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Method and system for detecting distributed asset information

The invention discloses a method and system for detecting distributed asset information. The system comprises a plurality of network asset information collecting subsystems distributedly deployed in different regions and a distributed task scheduling and data processing subsystem connecting the plurality of network asset information collecting subsystems, wherein based on a distributed architecture, the distributed task scheduling and data processing subsystem decomposes tasks, and distributes the decomposed tasks to appropriate resources through task scheduling, so as to implement task distribution and processing for a plurality of nodes, implement distributed execution of tasks, and distributedly perform the asset information detection and perception, and the storage and management of data are deposited together. The method and system for detecting distributed asset information can detect active hosts of a plurality of specific network areas in a timely and reliable manner, and collect asset information, which provides basic functions for asset change perception, and facilitates rapid and accurate discovery to timely repair security vulnerabilities of information system.
Owner:广东省信息安全测评中心

Method and device for fusing infrared and visible light images based on spectral wavelet transformation

The invention discloses a method and a device for fusing infrared and visible light images based on spectral wavelet transformation. The method comprises the steps of performing spectral wavelet decomposition on an infrared image and a visible light image according to four decomposition scales to obtain a low-frequency sub-band coefficient and high-frequency sub-band coefficients, fusing the obtained low-frequency sub-band coefficient and the high-frequency sub-band coefficients at different decomposition scales according to a fusion rule, and performing spectral wavelet transformation on the fused low-frequency sub-band coefficient and high-frequency sub-band coefficients to obtain a fused image. The invention also discloses a device for fusing infrared and visible light images based on spectral wavelet transformation. According to the method and the device for fusing infrared and visible light images based on spectral wavelet transformation, the images of irregular images can be expressed better; a weight of image fusion is obtained by virtue of bilateral filtering so that the definition, the contrast ratio, the amount of information and the like of the fused image can be effectively improved, and consequently, a better-fused image can be obtained.
Owner:SHANGHAI RONGJUN TECH

Entity relationship joint extraction method and system

The invention discloses an entity relationship joint extraction method. The method comprises the steps of performing data preprocessing on an input sentence; mapping each word in the input sentence into a corresponding word vector; inputting the obtained word vectors into an entity relationship joint extraction model based on a long and short-term memory network and a graph convolutional neural network for training; and adopting the trained LSTM-GCN model to carry out entity extraction and relationship extraction. According to the method, the sequence information and the region information ofthe input sentence can be captured at the same time through the LSTM and the GCN, each word can be better expressed, the performance of entity extraction and relationship extraction is improved, and the method has certain practicability.
Owner:SOUTH CHINA UNIV OF TECH

Collaborative filtering-based video program recommendation system and recommendation method

The invention provides a collaborative filtering-based video program recommendation system, which comprises a user model creation module, a user similarity calculation module, a nearest neighbor set generation module, a columns score generation module and a recommendation module. The recommendation method comprises the steps of setting a reward item and increasing the effect of a dark-horse column on the user similarity. Based on the above recommendation method, the computational complexity is reduced by utilizing a user similarity matrix M. the rating of the above recommendation method is realized based on the weighted average of the nearest-neighbor similarity. In this way, the user preference is fully analyzed and the potential interest points of users can be found out.
Owner:SHANDONG UNIV

Method and equipment for building indexes and matching inquiry input information of user

The invention provides a method and equipment for building indexes and matching inquiry input information of a user. According to text information, structural information is determined and subject words are extracted; according to a subject corresponding to the subject words, label words corresponding to the subject are determined; and the indexes are built form the subject words and the label words. Moreover, the subject words and the label words are obtained through analysis of the inquiry input information input by the user, matching inquiry is carried out in the built indexes, and candidate text information is obtained; according to the semantic matching degree of the candidate text information and the inquiry input information, and target text information matched with the inquiry input information is determined. Compared with the prior art, on the basis of encyclopedia or other network resource knowledge, extracting of subjects and titles is carried out, effective description of resource knowledge content is formed, and accordingly semantic searching of the resource knowledge is more efficient, the searching requirements of the user for complicated descriptions which the user cannot accurately express by means of key words are met, and use experience of the user is improved.
Owner:BEIJING BAIDU NETCOM SCI & TECH CO LTD

