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554results about How to "Rich relevant information" patented technology

Method and device for acquiring knowledge graph vectoring expression

ActiveCN105824802ARich relevant informationSolve the problem of insufficient representation effect caused by sparsityNatural language data processingSpecial data processing applicationsStochastic gradient descentGraph spectra
The invention discloses a method and a device for acquiring knowledge graph vectoring expression. The method comprises the following steps of labeling an entity, existed in and belonging to a knowledge graph, in a given auxiliary text corpus by utilization of an entity labeling tool according to a to-be-processed knowledge graph so as to obtain an entity-labeled text corpus; constructing a co-occurrence network comprising words and entities on the basis of the text corpus so as to relate text information of the auxiliary text corpus to entity information of the knowledge graph, and then learning to obtain a text context embedded expression; respectively modeling the embedded expression of the entity and relation in the knowledge graph according to the text context embedded expression so as to obtain an embedded expression model of the knowledge graph; training the embedded expression model by utilization of a stochastic gradient descent algorithm so as to obtain the embedded expression of the entity and relation in the knowledge graph. The method and the device disclosed by the invention have the advantages that not only can the expression capability of the relation be improved, but also the problem of insufficient expression effect caused by sparseness of the knowledge graph can be effectively solved.
Owner:TSINGHUA UNIV

Laser radar and visual sensor fused dynamic grid map structuring method

The invention relates to a laser radar and visual sensor fused dynamic grid map structuring method. The laser radar and visual sensor fused dynamic grid map structuring method comprises combining thelaser radar and the visual sensors of a designated traveling vehicle, marking static targets and dynamic targets through classification, and ensuring information time synchronization of the sensors; during a vehicle traveling process, structuring a multi-dimensional dynamic-static grid map. The laser radar and visual sensor fused dynamic grid map structuring method has the advantage that, comparedwith the prior art, the structured map is the multi-dimensional dynamic-static grid map and is generated during the vehicle travelling process. The structured dynamic-static grip map can show the road states around the current vehicle such as drivable areas, surrounding obstacles and the motion states of the obstacles to provide information for safe driving of the vehicle in a current local areaand to provide a self-driving vehicle with safe, reliable and predictable local road area information, and meanwhile, the visual sensors of the self-driving vehicle can help enrich the information ofthe dynamic-static grid map.
Owner:上海主线科技有限公司

Unmanned aerial vehicle cruising and monitoring system for forest fire

The invention provides an unmanned aerial vehicle cruising and monitoring system for forest fire. The weight of the unmanned aerial vehicle is reduced, flight time is prolonged, an unmanned aerial vehicle cruising range is enlarged, route planning is carried out for fire monitoring, and an unmanned aerial vehicle flight control system is combined with a geographic information system. The route planning not only guarantees monitoring quality and monitoring full coverage but also considers the hardware parameters and the flight safety of the cruising unmanned aerial vehicle, a rotary head carries a thermal infrared imager and a colorful high-definition camera, the thermal infrared characteristics of the image of the forest fire are fully utilized, and an automatic monitoring and identification method for forest fire information is designed. Even if the forest fire monitoring distance of the unmanned aerial vehicle is long, fire characteristics can be accurately captured. A colorful high-definition image is compressed and transmitted back to a ground command post, a high-definition fire video image can be quickly transmitted to the ground, a fire position can be accurately reported, so that convenience is brought to the ground command post in accurately judging a fire situation and organizing people to fight the fire, and precious fire-fighting time is saved.
Owner:刘秀萍

Identification method of transient state stable key transmission cross-section of electric power system fault

The invention provides an identification method of transient state power-angle stable key transmission cross-section corresponding to an expected fault, belonging to the field of electric power systemdispatching automation. Based on a transient state power-angle stable quantitative analysis theory and method, namely extended equal-area criterion (EEAC), the method identifies the key transmissioncross-section corresponding to the expected fault to provide decision support for the electric power system dispatching operation and control. The method comprises the following steps: carrying out atime domain simulation in an expected fault scene based on the operation state, model and parameters of an electric fence; identifying a generator critical group with stable transient state power-angle by EEAC based on simulation track and calculating the participation factor of the generator; calculating the sensitivity to the cross-section components power change caused by the output of each generator in the generator critical group by a power flow sensitivity analysis method; and taking the sum of products of the participation factor in each generator of the generator critical group and corresponding sensitivity of the cross-section component as a judging indicator of the transient state stable key transmission cross-section corresponding to the fault.
Owner:NARI TECH CO LTD

