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770 results about "Statistical processing" patented technology

Statistical signal processing is an area of Applied Mathematics and Signal Processing that treats signals as stochastic processes, dealing with their statistical properties (e.g.,mean, covariance, etc.).

Systems and methods for risk stratification of patient populations

A statistical processing system includes a server operably configured with program instructions implementing a plurality of statistical models to at least one of (a) predict a health outcome based on questionnaire responses, (b) assist a patient's choice of therapeutic modality based on questionnaire responses, and (c) assess a health risk or status based on questionnaire responses. Also provided is a research agency communicating with the server and contracted to provide the statistical models using a visual interface communicated by the server. The server is configured to analyze requests received from users relating to a plurality of said statistical models to reduce redundancy in requests for patient data.
Owner:TERUMO MEDICAL CORP

Statistical determination of historical oilfield data

InactiveUS20090194274A1Optimizing and increasing productionElectric/magnetic detection for well-loggingSurveyProduction optimizationOil processing
A method, system, and computer program product for performing oilfield surveillance operations. The oilfield has a subterranean formation with geological structures and reservoirs therein. The oilfield is divided into a plurality of patterns, with each pattern comprising a plurality of wells. Historical production/injection data is obtained for the plurality of wells. Two independent statistical treatments are performed to achieve a common objective of production optimization. In the first process, wells and/or patterns are characterized based on Heterogeneity Index results and personalities with the ultimate goal of field production optimization. In the second process, the history of the flood is divided into even time increments. At least two domains for each of the plurality of wells are determined. Each of the at least two domains are centered around each of the plurality wells. A first domain of the at least two domains has a first orientation. A second domain of the at least two domains has a second orientation. An Oil Processing Ratio is determined for each of the at least two domains, then an Oil Processing Ratio Strength Indicator is calculated. At least one Meta Pattern within the field is then identified. An oilfield operation can then be guided based either on the well and/or pattern personality or the at least one Meta Pattern.
Owner:SCHLUMBERGER TECH CORP

Communication quality measuring apparatus and communication quality measuring method

A measuring apparatus for measuring quality of a network accurately measures a number of times of a data loss even if all the packets to be measured are not obtained or cannot be obtained. Further, a process load applied to the measuring apparatus is decreased by processing a part of the packets to be measured.The measuring apparatus, which measures quality of a network, includes a means for estimating a sampling rate from a number showing sequences stored in packets and a number of received data and a means for estimating a data loss, which would be measured when all the packets were obtained, from a result of sampling measurement by carrying out a differential process and a statistical process using the sequences in the packets, thereby the measuring apparatus measures a number of times of the data loss in the sampling measurement.
Owner:NEC CORP

Intelligent management method based on video human number Stat. and system thereof

The invention relates to the technical field of video image processing and mode identifying. The invention discloses an intelligent management method based on video people number statistics, which includes the following steps: S1: capturing a video flow image as an input image; S2: carrying out the treatment of people number statistics on the input image to obtain the people flow distribution data in the unit time of each area; S3: a control center carries out adjusting and control on the working personnel according to the people flow distribution data obtained in step S2. A corresponding system includes a video collection module and a people number detecting statistics module; wherein, the people number detecting statistics module include a background construction module, a motion detecting module, an area analyzing module and a data statistics module. The method can be used for reasonably arranging the working number of the personnel of different posts according to the people flow statistic in a scene in a unit time, can better and more reasonably save the manpower cost and effectively improve the management level of public areas.
Owner:GUANGDONG VIMICRO

Device and method for automatic test and fault diagnosis of plane audio integrated system

The invention relates to a device and method for automatic test and fault diagnosis of a plane audio integrated system, which are used for maintaining the plane audio integrated system of Airbus series and Boeing series. The method comprises the steps of: operating test software by an industrial personal computer to provide a man-machine interaction environment, and carrying out analysis, computation and statistic treatment on acquired data so as to further complete fault diagnosis; compiling a fault diagnosis program according to all circuit diagrams and test point information of the audio integrated system, provided by a CMM (Capability Maturity Model for Software) manual, and clearing up injected data information on faults, excitation, response and the like to form a fault record in a fault dictionary; in the fault diagnosis program, providing the positions of testing points in need of manual measurement and corresponding test information; testing the testing points in need of manual measurement by detection personnel to confirm a fault area, and displaying corresponding diagnosis results. The device and method provided by the invention can commonly meet the requirement of the automatic test for two types of audio integrated systems including the AMU (Audio Management Unit) of Airbus series planes and the REU (Remote Electronic unit) of the Boeing series planes, and are favorable for reducing the labor intensity of maintenance personnel and improving maintenance efficiency.
Owner:CIVIL AVIATION UNIV OF CHINA

