1384 results about "Reading (computer)" patented technology

The invention provides a multi-thread parallel processing method based on a multi-thread programming and a message queue, belonging to the field of high-performance computation of a computer. The parallelization of traditional single-thread serial software is modified, and current modern multi-core CPU (Central Processing Unit) computation equipment, a pthread multi-thread parallel computing technology and a technology for realizing in-thread communication of the message queue are utilized. The method comprises the following steps of: in a single node, establishing three types of pthread threads including a reading thread, a computing thread and a writing thread, wherein the quantity of each type of the threads is flexible and configurable; exploring multi-buffering and establishing four queues for the in-thread communication; and allocating a computing task and managing a buffering space resource. The method is widely applied to the application field with multi-thread parallel processing requirements; a software developer is guided to carry out multi-thread modification on existing software so as to realize the optimization of the utilization of a system resource; and the hardware resource utilization rate is obviously improved, and the computation efficiency of software and the whole performance of the software are improved.

The invention discloses a recommendation list generation method, a recommendation list generation device, a media server, a client and a method, and belongs to the technical field of computers. The embodiment of the invention generates a recommendation list according to files in classes with higher user reading frequency for the file reading records of a user. In the embodiment, the likes and dislikes of the user can be learned according to the file reading records of the user, thereby generating the recommendation list for the files in the favorite classes of the user. Compared with the conventional single recommendation list way, the embodiment of the invention can be closer to the likes and dislikes of the user, improve user experiences, increase the hit rate, enable the user to more rapidly find own interested files and solve the problems of poor experiences and wasting of system resources and network resources caused by the random clicking of the user.

The invention relates to a method for deleting duplicated data in a file system in real time, and belongs to the technical field of computer data storage. In a file system establishment stage, a file metadata table, a data block index and a file constitution table are set in an embedded database; and in a file system operation stage, operating commands initiated to the file system by applications are received and responded through a file system driver, and include establishing a new file, writing data to an existing file, reading data from the existing file and deleting the existing data. The method simultaneously supports fixed-length and variable-length file blocking methods, and can delete the duplicated data in the file system in real time, save storage space and improve the utilization efficiency of storage equipment; and the process of deleting the duplicated data is completely transparent to the applications and a user, the file operation of various conventional applications is seamlessly compatible, and almost all negative effects on the user experience are avoided.

The invention relates to a disk array data reconstruction method which pertains to a computer data storage method and solves the problem that the existing disk array data reconstruction method takes too much time and affects the reading and writing performances and reliability of a storage system. A disk array of the invention is provided with a main control module, reading and writing processing modules and a reconstruction module and comprises the steps of initialization, diary pot diagram update, reconstruction based on diaries and finishing. The method instructs data reconstruction process by the real-time monitoring of disk space using status of the disk array; when space that is not accessed is reconstructed, the only requirement is to write 0 in all corresponding data blocks newly added into a disk, thus greatly reducing physical disk visiting time brought by reconstruction, increasing reconstruction speed and reducing the response time of user access; the reconstruction method does not change the reconstruction procedure or the distribution manner of disk array data, can conveniently optimize various traditional disk array data reconstruction methods and is applicable to the construction of storage systems with high performance, high usability and high reliability.

The invention is applicable to the storage field, particularly relates to distributed storage systems and discloses a distributed storage method and system of a block device. The method comprises defining the storage space of the block device as a logical volume and segmenting the logical volume into N logical blocks in a fixed size; actually storing the logical blocks in a plurality of physical storages, and associating the mapping relations of the logical blocks and a plurality of corresponding physical storage addresses through indexing. The system comprises a data access layer, an index server and a storage server, wherein the data access layer processes a read-write request of the block device on the basis of an iSCSI (Internet small computer system interface) protocol; after analyzing the protocol, the data access layer obtains the actual physical storage position of the logical block involved in the request from the index server; after receiving the request, the index server queries associated indexes to find a corresponding storage server and feeds information back to the data access layer; after receiving information fed back by the index server, the data access layer accesses the storage server to complete subsequent data reading and writing tasks.

Access to encrypted data on a removable computer media such as a computer tape is controlled via a uniquely-structured header on the medium having a symmetrical key wrapped by asymmetrical encryption plus a public key associated with the asymmetrical encryption. The data on the medium is encrypted using the symmetrical key. Prior to automated reading of the data by a reader, a challenge is issued to a host system including the public key and preferably a nonce value. The host responds by signing the nonce using a private key associated with the public key in order to prove it has rights to decrypt the data. The symmetrical key is unwrapped using the private key, and finally the unwrapped symmetrical key is used to decrypt the data on the medium, thereby allowing automated reading of the tape data without the need or risk of two administrators sharing a symmetrical key value.

