106results about How to "Reduce operating overhead" patented technology

A single operating system image is shared among multiple running virtualized containers such that each running container interacts with underlying shared files and resources in system storage. Each container running on a server are provided the same image, which remains consistent among the containers. Each image is named and versioned and each container is configured in a manner that defines which underlying image is used when the container is started. When updates to the image are made, a new image is be generated, and the containers are be switched to the new image by changing configuration properties associated with the container and restarting the container.

The invention discloses a method for extracting relations among named entities in Internet massive data. The method comprises the following steps: crawling network information and constructing a corpus; preprocessing texts; extracting keywords representing short document features; acquiring 'entity-relation modes' representing entity relations; annotating the relations, and finding new 'entity-relation pairs' from a large quantity of unstructured texts by using the modes; and evaluating the entity-relation pairs. The invention also discloses a system for implementing the method for extracting the relations among the named entities in Internet massive data. The system comprises a network information crawling module, an information preprocessing module, a feature word extraction module and an entity relation extraction and evaluation module. The method and the system have the advantages of greater convenience in extension of a relation lookup system, high running efficiency and the like.

The invention discloses a root-permission-free safe virtual mobile application program running environment system, method and application. A user opens a virtual running environment control program and selects a target mobile application program; a container process loads the target application program; a hook is arranged in the container process, and communication and interface calling of the target application program and an operation system is dynamically intercepted through the hook method; a proxy service agents target application program and operation system interaction according to a request for intercepting communication and interface calling; a safety module analyzes the target application program and operation system interaction, and dynamic permission control over the interaction is achieved through the proxy service; a log module records all system access time and contents, and bases are provided for further safety analysis. The system is a safe virtual environment which can directly run in an existing Android system and support and protect running of target mobile programs, the running cost is low, root permission does not need to be obtained, the existing Android system does not need to be modified, and compatibility and applicability are high.

The invention relates to a single sign-on method in a point to point mode. Being different from the existing single sign-on method based on a customer server mode, the method manages the single sign-on life cycle of a customer by using valid period of certificate of the customer, and the customer can sign on for a plurality of times with single certification. The method completes the cross-certification of an application system and an identity certification server; the shared encryption key of communication parties is initialized, and a safe channel between the customer and the application system is established. Through the the identity certification server and the cross-certification of the application system, any application system can independently carry out identity certification, thus weakening the status of a central identity certification server, avoiding the defect of single-point failure in traditional customer/ service mode and being characterized by low cost for system operation, high efficiency and good safety performance.

The invention discloses an embedded-type system for ensuring the completeness of a program, which comprises an embedded-type microprocessor, a storage device, a program completeness detection unit and a safety control unit wherein: the program completeness detection unit is used for detecting content of an appointed area of the storage device before the running, utilizing a standard hash function to calculate the hashed value of the area in the appointed area, for encrypting the hashed value and for transmitting the hashed value to the safety control unit; and the safety control unit is used for storing a correct hashed value of the content in the appointed area of the storage device, for comparing the correct hashed value with a running time hashed value which is transmitted by the completeness detection unit, and for judging whether the appointed area is altered. The invention also discloses a realization method of the embedded-type system for ensuring the completeness of the program, which comprises a configuration process and a running time detection process. The embedded-type system solves the safety problem that the code in the conventional system is easy to be altered, has the advantages of universality, low cost, less running expenditure and the like, and is particularly suitable for ensuring the completeness of the most basic trusted root of the embedded-type system.

The invention relates to a method of carrying out restoration and playback when a computer binary program operates. The system consists of a code filling part, a function interception part, a monitoring point setting part and an executive restoration part. The method is that the system starts the target binary program, the code filling part fills the monitoring point setting part and the executive restoration part into the process space of the target binary program; the action of inner cores such as a process, a file, a registration form, a network, etc. is monitored and recorded through the function interception part; monitoring points are arranged by the monitoring point setting part in the operating process of the program; after the executive restoration part gets a restoration command, the operating state of the target binary program is restored to the state corresponding to the position of the monitoring points by the executive restoration part. The invention is applicable for the analysis and fault-tolerance of an unknown binary program, and is applicable for improving the efficiency of analyzers and supporting the analysis and repair of errors in the operation of software.

