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217 results about "Semantic query" patented technology

Semantic queries allow for queries and analytics of associative and contextual nature. Semantic queries enable the retrieval of both explicitly and implicitly derived information based on syntactic, semantic and structural information contained in data. They are designed to deliver precise results (possibly the distinctive selection of one single piece of information) or to answer more fuzzy and wide open questions through pattern matching and digital reasoning.

Construction method and device of knowledge base question-answering system, equipment and storage medium

The invention relates to the technical field of database construction, in particular to a knowledge base question-answering system construction method and device, equipment and a storage medium. The method comprises the following steps: acquiring a user question instruction, and performing part-of-speech tagging and keyword vectorization on a target text to generate a retrieval text keyword vector; performing semantic linear embedding and spatial projection processing on the keyword vectors to obtain keyword semantic vectors; logic mining is conducted on the keywords, a logic relation set among the keywords is obtained, logic recognition is conducted on the target text based on the relations, and retrieval text logic is generated; performing matching retrieval with semantic vectors in a knowledge base to obtain a candidate semantic query data set; and performing coherent logic retrieval on the candidate data set according to the retrieval text logic and the keyword vector to generate a final retrieval target answer. According to the method and the system, more accurate and efficient knowledge base question-answering system construction is realized.
Owner:YINGZHI FUTURE (SHENZHEN) ARTIFICIAL INTELLIGENCE TECH CO LTD

Digital twin three-dimensional scene modeling method based on webGPU

The invention discloses a digital twin three-dimensional scene modeling method based on a webGPU, and relates to the technical field of three-dimensional scene modeling and graphic computing, multi-source sensing data are asynchronously sampled from sparse point cloud, a video texture sequence, a scene semantic tag graph and a structure boundary tuple, and a six-dimensional structure unit group is generated through a normalization operator; constructing a structural unit atlas with nodes representing component entities and edges representing constraint relations, and introducing a tension balance mechanism and multi-scale constraints to generate a modeling path prior model; constructing a graph calculation and graph rendering dual-channel assembly line in the WebGPU, and executing parallel texture mapping and boundary fitting operation; a dynamic sensing module is used for capturing scene disturbance and driving atlas response, and incremental reconstruction of the model is achieved; and finally, mapping the model to a Web terminal, and supporting microscopic semantic query and multi-layer data linkage. According to the method, the response speed, semantic consistency and structural adaptability of three-dimensional modeling in a complex environment are improved.
Owner:ZHEJIANG ZHEFENG YUNZHI TECH CO LTD

Conference memory enhancement method and equipment for conference tablet and medium

The invention discloses a conference memory enhancement method and device for a conference tablet and a medium, and relates to the technical field of intelligent conference equipment, and the method comprises the steps: collecting multi-modal data in real time based on a preset data collection technology, and coding the multi-modal data into a space-time event stream according to the time sequence of the multi-modal data; identifying handwritten characters on the conference tablet, and extracting a key tag in a speech in combination with a pre-trained natural language processing model to construct a conference knowledge graph corresponding to the current conference; comparing the conference knowledge graph with a historical conference knowledge graph, determining conflict content, and superposing a virtual information layer on a physical interface of the conference tablet; and querying query association information corresponding to the semantic query request based on the conference knowledge graph and the time-space time stream to determine semantic contradictions, and displaying a historical conference evidence chain of the semantic contradictions based on the virtual information layer.
Owner:SHANDONG INSPUR ULTRA HD INTELLIGENT TECH CO LTD

General document image segmentation method based on query decoupling and prototype classification

The invention relates to the field of image segmentation, and provides a general document image segmentation method based on query decoupling and prototype classification, and the method comprises the steps: extracting multi-scale visual features of an input document image through employing a visual skeleton network, and carrying out the optimization, and obtaining the optimized multi-scale visual features; encoding the character description of each to-be-segmented region category into a semantic query vector by using a text encoder, and randomly initializing a preset number of instance query vectors; inputting the optimized multi-scale visual features, the semantic query vector and the instance query vector into a mixed query decoder to obtain an updated semantic query vector and an updated instance query vector; and respectively carrying out semantic segmentation and instance segmentation by utilizing the updated semantic query vector and instance query vector to obtain a semantic segmentation result and an instance segmentation result. According to the method, various segmentation tasks on various types of document images can be processed, and a corresponding segmentation result can be output by taking any document image and segmentation task prompt as input.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Course data intelligent multi-dimensional retrieval system based on deep learning

