98results about How to "Improve contrast efficiency" patented technology

The invention discloses a content-defined chunking remote file real-time updating method. The invention aims at providing a file increment updating method with low network transmission expenditure for a distributive storage system, so that the distributive storage system can support the random writing of a file at low expenditure. According to the technical scheme, the method comprises the following steps: storing an original file fold file in a chunking manner, calculating an abstract for each data chunk by adopting a Hash algorithm, calculating one fingerprint for the beginning and the ending of each data chunk by adopting a rabin-fingerprinting algorithm, contrasting the chunking information of the original file fold by adopting a content-defined chunking data chunking way, chunking a novel file Fnew, calculating the abstract for each data chunk of Fnew by adopting the Hash algorithm, comparing the abstracts of the Fold data chunk and the abstract of the Fnew data chunk, finding out the varied data chunk, deleting the data chunk to be deleted from the Fold, and adding the data chunk to be updated into Fold. By adopting the method, the random writing of the file can be supported by the distributive storage system at low expenditure.

The invention discloses a vehicle-ground broadband access method based on a wireless mesh network technology, in which an access method for wireless mesh points consist of gateway nodes and a plurality of access points is specified in a layer 2 address-based layer 2.5 protocol between a layer 2 protocol and a layer 3 protocol. The method comprises the following steps: a, creating and updating a tree-based routing table for each wireless mesh point, which is used for recoding physical addresses for a parent node and a child node, and creating and updating a proxy table for each wireless mesh point, which comprises table entries of all vehicle-carried subnet point below the tree-based routing table of the wireless mesh point; b, data frame transmission, which realizes data format conversion, data transmission, data receiving and forwarding between a wireless mesh network and a vehicle-carried subnet as well as between wireless mesh gating nodes and a public network through the wireless mesh points; c, node switch, in which channels of the same frequency are adopted for access channels of all wireless mesh point for realizing seamless switching between the nodes. The method has the advantages of convenient networking, low cost, high-speed for data transmission, high reliability.

The invention relates to the field of computer data transmission and discloses a method for increasing the read-write speed of spatial big data files. The method for increasing the read-write speed of spatial big data files comprises a zero-copy step, a file buffering step and a digest checking step and particularly comprises the steps of when a read-write access is performed on a spatial big data file, obtaining a message digest of the spatial big data file through the digest checking step and comparing the message digest of the spatial big data file with a message digest of a file in a cache system; if the spatial big data file has the same copy in the cache system, updating cache hit information of the copy, updating the weight W of the copy, adjusting the link position of the copy in a sequential linked list according to the weight W of the updated copy, and transmitting the copy through the zero-copy step; if the spatial big data file does not have the same copy in the cache system, creating the copy of the spatial big data file in the cache system, updating the weight W of the copy, and transmitting the copy through the zero-copy step. The method for increasing the read-write speed of spatial big data files has the advantages of overcoming data read-write bottlenecks and being beneficial to increasing data read-write speed on the whole.

The invention relates to a webpage tamper-resistant method based on file-driven watermark comparison. The webpage tamper-resistant method comprises the following steps: 1, when a driving program installed on a server side monitors that a webpage is accessed, a kernel layer captures an IRP (I/O Request Package) request; 2, judging whether the conditions that a process of initiating the IRP request is an appointed Web container process, the IRP request is for a purpose of reading a file and the file read by the IRP request is a file needing to be protected by a user are simultaneously met or not, starting watermark comparison when the three conditions are met and turning to the next step, and normally releasing as long as one condition is not met; 3, calculating watermarks of the webpage file, comparing the calculated water marks with backup watermarks in a watermark library, if the watermark comparison result is consistent, normally releasing the IRP request, or else sending a request of recovering a tampered webpage file to a user layer and refusing the IRP request. The webpage tamper-resistant method can be used for effectively protecting a Web website from being tampered and improving the watermark comparison efficiency.