The invention relates to a method for synchronously receiving and processing real-time data under a dual-network redundancy mechanism. According to the real-time data transmission requirements and characteristics of dual-network redundancy mechanism of an automatic system of a transformer substation, a network segment inter-zone time limit dynamic priority selection strategy, a network segment automatic handoff trigger active summoning strategy and an event list cache comparing strategy to realize screening and synchronization of the dual-network real-time uploaded data to guarantee the receiving and processing of the station level and ensure that the station level can timely acquire the effective data without losing, and effectively screen and separate the redundant, repeated and even abnormal uploaded data.

The invention discloses a control flow hiding method for remote computing. The method includes the following steps that original programs are divided into the open programs, the confidence programs and condition list group set files, the SGX function of the safe execution environment of a sixth-generation Intel processor is used for performing program branching statement condition judging in a confidence region with the hardware protection function, and therefore real hiding of program branching statement conditions is achieved.

The invention provides a neural network training method and device, an image classification method and device and a medium. The neural network training method comprises the steps that a source domainand a target domain are acquired, the source domain comprises a plurality of first samples, and the target domain comprises a plurality of second samples; respectively determining category weights ofvarious categories corresponding to the source domain and the target domain, and calculating the maximum mean value difference of soft weights of the source domain and the target domain based on the category weights; calculating a redundancy value for network compression based on the batch normalization layer coefficient of the neural network; and training the neural network based on the soft weight maximum mean difference and the redundant value.

The invention provides a predistortion parameter processing method and a device; wherein the method comprises the following steps: an initial signal matrix is built by utilizing data which carries out predistortion treatment and power amplification feedback data after periodic filtering processing begins; the data which carries out predistortion treatment is a reference signal, and the data for power feedback is an input signal; QR decomposition processing is carried out to the built initial signal matrix, and the predistortion parameters are determined by carrying out backward iteration operation to the matrix which carries out the QR decomposition; by adopting the method and the device, the arithmetic workload and the arithmetic complexity can be effectively reduced; in addition, the determined predistortion parameters begin to be stored from Nth sampling point symbol, so as to well save the expenses of the system operation.

The invention provides a vehicle shadow eliminating method based on multi-feature fusion. The vehicle shadow eliminating method comprises the following steps that (1), image sequences are read to obtain a current frame; (2), background modeling is carried out, a frame difference method is used for extracting vehicle foregrounds for a background frame and the current frame, and binarization processing and morphological processing are carried out on the foregrounds; (3), shadow assessment is carried out on a moving target area; (4), shadow detection is carried out on a vehicle foreground area, and detection is carried out on the basis of color features and edge features to obtain a plurality of candidate shadow areas; (5), the candidate shadow areas are fused to obtain a final shadow area; (6), in the vehicle foreground area, the shadow areas are eliminated, and real target vehicles are left. According to the vehicle shadow detecting algorithm based on multi-feature fusion, a shadow detecting method based on a single feature has limitation, and can not be applied to all traffic scenes, and therefore the vehicle shadow eliminating method with the universality is achieved by fusing a plurality of features.

The invention discloses a flow control type FIFO cache structure and method for uniformly configuring the data significant bits, and the structure comprises a first FIFO and a second FIFO, and the first FIFO and the second FIFO are jointly connected to a full-duplex mode configuration register which is used for selecting a full-duplex mode or a half-duplex mode. According to the invention, the data transmission efficiency with a host interface can be improved, the overhead of data integration through software is reduced, and the flow control mode of hardware management is designed, so that theoverflow phenomenon of FIFO is avoided.