A system, method and computer program product for searching at high speed for documents matching a dependency pattern from document data containing a large volume of text documents. The system includes a storage device for storing, index storage means for storing in the storage device occurrence information, receiving means for receiving information, reading means for reading from the index storage means, and searching means for comparing occurrence information. The method and computer program product include the steps of storing in the storage device, receiving information, reading from the storage device, comparing occurrence information, and searching. The computer program product includes instructions to execute the steps of storing each of the plurality of document data in the storage device, storing in the storage device occurrence information.

The invention discloses an adaptive data loading method for heterogeneous cluster storage, and belongs to the field of computer system storage. The method comprises the following specific steps: (1) basic load balance: at the initial establishment of a system, distributing data on each node of clusters according to the maximum load capacity of each node; (2) adaptive distributed incremental load balance: during running of the system, collecting the resource occupation situation of each node in real time, and adjusting a data distribution situation adaptively and dynamically; and (3) distributing data loads among the clusters in a balanced manner at the initial establishment of the system by considering the load size of data as identical and taking the performance of a heterogeneous server as a weight through a weight-based hash method. The method is suitable for processing heterogeneous data loads in a high-stress, high-concurrent-reading-writing, multi-user and heterogeneous large-scale distributed storage system, and adaptively adjusting the distribution of data among servers according to loads.

A dynamic compiler program product, method, and device for sequentially compiling a partial computer program in a computer. The program product causes the computer to function as: an execution status acquisition unit for acquiring respective values of one or more pieces of current execution status information; a determination unit for reading, from the shared pool, the second list of the conditions associated with an executable instruction stream generated by compiling a partial program that is the same as a partial program to be compiled and determining whether respective values of corresponding pieces of current execution status information satisfy the conditions; and a dynamic compilation unit for generating an executable instruction stream by compiling the partial program to be compiled on the condition that a result of determination made by the determination unit is negative.

The invention discloses a virtualization technology-based cloud computing security terminal, which comprises a virtualization technology-based cloud computing terminal key, which is characterized in that the hardware part of the cloud computing terminal key comprises a cloud computing security terminal; and a software part is also included and comprises an operation system arranged on a virtualization operation platform. A clean, sealed, comprehensive and dedicated operation system which can realize two-way data backup is provided for the cloud computing terminal. Virtualization is carried out on all tools and applications of the cloud computing operation on the dedicated human-computer interface provided by the dedicated operation system. Self explosion and self destruction are carried out on the cloud computing terminal in the cases of illegal access, reading, copying and interception of data and the system. the invention provides a cloud computing security terminal which is high in strength and applicable to the government, the financial department, the military department and the political science and law department. The terminal can serve as an intelligent Key to be connected onto other intelligent online electronic device for use, can also be equipped with a display device, an input device and an internet device to serve as a special cloud computer and has wide market application prospects.

The invention discloses a quantum data storage method and device, a quantum data reading method and device and computing equipment, and relates to the field of quantum computers. The quantum data storage method comprises the following steps: acting a first quantum neural network on an initial state to obtain an output quantum state; calculating a loss function based on a target quantum state and the quantum state output by the first quantum neural network, whereinthe dimension of the first quantum neural network is related to the dimension of the target quantum state, and the loss function corresponds to the distance between the target quantum state and the quantum state output by the first quantum neural network; adjusting parameters of the first quantum neural network according to the loss function so as to carry out iterative training on the first quantum neural network until a preset iterative stop condition is reached; and storing the trained parameters of the first quantum neuralnetwork in hardware equipment. According to the embodiment of the invention, storage of quantum data can be realized.

The invention discloses an NAND Flash fault tolerant system based on an FPGA (Field Programmable Gate Array). The NAND Flash fault tolerant system comprises a Flash bad block management subsystem, a USB (Universal Serial Bus) communication subsystem and an upper computer, wherein the Flash bad block management subsystem consists of the FPGA and a Flash array, and is used for detecting factory bad blocks by querying a flag bit of Flash in a spare area, querying return states of a reading operation, a writing operation and an erasing operation to detect lost bad blocks, and recording addresses of all the bad blocks. The Flash is partitioned into three logical areas, namely, a mapping good block area, a bad block area and an information storage area respectively, and an address mapping table is built and stored in the information storage area. The FPGA serves as a core controller, is communicated with the upper computer through the USB communication subsystem, and can receive a control instruction sent by the upper computer and upload data. A usage condition, including a space size of the good block area, a data storage status and the like of a current NAND Flash array can be queried through the upper computer; automatic detection can be performed to update the address mapping table; and stored data in the Flash array can be read, and data can be stored in the Flash array.