The invention relates to the technical field of data synchronization, and discloses an automatic data comparison method and device and electronic equipment. The method comprises the following steps: receiving a first database retrieval instruction and a second database retrieval instruction input by a user; wherein the first database retrieval instruction is used for extracting first comparison data from a first database, and the second database retrieval instruction is used for extracting second comparison data from a second database; extracting first comparison data from the first database according to the first database retrieval instruction; extracting second comparison data from the second database according to the second database retrieval instruction; analyzing difference information between the first comparison data and the second comparison data; and generating a comparison result according to the difference information obtained through analysis. Therefore, the retrieved comparison data can be automatically extracted from the database according to the database retrieval instruction input by the user, and the comparison result after comparison is generated, so that the manual workload is greatly reduced.

The invention discloses an underground water pollution traceability method based on characteristic pollutant source analysis, which relates to the technical field of underground water treatment and comprises the following steps of collecting related data of an area to be traced, establishing an enterprise characteristic pollutant library, determining a sampling scheme and analyzing a result. According to the method, the characteristic pollutant library is established for the enterprises in the region, and when the sampling analysis results are matched, the pollution source can be found more accurately, so that the delay of the pollution treatment work is avoided, the enterprises in the region are distributed on a plurality of straight lines respectively, then a bisection method is used for determining monitoring point positions of a plurality of enterprises distributed on a plurality of straight lines in sequence, so that not only can the labor intensity of sampling be reduced, but also the comparison efficiency can be effectively improved when a sampling analysis result is compared with a characteristic pollutant library, thereby improving the traceability efficiency.

The invention provides a sales data comparison method and system, and aims at carrying out comparison operation on generated sales data of enterprises with business transactions. The method comprises the following steps of: taking a first sales data set as benchmark data, and reading a first sales data record in the first sales data set in sequence; judging whether a second sales data record corresponding to the first sales data record exists or not; if the judging result is negative, marking the currently extracted first sales data record as straight sales data and storing the straight sale data; extracting first comparison data and second comparison data in the first sales data record and the second sales data, and furthermore converting the first comparison data and the second comparison data into a first character string and a second character string; comparing the first character string and the second character string, and outputting a comparison result; when the comparison result is that the first character string is consistent with the second character string, continuing above processing, and otherwise, forming a difference record and storing the difference record. The method and system provided by the invention have the beneficial effects of improving the comparison efficiency and greatly enhancing the comparison correctness.

The invention discloses a data security deduplication method based on an auto-encoder, relates to the field of information security and artificial intelligence, solves the problem of low efficiency ofan existing data deduplication method based on random message lock encryption, introduces abstract tags in efficiency, quickly screens out a very small subset from a tag library by means of the similarity of the tags, and executes bilinear mapping calculation on the subset, so that the frequency of bilinear mapping calculation is greatly reduced, and the label comparison efficiency is improved. According to the method, a self-encoding technology commonly used in image processing is introduced, the deduplication efficiency is improved by greatly reducing the number of times of label comparison, and the deduplication efficiency is improved by nearly 10 times compared with a data deduplication method based on random message lock encryption. According to the method, the non-monotonic functionis introduced, so that similar labels can be possibly generated even if data with large difference exists, namely, the similar labels can be generated by the similar data but cannot be established inturn, and the difficulty of deducing the data by an attacker according to the labels is further improved.

A kind of parallel experiment equipment, it is characterized in that, comprises: experiment chamber, and it is associated with rotating motor or vibrating motor, and experiment chamber is immersed in the heating pool that is filled with heat transfer medium heat conduction oil, or the inside of experiment chamber is changed into heating pool, A heater and a temperature controller are arranged in the heating pool; at least one experimental unit is sequentially connected in parallel and detachably fixed in the experimental cabin. The equipment of the present invention can be placed under a certain experimental condition as a whole, such as heating, etc., and can perform reaction experiments on multiple identical or different samples at one time under different or identical conditions, with high experimental efficiency, high contrast efficiency, and less required materials. It is suitable for a wide range of materials and low experiment cost. At the same time, the equipment of the present invention is simple to manufacture and requires less investment, and is suitable for material reaction experiments in industries such as chemical industry, hydrometallurgy, and pharmacy.