Beef quality multi-parameter simultaneous detection method by multichannel near-infrared spectroscopy

The invention discloses a beef quality multi-parameter simultaneous detection method by multichannel near-infrared spectroscopy, belonging to the rapid nondestructive detection range of beef quality. The method comprises the following steps: first, arranging a spectral detection system comprising an 8-channel fiber multiplexer, two spectrometers with different wavelength ranges and probe units ina movable control cabinet, wherein the 8-channel fiber multiplexer is respectively connected with the spectrometers and the probe units; embedding in a production line technology to carry out on-linedetection to obtain optimum spectra data, wherein the quality detection of carcass and cut meat can be simultaneously satisfied; establishing a calibration prediction model, evaluating model effects by using relative analytical errors, carrying out model analysis on a large number of sample experimental data, respectively establishing prediction models of tenderness and water content to obtain a predicted value of each index, and then plugging the obtained predicted values into a beef multi-parameter comprehensive quality evaluation model which is established based on the detected indexes to obtain a final meat grade. According to the invention, the spectral information in the visible near-infrared band is collected, the information is abundant, the detection indexes have extensibility, and the method can be suitable for the requirement of production line detection.
Owner:CHINA AGRI UNIV

Cytological intelligent auxiliary reading method and system for cervical fluid-based slide

The invention provides a cytological intelligent auxiliary reading method and system for a cervical fluid-based slide, and belongs to the technical field of medical image processing. The cytological intelligent auxiliary reading method comprises: performing full-slide scanning, acquiring single-sheet full-slide digital microscopic image; performing recognition and classification on the full-slidedigital image, labeling a pathological cell region and an overlapping cell region as suspicious labeling area, generating a search region centered on the suspicious labeling area; moving the slides tosend the search region into an imaging view field one by one, performing multi-dimensional three-dimensional imaging. The system provided by the invention comprises an electrically controlled two-dimensional loading platform, a Z-axis moving unit, a slide code reading unit, a microscope, an imaging unit, three-dimensional imaging, and sending the imaging results to an image processing console. The cytological intelligent auxiliary reading method and system only perform multi-dimensional imaging on pre-selected search regions, not only provides complete 3D information, but also greatly reducesthe total imaging time of each slide, a pathologist has no need to browse the whole slide and search the pathological cells, therefore the reading efficiency is improved.
Owner:怀光智能科技(武汉)有限公司

Cross-medial personage news searching method and system capable of fusing multi-mode information

The invention belongs to the technical field of multi-media information searching and news searching, and particularly relates to a cross-medial personage news searching method and system capable of fusing multi-mode information. The searching method includes the steps of obtaining multi-mode news information on the internet, extracting names of news figures to obtain textural features of news, extracting facial images of the news figures to obtain image features of the news, conducting network information supplement on the rarely-seen news figures, conducting name-image alignment cluster learning on the news figures, and achieving searching for faces of the figures and searching for the names of the figures. The searching system comprises six modules corresponding to the steps of the searching method respectively. The cross-medial personage news searching method and system capable of fusing the multi-mode information can well solve the problem of network news name-face alignment and solve the problem of searching for personage news accordingly. The two problems have significance in the multi-medium information searching field and the news searching field, and the cross-medial personage news searching method and system capable of fusing the multi-mode information have wide application value.
Owner:FUDAN UNIV

Dual-optical-frequency-comb linear spectral encoding imaging method

The invention discloses a dual-optical-frequency-comb linear spectral encoding imaging method. According to the method, two optical frequency combs with locked repetition frequencies are used, and thetwo optical frequency combs output signal light and local oscillator light respectively. The signal light is divided into detection light and reference light. The detection light passes a spectral encoder to be focused on the surface of a sample to be measured, the sample to be measured is encoded, and then the sample to be measured and the local oscillator light are subjected to dual-optical-frequency-comb heterodyne interference. The reference light directly interferes with the local oscillator light. Two interference pulse signals are generated and are converted into digital signals by signal acquisition. Optical reference compensation detection jitter is used, and a sample absolute distance with high precision and high stability, a linear reflectivity and phase information are obtained. The sample is moved linearly, continuous measurement is performed, and a 3D topographic image and a 2D reflectance image with high precision are achieved. The dual-optical-frequency-comb linear spectral encoding imaging has the advantages of simple structure, high measurement speed, high precision, a large amount of information and high expansion.
Owner:EAST CHINA NORMAL UNIVERSITY
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