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88results about How to "Guaranteed difference" patented technology

Data classification method based on intuitive fuzzy integration and system

The invention relates to the field of pattern recognition, and discloses an unbalanced data classification method based on intuitive fuzzy integration and a system based on the method. The method comprises the following steps of: a) cleaning original data, and classifying original point-of-sale (POS) class samples according to intra-class positions to generate POS class artificial samples; b) training a base classifier by using different sample sets of inter-class approximate balance; c) converting the classification output equal utility of the base classifier into an intuitive fuzzy matrix; and d) integrating samples to be classified into the membership and the non-membership of the POS class and the negative (NEG) class by combining the weight of the base classifier, and making a classification decision. The invention has the advantages that: over learning is avoided by integrating over sampling and under sampling; the training samples of the base classifier are different, so that the difference of the base classifier is ensured; the base classifier is not specifically limited, so the method has good expandability; the intuitive fuzzy reasoning method quantitatively describes the uncertainty in classification so as to improve the performance of integrated learning; therefore, the system based on the method can better support the medical diagnosis decision and the like.
Owner:NANJING NORMAL UNIVERSITY

A graphic image recognition method and a patrol system used in patrol inspection of electric power equipment

The invention discloses a graphic image recognition method and a patrol system used in patrol inspection of electric power equipment, which solves the problems that the prior electric power equipmentimage recognition method needs to manually label a large amount of sample data, which is time-consuming, labor-consuming, high economic cost and unsatisfactory recognition accuracy. The invention usesa pattern image recognition method used in patrol inspection of electric power equipment, Firstly, the image data of the same type of power equipment sample is collected, annotated sample data and unannotated sample data are collected, Secondly, the sample data is preprocessed, Then feature extraction of image data is performed, and the binary classifier model is trained based on semi-supervisedactive learning training. At last, that train model is used to classify, and the real-time image data to be detect is inputted to recognize, and the normal or abnormal image data is judged, and the normal and abnormal conditions of the power equipment are obtained; As that invention utilize sa large amount of unlabeled data, only a small amount of data is required to be label, which saves time andlabor, and achieves good recognition rate under the same condition.
Owner:GUANGYUAN POWER SUPPLY COMPANY OF STATE GRID SICHUAN ELECTRIC POWER

Quadratic congruence equation-based method for resisting denial-of-service attacks of wireless network

InactiveCN102196432AReduce the number of negotiationsIncrease the number of negotiationsAssess restrictionSecurity arrangementWireless mesh networkBeacon frame
The invention discloses a quadratic congruence equation-based method for resisting denial-of-service attacks of a wireless network, which belongs to the technical field of network safety, and mainly solves the problem that the DoS (Denial-of-Service) attacks exist in a wireless access authentication process of an IEEE (Institute of Electrical and Electronic Engineers) 802.11i protocol. The method is implemented by the following steps: an AP (Access Point) adds parameters used for constructing a puzzle into a beacon frame and broadcasts the beacon frame periodically by using the beacon frame in the IEEE 802.11i protocol; a client STA (Special Temporary Authority) acquires the beacon frame, extracts puzzle parameters from the beacon frame, constructs and solves the puzzle in combination with the current global parameters of the wireless network, adds the puzzle parameters and the solution into an authentication request message, and sends an authentication request message to the AP; and the AP receives an open system authentication message of the STA, and the AP sends the authentication request message to the STA to complete the association process when the solution of the puzzle is correct, or the request of the STA is terminated. When the method is adopted, the negotiation times increased to construct the puzzle in a traditional client puzzle scheme are reduced, and the negotiation efficiency and the DoS attach resistance of the wireless access authentication protocol are improved.
Owner:XIDIAN UNIV

Dynamic demand response solving method considering time-of-use pricing

The invention discloses a dynamic demand response solving method considering time-of-use pricing. The method comprises steps of adopting a fuzzy clustering algorithm to divide a load prediction curvein a scheduling period into a peak time period, a flat time period and a valley time period; determining corresponding points (p, q) on the basis of historical data fitting demand and price functionsaccording to the load mean value of each time period, and linearizing the functions near the points (p, q); according to the coefficients of the linear function in each time period, respectively calculating the elastic coefficients of the peak time period, the flat time period and the valley time period so as to establish a dynamic elastic coefficient matrix; establishing a dynamic demand responsemodel according to the dynamic elastic coefficient matrix; solving the dynamic demand response model so as to obtain the prices of the peak, flat and valley time periods in the scheduling period anda new load prediction curve formed after implementing the dynamic demand response. According to the invention, the technical problem that the optimal effect cannot be achieved when the demand side response is stimulated through the price change due to the fact that the fixed price elastic coefficient cannot dynamically reflect the relationship between the load characteristics and the time-of-use price in different scheduling periods is solved.
Owner:CHONGQING UNIV