A method for achieving household appliance networking by automatically capturing a sound source comprises the following steps that step A1, presetting an audio database is preset, setting the audio database is set in a cloud server, and inputting sound emitted by a device permitting network access is input into the audio database to serve as a verification reference; step b1, collecting product audios collection: after the network access equipment is powered on, requiringa specific sounds which is requested to be allowed to be accessed is sent out, and enabling a gateway or an intelligent terminal terminal to collects the sounds and uploads the collected audios to a cloud server; and step C1, proofreading an acquisition result, inputting the sounds acquired in the step B1 into an audio processing module, extracting the characteristics of the audio by the audio processing module, and comparing the extracted characteristics with characteristic key values of an audio database. The invention aims to provide thea method for achieving realizing household appliance networking by automatically capturing a sound source. According to the scheme, household appliance networking is carried outby capturing sound.

The invention discloses an experimental equipment device for researching stachyose and a using method thereof. The device comprises a device base table, device supporting plates are arranged on the two sides of the device base table correspondingly, each device supporting plate is provided with a first window, a device top plate is arranged at the top ends of the device supporting plates, a frontdevice shell and a rear device shell are arranged between the device supporting plates, the front device shell is provided with a sliding door, a first opening is further formed in one side of the device base table, a detection platform is also arranged on the device base station, a second window is formed in the rear device shell, the detection platform is provided with a first fixing groove, a second fixing groove and a third fixing groove, a second open hole is further formed in the detection platform, the second open hole is communicated with the first open hole, a detection machine is arranged in the first fixing groove, a liquid preparation disc is arranged in the second fixing groove, a liquid mixing box is arranged in the third fixing groove, a ventilation device is arranged on thedevice shell, a movable gantry is further arranged between the device supporting plates, and a liquid mixing device is further arranged on the device supporting plates. The device is convenient to operate and can be used for simultaneously treating stachyose assays under different conditions.

The invention discloses a service information processing method, device and system, a storage medium and a computer device, relates to the technical field of information, and mainly aims to improve the service comparison efficiency. The method comprises: when a service specific page display instruction is received, sending a service specific page obtaining request to a server; the server being used for searching a service specific page corresponding to the service according to the identification information of the service contained in the service specific page acquisition request; analyzing service title information corresponding to the service from the service specific page, and determining service recommendation information of the associated service corresponding to the service accordingto the service title information corresponding to the service and a preset associated service matching library; and receiving and displaying the service specific page corresponding to the service fedback by the server and the service recommendation information of the associated service corresponding to the service. The method is suitable for processing the service information.

One or more embodiments of the invention provide a duplicate checking method and device for insurance claim settlement image data. Firstly, in combination with first attribute information of field image data of to-be-insured claim settlement, a plurality of candidate historical image data with relatively high relevancy are screened out from the claimed historical image data; a preset image comparison mode is used to compare the second attribute information of the field image data with the second attribute information of the candidate historical image dataso as to obtain a corresponding claim settlement image duplicate checking result; whether the insurance claim settlement application to be processed has an insurance fraud phenomenon or not can be quickly identified by combining a claim settlement image duplicate checking result; the insurance fraud phenomenon can be timely intercepted, unnecessary claim settlement loss is reduced, through employing a mode of reducing the duplicate checking range, numerous historical image data with relatively small relevancy is filtered, claim settlement image comparison efficiency is improved, claim settlement image duplicate checking efficiencyis further improved, and an insurance fraud phenomenon identification speed is further improved.

The invention discloses a method for recognizing human face. The method includes the following steps: 1, processing the face image, wherein a front face image is collected, and the face image is optimized and cut out, the image height is the distance between the brow center of the human face and the chin, and the width is the distance between the ears. At this time, the image height is set to x1,and the image width is set to y1. The obtained image is registered and backed up. As the image is adjusted in the transverse length and the longitudinal length according to the shooting angle, the image is then mirrored, thereby converting the side face image into a symmetrical whole face image, therefore, the invention can be compared with two symmetrical images formed by the left and right facesof the resident image in the subsequent picture recognition, and the image to be recognized can be processed and recognized effectively under the condition that all the face information cannot be collected, so that the recognition accuracy is high.

