506results about How to "Avoid searching" patented technology

Disclosed is a system, method, and program for performing a join operation on a multi-column table and at least two satellite tables having a join condition. Each satellite table is comprised of multiple rows and at least one join column. Each multi-column table is comprised of multiple rows and at least one column corresponding to the join column in each satellite table. A join operation is performed on the rows of the satellite tables to generate a first join result comprising concatenations of the rows of the satellite tables. Less than all the concatenated rows in the first join result that satisfy the join condition are then selected. The selected concatenated rows in the first join result are then joined to the multi-column table.

A method and an apparatus that optimize operations for a key among a collection of key indexed data structures using meta data describing properties of the key with respect to the collection of data structures are described. The meta data may correspond to a cache dynamically updated to indicate invariants which are true for the key in a current state of the collection of data structures. Expensive calculations to search through the collection of data structures for the key may be avoided. For example, costly lookup operations over a collection of data structures may not be required at all if a key is known to always (or to never) reference certain specific values, or for these values to have certain meta-properties, in any of the collection of data structure globally throughout a system at a current state.

The present disclosure discloses methods and apparatuses of switching applications and adding entry information. The method includes: obtaining usage information of a user with respect to applications installed in a terminal, where the applications include one or more first applications and one or more second applications; and determining a second application associated with a first application based on the usage information to facilitate an addition of entry information of the associated second application to a running interface of the first application and to run the second application when the user executes a specified operation on the entry information of the associated second application. The present disclosure can save operation time of the user and reduce power consumption of a terminal device.

The embodiment of the invention discloses a method for a multimode terminal to register in a network and a terminal, relates to the technical field of communication and provides a solution for the problem that a multimode terminal is poor in network searching efficiency. The method comprises the following steps: the terminal determines an available network system at the start of network searching; the terminal judges whether the available network system is a network system supported by a telephone card; and the terminal uses the available network system to search a network and resister in the network when the available network system is a network system supported by the telephone card. The method is applicable to multimode terminals.

The invention provides a searching and shopping method based on a handheld terminal. The searching and shopping method comprises the steps of firstly establishing commodity picture index files in a visual feature database by extracting commodity pictures and commodity information of shopping websites and classifying image feature attribute values of the commodity pictures and memorizing the index files on a server; then searching similar commodities in confirmed or selected commodity category and commodity picture index files through the server according to uploaded commodity pictures and image feature attribute values; and finally recommending the searched commodity pictures and commodity information to users according to searching results of the similar commodities. Due to the fact that the image feature attribute values of the commodity pictures are combined, required commodities are accurately searched during retrieval, meanwhile manual retrieval or searching based on visual features is avoided, and the convenience and the accuracy of searching and shopping are improved under the condition that the appearances of the required commodities are known.

An electronic equipment includes a RAKE receiver that includes at least one finger having a settable delay, a transducer operable to provide a signal indicative of motion of the electronic equipment, and a delay estimator circuit operative to calculate a duration between fading nulls of a received signal based on the motion signal of the electronic equipment. The time delay of the at least one finger is set based on the duration between fading nulls.

Embodiments of systems and methods disclosed herein provide solutions for predicting vehicle invoice pricing, trim, and options by starting from scratch (raw data), transforming the raw data into actionable data, and comprehensively exploring all possible option combinations that can match a vehicle's Manufacturer Suggested Retail Price (MSRP). Embodiments implement algorithms that determine the trim of a vehicle and intelligently analyze all possible option combinations that would result in a target MSRP while avoid searching unnecessary vehicle configurations. The algorithms can be used to predict the trim, invoice, and options of a vehicle based on the vehicle's VIN and MSRP.

Disclosed is a system, method, and program for searching a list of entries. Each entry is comprised of multiple fields. Each field in the entry may include one of a range of possible values for that field. If search criteria is provided for less than all of the fields, then multiple search keys will be generated such that each generated search key includes a search value for each field. The search value for each field for which there are no provided search criteria comprises one of the possible values for that field. A search operation is executed for each of the generated search keys to determine entries in the list that include field values that match the search values in the search key.

An embodiment of the invention provides a data update method for a Key-Value storage system via distributed key values. Through replication of nodes requiring update, father nodes, ancestor nodes, and root nodes to a buffer layer of the Key-Value storage system, modification of key values and contents of the nodes requiring update, the father nodes, and the ancestor nodes, and modification of the contents of the root nodes, the nodes are made different from original nodes in the storage layer. The method is characterized in that, the nodes requiring update, the father nodes, and the ancestor nodes are first stored in the storage layer, and then the root nodes are stored in a key value pair system. Since the nodes requiring update in the buffer layer are stored in the storage layer prior to storage of the root nodes in the buffer layer in the storage layer, reading operation in the storage process of the nodes requiring update does not enable reading of the nodes requiring update, thereby preventing reading of dirty data. The invention also provides a corresponding method for reading index nodes and a server.

