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1419 results about "Information gain" patented technology
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Differentially private machine learning using a random forest classifier
A request from a client is received to generate a differentially private random forest classifier trained using a set of restricted data. The differentially private random forest classifier is generated in response to the request. Generating the differentially private random forest classifier includes determining a number of decision trees and generating the determined number of decision trees. Generating a decision tree includes generating a set of splits based on the restricted data, determining an information gain for each split, selecting a split from the set using an exponential mechanism, and adding the split to the decision tree. The differentially private random forest classifier is provided to the client.
Owner:SNOWFLAKE INC
Digital broadcasting system and method of processing data in digital broadcasting system
InactiveUS7733819B2Reduce in quantityImprove efficiencyGHz frequency transmissionBroadcast transmission systemsMobile businessInformation gain
Owner:LG ELECTRONICS INC
Method and system for electronic content storage and retrieval using galois fields and informaton entropy on cloud computing networks
ActiveUS20140189792A1Reducing location guessingWeb data indexingDigital data processing detailsAlgorithmTheoretical computer science
A method and system for electronic content storage and retrieval using Galois Fields and information entropy on cloud computing networks. Electronic content is divided into plural portions and stored in plural cloud storage objects based on determined information entropy of the electronic content thereby reducing location guessing of the electronic content using information gain and mutual information. Storage locations for the plural cloud storage objects are selected using a Galois field. The plural cloud storage objects are distributed across the cloud network. The Galois filed and information entropy providing various levels of security and privacy for the electronic content.
Owner:LESAVICH STEPHEN +1
Panorama Imaging Using a Blending Map
ActiveUS20110141300A1Television system detailsGeometric image transformationPattern recognitionImage resolution
A technique of generating a panoramic image involves acquiring a set of at least two main image frames, as well as corresponding generating and / or acquiring corresponding relatively low-resolution image frames, of overlapping portions of a panoramic scene. A map or other information is stored relating to the generation of a low-res panorama. A main panorama image is formed by joining main image frames based on the map or other information gained in the low-res process.
Owner:FOTONATION LTD
Scalable traffic classifier and classifier training system
A traffic classifier has a plurality of binary classifiers, each associated with one of a plurality of calibrators. Each calibrator trained to translate an output score of the associated binary classifier into an estimated class probability value using a fitted logistic curve, each estimated class probability value indicating a probability that the packet flow on which the output score is based belongs to the traffic class associated with the binary classifier associated with the calibrator. The classifier training system configured to generate a training data based on network information gained using flow and packet sampling methods. In some embodiments, the classifier training system configured to generate reduced training data sets, one for each traffic class, reducing the training data related to traffic not associated with the traffic class.
Owner:AT&T INTPROP I L P
Method and device for recommending video source associated with television program
InactiveCN103501449AShorten the timeSelective content distributionInformation gainComputer engineering
Owner:KUYUN INTERACTIVE TECH
Apparatus and method for accessing random access channel in a wireless communication system
ActiveUS20120320842A1In VoIP networksIn M2M and D2D communicationCommunications systemInformation gain
An apparatus and method for accessing a Random Access Channel (RACH) at a low-power terminal in a wireless communication system are provided, in which resource allocation information is acquired according to used resource identification information included in system information broadcast from a Base Station (BS), and a random access preamble is transmitted to the BS according to the acquired resource allocation information.
Owner:SAMSUNG ELECTRONICS CO LTD
Method and system for providing relevant information to a user of a device in a local network
InactiveUS20080288641A1Minimization requirementsExperienceDigital data information retrievalDigital computer detailsRelevant informationInformation gain
A method and system for providing information to a user of a device on a local network is provided. This involves obtaining information about current user activity on the local network, obtaining contextual information about current user activity on the local network and obtaining additional information interrelated to the contextual information and the user activity information. Then correlations are identified between the additional information, the contextual information and the user activity information. The correlations are used in forming a query to search for information related to the current user activity, to provide to the user.
