100results about How to "Enhanced confrontation ability" patented technology

The invention relates to a resource acquiring method and apparatus and a resource processing method, apparatus and system. The resource acquiring method comprises: displaying an operation page for acquiring a resource; detecting a touch operation acting on the operation page; recording an operation frequency of the detected touch operation; sending a resource acquiring request which carries a user identifier of a current login user and the operation frequency to a server, and making the server adjust a randomly selected probability according to the operation frequency to randomly acquire a decision result whether resources are allocated for the user identifier; and receiving a resource acquiring result fed back after the server performs a corresponding operation according to the decision result. According to the resource acquiring method and apparatus provided by the invention, the capability of resistance to plug-in users is improved.

The invention provides a countercheck method for automatically identifying a speaker aiming to voice deception, which is a voice anti-spoofing technology based on a method combining various features and a plurality of sub-systems. According to the invention, the serial features of the posterior probability of a phoneme in the phonological level and the MFCC features of voice level or MFDCC features of phase level are combined, thus the performance of the system is significantly enhanced. By combining the provided i-vector sub-system and OpenSMILE (open Speech and Music Interpretation by Large Space Extraction criterion containing voice and rhythmic information, the final presentation of the system is further enhanced. To a back-end model, the development datum are used; and under the situation of knowing deceptive attacks, a two-level support vector machine has better performance compared with one-level cosine similarity or PLDA evaluations, while the one-level evaluation approach has better robustness under the situation without seeing the test datum and knowing the deceptive conditions.

The present invention relates to an interconnection network game service correlation technique, and discloses an interconnection network game competition method and its service system. It can make interconnection game competition more have fairness, more can reflect real level of players and can effectively prevent players from adopting cheat act. Said invention also provides its game method and concrete competition rule, and also provides the composition portions of said game service system.

The invention provides a smart jamming noise signal design method based on velocity pull-off and relates to the smart jamming noise signal design method. The smart jamming noise signal design method based on the velocity pull-off is put forward to solve the problem that false target track is easy to be cancelled by radar anti-interference when uncorrelated, so that the effect of suppression jamming cannot be achieved, and the effect of anti-jamming measures, such as echo sidelobe cancellation, is not good enough. The method is realized through the following steps: 1) calculating time delay tau; 2) calculating Doppler frequency shift fd obtained after an electromagnetic signal is reflected back to a radar antenna through secondary scattering of a target; 3) calculating the amplitude value At of a target echo signal at the time t after the electromagnetic signal is reflected back to the radar antenna through secondary scattering of the target; 4) calculating the target echo signal sr(t); and 5) increasing offset of the Doppler frequency shift fd. The method is applied to the smart jamming noise signal design field.

The invention belongs to the technical field of artificial intelligence security, and discloses a high-strength adversarial patch sample generation method and application, and the method comprises thesteps: firstly calculating an area, which greatly affects a CNNs classification decision, in an image through Grad-CAM, and using the area as a feature contribution area (CFRs) of the image; and positioning the region by using a mask mechanism so that scrambling can be completed in the determined feature contribution area. According to the method, a loss function is redefined to serve as an optimized objective function, then a stochastic gradient descent optimization algorithm is utilized, hyper-parameters are introduced to search for efficient disturbance, and then the adversarial sample based on CFRs can be obtained. According to the method, good balance between countermeasure strength and imperceptibility is realized by only scrambling in a feature contribution area and limiting a disturbance range within a micro range which is difficult to perceive by human eyes, and experimental verification is performed on CIFAR-10 and ILSVRC2012 data sets. The adversarial sample generated by the method is applied to adversarial training, and the deep learning defense capability can be effectively improved.

The invention provides an execution method for registry operation, which comprises the steps that a registry operation request is acquired, wherein the request comprises a caller input parameter; kernel executing logics of a registry are set according to the caller input parameter, wherein the kernel executing logics include a tampering point detecting and restoring logic and a registry function calling logic; the tampering point detecting and restoring logic is executed, more specifically, a preset kernel executing flow tampering point is detected, and the original value of the kernel executing flow tampering point is restored when the original value of the kernel executing flow tampering point is changed; and a corresponding registry function is called by the registry function calling logic. According to the method and the device disclosed by the invention, the counterforce of defending a driving stage malicious program can be enhanced, and potential possibility of incompatibility of security software caused by registry operation interference is avoided.