The invention discloses a searching shopping method based on pictures. The method includes the steps that first, a user uploads a goods picture needing to be searched for to a server from a terminal, the uploaded goods picture is subjected to feature classification on the server side, a picture feature value is extracted, and searching is conducted in a goods picture index file through the obtained picture feature value; then the searched goods picture and goods information are recommended to the user by the server according to the research results of similar goods. By combining the picture feature value of the goods picture, the needed goods can be searched for more accurately in the searching process, meanwhile, further manual retrieval or searching based on visual features is avoided, and the searching shopping convenience and accuracy are improved under the condition that the appearance of the needed goods is known. Moreover, an existing hand-held terminal generally has a photographing function, when the user sees the goods which he or she pays close attention to in a market or other places, the user can take a picture and send the picture to the server, and accordingly the goods picture and the goods information can be searched for accurately and conveniently for shopping.

The invention discloses a method for optimizing search results, which comprises acquiring correlation evaluation of files containing search result; and sequencing the files containing search result according to the correlation evaluation of the files containing search result and content of the files containing search result. The inventive method for optimizing search result can make clear the actual search intent of user according to the correlation evaluation of files containing search result fed back from user, can sequence the files containing search result in combination with the files containing search result, and can feed files actually interested by user, useful to user and meeting user's search intent back to the user with high priority, so as to remarkably reduce user's search time, and improve search efficiency. By using the invention, users can rapidly, accurately and conveniently acquire the information required by them.

The invention belongs to the technical field of electromagnetic tracking, and particularly discloses an electromagnetic tracking system and method based on rapid determination of a vector rotation angle of maximum magnetic induction intensity. The electromagnetic tracking system disclosed by the invention consists of a three-axis magnetic-field sensor device, magnetic-field source devices, a controllable constant-current source device and a control processing display device; the controllable constant-current source device stimulates three coils which are wound on a magnetic core made of soft magnetic ferrite material and are mutually orthometric, and the central points of the coils are overlapped, so that one magnetic-field source device is formed; the three-axis magnetic-field sensor device is used for detecting the magnetic induction intensity of the magnetic-field source devices, and the control processing display device can control the controllable constant-current source device to stimulate the coils and can perform positioning calculation according to the magnetic induction intensity detected by the three-axis magnetic-field sensor device. Due to the adoption of the electromagnetic tracking system disclosed by the invention, positioning can be realized by only stimulating the three coils once, the searching process is avoided, the real-time performance is significantly improved, the stability is high, the calculating complexity is low, and the electromagnetic tracking system can be applied to the navigation of minimally invasive surgery and other fields, such as virtual (enhancing) reality, and three-dimension ultrasonic imaging.

The invention discloses an adaptive high-precision phase estimation method for an interferometric SAR, comprising the following steps of: structuring optimum weight vectors in combination with a Wiener filter theory, performing an eigen decomposition on an optimum covariance matrix composed of the optimum weight vectors to obtain a signal subspace and a noise subspace, adequately utilizing a corresponding pixel pair and the coherent information of the neighboring pixels thereof to structure a space spectrum function according to the orthogonality of the signal subspace and the noise subspace in a MUSIC (multiple signal classification) algorithm, and precisely estimating the interferometric phase between the corresponding pixels via a spectral peak searching. The optimum weight is obtained by only a Wiener filter without the need to determine a registration error and the direction thereof, thereby solving the problem of large computational burden in the traditional InSAR (interferometric synthetic aperture radar) interferometric phase estimation. The adaptive high-precision phase estimation method for the interferometric SAR disclosed by the invention is adaptive to the field of accurate surface parameter inversion of InSAR complex scene and the like.

The invention discloses a target tracking method based on triple twin hash network learning, and relates to the technical field of computer vision, target tracking and deep learning. According to themethod, firstly, a triple twin hash network is constructed, and the network is composed of a data input layer, a convolution feature extraction layer and a hash coding layer. In the initial training process of the network, a training data set and a random gradient descent back propagation algorithm are used for training the triple twinning Hash network, and after training is completed, the initialcapacity of target positioning can be obtained through the network. In the tracking process, firstly, an input image passes through a triple twin region recommendation network to obtain correspondingcandidate frames, then the candidate frames are input into a triple twin Hash network to be subjected to forward processing, the similarity between each candidate frame and a query sample is calculated, the candidate frame with the highest similarity is selected as a tracking target object, and therefore target tracking is achieved.