Contourlet transformation based seismic multi-attribute fusion method

The invention belongs to the application fields of seismic data oil gas predication, oil gas resource exploration and signal processing, and provides a Contourlet transformation based seismic multi-attribute fusion method. Effectiveness of description attribute information is improved by means of expression of multiresolution, multidirection, localization and anisotropy of signals to make full use of existing various attribute information, accuracy in seismic target calibration is improved, and accordingly reservoir predication and fluid recognition can be completed more accurately.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Document semantic representation method based on thematic word class similarities and text classification method and device

The invention relates to a document semantic representation method based on thematic word class similarities and a text classification method and device. The document semantic representation method based on thematic word class similarities comprises the steps that (1) a word vector model is used to train a corpus, and word vectors are obtained; (2) clustering is performed on the word vectors in asemantic space; and (3) a WMD algorithm is used to calculate the distance between a to-be-represented document and each category obtained through clustering, and the obtained distance is used as semantic representation of the to-be-represented document. Then document classification is realized by calculating the similarities among semantic representation vectors of the document. Through the document semantic representation method, according to semantic information, word frequency and other information of texts, transfer cost between text words and clustering sets is calculated through the WMDmodel, each text is represented with one low-dimensional dense vector containing the semantic information, text information can be better represented, the classification task is high in accuracy, andthe method can be applied to natural language processing tasks such as information retrieval and text classification.
Owner:INST OF INFORMATION ENG CAS

Three-dimensional monitoring system oriented to cloud native application

The invention discloses a three-dimensional monitoring system oriented to a cloud native application. The system comprises a data acquisition layer, the data acquisition layer comprises a front end monitor for acquiring and uploading front end monitoring data, an application monitor for acquiring application monitoring data and an infrastructure monitor for acquiring infrastructure monitoring data, wherein the front end monitoring data and the application monitoring data are associated through a chain ID uniquely identifying a user single request call chain, the chain ID is generated by the application monitor in the application firstly called in the call chain, and the chain ID is added in a message in the call chain to be transmitted to each node in the call chain; and the application monitoring data and the infrastructure monitoring data are associated through host information and process information. The system provided by the invention can break through the front end, the application and the infrastructure, thus, all the monitoring data can be connected in series, which is convenient for follow-up data analysis and presentation, and the whole monitoring can cover requirementsof two layers of operation maintenance and operation of the system.
Owner:SHENZHEN COMTOP INFORMATION TECH

Modeling and optimization method for vehicle routing problem with time windows based on constrained programming

ActiveCN109034481AThe model expresses clearlyEasy to adjust and expandInternal combustion piston enginesForecastingTime windowsMathematical model
The invention discloses a vehicle routing problem modeling and optimization method with time window based on constraint programming, belonging to the field of intelligent transportation. The method comprises: 1. establishing the basic mathematical model according to the description of the routing problem of a vehicle; 2. based on the mathematical model of vehicle routing problem, establishing thebasic constrained programming model of vehicle routing problem with time windows. 3, adding other constraint conditions reasonably to optimize the model and speed up the solution of the model; 4, importing a benchmark test package of the verification and test model, and reading the customer point information; 5, a CPLEX optimizer being used to solve the constrained programming model of vehicle routing problem with time windows. The modeling and optimization method provided by the invention is convenient to describe and express the complex constraint conditions of the problem, and the model iseasy to be expanded. Heuristic constraints are reasonably added, which greatly reduce the search space and accelerate the solution. The exact global optimal solution can be obtained.
Owner:BEIHANG UNIV

Image classification method through fast and locality-constrained low-rank coding process