Owner:SAMSUNG ELECTRONICS CO LTD
Deterministic High-Density Single-Cell Trap Array
ActiveUS20130078163A1Meet needsReduce shearBioreactor/fermenter combinationsBiological substance pretreatmentsHigh densityShear stress
A microfluidic platform for single-cell capture, stimulation, and imaging. It passively traps 4,000 single cells on a 4.5 mm2 footprint in 30 seconds, with a single-cell loading efficiency of 95%. The array format and optimized geometry allows for easy, robust and efficient single-cell loading, while maintaining captured cells in a low shear stress environment for long-term studies. Because cells are captured sequentially, the system is adequate for rare cell samples. Trapped cells can be exposed to various environmental conditions and chemical stimulus and their dynamic response can be monitored over time. The information gained from high-throughput, single-cell time lapsed imaging presents new opportunities in quantifying cellular responses, as averaged information by other measurement methods eliminates sub-population phenotypes.
Owner:GEORGIA TECH RES CORP
Text sentiment classification method facing Chinese Web comments
InactiveCN103116637AEffective data miningEffective classificationSpecial data processing applicationsFeature vectorClassification methods
The invention belongs to the field of data processing technology and discloses a text sentiment classification method facing Chinese Web comments. The text sentiment classification method includes a training process and a classification process. The training process includes the steps of carrying out training text preprocessing, carrying out feature selecting, carrying out vectorization representation of a text and obtaining a training classifier. The classification process includes the steps of carrying out test text preprocessing, carrying out feature selecting, utilizing the classifier to classify and outputting a classification result. On the basis of an original document classification method, document frequency (DF) and information gain (IG) are used and a sentiment dictionary of negative words, degree adverbs and dynamic sentiment words are built to distinguish sentiment tendency of Chinese feature words, select feature words, calculate a feature weight value and build a feature vector. Moreover, a NaiveBayes classification algorithm is used for training to obtain the classifier, carrying out sentiment classification on the text, providing effective data mining for users and then carrying out analysis processing.
Owner:WUXI NANLIGONG TECH DEV +1
Method and system for electronic content storage and retrieval using galois fields and information entropy on cloud computing networks
InactiveUS9137250B2Reducing location guessingWeb data indexingDigital data processing detailsObject basedInformation gain
A method and system for electronic content storage and retrieval using Galois Fields and information entropy on cloud computing networks. Electronic content is divided into plural portions and stored in plural cloud storage objects based on determined information entropy of the electronic content thereby reducing location guessing of the electronic content using information gain and mutual information. Storage locations for the plural cloud storage objects are selected using a Galois field. The plural cloud storage objects are distributed across the cloud network. The Galois filed and information entropy providing various levels of security and privacy for the electronic content.
Owner:LESAVICH STEPHEN +1
Image processing apparatus
ActiveUS20070273787A1Lower frame rateEfficiently conductedPicture reproducers using cathode ray tubesPicture reproducers with optical-mechanical scanningImaging processingInformation gain
A technique for flexibly converting the number of frames of a displayed image on the basis of a motion in the image or information of an image signal such as a program genre is provided. An image processing apparatus includes an input unit to which an image signal having a predetermined frame rate is input, an information acquirer for acquiring information concerning the input image signal, and a frame rate converter for converting the frame rate of the input image signal and outputting a resultant signal. The frame rate converter conducts the frame rate conversion of the input image signal on the basis of the information (such as the motion in the image or the program genre) of the input image signal acquired by the information acquirer.
Owner:MAXELL HLDG LTD
Reception apparatus, reception method, program and information processing system
ActiveUS20130212634A1Two-way working systemsSelective content distributionInformation processingInformation gain
Owner:SATURN LICENSING LLC
Radioactive-emission-measurement optimization to specific body structures
InactiveUS20070156047A1Inexpensive and portable hardwareRapid and inexpensive preliminary indicationImage enhancementImage analysisSonificationWhole body
Systems, methods, and probes are provided for functional imaging by radioactive-emission-measurements, specific to body structures, such as the prostate, the esophagus, the cervix, the uterus, the ovaries, the heart, the breast, the brain, and the whole body, and other body structures. The nuclear imaging may be performed alone, or together with structural imaging, for example, by x-rays, ultrasound, or MRI. Preferably, the radioactive-emission-measuring probes include detectors, which are adapted for individual motions with respect to the probe housings, to generate views from different orientations and to change their view orientations. These motions are optimized with respect to functional information gained about the body structure, by identifying preferred sets of views for measurements, based on models of the body structures and information theoretic measures. A second iteration, for identifying preferred sets of views for measurements of a portion of a body structure, based on models of a location of a pathology that has been identified, makes it possible, in effect, to zoom in on a suspected pathology. The systems are preprogrammed to provide these motions automatically.