The invention discloses a course data intelligent multi-dimensional retrieval system based on deep learning, and relates to the technical field of course retrieval. The course data retrieval platform is in communication connection with a knowledge graph construction module, a user intention analysis module, a user portrait construction module, a personalized recommendation engine module and a retrieval display module, and all the modules are in electric signal connection; the knowledge graph construction module is used for collecting course data from multiple sources and constructing a course domain knowledge graph. According to the natural language processing technology based on deep learning, deep semantics queried by a user can be deeply analyzed, fuzzy or implicit requirements can be understood, limitation of traditional keyword matching is broken through, intent features and entity relationships can be extracted by combining a knowledge graph, specific entities and relationships queried by the user can be accurately mapped, and user experience is improved. Therefore, a more accurate retrieval result is provided, and personalized requirements of users are met.
Owner:CHANGCHUN INST OF ELECTRONIC TECH

Data analysis method and system and storage medium

ActiveCN119557424AImprove the effectiveness of analytical processingimprove organizationSemantic analysisBiological modelsTheoretical computer scienceData profiling
The invention discloses a data analysis method and system and a storage medium, and is applied to the field of natural language processing. The method comprises the steps of obtaining a natural language input by a user; constructing a semantic data model for converting the natural language into a semantic query statement; combining the semantic data model with a user-defined rule to construct a semantic parser; inputting the natural language into the semantic parser for parsing to obtain a semantic query statement; inputting the semantic query statement into a semantic corrector for correction to obtain a target semantic query statement; converting the target semantic query statement into a structured query statement through a semantic translator; and inputting the structured query statement into the database for query to obtain a query result.
Owner:CETC BIGDATA RES INST CO LTD

Information retrieval system and method based on semantic normalization

The invention discloses an information retrieval system and method based on semantic normalization, and relates to the technical field of artificial intelligence information, and the method comprises the steps: collecting a semantic query record input by a user, carrying out the preliminary semantic analysis, and generating structured data; on the basis of the structured data, entity disambiguation is carried out by utilizing a knowledge graph, abstract classes are generated through a neural network, calibration and dynamic weight adjustment are carried out, and high-confidence entity abstract classes and confidence scores are generated; entity abstract classes and confidence scores are combined with user contexts, an action-value function is calculated through a value network, and an optimal action is selected by utilizing a-greedy algorithm; executing semantic normalization mapping according to the optimal action, and obtaining an intermediate expression by using a meta-symbol dynamic generator; and performing index retrieval and multi-dimensional sorting based on the intermediate expression to generate a sorted retrieval result list. According to the method, the semantic fragmentation problem of multi-modal query is solved, and deep semantic alignment and dynamic weight calibration of heterogeneous data are realized.
Owner:上海笑聘网络科技有限公司

Knowledge graph construction and semantic query control method and system of BIM model

The invention provides a knowledge graph construction and semantic query control method and system of a BIM (Building Information Modeling). Comprising the following steps of BIM model data preparation and attribute extension, IFC data analysis and knowledge graph modeling rule definition, knowledge graph automatic construction tool development, Neo4j graph database storage and management, natural language processing and large model semantic understanding, Cyber query statement generation and IOT interface calling, and query and control of an interaction process. According to the knowledge graph construction and semantic query control method for the BIM model, the BIM model is converted into the knowledge graph, and unified query and control from building space information to semantic level are realized by utilizing a natural language processing technology and large model capability.
Owner:BEIJING YUNMO SOFTWARE TECHNOLOGY CO LTD

Knowledge base management system and enhancement method

ActiveCN120525039ASemantic analysisKnowledge representationKnowledge base management systemsSemantics
The invention discloses a knowledge base management system and an enhancement method, and belongs to the technical field of data processing, and the method specifically comprises the steps: obtaining user query information containing a plurality of semantic elements, and determining an IT service scene according to the semantic elements and a pre-constructed IT service knowledge graph; dividing query information into a high-priority semantic information area and a low-priority semantic information area according to the dimension of the knowledge base; core knowledge is quickly positioned based on the high-priority semantic information region, and a retrieval result is perfected in combination with the low-priority semantic information region; if the semantic element has multiple semantics, triggering multi-semantic query; according to the method, the accuracy and efficiency of IT service knowledge retrieval and semantic understanding are effectively improved, and the application value of the knowledge base is enhanced.
Owner:SHANGHAI SUQING SOFTWARE CO LTD +1