ActiveCN105184298AShow wellEffective Classification AccuracyCharacter and pattern recognitionDictionary learningLearning based
The invention discloses an image classification method through the fast and locality-constrained low-rank coding process. The method comprises a dictionary learning part, a training part and a testing part. During the dictionary learning part, a corresponding dictionary is obtained based on SIFT features extracted out of all data sets according to the k-means clustering method or other dictionary learning methods. During the training part, one part of images in each data set are selected as training images, and then the corresponding low-rank representation corresponding to each data set is learned based on the tags of the images. Through the SPM quantization process and the SVM classifier-based training process, category labels and a kernel function corresponding to a feature representation matrix are obtained. During the testing part, all remaining images in each data set are adopted as to-be-classified test images. For any unclassified image, the SIFT features of the image are extracted firstly, and then a low-rank coding matrix thereof in the dictionary is found out. Through the SPM quantization process, a final feature representation matrix is obtained. The final feature representation matrix is input into an SVM classifier obtained during the training part, so that the category of the image can be known.
Owner:CHONGQING UNIV

Electronic test paper importing method

The invention discloses an electronic test paper importing method which comprises the following steps: 1, acquiring a texture of electronic test paper, and carrying out redundancy processing; 2, distinguishing a test paper head and a test question part of the electronic test paper after the redundancy processing; 3, when identifying the test paper head, marking a first row of identified character strings as the title, marking other information as introduction information, and respectively storing the title and the introduction information into test paper classes of an object tree; 4, when identifying the test question part, dividing the texture of the test question part into a plurality of test questions by checking key fields of the texture of the test question part; 5, identifying the type, question stem and option information of each question by checking the key field of each question of the plurality of test questions, and respectively storing the type, question stem and option information of each question into the test question types of the object tree; 6, illustrating the preview information of the electronic test paper to accomplish automatic importing of the electronic test paper. By adopting the method, automatic importing of electronic test paper is achieved with convenience and rapidness.
Owner:GUANGZHOU SHIYUAN ELECTRONICS CO LTD

Ammonia gas leakage protecting device

The invention relates to an ammonia gas leakage protecting device which comprises a first ammonia gas detecting unit, a second ammonia gas detecting unit, a data collection control unit, a refrigeration action unit, a single freeze action unit, a communication unit and an emergency illuminance unit. The first ammonia gas detecting unit is arranged in a refrigerating station, the second ammonia gas detecting unit is arranged in a single freezing area, and ammonia gas detectors are arranged in the two ammonia gas detecting units. The data collection control unit comprises a data collection module, a comparison module, a storage module and a logic control module. The refrigeration action unit comprises a first exhaust fan controller, a first spray controller and a first valve controller. The ammonia gas leakage protecting device can detect the ammonia concentration in the refrigerating station and in the single freezing area of a manufacturing shop. In addition, after data collection, all controllers are started, and loss caused by ammonia gas leakage can be prevented.
Owner:栾学德

Search result sorting method and device, electronic equipment and storage medium

The embodiment of the invention provides a search result sorting method and device, electronic equipment and a storage medium. The method comprises the following steps that: obtaining the query request and the characteristic information of a user; aiming at the query request, carrying out retrieval, and obtaining a search result; according to the characteristic information of the user, judging a user scene; determining a target requirement type corresponding to the user scene; and according to the target requirement type, determining a sorting scheme for the search result. In the embodiment ofthe invention, the user scene where the user is positioned at present is judged, the target requirement type corresponding to the user scene is searched, user requirements can be more efficiently andaccurately determined, and the search result related to the user requirements is more favorably displayed to the user.
Owner:BEIJING SANKUAI ONLINE TECH CO LTD

Digital TV set with blue tooth communication function

The invention relates to digital TV with bluetooth communication function, which comprises: the data I / O port and audio I / O port of bluetooth communication module connect to a group serial I / O ports of MPU and TV circuit audio I / O port, respectively; another group data output ports of the MPU connect to video input port of TV circuit; the bluetooth module receives grouped data of picture by asynchronous connectionless channel and sends to MPU for unpacking treatment into digital video signal to send to TV circuit for display; the MPU frame samples the video output signal of TV circuit to group and pack and send to the bluetooth module; the bluetooth module receives the audio signal by synchronous facing-connection channel to transmit to TV circuit for play; TV circuit sends the audio signal to bluetooth for transmission outward by synchronous facing-connection channel.
Owner:AMOI TECH

