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87results about How to "Accurate depiction" patented technology

Information propagation model based on online social network and propagation method thereof

The invention requests the protection for a information propagation model based on online social network and propagation method thereof, and belongs to the field of online social network analysis. The information propagation model is composed of accessing to the data source, building dimensional attribute driving mechanism and building dynamic evolution strategy, building hot topic propagation model. The first step, the data source is accessed. The second step, dimensional attribute driving mechanism is built, user attributes is extracted from two aspects of network structure and user history, and the effects the two factors have to the driver of the user's participation in the topic are stated quantitatively through utilizing multiple linear regression methods. The third step, dynamic evolution strategy is built, income matrix is defined and popularity is perceived, and according to evolutionary game theory, building dynamic evolution strategy. The fourth step, hot topic propagation model is built. The user multidimensional attribute model, dynamic evolution strategy and traditional SIR model build a novel hot topic propagation model. The invention has the advantages of being effective to describe the spread of trend hot information in social networks and reveal the influence of different driving factors on information dissemination.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Method and device for delivering advertisement in network forum

The invention relates to the technical field of internet application, and particularly provides a method and a device for delivering an advertisement in a network forum. The method comprises the steps of acquiring the keyword of a user and the keyword of each advertisement during the scheduling period, wherein the keyword of the user comprises at least one user keyword and the keyword of the advertisement comprises at least one advertisement keyword; searching a vector corresponding to the user keyword and a vector corresponding to the advertisement keyword in a word-vector library; according to the vectors corresponding to the user keyword and the advertisement keyword, calculating a cosine similarity for each user keyword and each advertisement keyword; accumulating the cosine similarities of all user keywords of the user and the advertisement keywords of the same advertisement; adopting the accumulated result as the matching degree of the user and advertisements; selecting one advertisement highest in matching degree with the user and delivering the selected advertisement to the user. According to the technical scheme of the invention, matching words with the semantics can be found, and the advertisement accurate delivery aiming at different users can be realized.
Owner:天涯社区网络科技股份有限公司

Model and method for measuring resistance of contact holes or through holes in bipolar transistor components

The invention provides a model and a method for measuring the resistance of contact holes or through holes in bipolar transistor components, used for measuring the resistance of contact holes and through holes in the back-end process of transistor components. The model consists of a plurality of resistor components, wherein, a group of poly-silicon resistors or diffused resistors with different lengths and widths are required to be designed for measuring the resistance of the contact holes; and a group of metal resistors with different lengths and widths are required to be designed for measuring the resistance of the through holes. Each poly-silicon resistor consists of a poly-silicon layer, a contact hole and metal lead-out; each diffused resistor consists of an N-type or P-type diffusedlayer, a contact hole and metal lead-out, wherein, the contact hole is located between the poly-silicon layer or the diffused layer and the metal layer and used for leading out the poly-silicon resistors or the diffused resistors; and each metal resistor consists of a certain layer of metal, a through hole and metal lead-out, wherein, the through hole is located between two layers of metal and used for leading out the metal resistors in the lower layer. The current passing the resistors can be measured by applying voltage to two resistor lead-out ends of each resistor.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

A wind power ultra-short term probability prediction method and system based on empirical dynamic modeling

The invention discloses a wind power ultra-short term probability prediction method and system based on empirical dynamic modeling, and the method comprises the steps of carrying out the standard normalization processing on a time sequence of a to-be-predicted quantity, and carrying out the nonlinear aggregation degree calculation of data after the standard normalization processing, so as to inspect the nonlinear degree of a given dynamic system; calculating an optimal embedding dimension E and delay time tau by adopting a particle swarm optimization algorithm; further, performing phase spacereconstruction on the time sequence of the to-be-predicted quantity; and constructing an empirical dynamic model, and predicting the given dynamic system in the reconstruction phase space by adoptinga simplex projection method to obtain a prediction result of the to-be-predicted quantity. The prediction result shows that the wind power ultra-short term probability prediction method based on empirical dynamic modeling can achieve objective description of the wind power generation dynamic process completely according to data, and the effectiveness of probability prediction is remarkably improved.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +3

Simulation operation method for large-scale reservoir group in main stream and tributaries of river basin

The invention discloses a simulation operation method for a large-scale reservoir group in a main stream and tributaries of a river basin, and belongs to the field of optimal operation of a hydropowersystem. The method comprises the following steps that (1) construction of reservoir operation function is conducted, analysis of relevant factors affecting reservoir outflow is conducted, correlationanalysis is conducted, and determination of input factors of each reservoir operation function is conducted; (2) construction of a neural network model is conducted according to the input factors ofthe operation function, optimization of neural network parameters is conducted by adopting an adaptive moment estimation algorithm, training is conducted on the constructed neural network by using historical operation data of the reservoir, and the trained neural network is used as fitting function of the reservoir operation function; and (3) according to the fitting function of the reservoir operation function, a spatial topological structure and the constraints of the reservoir operation, the simulation operation model of the reservoir group is established to simulate the operation process of the basin reservoir group step by step. By means of the simulation operation method, the fitting accuracy is improved significantly, and the operation plan of the large-scale reservoir group in themain stream and tributaries of the river basin can be more accurately described in the case of the unknown operation law.
Owner:HUAZHONG UNIV OF SCI & TECH

Wireless delay-tolerant network routing method based on multi-layer network

The invention relates to a wireless delay-tolerant network routing method based on a multi-layer network, and belongs to the field of computer network technologies. The method is based on the following rule comprising a one-copy routing strategy, and a TTL field of each message which identifies the life time of the message, wherein the field is continuously reduced along with time, and when the field is reduced to zero, the message is discarded. The method comprises the following steps of firstly establishing a multi-layer social graph according to social contact information such as historical meeting records, historical communication records, friend lists of online social contact platforms and interest set data; then extracting a social contact attribute according to the multi-layer social graph; then computing a corresponding social contact index according to social contact attribute; and at last determining that whether to forward a data packet according to the social contact index. Compared with the prior art, the method effectively improves the success rate for forwarding the DTN network message, and is applicable to the network environment which has a certain tolerance to transmission delay but is high in requirement on the success rate for forwarding the message.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