The invention discloses a processing method and device of the lock holding of an application. The method comprises the following steps: obtaining time for an application to be detected to continuously hold a WAKELOCK; and when the time for continuously holding the WAKELOCK achieves a preset threshold value, outputting a prompt message, wherein the prompt message comprises a vision prompt message and a voice prompt message. The intelligent equipment can output the prompt message when the time for the application to be detected to continuously hold the WAKELOCK achieves the preset threshold value so as to bring convenience for users to know the consumption situation of equipment power consumption and reduce the misunderstanding of the user on the power consumption of the equipment.

The invention relates to the field of communication and discloses a method and a device for realizing a discontinuous reception (DRX) function, which are used for lowering operation cost of a system on the premise of not increasing equipment cost and not influencing cell capacity. The method comprises the following steps of: establishing DRX related timers for user equipment (UE) by using a base station when the UE accesses the system; and judging whether to schedule the UE or not only according to the states of the DRX related timers of the current UE to be scheduled in the current subframe before scheduling, instead of determining the states of the DRX related timers of all the UE. Therefore, by the method and the device, the operation cost of a network side can be effectively saved, resource waste of the system is avoided, the equipment cost of the network side cannot be increased, and the user capacity of cells cannot be influenced.

The invention discloses a random cooperative communication method based on a geometrical probability method. The SCCGP model in a cellular network is proposed, and the definition of end-to-end path loss and system capacity is given. The distance loss of two random relay channels is deduced, and the approximate cumulative distribution function of the random distance distribution is simplified. Thenthe capacity of random cooperative communication in SCCGP mechanism is deduced, and the probability density function of user capacity interruption is deduced. At the same time, the calculation methodof the minimum number of relay nodes required to satisfy certain connection requirements is proposed. The SCCGP model is extended to wireless ad hoc networks. By using one or more relay nodes, the cumulative distance distribution function of two random relay paths is derived, and the cumulative distribution function of user capacity in stochastic cooperative communication is obtained. In the SCCGP model proposed by the invention, the theoretical analysis model and the derivation of the system capacity distribution are all based on any number of relay paths, and the SCCGP model has universality.

An integral graph algorithm-based fabric flaw detection method is disclosed. An integral graph algorithm is used for rapidly extracting statistical characteristics of gradient energy, and the statistical characteristics of gradient energy are used for flaw detection; image learning operation on a flawless template is performed, statistics are run on characteristic distribution of the gradient energy, distribution peak values are extracted, threshold parameters are calculated in a self-adaptive manner and used for distinguishing subsequent flaws, gradient energy of a window where each pixel point of an image to be detected is positioned can be calculated via the integral graph algorithm, whether a current pixel point is a defect point can be determined based on the threshold parameters, and whether the current image is a flawed fabric can be determined after statistics are run on a total quantity of flaw points of the whole image. According to the method disclosed in the invention, based on principles of accelerated operation of integral graphs, the characteristic distribution of the gradient energy of the fabric image can be rapidly extracted, real time detection of fabric flaws can be realized, the peak values of the distribution are calculated, the self-adaptive threshold parameters for flaw determination are obtained, and accurate segmentation of fabric flaws can be realized. Via the method, real-time property and high accuracy can be ensured.

The invention relates to a supply chain access control system based on a public chain smart contract, which is used for access control in a block chain traceability scene. According to the system, anRBAC model is adopted, and the system comprises a system contract SC, role contracts RC and data contracts DC. The RBAC model comprises four types of agents which are associated with one another and an operation set OP, and the four types of agents are respectively a user agent u, a role agent r, a permission agent p and an object agent ob. The system contract SC is used for managing a user agentu, the role contracts RC are used for managing a role agent r and a plurality of permission agents p, and the data contracts DC are used for managing the object agent ob. The deployment transaction ofthe system contract SC serves as an entrance of the RBAC model and is firstly linked, and the multiple role contracts RC and the multiple data contracts DC are respectively called by the system contract SC. Compared with the prior art, the system has the advantage that data sharing convenience, data privacy security and the like are ensured at the same time.