Methods for determining image-subject significance and training image-subject significance determining classifier and systems for same

The invention discloses a method and system for training an image-subject significance determining classifier, a method and system for determining image-subject significance, and a method for searching images via visual characteristics. The method for training the image-subject significance determining classifier comprises the following steps of using A images of subject significance as a positive sample, and using B images of subject non-significance as a negative sample, wherein A and B are positive integers; extracting visual characteristics, which comprise visual significance levels, from the positive and negative samples in multiple dimensions; and training the image-subject significance determining classifier by utilizing the extracted visual characteristics. According to the methods and systems of the invention, whether an image subject has significance can be rapidly and accurately determined, thereby helping image examination, screening and retrieval, etc.
Owner:ALIBABA GRP HLDG LTD

Shield general segment assembling point location determining method

The invention discloses a metro shield construction general segment assembling point location determining method. A shield tunneling machine is used for conducting shield tunneling construction on a construction tunnel along a tunnel central axis from back to front. After the shield tunneling construction is completed for one link, shield segment assembling construction is carried out. Before anylink of shield segment assembling construction is performed, first of all, segment assembling point locations of current shield segments are determined. Processes include the following steps that firstly, selectable assembling point locations are determined; secondly, selection influence indexes and weight coefficients of the selection influence indexes are determined, and the three selection influence indexes and the weight coefficients of the three selection influence indexes influencing segment assembling point location selection are determined separately; thirdly, the selectable assemblingpoint locations are selectively evaluated, wherein according to a weight coefficient method, the selection of all the selectable assembling point locations is evaluated separately, and the segment assembling point locations of the current shield segments are determined. The shield general segment assembling point location determining method is simple in step reasonable in design, convenient to achieve, good in using effect and capable of conveniently, fast and precisely determining the assembling point locations of the general segments.
Owner:CHINA RAILWAY FIRST GRP CO LTD +1

Customer terminal webpage representation implementing method used for enterprise information push application

The invention discloses an implementation method of client side page presentation used for enterprise information push application. The method comprises the following steps: a template developer configures a business presentation page for enterprise application into an XML page presentation template in an XML format based on the specific application condition of the enterprise; and a client side acquires template information from an enterprise application proxy device, and locally completes analysis and presentation of the related XML business template. The method causes the implementation of the page presentation of the enterprise information by the client side to be more universal and convenient; and can cause a user to obtain the best experience by separating a bottom layer from the business.
Owner:CHINA TELECOM CORP LTD

Small-particle yellow rare-earth fluorescent powder and preparation method and purpose of visualizing latent fingerprint thereof

The invention discloses small-particle yellow rare-earth fluorescent powder and a preparation method and a purpose of visualizing a latent fingerprint thereof. The general structure formula of the fluorescent powder is Y3-x-yCexGdyA15O12, wherein the x is not less than 0.1 and no larger than 0.4, y is no less than 0.1 and no larger than 0.4 and the particle size is between 1.5 to 3 Mum. The preparation method comprises the steps of weighing up raw materials according to the stoichiometric ratio of the structure formula, grinding and evenly mixing up the raw materials, sintering the raw materials with high-temperature solid-phase method to obtain powder and obtaining the small-particle yellow rare-earth fluorescent powder by adopting an ultrasonic dispersion technology after the powder goes through a mesh with 300 to 400 eyes. The small-particle yellow rare-earth fluorescent powder can be applied to visualizing the latent finger print after being amido-functionalized by gamma-Aminopropyl triethoxy silane and being mixed with reduced iron powder which goes through a mesh according to a certain ratio. The fluorescent powder provided by the invention has even and small particles, high fluorescent intensity, the excitation wave length between 460 to 480nm which is within the range of the light source commonly used in criminal investigation and the emission wave length between 520 to 570nm, is conducive to visualizing the latent finger print on the site and eliminating the disturbance of the object background and is important for establishing a high-efficient, non-toxic, lossless and convenient finger print visualizing method.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Method and device for cleaning up resources of terminal and terminal