The invention provides a business object display method and a business object display device. The method comprises steps that according to the historical behavior data of a first business object displayed on a first display page, a correction index for correcting a clicking rate is trained; when a searching keyword is received, one or more second business objects in matching with the searching keyword are searched, the searching keyword is associated with a second display page, and one or more second business objects are associated with one or more prediction clicking rates; a correction index of the first display page identical to the second display page in type is searched; according to the one or more prediction clicking rates corrected by the correction index, an ordering score of one or more second business objects is calculated; returning to one or more second business objects having a highest ordering score is carried out so as to realize display on the second display page. The method is advantaged in that learning efficiency is greatly improved, learning cost is greatly reduced, adaptation to different scenes can be realized, and accuracy of the correction index is improved.

The invention belongs to the technical field of computer vision, and particularly relates to an image stitching real-time performance optimization method. The method comprises the following steps of image NCC region matching, SURF (speeded up robust feature) threshold value estimation and feature point matching. Under the condition of precisely solving the transformation matrix, through algorithm optimization, the detection feature point number is greatly reduced; meanwhile, the image overlapping region size is pre-estimated through a local region matching algorithm NCC; the feature point search range in the image stitching process is reduced through locking the overlapping region. The NCC algorithm obtains a cross-correlation maximum value window for estimating the approximate matching condition of the image; the feature point finding among local images is avoided; the real-time performance of the image stitching is improved through the overlaying use of two methods.

The invention provides a trans-camera target tracking method and a trans-camera target tracking device on the basis of dynamic path trees. The trans-camera target tracking method includes carrying out single-camera target tracking on specified targets in the visual angle range of each optional camera in each preliminarily constructed camera network until the specified targets leave the visual angle range of the current camera; acquiring currently required-to-be-searched camera lists according to target search region switching algorithms; detecting objects for video data of all cameras in the camera lists and screening suspicious objects by the aid of visual similarity matching algorithms; processing the suspicious objects according to dynamic path tree models and inferring movement tracks of the specified targets. The similarity of the visual appearance of the suspicious objects and the visual appearance of the specified targets is higher than preset thresholds. The trans-camera target tracking method and the trans-camera target tracking device have the advantages that accurate trans-camera target tracking can be carried out under the condition of the possibly minimum computational resource expenditure, and paths can be accurately predicted.

A navigation device and a guide route search method prevents searching for a detour route, and shortens the time required for setting an eventual guide route. A first partial route is extracted from a first guide route found in accordance with map data divided into three hierarchical levels, based on information about a road network. The first guide route is the route from the current location to a destination. A second partial route is obtained by performing a route search between the nodes at opposite ends of the first partial route, based on the map data containing the lowest level. A second guide route is obtained by replacing the first partial route in the first guide route with the second partial route, and is set as the eventual guide route. Accordingly, a subsequent search operation is performed on a partial detour route in the first guide route, based on the map data containing the lowest level.

The invention discloses a network content acceleration method based on user behavior. A basic principle of the method is as follows: content to be accessed by a user in a certain period in the future is pre-fetched in a caching space of a home gateway, so that the user is not required to wait when consuming the content and can have very good user experience. A CMA (content management agent) mounted at the home gateway and a user behavior prediction center are adopted in the method. The CMA collects user behavior information and sends the user behavior information to the user behavior prediction center; the CMA pre-fetches the network content and caches the network content in a local storage of the home gateway according to a prediction report and redirects a content consumption request of the user to a local cache. The user behavior prediction center predicts the network content which can be consumed by the user in the certain period in the future on the basis of historical behavior of the user and returns a prediction result to the corresponding CMA. With the adoption of the method, the problem that the caching time is too long when the user consumes high-resolution videos can be effectively solved; meanwhile, the pressure of a content server can be reduced.

The invention discloses a general resource management method in a hybrid peer-to-peer network environment, comprising a plurality of steps that: (1) all the resources of a node P are described uniformly by the node P, the internal resource of the higher-level service corresponds to the description of the general resource; (2) the node P is added into a hybrid topology, then the node is determined as a role of a strong node or a weak node; (3) resource releasing, resource searching and resource deleting are respectively carried out according to the different management operations. The invention has the advantages that: the resource management opens to a plurality of services based on peer-to-peer network technology due to the standard definition of the general description for the resource; in addition, the effective management of the uniform resource is realized in the dynamic network environment by the construction of a peer-to-peer network environment with the mutual mixture of distributed Hash table and delayed aggregation multi-analytical annular topology; a plurality of services are supported by using open resource management method, so the waste of network bandwidth and node calculation ability is reduced, moreover, the dynamic property of the system and the effectiveness of resource searching is guaranteed.