Owner:SPECTRUM DYNAMICS MEDICAL LTD
System and Methods for Side-Channel Attack Prevention
InactiveUS20090010424A1Internal/peripheral component protectionSecret communicationProcessor registerCryptosystem
A side channel attack utilizes information gained from the physical implementation of a cryptosystem. Software and hardware-based systems and methods for preventing side channel attacks are presented. Cryptographic hardware may introduce dummy operations to compensate for conditional math operations in certain functions such as modular exponentiation. Cryptographic hardware may also introduce random stalls of the data path to introduce alterations in the power profile for the operation. A cryptographic function may be mapped to a micro code sequence having a plurality of instructions. Firmware in the cryptosystem may alter the micro code sequence by altering the order of instructions, add dummy operations in the micro code sequence, break the micro code sequence into multiple sub micro code sequences and / or change the register location for source and destination operands used in the sequence. These alterations are designed to randomly change the timing and power profile of the requested function.
Owner:AVAGO TECH INT SALES PTE LTD
Information driven routing in ad hoc sensor networks
InactiveUS20050138200A1Improve performanceEnhanced informationError preventionTransmission systemsShort path algorithmEntry point
A sensor network routing is formulated as a joint optimization problem taking into account routing cost and information aggregation. Information gain is used explicitly to optimize the routing path. The optimization approach involves a shortest path algorithm in a modified network graph. A method is provided that routes queries from an arbitrary entry point to high activity network sensor regions using inputs from sensor nodes along the path to refine the message. The multiple step look-ahead approach provides deadlock avoidance and routing around sensor network holes. For point-to-point query routing, a method based on real-time A* (RTA*) search is provided to find a path which takes detours efficiently to maximize information aggregation. Future information expected to be gained along the path from an arbitrary node to an exit node may be estimated to allow the selection of a successor sensor node.
Owner:CISCO TECH INC
Service providing system and method which divides a request into plural service requests and provides an integrated service based on service utilization history information in response to the request
InactiveUS6847988B2Efficient use ofMultiple digital computer combinationsBuying/selling/leasing transactionsService provisionInformation gain
In a service providing system, a plurality of information acquiring computers for acquiring informations are connected via a network to a plurality of information providing computers for providing information. A service providing computer for executing an information providing service with respect to apparatuses for acquiring information is interposed between a plurality of in information acquiring apparatuses and a plurality of information providing apparatuses. The service providing computer receives a content of a request of the information acquiring computer, and determines a sort of information to be provided with a user based upon a quality of this request content, individual information and past historical information of the user, and also various sorts of conditions when the request is received. The service providing computer requests at least one of these information providing computers to provide the information. The information obtained from the request result is integrated by the service providing computer to be transmitted to the information acquiring computer.
Owner:HITACHI LTD
Degree of interest estimating device and degree of interest estimating method
ActiveUS20130091515A1Accurately estimate a degree of interest of a viewerAnalogue secracy/subscription systemsBroadcast information monitoringPattern recognitionInformation gain
An interest degree estimating device, which estimates a degree of interest of a user in a video displayed on a screen, includes: an eye gaze detecting unit for detecting an eye gaze direction of the user; a saliency information obtaining unit for obtaining saliency information on a saliency area having salient attractiveness in the video; and a user response analyzing unit for calculating a correlation between the saliency area specified from the obtained saliency information and the detected eye gaze direction, and estimate the degree of interest of the user in the video, the degree of interest being higher as the calculated correlation is higher.