Multi-modal retrieval method and system based on lightweight knowledge graph and index table

The invention belongs to the technical field of artificial intelligence and information retrieval, and provides a multi-modal retrieval method and system based on a lightweight knowledge graph and an index table, and the method comprises the steps: obtaining multi-modal source data, and extracting a structured semantic tag set; constructing a lightweight knowledge graph and a metadata index table; analyzing a natural language query input by a user to obtain a semantic query vector and a keyword set, executing semantic retrieval in the knowledge graph to obtain a text candidate result, and executing keyword matching in the metadata index table to obtain a non-text candidate result; for each non-text meta record, fusing the cross-modal similarity between the non-text meta record and the text candidate result, performing index matching on an original score and a graph semantic evidence score, calculating a comprehensive correlation score, and performing reordering; and generating a natural language answer containing a non-text record link according to a reordering result. The method is suitable for efficient cross-modal knowledge retrieval in a high-security and low-resource scene.
Owner:AECC SICHUAN GAS TURBINE RES INST

Carbon emission calculation method and system for railway infrastructure construction

The invention relates to the technical field of carbon emission accounting, and particularly discloses a carbon emission calculation method and system for railway infrastructure construction, and the method comprises the steps: firstly, calling basic data of a railway infrastructure from a background database and corresponding carbon emission which is verified to be real to construct a reference sample set; and carrying out embedded coding and dynamic semantic search on the basic data of the to-be-verified railway infrastructure uploaded by the user and each reference sample by adopting a data processing technology based on deep learning, so as to query response information based on the semantic query between the to-be-verified basic data and each reference sample. And the reasonable carbon emission amount of the railway infrastructure to be verified is intelligently estimated, and whether the total carbon emission amount of the railway infrastructure to be verified uploaded by the user is true or not is judged based on the reasonable carbon emission amount of the railway infrastructure to be verified. According to the method, rapid and accurate calculation and verification of the carbon emission in the railway infrastructure construction process can be realized, false declaration is avoided, and the authenticity and reliability of the carbon emission data are improved.
Owner:CHANGAN UNIV +1

Natural language query method and device

The embodiment of the invention discloses a natural language query method and device. According to the embodiment of the invention, after the natural language query statement is received, the natural language query statement is input into the pre-trained large-scale text embedding model capable of better capturing the semantic and context relationship, and the corresponding intention semantic query vector is obtained; the method comprises the steps that firstly, an intention semantic query vector is obtained, then multiple intention semantic vectors are recalled from a preset intention semantic vector database according to the intention semantic query vector, the similarity between the intention semantic query vector and all the intention semantic vectors is determined to determine a target intention type, and finally feedback information is determined according to a natural language query statement and the target intention type. According to the embodiment of the invention, a large-scale text embedding model is used, the context information can be incorporated into the intention recognition process, and the accuracy of the target intention type is improved. The feedback information is determined according to the natural language query statement and the target intention type, and the accuracy of the feedback information can be improved. And meanwhile, the security of internal data can be ensured without interaction with external data.
Owner:RAJAX NETWORK &TECHNOLOGY (SHANGHAI) CO LTD

Text2SQL cue word index rewriting method, system and equipment for realizing retrieval enhancement and medium

The invention provides a Text2SQL cue word index rewriting method and system for achieving retrieval enhancement and an equipment medium, and belongs to the technical field of artificial intelligence. The method comprises the following steps that statistics is conducted on user-defined index names, calculation methods are determined and described through a natural language, and a knowledge base representing the mapping relation between the user-defined index names and the calculation methods is established; importing the mapping relation into an inverted retrieval library, constructing the user-defined index names into vectors through a word embedding model, and importing the vectors into a vector retrieval library; obtaining user input, comparing the user input with respective defined index names or performing self-defined index name matching according to a semantic query vector retrieval library; and querying the inverted retrieval library, matching a calculation method, adding the calculation method into cue words and feeding back the cue words to the large language model. According to the method, the knowledge base and the retrieval base are established through statistics and analysis of user-defined index names and calculation methods, and accurate matching of user input and automatic adding of the calculation methods are achieved.
Owner:INSPUR YUNZHOU (SHANDONG) IND INTERNET CO LTD