The invention provides a granite stratum division comparison method. The method comprises the following steps: 1, preparing logging curve data; 2, analyzing logging curve maximum entropy spectrum; 3, obtaining a data difference curve; 4, converting the data difference curve into a frequency spectrum curve; 5, performing filtering processing on a reconstructed frequency spectrum curve; 6, determining abnormal points; 7, numbering the abnormal points; and 8, performing stratum division and comparison: connecting key similar difference points of each well on a backbone profile according to a sequence, i.e., finishing granite stratum division comparison. According to the invention, the abnormal points in each well are analyzed and compared, compared to a conventional similar stratum comparison method, for a granite stratum which is small in lithologic difference, small in vertical change and not obvious in cyclicity, the operability is higher, and compared to a conventional stratum comparison method, the practicality is higher. Since a maximum entropy spectrum analysis method is employed, the stratum comparison quantitative degree is enhanced, the operability is higher, and the stratum comparison efficiency is greatly enhanced.

The invention discloses a duplicated data delete method. Data comparison scale is limited in each storing device, the data comparison scale is reduced, meanwhile, concurrence comparison of each storing device can be achieved, the comparison efficiency is increased, and dependence on host resources can be reduced. Each storing device triggers corresponding data comparison operation according to business pressure or host requirements, and the duplicated data delete method can be used during normal business processes without limit to business scenes such as special backups.

The invention relates to a mobile face recognition method and system, a computer and a storage medium. The method comprises the following steps: shooting by wearable image shooting equipment to obtaina moving image; analyzing the moving image to obtain a face image in the moving image; performing face comparison on the face image and a pre-stored person image in a local storage device, and detecting whether the pre-stored person image matched with the face image exists in the local storage device or not; and when it is detected that the pre-stored person image matched with the face image exists in the local storage device, sending an alarm signal. According to the invention, the portable wearable image shooting equipment shoots and obtains the moving image, analyzes the moving image to obtain the human face image, compares the human face image with the personnel image pre-stored in the local storage device, detects whether the personnel in the moving image is the key personnel, and can shoot the suspected key personnel more conveniently and flexibly from multiple angles, so the contrast efficiency is effectively improved.

The invention provides a data comparison method and device, and can be used in the financial field or other fields. The method comprises the following steps: acquiring and analyzing library table comparison information from a first message queue by utilizing a multi-thread real-time monitoring mode to generate a first database query statement, querying a first database by utilizing the first database query statement to obtain a first query result, and sending the library table comparison information to a second message queue; obtaining and analyzing the library-table comparison information from the second message queue to generate a second database query statement, querying a second database by using the second database query statement, comparing the first query result to obtain a second query result, and sending the library-table comparison information to a third message queue; and obtaining library table comparison information from the third message queue, analyzing the library table comparison information, and generating a data comparison result according to the first query result and the second query result. According to the method, assembly line type data comparison is realized, the data comparison efficiency is improved, library table comparison information is configured, and the development cost is reduced.

The invention provides an identity recognition device and a method thereof. The method comprises: obtaining at least one to-be-recognized image; performing feature extraction on at least one of the to-be-recognized images to obtain a to-be-recognized feature vector; based on the to-be-recognized feature vector, screening from a plurality of candidate objects in a database to obtain at least one candidate object matched with the to-be-recognized object; processing at least one of the to-be-recognized images to obtain at least one to-be-recognized feature image; and based on the at least one to-be-recognized feature image, determining a target object matched with the to-be-recognized object from the at least one candidate object. According to the method disclosed by the invention, the preliminary screening based on the to-be-identified feature vector and the matching based on the feature image are combined, so that the reliability of the matching result is improved while the matching efficiency is improved.

The invention belongs to the field of data processing, is applied to the fields of network disk synchronous data, multi-person collaborative documents, cloud data storage and the like, and relates to a large file difference comparison method and device, computer equipment and a storage medium.The method comprises the following steps: acquiring a file, and extracting feature data of the file; generating a data structure from the feature data, and storing the data structure in a database, the data structure comprising a plurality of fields; carrying out difference comparison on different files according to the values of the multiple fields; and judging a file difference comparison result. In addition, the invention also relates to a block chain technology, and large file difference data of the user can be stored in a block chain. Difference comparison is carried out by adopting point values of the arranged matrix blocks, and secondary difference comparison is carried out by using hash values of the arranged matrix blocks, so that the range is expanded from individual to local, the misjudgment rate is reduced, and the difference judgment consistency is improved; memory resources are reduced, difference comparison efficiency is high, and time and space can be saved.