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
Method for estimating health state of power battery
InactiveCN108445406ARealize online estimationImprove fitting abilityElectrical testingPower batteryInformation gain
The invention discloses a method for estimating the health state of a power battery. The method comprises steps of acquiring the constant-current charging voltage V, current I and time t of a batteryto obtain charging capacity Q, establishing a V-Q relationship curve, acquiring a capacity increment curve peak value and peak position information, establishing a RBF neural network, training a RBF neural network model by a particle swarm optimization algorithm, and estimating the health state of the battery by using the generated RBF neural network. The method establishes a mapping relationshipamong the constant-current charging capacity increment curve peak value, the peak position and the health state of the battery by means of a data driving mode without establishing an equivalent circuit of the electric vehicle power battery, thereby improving estimation accuracy and realizing online real-time estimation for the overall estimation of a battery pack.
Owner:GUILIN UNIV OF ELECTRONIC TECH
Method and system for classifying data by adopting decision tree
ActiveCN102214213AFully parallelSolve the problem of large-scale data that cannot be processedSpecial data processing applicationsData setInformation gain
The invention discloses a method and system for classifying data by adopting a decision tree. The method comprises the following steps of: parallel computing the information gain of each attribute in training data based on a MapReduce mechanism, and selecting optimum division decision attributes as nodes to construct the decision tree; based on the decision tree, classifying input data records. Aparallel decision tree ID3 algorithm is realized based on the MapReduce. A large data set can be processed, and the parallel efficiency is high. The parallel computing is realized for the nodes in the decision tree and the nodes in the same layer.
Owner:INST OF COMPUTING TECH CHINESE ACAD OF SCI
Parking management method and apparatus
ActiveCN105701869AHigh speedImprove parking efficiencyTicket-issuing apparatusIndication of parksing free spacesInformation gainParking space
The invention provides a parking management method and apparatus. The parking management method comprises the steps of receiving parking request information, including terminal identifier, vehicle information, parking time and parking types, sent by a user terminal, obtaining free parking space information matching with the parking request information according to the parking request information, sending the free parking space information to the user terminal, receiving the information of a selected free parking space sent by user terminal, receiving unlocking request information sent by the user terminal, sending an unlocking instruction to a parking lock corresponding to the free parking space selected by the user so that the block rod of the parking lock drops when controlled by the unlocking instruction, receiving vehicle leaving information sent by the parking lock and updating the use state of the parking lock according to the vehicle leaving information. Dropping and raising of the block rods of parking locks are automatically detected and controlled. A user can rapidly park and drive away from a parking lot, thereby substantially improving parking efficiency.
Owner:王猛
Abnormality determining method, and abnormality determining apparatus and image forming apparatus using same
ActiveUS7110917B2Avoid misjudgmentDetermination can be decreasedNuclear monitoringDigital computer detailsInformation gainData mining
Owner:RICOH KK
Biometric information verifying apparatus, biometric information narrowing apparatus, and computer-readable recording medium storing a biometric information narrowing program thereon
InactiveUS20050223236A1Narrowing down of registered feature information is reliably preventedAccurate and reliable processImage analysisComputer security arrangementsPattern recognitionPalm print
Every time to-be-verified biometric is input, the apparatus reflects the degree of fluctuation in the to-be-verified biometric information on narrowing down of registered feature information. After to-be-verified biometric information is input through the a biometric information input unit, the to-be-verified sub-feature information obtaining unit extracts two or more items of sub-feature information from the to-be-verified biometric information. Based on the pieces of to-be-verified sub-feature information, the to-be-verified sub-feature information assessing unit assesses an acquisition stability of each item of to-be-verified sub-feature information. According to the acquisition stability assessment, the registered feature information narrowing unit selects one or more pieces of registered feature information to be subjected to comparison / verification, thereby narrowing down the registered feature information. The apparatus applicable to 1-to-N verification using biometric information such fingerprints, palm prints, iris patterns, facial images, voice patterns, and blood vessel patterns.
Owner:FUJITSU LTD
Information acquisition method and device
InactiveCN104113786ASolve the problem of low acquisition efficiencyImprove acquisition efficiencyTelevision system detailsSelective content distributionThe InternetInformation gain
The invention relates to an information acquisition method and device, and belongs to the technical field of internet. The information acquisition method includes: acquiring associated information of at least one video element in a video, each video element being an image element, a sound element or a playing section in the video; and displaying the associated information at a designated moment. The problem of relatively low acquisition efficiency of information in related technology is solved; and effects that a terminal can display associated information of video elements at a designated moment, and acquisition efficiency of information is improved are achieved.