Water conservancy intelligent question-answering system and method based on knowledge enhancement and data driving

The invention discloses a water conservancy intelligent question-answering system and method based on knowledge enhancement and data driving, and aims at water conservancy business structured and unstructured data query, through loop optimization driven by positive and negative examples, precise classification of secondary intentions of water conservancy problems is realized, knowledge questions and answers, data query and professional water conservancy subclass questions and answers can be distinguished, and the system and the method can be applied to water conservancy business. And the semantic analysis efficiency is improved. Aiming at the problem of low query accuracy of retrieval enhancement generation in the field of water conservancy, a differential water conservancy knowledge base oriented to professional books, industrial standards and laws and regulations is constructed, local and networking information is processed through a multi-source knowledge fusion and conflict resolution mechanism, and the accuracy, interpretability and traceability of question and answer content are improved. Aiming at the problems of complex operation and low semantic query accuracy in query of massive water conservancy business data and monitoring data, multi-layer constraint Text-to-SQL conversion is performed based on water conservancy business knowledge, high-precision semantic query and automatic visual output of water conservancy structured data are realized, and query efficiency is improved.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Self-adaptive control system and method of plasma generator

The invention relates to the technical field of plasma generators, and particularly discloses a self-adaptive control system and method of a plasma generator, and the method comprises the steps: carrying out the feature extraction of a voltage time sequence data set, a current time sequence data set and a plasma density time sequence data set through employing a data analysis and coding technology based on deep learning, meanwhile, time sequence feature extraction is carried out on curves of voltage, current and plasma density which correspond to each control mode and change along with time; therefore, the optimal control mode of the target plasma generator is intelligently screened out according to the fast scanning semantic query representation between the multivariable time sequence implicit cooperation feature of the plasma generator and the multivariable time sequence implicit coding feature of each control mode. By means of the mode, the future parameter change trend can be predicted more accurately, the optimal control mode can be intelligently screened out, and compared with a traditional threshold value judgment method, early warning can be carried out in advance before the parameters are close to but do not exceed the safety range.
Owner:江苏神州半导体科技股份有限公司

Large language model semantic query acceleration method based on sparse KV Cache index

The invention discloses a large language model semantic query acceleration method based on a sparse KV Cache index. The method comprises a KV Cache semantic pruning strategy based on an attention mechanism and a set of asynchronous pipeline reasoning architecture with overlapped calculation and I / O. According to the method, the attention sparsity characteristic of the large language model in the reasoning stage and the asynchronous transmission capacity between the Host memory and the GPU video memory are fully utilized, calculation redundancy and video memory occupation in repetitive semantic query are greatly reduced, and high-throughput, low-delay and high-performance batch semantic data processing service is provided. Through a mechanism for mapping a static text into a compressed semantic index and combining a prefix cache technology in a reasoning process to realize state multiplexing, high-performance reasoning acceleration and high-efficiency storage compression are provided for a data-intensive semantic analysis task in a resource-constrained environment.
Owner:EAST CHINA NORMAL UNIV

Retail industry search system and method based on large language model

The invention relates to the technical field of retail industry search, and particularly discloses a retail industry search system and method based on a large language model, which are characterized in that after a target commodity query statement input by a user is acquired, a natural language processing technology based on deep learning is adopted to carry out retrieval intention extension on the target commodity query statement; according to the method, more abundant query content description is generated, after the user confirms that the query content description is correct, context semantic feature extraction and fine-grained semantic query interaction are carried out on the query content description and the description information of the alternative commodities, and therefore whether the alternative commodities meet the retrieval requirement of the user or not is intelligently recognized. Through the mode, the query intention of the user can be more accurately understood, and the commodity information highly related to the query intention can be provided, so that the shopping experience and the search efficiency of the user are remarkably improved.
Owner:SHIXIANG INTELLIGENT TECH (SUZHOU) CO LTD