The invention provides a method and device for cleaning up resources of a terminal and the terminal. The method comprises the step of receiving a cleaning-up instruction and obtaining the resources stored on the terminal according to the cleaning-up instruction, the step of processing the resources and storing processed resources, wherein storage space occupied by the processed resources is smaller than storage space occupied by the resources, and the step of inquiring whether the resources are stored on a server, wherein if the resources are stored on the server, a deletion prompt message is displayed, and the resources are deleted according to operation executed by users. According to the method and device for cleaning up the resources of the terminal and the terminal, the occupation of the storage space of the terminal by the resources can be greatly reduced; meanwhile, before the resources are deleted, it is guaranteed that the corresponding resources are stored on the server, and therefore the users can show the resources again conveniently.
Owner:KINGSOFT

Image denoising method and system based on multi-scale expansion convolution residual network

The invention discloses an image denoising method and a system based on a multi-scale expansion convolution residual network, and the method comprises the steps: obtaining a training data set, and carrying out the cutting of an image in the training data set, and obtaining a block image; constructing a network model, adopting a mode of combining batch normalization and residual learning, adoptingan optimal mixed expansion rate mode, and introducing a multi-scale structure to obtain an end-to-end image denoising model; setting hyper-parameters of a network model, and selecting a loss functionand an optimization method to train the image denoising model to obtain a trained image denoising model; and converting the noise picture, inputting the converted noise picture into a trained image denoising model, performing average operation on the obtained picture, and outputting the denoised picture. According to the method, the denoising performance of the network can be ensured while the parameter quantity of the network is reduced, and the sharp edge and the fine detail information of the picture can be reserved while the noise of the picture is removed.
Owner:UNIV OF SCI & TECH OF CHINA

Comment information quality evaluation method, system, comment information processing method and system

The invention discloses a comment information quality evaluation method and system. The method includes the following steps that: an entire comment text is obtained; equal-information amount short sentence segmentation is performed on the entire comment text, so that short sentence units can be obtained; the information entropy-based information values of the short sentence units are determined; the weights of the information values of the short sentence units are adjusted on the basis of industry information; and the quality of the entire comment text is determined according to the information values of the short sentence units. The invention also discloses a comment information processing method and system. With the methods and systems of the invention adopted, the objective and accuratequality evaluation of comment information can be realized, and thus, more effective reference information can be provided for user transactions.
Owner:KOUBEI SHANGHAI INFORMATION TECH CO LTD

Promotion search result display method and device

The invention provides a promotion search result provision method and device and aims to increase utilization rate of promotion search result pages. The method includes: receiving a search word that a user inputs; optimizing keywords that a client submits to obtain a key part of the keywords; matching the key part of the keywords with the search word; when the key part of the keywords matches with the search word, displaying promotion search results corresponding to the keywords. The method and the device have the advantages that utilization rate of the promotion search result pages is increased and more information is provided through the promotion search result pages.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

A security visual analysis system based on company internal log

InactiveCN109299044AShow wellSatisfies the search on different levels of detailsSpecial data processing applicationsFile system functionsData transmissionSecurity analysis
A security visual analysis system based on company internal security log in big data scenario is provided. Based on the perspective of internal network user behavior, the internal network security threat events are mining in visual form, and the internal employee network behavior data are displayed in a variety of visual views, which can make the employee user behavior information be better displayed; the security visualization analysis system is divided into five levels: a data cleaning layer, a data storage layer, a data processing layer, a data transmission layer and a data visualization layer. The invention can make the safety maintenance personnel more intuitively and effectively find the abnormal situation of the internal user behavior.
Owner:ZHEJIANG UNIV OF TECH

Rare earth long-persistence luminescent powder, preparation method and application thereof