The invention relates to a resource acquisition method and device, a resource sharing method and device, a resource processing method and device, a storage medium and equipment. The resource acquisition method comprises the following steps: receiving a resource sharing message in a social session; in response to the resource sharing message, controlling a plurality of expression images to sequentially pass through a designated area in a session interface; wherein the session interface corresponds to the social session; obtaining a face image correspondingly collected when each expression imagepasses through the session interface; determining a matching result between each expression image and a corresponding collected face image; determining expression matching cumulative scores accordingto matching results corresponding to the plurality of expression images; and obtaining resources from the resources corresponding to the resource sharing message according to the share matched with the expression matching accumulation score. According to the scheme provided by the invention, the countermeasure capability of the external user is greatly improved.

The invention provides a tactical communication network countermeasure method based on signal recognition and network reconnaissance. The method comprises the steps of tactical communication network comprehensive situation awareness, tactical communication target attribute recognition based on time-frequency-space characteristics, detection of the specific tactical communication target based on synchronization characteristics, time-division multi-target jamming based on network key information and tactical communication network countermeasure based on synchronization decoy. The core of the method is to recognize the target attributes, locate the network node, analyze the traffic type and perform statistics of the traffic volume by using the signal time-frequency spatial domain characteristic and network characteristic information so as to realize communication signal recognition and network comprehensive situation analysis under the complex battlefield electromagnetic environment. Time-sharing jamming is performed by using the sparsity of the network key information for different target networks to improve the multi-target jamming capacity, and synchronization decoy jamming is performed by using the vulnerability of the synchronization mechanism to effectively counter the ad hoc encrypted communication network characterized by multi-hop routing and forwarding and high-speed frequency hopping.

The invention discloses a traditional Chinese medicine composition for relieving itching and diminishing swelling after mosquito bites and a preparation method thereof. The composition is prepared from the following medicinal raw materials in parts by weight: 30-80 parts of astragalus membranaceus, 1-10 parts of calculus bovis, 20-60 parts of scutellariae barbatae, 30-60 parts of licorice roots, 30-70 parts of fructus kochiae, 20-60 parts of sophora flavescens, 30-60 parts of cinnamon and 20-60 parts of clove. The traditional Chinese medicine composition is scientific in prescription; and traditional Chinese medicine preparations and floral water prepared from the traditional Chinese medicine composition do not have toxic or side effect, are prepared by using purely natural formulae, and have strong pertinence. The floral water and other preparations prepared from the traditional Chinese medicine composition have a total effective rate of 95 percent, can be used for eliminating itching and heat-pain symptoms caused by mosquito bites after being applied for 5 minutes on average and eliminating swelling after 30 minutes, have reliable and rapid curative effect, can be used by adults and children, and are safe and reliable.

The invention discloses a laser shoot vehicle, and a countermeasure system and a countermeasure method based on the vehicle, which belongs to the field of automatic control fire countermeasure robots, and aims at solving the problems of single functions and poor countermeasure in the existing intelligent vehicle. The laser shoot vehicle comprises a vehicle body, a shoot device, a walking device, a rotation device, a sensing device, a sound-light alarming device and a control device, wherein the outer wall of the front side of the vehicle body is distributed with sensors for detecting obstacles and other laser shoot vehicles in front of the vehicle body; the top part of the vehicle body is provided with a shot area and a light sensor; signals acquired by the sensing device are sent to the control device; and the control device controls the shoot device, the walking device, the rotation device and the sound-light alarming device. The laser shoot vehicle countermeasure method comprises steps: a control instruction is inputted manually to drive the laser shoot vehicle to perform moving, rotation and shooting actions or an instruction is generated through automatic operation to complete all actions. A network management module can be used for playing a role of judgment. The laser shoot vehicle, the system and the method are used in intelligent vehicle countermeasure.