Detection system for natural land resources

The invention discloses a detection system for natural land resources, and relates to the technical field of resource detection, the detection system comprises a data preprocessing module, a fusion space-time diagram construction module, a multi-target enhancement module and a feedback module, an entropy law is combined with a semantic space-time diagram index, quantitative modeling of an ecological law is realized, and the real-time performance of the system is improved. Natural-human collaborative intervention simulation under multiple time scales, time-space semantic query response time improvement, prediction precision improvement and interdisciplinary fusion are supported, the entropy law of ecological economics is combined with time-space diagram index, the limitation that a traditional model only pays attention to physical indexes is broken through, ecological-economic balance is achieved through an entropy weight method and Monte Carlo simulation, and the prediction precision is improved. According to the method, self-adaptive decision making is supported, a perception-decision-execution integrated platform is constructed based on the real-time updating capability of space-time diagram indexes, a full-chain solution from data collection to dynamic optimization can be provided for natural resource intelligent management, a prediction model is combined with entropy increase constraint, and the ecological economic cost is quantified.
Owner:WENZHOU YUJIAN ECOLOGICAL TECH CO LTD

Operation and maintenance fault processing method and device based on large model and knowledge graph, equipment and medium

The invention discloses an operation and maintenance fault processing method and device based on a large model and a knowledge graph, equipment and a medium, and relates to the field of operation and maintenance fault diagnosis processing, and the method comprises the steps: constructing an operation and maintenance fault processing domain ontology, and inputting historical operation and maintenance fault information and the operation and maintenance fault processing domain ontology into a preset large model to obtain a target triple, obtaining an operation and maintenance fault processing knowledge graph based on the target triple; performing dependency syntactic analysis on the historical operation and maintenance fault information to obtain a dependency syntactic tree, processing the dependency syntactic tree based on the operation and maintenance fault processing knowledge graph to obtain a first dependency syntactic tree, and obtaining a fault processing question and answer template library by using the first dependency syntactic tree; determining a second dependency syntax tree based on the operation and maintenance fault information to be processed, determining a question and answer template corresponding to the second dependency syntax tree from a question and answer template library, and instantiating the question and answer template to obtain a semantic query graph; and determining a target sub-graph corresponding to the semantic query graph from the knowledge graph, and obtaining an operation and maintenance fault processing result based on the target sub-graph.
Owner:SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD

CAD drawing instant positioning method and device based on spatial index analysis

The invention discloses a CAD drawing instant positioning method and device based on spatial index analysis, and relates to the related technical field of CAD drawing positioning, and the method comprises the steps: carrying out the multi-stage splitting identification of a multi-version target CAD drawing; performing associated indexing on the drawing version information, the drawing layer information and the drawing component set; semantic analysis and spatial association are carried out on the drawing text annotations; embedding and associating the drawing component space semantic tag set into a component-layer-drawing three-level association graph; performing matching indexing on the drawing semantic query request based on the drawing spatial index mapping table; and inquiring a topology path based on the component to carry out instant positioning and visual feedback. The technical problems that in the prior art, complex spatial relations and semantic information in the drawings are difficult to effectively process, and multi-version CAD drawings are low in retrieval efficiency, insufficient in instantaneity and inaccurate in positioning are solved, and the technical effect of improving the retrieval efficiency, query instantaneity and positioning accuracy of the multi-version drawings is achieved.
Owner:BEIJING GUANGLIANDA YUNTU DREAM TECH CO LTD

Code review method, system and device, storage medium and program product

The invention discloses a code review method, system and device, a storage medium and a program product, and the method comprises the steps: cleaning a to-be-reviewed code snippet, and obtaining an incremental code snippet and position information; vectorizing the incremental code snippets; semantic query is conducted on the vectorized incremental code snippet data based on an ES database according to the cosine law, development rules of similar semantics are obtained and ranked from high to low according to similarity values, and a preset number of first several snippets are obtained; recombining cue words, wherein the recombining cue words comprise incremental code snippets and a preset number of development rules; and sending the recombined cue word to a general generative large model to obtain an examination suggestion. The code snippets to be examined are pushed to the gilab warehouse by a developer, and are cleaned by the gilab warehouse through webhook triggering. According to the review method, the whole process is automatic, the review efficiency is high, review can be conducted according to the development rules in the team, knowledge sharing is achieved, the review result is objective, and the problem that the text exceeds the upper limit is avoided.
Owner:BEIJING ZHUZHE INFORMATION TECHNOLOGY CO LTD

Mine environment risk multi-modal analysis and early warning decision-making method

