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166 results about "Real time classification" patented technology

Method, system and apparatus for real-time classification of muscle signals from self-selected intentional movements

A new method, system and apparatus is provided that enables muscle signals that correspond to muscle contractions to be mapped to one or more functions of an electronic device such as a prosthetic device or gaming apparatus. Muscle signals are classified in real-time from self-selected intentional movements. A self-training protocol allows users to select and label their own muscle contractions, and is operable to automatically determine the discernible and repeatable muscle signals generated by the user. A visual display means is used to provide visual feedback to users illustrating the responsiveness of the system to muscle signals generated by the user.
Owner:HOLLAND BLOORVIEW KIDS REHABILITATION HOSPITAL

Method for real time network traffic classification

A method is provided to classify network traffic flows in real-time using spectral analysis techniques to extract regularities inside the network traffic flows. In one embodiment of the invention, subspace decomposition on power spectral density feature vectors and minimum coding length criterion are utilized for training traffic flows of different classifications. Experimental results are shown to demonstrate the effectiveness and robustness of the invention.
Owner:THE BOEING CO

Real-time recognition of mixed source text

Methods and computer program products are disclosed for the real-time classification of text from a region of interest within an image sample. A feature extractor extracts feature data associated with a plurality of region features from the region of interest. The plurality of region features are selected as to minimize the time necessary for feature extraction. A neural network preclassifier selects one of a plurality of associated source classes for the region of interest according to the extracted feature data. A plurality of classification systems are each associated with one of the plurality of source classes. Each of the plurality of classification systems are operative to classify individual characters within the region of interest when the associated source class of the classification system is selected.
Owner:LOCKHEED MARTIN CORP

Motor imagery classification method based on convolutional neural network

The invention discloses a convolutional neural network method based on a parallel multi-scale time convolution kernel, and mainly solves the problems of low detection accuracy and difficulty in effectively detecting imaginary movement of a user in the prior art. According to the implementation scheme, the method comprises the following steps: collecting imaginary motion electroencephalogram data,preprocessing the imaginary motion electroencephalogram data, and making a data set by using the preprocessed electroencephalogram data; constructing a convolutional neural network, training the convolutional neural network by using the training set and the verification set, testing the convolutional neural network by using the test set, and performing fine tuning on the tested convolutional neural network by using the electroencephalogram data of the testee to obtain a final convolutional neural network suitable for the testee to perform an online experiment; and obtaining an online imagination motion electroencephalogram signal of the testee in real time, and sending the online imagination motion electroencephalogram signal to the final convolutional neural network to obtain a real-timeclassification result. The method can effectively detect the imaginary movement of the user, improves the classification accuracy of the imaginary movement electroencephalogram signals, can be used for medical service, and serves as an auxiliary tool to participate in rehabilitation treatment of stroke patients.
Owner:XIDIAN UNIV

Method for classifying rail failures of high-speed rail

The invention provides a method for classifying the rail failures of a high-speed rail. The main idea is that the method comprises the steps of extracting local features of a time domain and a frequency domain of damaged signals by using a wavelet analysis method; building a three-dimensional tensor signal for a same measuring point by combining different compartments; expanding data to a multi-dimensional space to obtain a non-negative tensor; taking an alternate least squares algorithm as an iteration criterion of the non-negative tensor decomposition; introducing SVD (Singular Value Decomposition) to improve the initialization of the non-negative tensor; extracting hidden features by an improved non-negative tensor decomposing method; and finally, introducing an extreme learning machine algorithm to realize real-time classification on the rail failures. According to the method for classifying the rail failures of the high-speed rail provided by the invention, the signals of rail defects and failures can be classified accurately, the classifying speed and accuracy of the for classifying the rail failures can be improved, and the robustness can be realized; furthermore, the classifying method based on the g the rail failures is prior to an existing method, the better recognition effect can be obtained, and the method can be extensively applied to the field of classifying the for classifying the rail failures.
Owner:HARBIN INST OF TECH AT WEIHAI

Digital drilling real-time classification method for surrounding rock of underground engineering