Crowd counting method based on multi-scale feature fusion

The invention belongs to the technical field of neural networks, and particularly relates to a crowd counting method based on multi-scale feature fusion. The method mainly comprises the following steps: extracting feature maps of three scales from a backbone network, sending the feature maps into a feature fusion sub-network, and calculating a density map by using the fused feature maps so as to predict the number of crowds in the image, wherein the feature fusion sub-network is designed into three convolution network branches, each branch is identical in structure, adopts an attention fusionnetwork and is divided into two paths, each path is composed of a convolution layer, a normalization layer and an activation function, and the two paths are identical in input and different in outputchannel number and are a single channel and an N channel respectively; a single-channel branch learns the feature weight of a multi-channel output branch, the feature weight is multiplied by the output of a multi-channel output feature map, finally, the feature maps of three large branches are superposed, the feature maps are sent to a decoding module together to output an image density map, and the integral value of the density map is the number of people in the image. According to the invention, the people counting precision is improved.
Owner:成都西交智汇大数据科技有限公司

Demodulation circuit for ultrahigh frequency radio frequency recognizing chip

The invention discloses a demodulator circuit used for the ultrahigh frequency radio frequency distinguishing chip, including a detecting circuit and an envelope shaping circuit, wherein the radio frequency signals received by the antenna pass through the envelope detecting circuit and the envelope shaping circuit in turn and output the S signals and the Sav signals to a comparator; the envelope shaping circuit includes a bleeder resistor, a diode, a filter resistance and a filter capacitance, wherein the bleeder resistor is connected between the signal output end of the envelope detecting circuit and the ground, the anode of the diode is connected with the signal output end of the envelope detecting circuit, while the cathode is connected with one end of the parallel branch constituted by the filter resistance and the filter capacitance, and the other end is connected with the ground, wherein the signal output end of the envelope detecting circuit is the S signal output end, while the junction of the parallel branch constituted by the filter resistance and the filter capacitance is the Sav signal output end. The invention realizes the coexistence of the low power dissipation and low cost of the demodulator circuit of the ultrahigh frequency radio frequency distinguishing chip.
Owner:PEKING UNIV SHENZHEN GRADUATE SCHOOL

Multi-task neural network architecture searching method based on evolutionary computation

The invention discloses a multi-task neural network architecture searching method based on evolutionary computation, which comprises the following steps: firstly, initializing a population; evaluating the multi-task generalization abilities of individuals in the population; then randomly obtaining two chromosomes through a binary tournament selection algorithm; comparing the multi-task generalization performance of the two chromosomes; selecting the chromosome with better performance as a parent; then carrying out crossover and mutation operations on two parents to generating two children; evaluating the multi-task generalization performance of the children; then combining the children and the parents; carrying out environment selection according to an evaluation result; generating a new population; carrying out a new round of evolution until a predetermined termination condition is reached; and outputting the individual with the best multi-task generalization ability. According to the method, a genetic algorithm is used for optimizing the multi-task network model system structure, the neural network model suitable for multi-task learning can be automatically searched out without manual participation, and the cross-task information fusion capability of the multi-task network is improved.
Owner:SICHUAN UNIV

Blood stasis removing capsule containing Salvia miltiorrhiza and Radix Astragali, and preparation method thereof

The invention relates to a traditional Chinese medicinal preparation, and concretely relates to a blood stasis removing capsule containing Salvia miltiorrhiza and Radix Astragali, and a preparation method thereof. The capsule is composed of a traditional Chinese medicinal extract product and auxiliary materials. A weight ratio of the traditional Chinese medicinal extract product to the auxiliary materials is 10:0.2-0.8; the traditional Chinese medicinal extract product is prepared by using the following raw materials, by weight, 150 parts of Radix Astragali, 150 parts of Salvia miltiorrhiza, 75 parts of Radix Codonopsis, 75 parts of Chinese yam, 100 parts of Glabrous Greenbrier Rhizome, 75 parts of Chinese angelica, 150 parts of Millettia dielsiana, 75 parts of Semen Euryales, 150 parts of Herba Houttuyniae, 45 parts of Rhizoma Sparganii, 150 parts of Herba Patriniae, 15 parts of cinnamon, 45 parts of Rhizoma Atractylodis Macrocephalae, 22.5 parts of baked ginger, 45 parts of Fructus Toosendan, 75 parts of Sophora flavescens, 75 parts of scorpion, 45 parts of Rhizoma Curcumae, 75 parts of ground beetle and 75 parts of Corydalis tuber; and the auxiliary materials comprise, by weight, 5-10 parts of crosslinked sodium carboxymethyl cellulose, 1-3 parts of alpha-lactose and 2-6 parts of microcrystalline cellulose.
Owner:JILIN LONGXIN PHARMA
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