The invention relates to the technical field of radars, in particular to the application of a single base MIMO (Multiple Input Multiple Output) radar system and a compression spatial spectrum-based single base MIMO radar target DOA (Direction of Arrival) estimation method. The compression spatial spectrum-based single base MIMO radar target DOA estimation method comprises the steps of enabling an emission array to emit phase-coded signals which are mutually orthorhombic and enabling a receiving terminal to perform matched filtering processing through a receiving array matching filter; performing dimensionality reduction processing on J receiving data subjected to snapshotting matched filtering through a dimensionality reduction array; calculating a covariance matrix R of the receiving data Y subjected to dimensionality reduction processing and working out an intersection subspace of a noise subspace and a conjugate subspace thereof; constructing a compression spatial spectrum function and searching the compression spatial spectrum function; excluding a false DOA and obtaining a real DOA of a target. The compression spatial spectrum-based single base MIMO radar target direction of arrival estimation method avoids a combined search of a two-dimension DOA of a traditional MUSIC algorithm when searches the airspace DOA, and only needs one-dimensional space search and the algorithm complexity is reduced.

The invention provides an image screening method, device and terminal. The method is applied to a first terminal; when the first terminal starts an image browsing interface, and the first terminal receives at least one input image attribute parameter and extracts all images containing at least one image attribute parameter from stored images according to the at least one image attribute parameter. Thus, the terminal screens the images required by a user accurately through the image attribute parameters input by the user, the time for the terminal processing images is shortened, power consumption of the terminal is reduced, time for the user finding out the images is also shortened, and operation of the user is facilitated.

The invention discloses an acquisition method, an acquisition system and an acquisition device for information of a contact person. The method comprises the steps of acquiring a name of the contact person input by a user through a dialing interface and inquiring that whether basic information of the contact person is stored in a local data base according to the name of the contact person; if yes, acquiring the basic information of the contact person stored locally; if not, acquiring basic information of the contact person corresponding to the name of the contact person from a data base server in the network and storing the acquired basic information of the contact person to the local data base; and establishing the communication connection through the acquired basic information of the contact person and the contact person. According to the method, a large scope of search for the contact person can be realized through a dialing program, thereby simplifying the search process and saving the system resources.

A method and an apparatus that generate tracer data randomly and infrequently for origins and destinations of values created during runtime of a compiled code of a source code is described. A tracer graph may be updated to record the origins and destinations of the values during the runtime. The compiled code may be optimized to reduce processing resources between the origins and the destinations of the values according to the tracer graph. The optimized compiled code may be executed for at least a portion of the source code.

A method and an apparatus that modify pointer values pointing to typed data with type information are described. The type information can be automatically checked against the typed data leveraging hardware based safety check mechanisms when performing memory access operations to the typed data via the modified pointer values. As a result, hardware built in logic can be used for a broad class of programming language safety check when executing software codes using modified pointers that are subject to the safety check without executing compare and branch instructions in the software codes.

A method of automatically assigning class labels to objects is provided. The method uses object data indicative of a plurality of parameters associated with each object. The method comprises (i) identifying, from the object data or from a lower-dimensional encoding of the object data a plurality of cluster centres in a d-dimensional space, each cluster centre corresponding to one of the class labels; (ii) for respective cluster centres, determining a surrounding region based on a nearest neighbour cluster centre, and assigning the respective class label to objects within the surrounding region; (iii) generating a predictive model using the object data, or the lower-dimensional encoding of the object data and the class labels of the assigned objects; and (iv) assigning class labels to unassigned objects using the predictive model. A corresponding system for performing the above method is also provided.

The invention relates to the field of monitoring and aid to taxiing of an aircraft at an airport.The invention is a method of checking and monitoring the taxi plan and relates to a monitoring system comprising means for checking the pathway of the plan and means for signalling on the taxi aid the waiting time for the next clearance ahead of the aircraft along the pathway, the means for checking the pathway comprising a device for checking the pathway constraints and a device for checking the clearances, the device for checking the constraints making it possible to test and to display on the taxi plan the information descriptive of the constraints and the device for checking the clearances making it possible to check the clearances and to add the missing clearances to the taxi plan.