3 D projection printing system and method thereof

The invention provides a 3 D projection printing system and a method thereof. The 3 D projection printing system comprises a projection unit, an image sensing unit, an image processing unit and an accommodating chamber, wherein the projection unit is used for projecting light sources to an object; the image sensing unit is used for scanning at least one variable image produced by the light sources projected to the object; the image processing unit is used for receiving the variable images, generating stereoscopic images, conducting layer cutting processing on the stereoscopic images and sending generated data comprising a plurality of layers of plane images to the projection unit; and the accommodating chamber is used for accommodating a photographic forming material. The plane images are projected to the corresponding parts of the photographic forming material layer by layer through the projection unit according to the data so as to be subjected to light curing, and then the light-cured part corresponding to each layer of plane image is subjected to curing, so that each corresponding stereoscopic layer is formed, and when all stereoscopic layers are formed one by one, a stereoscopic object corresponding to the overall appearance of the object is formed.
Owner:SINTAI OPTICAL SHENZHEN CO LTD +1

Electronic fitting device and wardrobe containing electronic fitting device

The invention discloses an electronic fitting device and a wardrobe containing the electronic fitting device. The electronic fitting device comprises a device body, an electronic balance, an ultrasonic wave sensor and a universal cantilever support, wherein the device body is provided with a display, the electronic balance is connected with the device body, and the ultrasonic wave sensor is connected with the upper portion of the device body through a bracket. The provided electronic fitting device and the wardrobe containing the electronic fitting device have the advantages that the structureis simple and reasonable, the electronic fitting device and the wardrobe are convenient when being installed and used, the electronic fitting device not only has a function of depicting a human bodybust-waist-hip model accurately, but also has a function of depicting clothes, jewelry, shoes and the like of a user more finely, and the finely depicted clothes, jewelry, shoes and the like of the user are placed on the human body bust-waist-hip model to enhance the reality sense; the provided wardrobe can help the user locate the position wherein target clothes are located accurately, thereby shortening the time of the user finding and matching the clothes, the individuation is strong, and the user experience is improved.
Owner:冯云霞

Coal bed gas prediction method based on frequency attenuation

InactiveCN104237941AEffectively describe the thicknessEffectively characterizes horizontal discontinuitiesSeismic signal processingFrequency spectrumDecomposition
The invention provides a coal bed gas prediction method based on frequency attenuation, and belongs to the field of seismic exploration and development of oil gas and coal bed gas. The coal bed gas prediction method comprises the steps that (1) seismic data x(t) are input; (2) pulse deconvolution frequency increase processing is conducted on the seismic data x(t), and a seismic record S(t) after frequency increase is obtained; (3) wavelet transformation spectral decomposition is conducted on the seismic record S(t) obtained after the frequency increase, and frequency spectra at the top and the bottom of a coal bed are obtained; (4) the difference value between the frequency spectra at the top and the bottom of the coal bed is obtained, contrastive analysis is conducted on the coal bed and the difference between the frequency spectra, and a frequency attenuation result of the coal reservoir is obtained; (5) the frequency attenuation result of the coal reservoir is output. According to the coal bed gas prediction method based on frequency attenuation, the pulse deconvolution frequency increase technology is applied, so that dominant frequency of the seismic data is effectively increased, an effective frequency band is broadened, and a data guarantee is provided for analysis of seismic wave frequency absorption attenuation features.
Owner:CHINA PETROLEUM & CHEM CORP +1

DSM automatic comparison system based on aerial photography measurement

The invention discloses a DSM automatic comparison system based on aerial photography measurement, and belongs to the technical field of aerial photography measurement. The system comprises an elevation extraction module, an elevation conversion module, a layer superposition module and a comparison labeling module; the elevation extraction module is used for extracting elevation data of the two stages of aerial photos processed by the aerial photo processing module; the elevation conversion module is used for converting the elevation data of the two-stage aerial photo extracted by the elevation extraction module into a vector layer; the layer superposition module is used for performing superposition processing on vector layers of the two stages of aerial photos; the comparison labeling module is used for labeling areas with changes in the two-stage aerial photo vector layers. According to the invention, the method is scientific and reasonable, is suitable for large-scale aerial photo inspection and comparison, greatly shortens the inspection and comparison time, greatly reduces the manpower investment, can more accurately discover the existence of illegal buildings, is higher in comparison pertinence, and can achieve the effect of screening buildings with different areas through the adjustment of various numerical values.
Owner:常州市新翼空间信息科技有限公司

User behavior big data analysis system based on Internet

The invention provides a user behavior big data analysis system based on Internet, which comprises a database, a data analysis module, an enterprise terminal, a user terminal and a push module. The enterprise terminal is used for collecting product or service information provided by the enterprise, the user terminal is used for collecting user access information, and the database is used for presetting and storing user information model to form a unified user data format. The user terminal and the enterprise terminal send the collected information to the database respectively. After the database updates the user information model by using the information uploaded by the user terminal, the updated user information model is transmitted to the data analysis module. After the analysis of the data analysis module, the user behavior preference information is obtained, and the user behavior preference information is transmitted to the enterprise terminal through the data pushing module. The invention accurately retrieves access trajectory, personal preference and payment data of a user on a common network application through a user terminal, thereby laying a foundation for describing moreaccurate user model data.
Owner:函数成智(南京)科技股份有限公司
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