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Configuration knowledge modeling of customizable products based on semantic web technologies 被引量:1
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作者 叶艳 杨东 江志斌 《Journal of Southeast University(English Edition)》 EI CAS 2006年第3期418-422,共5页
In order to solve the problem of modeling product configuration knowledge at the semantic level to successfully implement the mass customization strategy, an approach of ontology-based configuration knowledge modeling... In order to solve the problem of modeling product configuration knowledge at the semantic level to successfully implement the mass customization strategy, an approach of ontology-based configuration knowledge modeling, combining semantic web technologies, was proposed. A general configuration ontology was developed to provide a common concept structure for modeling configuration knowledge and rules of specific product domains. The OWL web ontology language and semantic web rule language (SWRL) were used to formally represent the configuration ontology, domain configuration knowledge and rules to enhance the consistency, maintainability and reusability of all the configuration knowledge. The configuration knowledge modeling of a customizable personal computer family shows that the approach can provide explicit, computerunderstandable knowledge semantics for specific product configuration domains and can efficiently support automatic configuration tasks of complex products. 展开更多
关键词 knowledge modeling semantic web technology product configuration mass customization
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A Knowledge Model System for Wheat Production Management 被引量:7
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作者 ZHU Yan CAO Wei-Xing +2 位作者 DAI Ting-Bo TIAN Yong-Chao YAO Xia 《Pedosphere》 SCIE CAS CSCD 2007年第2期172-181,共10页
A knowledge model with temporal and spatial characteristics for the quantitative design of a cultural pattern in wheat production, using systems analysis and dynamic modeling techniques, was developed for wheat manage... A knowledge model with temporal and spatial characteristics for the quantitative design of a cultural pattern in wheat production, using systems analysis and dynamic modeling techniques, was developed for wheat management, as a decision-making tool in digital farming. The fundamental relationships and algorithms of wheat growth indices and management criteria to cultivars, ecological environments, and production levels were derived from the existing literature and research data to establish a knowledge model system for quantitative wheat management using Visual C^++. The system designed a cultural management plan for general management guidelines and crop regulation indices for timecourse control criteria during the wheat-growing period. The cultural management plan module included submodels to determine target grain yield and quality, cultivar choice, sowing date, population density, sowing rate, fertilization strategy, and water management, whereas the crop regulation indices module included submodels for suitable development stages, dynamic growth indices, source-sink indices, and nutrient indices. Ewluation of the knowledge model by design studies on the basis of data sets of different eco-sites, cultiwrs, and soil types indicated a favorable performance of the model system in recommending growth indices and management criteria under diverse conditions. Practical application of the knowledge model system in comparative field experiments produced yield gains of 2.4% to 16.5%. Thus, the presented knowledge model system overcame some of the difficulties of the traditional wheat management patterns and expert systems, and laid a foundation for facilitating the digitization of wheat management. 展开更多
关键词 expert system knowledge model quantitative decision-making regulation index WHEAT
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A Dynamic Knowledge Model for Design of Suitable Sowing Date and Sowing Rate in Winter Wheat 被引量:4
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作者 ZHU Yan, CAO Wei-xing, JIANG Dong and DAI Ting-bo(Key Laboratory of Crop Growth Regulation , Ministry of Agriculture /Nanjing Agricultural University,Nanjing 210095 , P. R . China) 《Agricultural Sciences in China》 CAS CSCD 2002年第10期1116-1124,共9页
Based on research concerning dynamic relationships of winter wheat growth to environments and production conditions, a winter wheat model for selecting suitable sowing date, population density and sowing rate under di... Based on research concerning dynamic relationships of winter wheat growth to environments and production conditions, a winter wheat model for selecting suitable sowing date, population density and sowing rate under different varieties, spatial and temporal environments was developed. Case studies on sowing date with the data sets of five different eco-sites, three climatic years and soil fertility levels, and on population density and sowing rate with the data sets of two different variety types, three different soil types, soil fertility levels, sowing dates and grain yield levels indicate a good model performance for decision-making. 展开更多
关键词 Winter wheat Sowing date Population density Sowing rate knowledge model
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A Dynamic Knowledge Model for Nitrogen Fertilizationin Wheat Management 被引量:4
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作者 ZHU Yan, CAO Wei-xing, DAI Ting-bo and SUN Chuan-fan(Key Laboratory of Crop Growth Regulation , Ministry of Agriculture/Nanjing Agricultural University , Nanjing 210095 , P.R.China) 《Agricultural Sciences in China》 CAS CSCD 2003年第8期850-858,共9页