The invention discloses a virtual object display method and a virtual object display device in the virtual environment, a terminal and a storage medium. The method comprises the following steps: at the initial position selecting stage during game playing, displaying an initial position selecting interface, wherein the initial position selecting interface comprises m initial positions selected frompreset n initial positions; receiving a selecting instruction corresponding to a target selecting position in the m initial positions, wherein the selecting instruction is used for indicating that the initial position of a first virtual object participating in game playing is determined as the target initial position; and displaying the virtual environment, and displaying the first virtual objectat the target initial position of the virtual environment. All the virtual objects participating in game playing only can start game playing at initial positions with the limited quantity, at the earlier stage of game playing, the distribution of the virtual objects is more concentrated, so that the game playing time can be shortened, and then the occupying demand for processing resources of theterminal and the server by game playing is reduced.

The invention provides a man-machine adversarial action prediction method and device, electronic equipment and a storage medium, and the method comprises the steps: constructing an adversarial space based on man-machine adversarial environment information, and carrying out the modeling to obtain an adversarial space model; analyzing and reasoning the adversarial space model to construct a situation cognition model; performing macroscopic decision based on the situation cognition model, generating a macroscopic strategy plan, and decomposing the macroscopic strategy plan into microoperation behaviors of each action unit; and on the basis of the micro-operation behavior of each action unit and the situation cognition model, performing target selection, path generation, time planning and underlying action generation on each action unit to obtain an action sequence of each action unit. According to the invention, the man-machine adversarial capability of the intelligent agent is improved.

The invention provides a file unlocking method and device. The method comprises the following steps of: judging whether an object file has the condition of handle occupation; if so, traversing a handle table of an operating system to obtain a file handle corresponding to the object file and obtain the process to which the file handle belongs; and switching to the process and initiating close operation of the object file handle based on the process. The file unlocking and shredding mechanism provided by the invention not only is safe and reliable and has high success rate but also can distinguish and counter the self-protection behaviors of the files with malicious programs in the complex client environments, thus enhancing the counterforce of attacking and defending the drive stage malicious programs.

The invention provides a file unlocking method and a file unlocking device. The method includes: attempting to execute a delete operation or a write operation aiming at a target file; if the delete or write operation cannot be executed for the target file, obtaining the attribute of the target file; and if the attribute of the target file is read-only, invoking a user-defined application program interface for file attribute change to remove the read-only attribute of the target file. A file unlocking and shredding mechanism is safe, reliable and high in success rate and is capable of recognizing and confronting file self-protection behaviors of malicious programs in the complex client-side environment, and accordingly the capability of the mechanism in confronting attack and defense of the drive-level malicious programs is enhanced.

The invention discloses an adversarial sample generation method and system, a storage medium and a device. The method comprises the following steps: training a data set to obtain an initial model; attacking the initial model by using an attack algorithm, and calculating to obtain an initial adversarial sample; putting the initial adversarial sample into a first DCGAN network for training to obtaina first generator corresponding to the initial model, and generating an unprotected attack sample by the first generator; performing AND operation on the initial adversarial sample and the data set to obtain a protection model with protection adversarial capability; attacking the protection model by using an attack algorithm, and calculating to obtain a protection confrontation sample; and putting the protection confrontation sample into a second DCGAN network for training to obtain a second generator corresponding to the protection model, and generating a protection attack sample by the second generator. According to whether an original model has protection or not, a new confrontation sample generation method is provided by utilizing the GAN, and malicious samples with new features can be produced in batches.

The invention provides a motion determination model training method and device for a virtual object, equipment and a medium, and belongs to the technical field of artificial intelligence. The method comprises the steps of determining a computing environment state of a virtual scene after a target duration based on a first environment state of the virtual scene; determining internal reward information according to the calculation environment state and the actual environment state of the first environment state at the next moment; adjusting parameters of the current action determination model according to the internal reward information; and in response to the fact that the current action determination model meets the first target condition, determining the current action determination modelas a trained motion determination model. According to the scheme, the motion output by the motion determination model can correspond to different game strategies, and the confrontation capacity and robustness of the virtual object on the game strategies are improved.