The invention discloses an energy-saving transmission method oriented to mobile cloud computing and a corresponding middleware system. A cloud end hosting request management module is used for receiving and processing a mirror image hoisting request of a mobile end, a cloud end application mirror image data management module manages data updating and deleting of a mobile application mirror image, a cloud end-mobile end data transmission module achieves energy-saving data transmission between a cloud platform and the mobile end, a mobile end data storage and distribution module stores the data transmitted through the cloud end and distributes the data to different mobile applications, and a mobile end application request analysis module analyzes data requests of the mobile applications, and feeds back corresponding data from the storage module. The energy-saving transmission method oriented to mobile cloud computing and the corresponding middleware system can well lower high transmission energy consumption under a wireless network bandwidth unstable environment, improves the performance of a mobile end battery and improves user experience of a data pre-taking program at the same time.

The invention discloses a process list information monitoring system and method in a virtual environment. The process list information monitoring system is deployed in a privilege virtual machine, and is used for monitoring process list information of a plurality of client virtual machines. The process list information monitoring system comprises a user input module, an initialization module and a list information monitoring module, wherein according to the user input module, a user provides the ID and the type of an operating system of each monitored client virtual machine, the initialization module is used for storing the offset and the virtual address of a starting process structure, and the list information monitoring module is used for monitoring process list information of the client virtual machines.

A carrier frequency offset estimation method of baseband signal and device thereof, the carrier frequency offset estimation method comprises the steps of baseband signal acquisition, complex signal calculation, complex signal frequency spectrum shifting, complex signal resampling, useful spectrum line frequency point sequence number acquisition and carrier frequency offset estimation, etc. As thecomplex signal after spectrum shifting is resampled, the sampling rate of the system can be matched to a fixed value, so that FFT processing with a fixed number of points can be adopted to obtain a spectral sequence including useful spectral lines, so that the system can obtain the frequency point number corresponding to the useful spectral line without increasing the number of FFT points, but also simplifies the calculation process of obtaining the frequency point serial number. On the premise of guaranteeing the higher precision of carrier frequency offset estimation, it can speed up the processing speed, further reduce the calculation time and the running cost of the system, and finally help to improve the real-time performance of OQPSK signal in demodulation processing and carrier frequency offset estimation processing.

The invention discloses an Android application program protection method based on Dex2C and LLVM. The method comprises the following steps: decompressing an APK to obtain and analyze a Dex file, obtaining all necessary information, capable of recovering C codes, of each assembly instruction; selecting whether to carry out Dex2C conversion or not according to the evaluation model, and if the Dex2C conversion exceeds a threshold value, carrying out Dex2C conversion: carrying out conversion preprocessing operation, including searching a to-be-protected method, inserting assembly instruction statements, establishing an adjacency relation of instructions and the like, and selecting one of the three sets of conversion logics one by one according to the type of the assembly instruction to carry out conversion; achieving virtualization during compiling based on the LLVM, and if the threshold value is not exceeded, executing an LLVM compiling virtualization module directly; after the So file is generated through the framework, repackaging and signing are carried out, and generating the APK with the equivalent function. According to the invention, the protection methods of the Dex layer and the local layer are combined, on one hand, the execution efficiency of the APK can be improved, and on the other hand, the attack difficulty and cost of malicious attackers are greatly improved.

The invention provides a window sliding method and a window sliding device, and aims to solve the problems about window data stagnation or obvious data variation caused by instant moving. The window sliding window method includes: recording window sliding instruction information which includes a start position, a target position, start sliding time and total sliding time of window sliding; calculating time intervals of sliding stop between the start position and the target position; and according to the time intervals, at the time point of every sliding stop, moving a window from the slide position at the previous time point to the slide position to the current time point till the target position is reached according to the window sliding instruction information and the currently calculated slide position of the current time point. Several points are selected for stopping during the window sliding process, so that a human-eye recognizable and visual sliding effect can be generated on a screen when the window slides.