The invention provides rare earth long-persistence luminescent powder, a preparation method and a method of applying the powder as a latent fingerprint revealing reagent. The structural general formula of the rare earth long-persistence luminescent powder is M1-x-yAl2O4:Eux<2+>, Dyy<3+ > (x=0.005, and y=0.011), wherein M is any one of Sr, Ca or Ba; and the grain diameter of the long-persistence luminescent powder is 1-3 microns. The rare earth long-persistence luminescent powder is prepared by a sol-gel method. The method of applying the powder as the latent fingerprint revealing reagent comprises the following steps: the rare earth long-persistence luminescent powder is mixed with reduced iron powder; then the compound is used to reveal the latent fingerprint on an object; white light or UV-light excitation is used to collect fingerprint images or self-luminous images. The preparation method of the rare earth long-persistence luminescent powder is simple; the excitation wavelength coverage of the prepared rare earth long-persistence luminescent powder is wider and the emission wavelength coverage is narrower, so that the powder is convenient to reveal the latent fingerprint in the field. The powder has the characteristics of higher fluorescent intensity and long persistence (self-luminous); and after the fingerprint is revealed, the object background interference can be effectively eliminated. The powder is non-toxic, lossless and environment-friendly.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Method for determining duct piece splicing point position of universal ring for subway shield construction

The invention discloses a method for determining a duct piece splicing point position of a universal ring for subway shield construction. The method comprises the following steps: performing shield tunneling construction on a constructed tunnel from back to front along the central axis of the tunnel by adopting a shield tunneling machine; after a ring of the shield tunneling construction is completed, performing shield duct piece splicing construction; before any ring of shield duct piece splicing construction, determining the duct piece splicing point position of shield duct pieces of the current ring first, wherein the method for determining the duct piece splicing point position comprises the following processes: firstly, determining selectable splicing point positions; secondly, determining selection influence indexes and weight coefficients thereof: respectively determining the three selection influence indexes which influence the selection of the duct piece splicing position point and the weight coefficients thereof; thirdly, performing selectivity evaluation on the selectable splicing position points: respectively evaluating the selectivity of each selectable splicing position point according to a weight coefficient method, and determining the duct piece splicing point position of the current shield duct piece. The method disclosed by the invention is simple in step, reasonable in design, convenient to implement and good in using effect, and can determine the splicing point position of the duct pieces of the universal ring easily, conveniently and accurately.
Owner:CHINA RAILWAY FIRST GRP CO LTD

Panorama displaying method of unmanned aerial vehicle image

The invention discloses a panorama displaying method of an unmanned aerial vehicle image. The panorama displaying method comprises the following steps: 1) an unmanned aerial vehicle collects a photo with geographic position information and time; 2) the photo collected by the unmanned aerial vehicle is converted into an interactive panorama picture; 3) a database with the time and the geographic position information is established, and the panorama picture and the database are corresponded; and 4) the client side displays the panorama picture. By use of the panorama displaying method of the unmanned aerial vehicle image, the unmanned aerial vehicle which is an emerging tool is used for carrying out periodic shooting on the new panorama picture, a display system can be cooperated to not only display city elegant demeanour and the change process of the city at a clear large viewing angle but also visually, efficiently and comparatively show image data.
Owner:深圳市创驰蓝天科技发展有限公司

Adaptive bit allocation for multi-channel audio encoding

The invention provides a highly efficient technique for encoding a multi-channel audio signal. The invention relies on the basic principle of encoding a first signal representation of one or more of the multiple channels in a first encoder (130) and encoding a second signal representation of one or more of the multiple channels in a second, multi-stage, encoder (140). This procedure is significantly enhanced by providing a controller (150) for adaptively allocating a number of encoding bits among the different encoding stages of the second, multi-stage, encoder (140) in dependence on multi-channel audio signal characteristics.
Owner:TELEFON AB LM ERICSSON (PUBL)

Tuning effect self-matching method and system

The invention discloses a tuning effect self-matching method and system. The method comprises the following process of through pre-caching of to-be-played music, obtaining an audio source file of a current to-be-played audio file; judging a music type of the current to-be-played audio file; judging whether a music effect parameter of the audio file needs to be changed or not according to the music type; if the music effect parameter needs to be changed, searching the music effect parameter corresponding to the music type of the audio file from a database and matching the music effect parameter with the current to-be-played audio file; and decoding and playing the current to-be-played audio file according to the music effect parameter. According to the method and the system, a function of automatically matching the corresponding music effect parameter for each audio file is achieved, so a user can enjoy the music well.
Owner:SHENZHEN TRANSSION HLDG CO LTD
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