The invention relates to a file encryption system, comprising a safety folder, a file encryption program and a file encryption filter. The file encryption program generates a temporary file, namely an encrypted temporary file, corresponding to an opened file on a permanent storage medium of a computer in a form of a ciphertext when a user opens a currently browsed file in currently browsed safety folder by using a cursor through a human-computer interface of the file encryption program in a double-click manner; a new temporary file, namely an encrypted temporary file, which relates to file content of the selected opened file and is generated in the process that a file application program processes the opened file, also exists in the form of the ciphertext; the file encryption filter automatically carries out corresponding decryption and encryption treatment on the file content when the file application program carries out reading and writing operations on the encrypted temporary files. Thus, leakage of sensitive information due to the fact that the file content of the opened file exists on the permanent storage medium in a form of a cleartext is avoided.

The invention discloses a computer system information storing and reading method based on BIOS read-write internal memory, which is characterized by the following: initializing SMBUS controller operation; checking internal memory SPD whether be accessed; checking accuracy of relative read-write operation; writing the storing data into special zone of the internal memory SPD with the right operation; accessing internal memory SPD with SMBUS controller; reading the data; calculating; checking; comparing uniformity with the check bit data in the internal memory SPD; reading the data from the special zone in internal memory SPD with uniform data. This invention possesses high information safety, simple programming and convenient realization, which can bring very big convenient for further development of the computer.

The invention discloses a method for a reader to provide a service, as well as a reader and a terminal, belonging to the technical field of computers. The method comprises the steps of acquiring and displaying one or more insert information by the reader, wherein the insert information at least includes the name of an insert; determining the insert information which is selected from one or more insert information which is displayed by the user, and downloading a corresponding insert document according to the selected insert information; installing the insert according to the downloaded insert file, and calling the installed insert to provide the service. Through the method, the corresponding insert file is downloaded by the reader according to the insert information which is selected by the user, that is, the corresponding insert file is downloaded according to the demand of the user, so as to effectively control the size of an installation package of the reader and save the flow; in addition, the corresponding service is provided by calling the installed insert, to expand the service variety provided by the reader, therefore, the individual requirement of the user is met and the reading experience is enhanced.

The invention provides a Chinese text error correction system, a method, a device and a computer readable storage medium. The method comprises the steps of checking and correcting multiple errors occurring in a Chinese text through multiple methods of machine learning, correcting an unsmooth text into a smooth Chinese text suitable for reading, and using the Chinese text correcting characters which are similar in shape or identical in pronunciation and appear in sentences; and querying the position where the wrong character occurs through the confusion degree, selecting a correct modificationmode to replace the wrong character by utilizing a confusion set and a language model, and finally selecting and returning a correct Chinese language expression through a scoring method. According tothe method, multi-thread processing is adopted, input short texts are divided into two batches, two processes and one start, the speed is doubled, and under the concurrent condition, the processing efficiency of Chinese spelling check and Chinese spelling correction at the present stage is 500 QPS.

The present invention belongs to IC CAD field. It is characterized by that one step operation includes the following steps: computer initialization, creating GRG diagram, reading-in miring resource and circuit network table; using Prim algorithm to separate multi-ended wire net so as to obtain minimum generating tree under the Manhattan distance; pre-estimating wiring probability of every side; selecting wiring route and quickly wiring.

The invention belongs to the technical field of data exchange and discloses a cache control method and system, a storage medium, computer equipment and an application. The method comprises the steps:enabling one Block RAM to be controlled into a plurality of three-channel synchronous FIFOs for use, writing data frames into corresponding on-chip FIFOs when the data frames enter a queue, and writing the data into an off-chip DDR after the on-chip FIFOs are fully written; dividing the DDR storage space into L area blocks with continuous addresses; when data dequeues, moving k continuous data frames to the on-chip FIFO from the DDR while the data is read from the corresponding on-chip FIFO. According to the invention, the processing speed and the traffic burst resistance of the packet processing unit are improved, the DDR bandwidth utilization rate is increased, and the time delay of DDR data reading is reduced. According to the invention, the processing speed of the switching unit is accelerated, a relatively high DDR bandwidth utilization rate is realized, and the influence of absolute time delay brought by a DDR device on the processing time of the switching unit is reduced.

The invention discloses a data reading method, which comprises the steps of determining target data information according to a reading instruction when the reading instruction is received; judging whether corresponding target data exists in a preset cache or not according to the target data information; if yes, reading the target data from the preset cache, and feeding back the target data to a memory; if not, reading the target data from a disk according to the target data information, storing the target data to the preset cache, and feeding back the target data to the memory. According to the data reading method, the reading efficiency of the data information in the distributed data storage system is effectively improved. The invention further discloses a data reading device and equipment and a computer readable storage medium, which all have the above beneficial effects.