The invention relates to the technical field of mine environment risks, and discloses a mine environment risk multi-modal analysis and early warning decision-making method, which comprises the following steps of: performing time and space reference alignment on multi-source observation data, constructing a unified spatio-temporal data set, and establishing a troposphere disturbance model to realize observation disturbance coupling. And constructing a physical evolution operator and a rainfall-driven external input operator based on a seepage mechanical relationship, and generating a state evolution mechanism. Semantic direction parameters are generated by mapping semantic query information to a target attention dimension, and a lagging propagation operator is constructed by setting a rainstorm ending moment as a starting point. And determining a non-regular spectrum transition index and a peak lag moment through the non-regularity measurement and the dynamic change rate of each lag propagation operator, and setting a reference threshold value based on the spectrum transition index of a historical non-risk time period. Finally, when the early warning intensity meets the condition, early warning is output, and a query result is generated in combination with the lagging propagation operator and the semantic direction parameters.
Owner:CHINA UNICOM (SHANDONG) IND INTERNET CO LTD

Meteorological intelligent question-answering system and method based on domain knowledge graph and dynamic optimization

The invention discloses a meteorological intelligent question-answering system and method based on a domain knowledge graph and dynamic optimization, the system comprises a multi-source fusion training module, a meteorological knowledge graph and other modules, and the term analysis accuracy is improved through multi-source data training, knowledge graph supporting and dynamic optimization; according to the method, questions and answers are realized through multi-modal input analysis, meteorological element analysis and data feedback optimization. Compared with a traditional NLP model, the meteorological term analysis accuracy is improved from 68.2% to 92.7%, the composite query understanding bottleneck is broken through, three-layer nested semantic query is supported, the model new term adaptation period is shortened to be within 2 hours, the timeliness is improved by 10 times, meteorological element correlation analysis is achieved, and powerful support is provided for disaster reduction decision making.
Owner:贵州省气象数据中心

Road continuous longitudinal slope section traffic safety knowledge graph construction method

The invention belongs to the crossing field of traffic engineering and information technology, and discloses a highway continuous longitudinal slope section traffic safety knowledge graph construction method. According to the method, road section features, traffic flow, historical accidents and environmental data are integrated, and a multi-source data set is constructed through cleaning and standardization processing; defining a road section, an accident, an environment and a vehicle entity, and constructing a multi-level knowledge graph comprising a static topology layer, a dynamic attribute layer and a probabilistic reasoning layer; knowledge triples are extracted by using a natural language processing technology, and real-time risk assessment and early warning are realized by dynamically fusing association logic of gradient, environment and accident data in combination with a rule engine; a graph database is adopted to store the graph, and semantic query and dynamic updating are supported. The method breaks through the limitation of traditional single data source analysis, solves the problem of coupling risk assessment of dynamic environmental factors and static features under complex terrains through multi-source fusion and probabilistic reasoning mechanisms, and remarkably improves the traffic safety risk prediction precision.
Owner:GANSU PROVINCE TRANSPORTATION PLANNING SURVEY & DESIGN INST +1

Service recommendation decision-making method based on large model retrieval enhancement generation and related equipment

The invention provides a service recommendation decision-making method based on large model retrieval enhancement generation and related equipment. The method comprises the following steps: acquiring an unstructured service demand; calling a large language model to perform semantic analysis and extension on the service demand, and generating an unstructured extended semantic text; encoding the extended semantic text to obtain a semantic query vector; querying a service description of each pre-stored service from a service database, respectively calculating a first similarity score between the semantic query vector and the service description, expanding a second similarity score between each keyword in the semantic text and the service description, and screening out a candidate service set having semantic association with the service demand; all corresponding application programming interfaces in the candidate service set are determined, and a final application programming interface set is screened out and recommended according to the use frequency of the various application programming interfaces, the semantic similarity among the labels and the semantic query vectors. According to the method and the device, the API recommendation accuracy is improved.
Owner:CHINA NUCLEAR POWER ENGINEERING COMPANY LTD +1

Three-dimensional scene semantic query method based on hierarchical semantic field