The invention relates to a method and device for obtaining a log-likelihood ratio, and aims to obtain log-likelihood values of various bits of a data sub-carrier in an OFDM modulation signal frame. The method comprises the following steps: obtaining an interference variance of the data sub-carrier; and obtaining the log-likelihood values of various bits of the data sub-carrier according to the interference variance of the data sub-carrier, a channel estimation coefficient corresponding to the data sub-carrier and a QAM symbol mapped by the data sub-carrier. By means of the method, same-adjacent-frequency interference signals can be effectively resistant when an OFDM signal is received; and thus, the receiving performance of a receiver can be improved.

A method and system for unlocking and deleting a file or a folder. The method for unlocking the file or the folder comprises: receiving an unlock request of a file or a folder, wherein the unlock request includes an input parameter; verifying whether the input parameter complies with a preset condition; if the input parameter complies with the preset condition, correcting a deformed path format of the file or the folder and/or the special file name of the file or the special folder name of the folder according to a preset rule; determining whether restrictive setting of the corrected file or folder is present; and if yes, cleaning the restrictive setting of the file or the folder. The embodiments of the present invention relieves layer by layer the protections arranged by files infected with a virus by employing a plurality of means such as removing the read-only lock, removing the routine lock, adding the authority and closing the handle, thereby increasing the confrontation capacity of a security software against a malignant program.

Lightweight yokes are provided. According to some embodiments, the basic overall appearance of the yoke may be maintained, but the actual material of which it is constructed is changed. According to other embodiments, the yoke is provided with an improved lightweight construction, and, yet other embodiments the yoke may be provided with an improved construction and formed from a preferred material. Yokes may be constructed from cast austempered ductile iron; whereas cast iron has a density, 0.26 lbs/in̂3, which is approximately 8% less than steel, 0.283 lbs/in̂3, thereby allowing for a reduction in weight over steel. A suitable austempering process is used to produce the austempered metal yoke. Yokes have improved configurations which may require less metal to produce the yoke. Both, the lightweight material and improvements in configuration of the yoke structure may combine to provide a lighter weight yoke.

The invention discloses a method and system for detecting a Windows malicious program on a KVM virtualization platform. The method comprises: adopting a Libvmi technology to scan a process linked listand a kernel module linked list in a Windows virtual machine memory, and obtaining any program in the Windows virtual machine process linked list and the kernel module linked list and a disk file path corresponding to a Windows virtual machine process; performing digital signature verification on any program on the KVM host machine; when the digital signature of any program is qualified, judgingwhether the memory image of the Windows virtual machine process is consistent with the disk file content corresponding to the Windows virtual machine process or not on the KVM host machine; and if so,determining that any program is a legal program, otherwise, determining that the program is a malicious program. The system comprises a scanning module, a digital signature verification module and adisk file comparison module. According to the method and the device, the resistance to the malicious programs and the accuracy of malicious program detection can be greatly improved, so that the safety and stability of a virtual machine system are improved.

The invention provides a method and device for establishing a malicious IP address threat intelligence library and preventing a malicious attack, and the method comprises the steps: screening out IP address information of which the page view meets a preset condition in a continuous first time period according to IP address information accessed by an enterprise business system; according to the banning/unbanning information of the IP addresses, screening out the IP addresses of which the difference between the banning moment of the same IP address and the banning moment of the next time is smaller than a preset difference; according to the attack logs of the network attack protection devices, screening out IP addresses contained in the attack logs of all the network attack protection devices in a continuous second time period; according to the access log information of the enterprise e-commerce platform and the banning/unbanning information of the IP addresses, screening out the IP addresses of which the access amount exceeds a predetermined amount in a continuous third time period and which have banning history; and establishing a malicious IP address threat intelligence library according to the screened IP addresses. According to the invention, passivity can be changed into active, the network attack resisting capability of enterprises is improved, and the risk is reduced.