High-speed rail large-scale bridge performance evaluation method based on health monitoring data

The invention discloses a high-speed rail large-scale bridge performance evaluation method based on health monitoring data, which relates to the field of bridge engineering detection. The high-speed rail large-scale bridge performance evaluation method comprises the steps of arranging an automatic sensor hardware equipment system on a high-speed rail bridge in an optimized manner, achieving automatic data acquisition, carrying out denoise processing, time domain statistical processing, frequency domain processing and the like on measured data in sequence, and evaluating bridge running safety performance based on the health monitoring data. The high-speed rail large-scale bridge performance evaluation method meets the actual requirements of high-speed rail bridge detection and evaluation, can reflect the running safety of the high-speed rail bridge accurately and timely, and provides important guarantee for the safe running of high-speed trains; the evaluation results obtained through adopting the method are unified with the high-speed rail conventional detection and evaluation results, thereby facilitating the actual application of the method for the bridge managers; and decision-making suggestions for targeted bridge maintenance and repair are made on the basis of the evaluation results obtained through adopting the method, thereby being conductive to implementing timely maintenance and dynamic maintenance, and greatly improving the bridge overhaul efficiency.
Owner:SOUTHWEST JIAOTONG UNIV

Management of duplicated node identifiers in communication networks

In a communication network in which each of plural nodes (110 . . . 120) has an assigned node identifier, a node signature (step 505) is generated by each node from an identifier of a component (e.g., 201) of the node or from statistical processing of information in the node. Each node distributes information data (300) that includes its assigned node identifier and its generated node signature (405). The node signatures in information data at a node having the same node identifier are compared (step 710) to detect whether the node signatures for the same node identifier are different. The operation of the network is modified (e.g., 640, 725, 825 or 915) in response to detection of different node signatures for nodes having the same node identifier. The modification (725) may include removing all but one node of the nodes of the same node identifier detected as having different node signatures from network participation.
Owner:RAYTHEON BBN TECH CORP

Image search apparatus and image processing apparatus

Provided is an image search apparatus for searching for a search-target image corresponding to an input image from among a plurality of search-target images. This image search apparatus includes: a characteristic partial image detection unit for detecting a characteristic partial image of each search-target image based on a dissimilarity level of a partial image at a corresponding position among a plurality of search-target images; and a search unit for respectively calculating a level of coincidence between a characteristic partial image of each search-target image detected by the characteristic partial image detection unit and a partial image of an input image, and searching for a search-target image corresponding to an input image from among a plurality of search-target images based on the coincidence level. Additionally provided is an image processing apparatus which stores, in an image database, a plurality of images of the same location that have been picked up by the imaging apparatus. Statistical processing is performed to the plurality of images, using a statistical processing unit. Based on the result of the statistical processing, a representative image selection unit selects, as a representative image, a background image with the lowest dispersion among all pixels as an aggregate of pixels in which the brightness exceeds a prescribed value.
Owner:TOYOTA JIDOSHA KK

Method and device for estimating charge/discharge electricity amount of secondary cell

The present invention provides an apparatus that can estimate the charge / discharge electricity amount without being affected by current measurement error. If specific selection conditions are met, a no-load voltage calculation part (105) takes a plurality of pairs of data consisting of current data I(n) and voltage data V(n) corresponding to the current data and calculates a no-load voltage Vsep as the voltage intercept at a current of zero in a straight-line approximation obtained by statistical processing such as regression analysis using a least squares method with respect to the plurality of pairs of data. In addition, if specific current conditions continue to be met for a certain amount of time, an open circuit voltage calculation part (106) calculates the terminal voltage of the secondary battery as the open circuit voltage Voc. An estimated charge / discharge electricity amount calculation part (114) uses a preset change-in-voltage adjustment constant ΔVbc / adjustment coefficient Kb, change-in-electromotive-force constant Keq and polarization voltage generation constant Kpol to calculate the estimated charge / discharge electricity amount ΔQe as a function of the change ΔVb in the no-load voltage or the open circuit voltage over a predetermined period of time.
Owner:PANASONIC EV ENERGY CO LTD

