a actual prediction result. A dynamic recurrent neural network model is adopted to carry out prediction in the invention, therefore, the failure prediction reliability is increased. The electromechanical device neural network failure trend prediction method can be widely applied to the failure prediction and analysis of all kinds of electromechanical devices.
Owner:BEIJING INFORMATION SCI & TECH UNIV

Method of planning three dimensional route of unmanned plane by means of improved artificial fish swarm algorithm

The invention discloses a method of planning three dimensional route of an unmanned plane by means of an improved artificial fish swarm algorithm. The method of planning three dimensional route of an unmanned plane by means of an improved artificial fish swarm algorithm is used for carrying out static state planning of route and real-time dynamic re-planning of route when an unmanned plane executes a single task. The method of planning three dimensional route of an unmanned plane by means of an improved artificial fish swarm algorithm includes the steps: constructing a digital map through a landform model and a simplified threat model, considering the influence of space division granularity on the complexity of an optimizing control algorithm, and realizing division of space according to a fence self-adaptive algorithm; realizing static state route planning by means of an improved artificial fish swarm algorithm; and considering the time factor, constructing a threat prediction model based on a dynamic Bayesian network, predicting the unexpected threat, combined with flight constraint of the unmanned plane, obtaining the re-planning starting point, and realizing global route dynamic re-planning by means of the improved artificial fish swarm algorithm. The method of planning three dimensional route of an unmanned plane by means of an improved artificial fish swarm algorithm has the advantages of reducing the complexity of a route optimizing control algorithm, improving the optimum route searching capability, and satisfying the practical route planning demand.
Owner:NANCHANG HANGKONG UNIVERSITY

Method for optimizing loads of speech/user recognition system

InactiveUS20060136218A1Minimize computation timeSpeech recognitionTime factorSpeech sound
A method for optimizing a load of a speech/user recognition system is provided. The speech/user recognition system comprises a server end, a client end and a network, and the method is achieved by performing N stages of computations for speech features of a speech, where N is a positive integer, and an i is selected from 1 to N for representing the ith stage speech features, comprising steps of: (a) providing a real time factor Ta(i) for computing a respective stage i of the speech features at the client end, where Ta(i) is an average computation time of computing the ith stage speech features at the client end with respect to one second input speech; (b) providing a real time factor Tb(i) for computing a respective stage i of the speech features at the server end, where Tb(i) is an average computation time of computing the ith stage speech features at the server end with respect to one second input speech; (c) providing a load c of the server end and a load d of the network; (d) deciding an n in the range from 1 to N for minimizing a recognition time Toutput of the speech; (e) inputting the speech with time Tinput for being recognized; (f) performing an computation from the first stage speech features to the nth stage speech features of the speech at the client end, while performing an computation from the (n+1)th stage speech features to the Nth stage speech features of the speech at the server end; and (g) repeating steps (e) to (f).
Owner:DELTA ELECTRONICS INC

Dynamic cipher generation method for electronic equipment for fingerprint and voice recognition

InactiveCN104331652AAddresses vulnerabilities that are vulnerable to crackingImprove securityDigital data authenticationUser authenticationDependability
The invention discloses a dynamic cipher generation method for electronic equipment for fingerprint and voice recognition. The dynamic cipher generation method comprises the following steps: acquiring a fingerprint image of a user and extracting fingerprint features; performing matching the fingerprint features and a fingerprint template; when the fingerprint features are matched successfully, generating and displaying voice verification content; acquiring the voice message of the voice verification content read by the user and extracting the voice verification content and voiceprint features from the voice message; when the extracted voice verification content is matched with the generated voice verification content, performing matching on the voiceprint features and a voiceprint template; when matching is performed on voiceprint features and the voiceprint template, performing operation on the voiceprint template and a time factor according to a pre-stored cipher algorithm to generate a dynamic cipher. According to the dynamic cipher generation method disclosed by the invention, user authentication is performed by closely combining the fingerprint and voice recognition technology, so that the safety and the reliability of the electronic equipment and dynamic cipher generation are improved.
Owner:WUXI BIOKEE BIOMETRICS TECH

Method for identifying and predicting bus passenger flow influence factor based on geographically and temporally weighted regression

The invention discloses a method for identifying and predicting a bus passenger flow influence factor based on geographically and temporally weighted regression (GTWR). The method comprises steps of: extracting a traffic zone hour bus passenger flow and calculating built environment density; 2, constructing a space-time three-dimensional coordinate system according to the time of a passenger flow observation point and latitude and longitude to calculate space-time distance, and reckoning a spatial regression weight matrix according to a Gaussian function and the distance; 3, calculating a relation between a passenger flow volume and land utilization under different space-time conditions based on the GTWR; and 4, obtaining a change of a relevant parameter to a coefficient according to the calculation to perform visualization processing in time and space, and analyzing an inherent law. The method takes account of the influence of a time factor on the bus passenger flow and the built environment relation, can deeply excavate an internal relation between the passenger flow and the land utilization, accurately predicts the bus passenger flow, and provides the scientific theoretical guidance for the bus line planning and operation management.
Owner:BEIHANG UNIV

Off-line dynamic QR code generation method, and payment method and device

The invention discloses an off-line dynamic QR code generation method, and a payment method and device. For the scheme of the off-line dynamic QR code generation method, a dynamic password token technology based on time is used to perform encrypted operation to calculate the dynamic keyword of this time, according to a token seed key and a time factor, by means of combination with the transaction information containing the transaction amount, and a dynamic QR code pattern is generated according to the dynamic keyword of this time. The scheme applies to the dynamic password token technology to the dynamic QR code generation technology, thus being able to preferably solving the problem that a static QR code cannot realize one code for one time. Besides, in the scheme, the dynamic token and a certificate server are synchronous in time and are consistent in the algorithm, thus not depending on on-line and using the off-line mode to guarantee that the generated QR code data can be identified and authenticated by the background. And at the same time, the advantages of off-line are reduction of the on-line flow, reduction of network interaction time, reduction of transaction flow and steps, and improvement of transaction efficiency.
Owner:DYNAMICODE

Hierarchical storage and migration method of industrial real-time data

The invention provides a hierarchical storage and migration method and system of industrial real-time data. The method comprises the following steps: monitoring a hierarchical storage system in fixed time, and triggering data migration calculation after the storage volume use ratio of advanced storage equipment achieves a first preset threshold value; during migration, firstly, carrying out value assessment on each data object in the storage equipment to obtain the value of each data object and sort the data object according to the value; and according to sorting, setting a migration strategy, picking up the data object to be migrated, and forming and migrating a migration queue. The method and the system set the migration strategy according to different storage equipment priorities and the value sorting of the current data objects, wherein value calculation considers a time factor, number of access users, other data object situations associated with the data object, the access contrast ratio of different storage equipment and the own size of the data object, and the time factor, the number of access users, other data object situations associated with the data object, the access contrast ratio of different storage equipment and the own size of the data object affect data object migration efficiency. The method improves data value judgment accuracy.
Owner:浙江舟山至控智能装备技术有限公司
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