The invention discloses a digital drilling real-time classification method for a surrounding rock of underground engineering. The method comprises the following steps: making a field drilling test onan underground engineering field to obtain a drilling parameter, obtaining uniaxial compressive strength of a rock body through a model of relationships between drilling parameters and uniaxial compressive strength of rock bodies, obtaining a rock body breaking coefficient on the basis of a model of relationships between drilling parameters and rock body breaking coefficients, obtaining equivalentuniaxial compressive strength from the uniaxial compressive strength of the rock body and the rock body breaking coefficient by use of a uniaxial compressive strength correction formula, obtaining displacement of the surrounding rock by use of a model of relationships between equivalent uniaxial compressive strength and displacement of surrounding rocks, and further classifying the surrounding rock in real time according to the displacement of the surrounding rock. The method has the characteristic of real-time accurate prediction; the displacement of the surrounding rock is reversely deducedaccording to the drilling parameter obtained in field, thereby accurately classifying the surrounding rock in real time by use of the stability of the surrounding rock and providing a basis for design and construction of underground engineering; disturbance in a process of delivering a rock sample to a laboratory is avoided, meanwhile, the test time is shortened to a great extent and manpower andmaterial resources are saved.
Owner:SHANDONG UNIV +1

On-site tunnel real-time surrounding rock classification system and method

The invention discloses an on-site tunnel real-time surrounding rock classification system and a method. The system includes a bearing platform, the bearing platform bears a measuring ruler, a point load tester for conducting point load test on an on-site surrounding rock sample, and a geological compass for determining weak structural plane occurrence, the measuring ruler, the point load tester and the geological compass are detachably disposed on the bearing platform, and the lower part of the bearing platform is provided with moving components for driving the bearing platform to move. The setting of the whole system is convenient for moving a measurement component to the site for real-time measurement, realizes real-time classification work of tunnel surrounding rock, effectively improves the efficiency of tunnel surrounding rock classification work, improves the flexibility of classification work, and can acquire real-time feedback of rock mass classification near a tunnel face, thus being convenient for directly carrying out follow-up work.
Owner:SHANDONG UNIV +1

Network traffic classification method based on semi-supervised learning and computer device

The invention relates to a network traffic classification method based on semi-supervised learning. The method comprises the steps of obtaining network traffic of which type is marked and not marked and extracting traffic feature in each piece of network traffic to obtain network traffic feature vectors; calculating information gain of each traffic feature through utilization of marked data and carrying out feature weighting; mixing and clustering the network traffic of which type is marked and not marked; obtaining the number of the marked network traffic in each cluster and determining a proportion of each type in each cluster; when the sum of the total number of the marked network traffic in clusters is smaller than a preset network traffic threshold value, judging that the clusters areunknown protocol clusters, otherwise, judging that the clusters as the types with the maximum proportions in the marked network traffic; repeating the steps until the traffic types of the traffic clusters are judged, and training an online real-time classifier through utilization of the traffic clusters. The invention relates to a computer device. The device comprises a processor, a memory and acomputer program which is stored on the memory and can be operated on the processor.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Word distribution and document feature based automatic classification method for spam comments

The invention discloses a word distribution and document feature based automatic classification method for spam comments. The method comprises: firstly, collecting network comments and performing word segmentation on the comments to obtain a keyword set; secondly, establishing a word distribution matrix, training a language model, and calculating a classification probability of unlabeled network comments belonging to normal comments or the spam comments; thirdly, extracting document features of the network comments, and calculating the classification probability of the unlabeled network comments; and finally, calculating a weighted average of the classification probabilities, and repeating the steps until the classification probabilities calculated for successive two times are same or a given number of iterations is reached. The method comprehensively considers word distribution features and the document features in the network comments, automatically finishes network comment classification through a self-learning policy, and assists in identification of the spam comments in the network comments. The method is simple in calculation and high in universality and expansibility, can carry out real-time classification on a great amount of comments by only a small amount of network comments with labels, and meets an application demand of quickly identifying the spam comments in the instantly updated network comments.
Owner:NANJING UNIV

Garbage classification equipment and garbage classification method based on chemical element properties as well as application

ActiveCN104722554AClassification operations are simplifiedEasy to operateSolid waste disposalClassification methodsChemical element
The invention discloses garbage classification equipment and a garbage classification method based on chemical element properties as well as application. The garbage classification method comprises the following steps: carrying out pre-treatment including bag breaking, crushing, sieving and the like on garbage; putting a garbage mixture which is pre-treated on a garbage conveying device; carrying out detection analysis on garbage by using equipment for detecting the garbage on line and in real time based on the chemical element properties; receiving a signal detected by the detection equipment by a computer control system, and sending an instruction to a device for classifying the garbage in real time; and classifying the garbage. The garbage classification method is applied to garbage recycling and preparation of raw materials with the stable chemical element properties; the garbage can be recycled and resources are saved; the garbage also can be prepared into the raw materials with the stable chemical element properties; and when the raw materials are used for processes including pyrolysis, gasification, combustion and the like, and good conditions are created for stable and effective operation of the processes, so that the reduction of the garbage is realized, and the aims of recycling and energy generation are realized.
Owner:WUXI RONGBO ENERGY ENVIRONMENTAL PROTECTION TECH
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