Angular velocity sensor correcting apparatus for deriving value for correcting output signal from angular velocity sensor, angular velocity calculating apparatus, angular velocity sensor correcting method, and angular velocity calculating method

A measuring unit obtains measurement data of an object measured on the basis of a signal from a GPS satellite and angular velocity of an object output from an angular velocity sensor. An offset value computing unit estimates a running condition of the object on the basis of the measurement data and the angular velocity. The offset value computing unit sequentially derives temporary offset values while changing combination of the measurement data and the angular velocity in accordance with the estimated running condition of the object and, after that, executes statistical process on the temporary offset values, thereby deriving an offset value. An angular velocity conversion coefficient computing unit sequentially derives temporary angular velocity conversion coefficients on the basis of the measurement data and the angular velocity and, after that, executes statistical process on the temporary angular velocity conversion coefficients, thereby deriving an angular velocity conversion coefficient. An angular velocity converting unit derives final angular velocity on the basis of the angular velocity conversion coefficient, the offset value, and the angular velocity.
Owner:JVC KENWOOD CORP A CORP OF JAPAN

Power load forecasting method based on long-short term neural network

The invention relates to a power load forecasting method based on a long-short term neural network, which comprises the steps of S1, performing statistical processing on historical load information, historical temperature information and holiday information of a power grid in a forecast place, dividing the historical load information in every seven days of the power grid in the forecast place intoa group, forecasting the load of the forecast day by inputting 14 pieces of neuron information altogether including the historical load information and holiday information of six days before the forecast day and temperature level information and holiday information of the forecast day so as to serve as training samples, wherein the 14 pieces or neuron information and the training samples constitute a training set; S2, substituting the training set into the long-short term neural network to sequentially perform forward calculation and back propagation training, enabling the error of the training set to be reduced below an error threshold, and obtaining a trained long-short term neural network; and S3, inputting neuron information required by the forecast day into the trained long-short term neural network so as to perform load forecasting on each time point of the forecast day.
Owner:王芊霖

Method for bus origin-destination (OD) investigation by using mobile phone base station data and operating vehicle global position system (GPS) data

The invention provides a method for bus origin-destination (OD) investigation by using mobile phone base station data and operating vehicle global position system (GPS) data, comprising the following steps: 1) collecting mobile phone positioning data and bus GPS data; 2) transferring the mobile phone positioning data into travel information of users; 3) extracting characteristic values from the travel information of the users; 4) analyzing the extracted characteristic values to obtain basic travel characteristics; 5) matching bus travel information with the bus GPS data to obtain bus travel characteristics; and 6) carrying out statistical process on the obtained travel characteristics, and then outputting a population travel characteristic report form. The method is based on the mobile phone positioning data and the bus GPS data and then is used for performing a series of processes on the mobile phone positioning data and the bus GPS data, thereby automatically obtaining a high-quality, high-fineness and large time-span population travel characteristic reform form from a great amount of data, intelligently acquiring the population travel characteristics, reducing manpower and material resource consumption and improving the accuracy and effectiveness of the investigation.
Owner:广州通易科技有限公司

Arc detecting device and aircraft equipped therewith

An arc detecting device includes: a detector for acquiring time series data concerning a characteristic quantity, such as a voltage or a current in a circuit, targeted for detecting an arc; a basic data generator for generating basic data made of a plurality of frequency components, through frequency analysis from the acquired time series data; a data processor for statistically processing the generated basic data, thereby converting the basic data to an evaluation value highly correlative to an occurrence of the arc; and an arc judging unit for judging the occurrence of the arc, if the evaluation value exceeds a predetermined arc judgment threshold value. In this manner, the arc detecting device that is capable of effectively detecting the arc in a direct-current power supply circuit is provided.
Owner:SINFONIA TECHNOLOGY CO LTD
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