The invention discloses an open vocabulary three-dimensional scene semantic query method based on a hierarchical semantic field, and the method comprises the steps: extracting instance masks of a sub-part, a part and an overall hierarchy through a zero sample segmentation model SAM, and generating a pixel-level multi-granularity semantic feature map in combination with a CLIP encoder; a neural radiation field architecture is improved, a multi-resolution hash grid and a multi-head multi-layer perceptron network are designed, efficient mapping from three-dimensional space coordinates to multi-level semantic features is realized, and region contrast loss and feature consistency loss are introduced to constrain cross-view semantic consistency; in the reasoning stage, the optimal hierarchy is adaptively selected by calculating the similarity between the text features and the rendering semantic features, and a high-precision semantic segmentation result is generated. According to the method, the problem of feature blurring caused by the fact that a traditional method depends on image block cutting is solved, the problems of low semantic query precision, insufficient multi-granularity understanding and cross-view conflicts in an open vocabulary scene are solved, and a natural language driven solution with fine granularity and high robustness is provided for three-dimensional scene interaction.
Owner:TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL +1

Automated ontology creation

Class definitions for an ontology of a domain are determined using a materialized instance graph, where the ontology is used for semantic query execution, automated analytical reasoning, or for machine learning. A plurality of instances graphs for a respective plurality of domain instances are received. A materialized instance graph is generated from the plurality of instance graphs. One or more communities represented in the materialized instance graph are determined. Properties associated with respective communities of the one or more communities are determined. Class definitions are generated, where a class corresponds to a community of the one or more communities and at least a portion of properties associated with the community. Class definitions are assigned to the ontology for the domain.
Owner:SAP SE

Video semantic question-answering system oriented to monitoring scene

The invention discloses a video semantic question-answering system for a monitoring scene, and the system comprises a video collection module which is composed of a plurality of cameras and forms a monitoring network; the video preprocessing module is used for optimizing original video data through three-stage processing of key frame extraction, noise reduction and time alignment; the multi-modal feature extraction module comprises a video feature extraction channel and a text feature extraction channel; the multi-modal interactive reasoning module adopts a cross-modal neural network model; the answer generation module is used for outputting corresponding structured answer branches and natural language branches based on joint representation prediction answers; and an interaction and visualization interface module. The invention provides a video semantic question-answering system oriented to a monitoring scene, which supports a user to carry out semantic query on monitoring video contents in a natural language form, and the system automatically analyzes problems, analyzes video data and generates structured or natural language answers. And the combined understanding and response capability of open semantics, dynamic behaviors and attribute states is realized.
Owner:HAIJI TECHNOLOGY (SHENZHEN) CO LTD

Building engineering management system and management method thereof

The invention relates to the technical field of engineering management, and particularly discloses a building engineering management system and a management method thereof, and the method comprises the steps: carrying out the semantic analysis of electronic data of a target labor service worker through employing a data processing technology based on deep learning, so as to extract the identity information feature of the labor service worker, and meanwhile, in combination with pre-formulated construction requirement rules, semantic query response coding is performed on the identity information of the labor service personnel and a large number of construction requirement rules, so that a potential matching relationship between the labor service personnel and the construction project is mined, and intelligent assessment of the adaptability of the labor service personnel is realized. According to the method, whether the labor service personnel meet the specific requirements of the construction project or not can be evaluated more comprehensively and accurately, and the construction problem caused by insufficient skills or lack of experience of the labor service personnel is effectively avoided.
Owner:ZHEJIANG CITIC TESTING CO LTD

Urban old city community toughness evaluation method and system

The invention relates to the field of intelligent evaluation, and particularly discloses an urban old city community toughness evaluation method and system, and the method comprises the steps: firstly obtaining the multi-modal data of the toughness of a to-be-evaluated old city community, extracting the multi-modal characterization characteristics of the data of the toughness of the to-be-evaluated old city community based on a deep learning technology, and meanwhile, carrying out the evaluation of the toughness of the to-be-evaluated old city community; the method comprises the following steps: firstly, extracting a preset number of multi-modal characterization characteristics of evaluated old city communities and corresponding toughness level labels from a background toughness database, so as to construct an association representation of the toughness data characteristics of the evaluated old city communities and an evaluation result; through rapid scanning semantic query of toughness data characteristics of the old city community to be evaluated and the evaluated old city community, toughness grade evaluation of the old city community to be evaluated is realized. Thus, through effective utilization of historical evaluation cases, the problem of insufficient similarity and difference analysis among different communities can be effectively solved, confusion among categories is reduced, and the consistency and accuracy of evaluation results are improved.
Owner:BEIJING JIANGONG ARCHITECTURAL DESIGN & RES INST