Owner:XIAOMI INC
System and method for monitoring an analyte
InactiveUS20070111225A1Microbiological testing/measurementMaterial analysis by optical meansAnalyteFluidics
The present invention provides for a monitoring system and method to monitor an analyte, including determining the presence of the analyte and analyzing the analyte; for example, cellular chorography and biological threats. The system and method use a fluidics apparatus (e.g., a flow cytometer), a computer, a probe synthesizer and / or an initial set of fluorophore conjugated probes to monitor the analyte. The fluidics apparatus is adapted to determine the presence of the analyte based on the intrinsic fluorescence of the analyte, and / or to determine the binding of the probes to the analyte in the sample. The binding information is analyzed by the computer by comparing the binding results with a database of information regarding the analyte. The information gained allows the probe synthesizer to synthesize new probes for a subsequent iteration of the process, wherein additional information regarding the analyte is gained with every iteration.
Owner:CALIFORNIA INST OF TECH
Method and apparatus for providing search results from content on a computer network
InactiveUS20080065600A1Less direct connectionIncrease volumeDigital data information retrievalSpecial data processing applicationsThe InternetInformation gain
A user enters a search query at interface 1 for performing a search on a computer network, such as the Internet. The search results are enhanced by adjusting their weightings to take into account previous searches carried out by members of a group, the membership of which is selected by the user. The group may be a user-defined co-user list, for example. Those previous search results that were of interest to members of the group are thus given greater prominence in the search results presented to the user at display 8. The user's behavior in considering the search results is monitored and the information gained used to update a database 5 holding group search information.
Owner:LUCENT TECH INC
Method and device for loading recommended information in read mode of webpage
The invention provides a method and a device for loading recommended information in a read mode of a webpage and relates to the technical field of a browser. The method comprises the steps of switching the current page to the read mode to be displayed, recording the reading behavior information of a browser user, generating user reading preference information according to the reading behavior information, acquiring recommended information related to the user reading preference according to the reading preference information, and loading and displaying the acquired recommended information in the reading mode of the browser. According to the method and the device disclosed by the invention, the scope of information data display is expanded, related information loaded according to the reading behavior of the user can be displayed in the reading mode, and more individualized information related to reading can be provided for the user in time.
Owner:360 TECH GRP CO LTD
Information providing device, information providing server, vehicle assistance system, navigation device, and charging cable
ActiveUS20120109409A1Instruments for road network navigationBatteries circuit arrangementsElectrical batteryInformation gain
It is an object to provide a system for assisting a vehicle on the edge of battery exhaustion. An information providing device includes: an information acquiring part for acquiring the current location of a vehicle and the amount of power stored in a power storage unit of the vehicle from a plurality of vehicles; a vehicle selecting part for selecting one or more vehicles as available vehicles for power supply from the plurality of vehicles based on the respective current locations and the amounts of stored power of the plurality of vehicles, the one or more vehicles to be selected being capable of supplying charging power to a target vehicle requiring charge of its power storage unit; and a notifying part for notifying of an available vehicle for power supply selected by the vehicle selecting part.
Owner:SMK CORP
Access information relay device, a network device, an access information managing device, a resource managing device, and an access control system
InactiveUS20060173846A1Digital data protectionDigital data authenticationControl systemInformation access
An access information managing device, an access information relay device, a network device, a resource managing device, and an access control system are disclosed, whereby access information of each resource is acquired and transmitted to an accessing party. The access control system includes the access information managing device that includes an access information generating unit for generating access information according to a request for information for accessing resources, and for transmitting the generated access information, the access information relay device that includes an access information acquiring unit for acquiring access information, and a communicating unit for transmitting the access information to the accessing party, the network device that includes an access control unit for accessing the resources based on the access information, and the resource managing device that includes a distributing unit for distributing the resources based on the provided access information.
Owner:NTT DOCOMO INC
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