By analyzing and extracting the research progress on nitrogen fertilization in wheat, a dynamic knowledge model for management decision-making on total nitrogen rate, ratios of organic to inorganic and of basal to dre... By analyzing and extracting the research progress on nitrogen fertilization in wheat, a dynamic knowledge model for management decision-making on total nitrogen rate, ratios of organic to inorganic and of basal to dressing nitrogen under different environments and cultivars in wheat was developed with principle of nutrient balance and by integrating the quantitative effects of grain yield and quality targets, soil characters, variety traits and water management levels. Case studies on the nitrogen fertilization model with the data sets of different eco-sites, cultivars, soil fertility levels, grain yield and quality targets and water management levels indicate a good performance of the model system in decision-making and wide applicability. 展开更多
关键词 WHEAT Nutrient balance Nitrogen fertilization management knowledge model Digital decision-making
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A Knowledge Model-and Growth Model-Based Decision Support System for Wheat Management 被引量:3
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作者 ZHU Yan, CAO Wei-xing, WANG Qi-meng, TIAN Yong-chao and PAN Jie(Key Laboratory of Crop Growth Regulation , Ministry of Agriculture/Nanjing Agricultural University, Nanjing 210095 , P. R. China) 《Agricultural Sciences in China》 CAS CSCD 2003年第11期1212-1220,共9页
By applying the system analysis principle and mathematical modeling technique to knowledge expression system for crop cultural management, the fundamental relationships and quantitative algorithms of wheat growth and ... By applying the system analysis principle and mathematical modeling technique to knowledge expression system for crop cultural management, the fundamental relationships and quantitative algorithms of wheat growth and management indices to variety types, ecological environments and production levels were analysed and extracted, and a dynamic knowledge model with temporal and spatial characters for wheat management(WheatKnow)was developed. By adopting the soft component characteristics as non language relevance , re-utilization and portable system maintenance. and by further integrating the wheat growth simulation model(WheatGrow)and intelligent system for wheat management, a comprehensive and digital knowledge model, growth model and component-based decision support system for wheat management(MBDSSWM)was established on the platforms of Visual C++ and Visual Basic. The MBDSSWM realized the effective integration and coupling of the prediction and decision-making functions for digital crop management. 展开更多
关键词 Wheat management knowledge model Growth model Soft component Decision support system
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Effects of the information–knowledge–attitude–practice nursing model combined with predictability intervention on patients with cerebrovascular disease 被引量:12
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作者 Hong-Liang Huo Yuan-Yuan Gui +2 位作者 Chun-Miao Xu Yan Zhang Qiang Li 《World Journal of Clinical Cases》 SCIE 2022年第20期6803-6810,共8页
BACKGROUND Cerebrovascular disease(CVD)poses a serious threat to human health and safety.Thus,developing a reasonable exercise program plays an important role in the long-term recovery and prognosis for patients with ... BACKGROUND Cerebrovascular disease(CVD)poses a serious threat to human health and safety.Thus,developing a reasonable exercise program plays an important role in the long-term recovery and prognosis for patients with CVD.Studies have shown that predictive nursing can improve the quality of care and that the information–knowledge–attitude–practice(IKAP)nursing model has a positive impact on patients who suffered a stroke.Few studies have combined these two nursing models to treat CVD.AIM To explore the effect of the IKAP nursing model combined with predictive nursing on the Fugl–Meyer motor function(FMA)score,Barthel index score,and disease knowledge mastery rate in patients with CVD.METHODS A total of 140 patients with CVD treated at our hospital between December 2019 and September 2021 were randomly divided into two groups,with 70 patients in each.The control group received routine nursing,while the observation group received the IKAP nursing model combined with predictive nursing.Both groups were observed for self-care ability,motor function,and disease knowledge mastery rate after one month of nursing.RESULTS There was no clear difference between the Barthel index and FMA scores of the two groups before nursing(P>0.05);however,their scores increased after nursing.This increase was more apparent in the observation group,and the difference was statistically significant(P<0.05).The rates of disease knowledge mastery,timely medication,appropriate exercise,and reasonable diet were significantly higher in the observation group than in the control group(P<0.05).The satisfaction rate in the observation group(97.14%)was significantly higher than that in the control group(81.43%;P<0.05).CONCLUSION The IKAP nursing model,combined with predictive nursing,is more effective than routine nursing in the care of patients with CVD,and it can significantly improve the Barthel index and FMA scores with better knowledge acquisition,as well as produce high satisfaction in patients.Moreover,they can be widely used in the clinical setting. 展开更多
关键词 Information–knowledge–attitude–practice nursing model Predictive nursing Cerebrovascular disease Barthel index Fugl–Meyer motor function score Disease knowledge mastery rate
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Boosting multi-features with prior knowledge for mini unmanned helicopter landmark detection
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作者 Qin-yuan REN Ping LI Bo HAN 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2008年第2期256-261,共6页
Without sufficient real training data,the data driven classification algorithms based on boosting method cannot solely be utilized to applications such as the mini unmanned helicopter landmark image detection.In this ... Without sufficient real training data,the data driven classification algorithms based on boosting method cannot solely be utilized to applications such as the mini unmanned helicopter landmark image detection.In this paper,we propose an approach which uses a boosting algorithm with the prior knowledge for the mini unmanned helicopter landmark image detection.The stage forward stagewise additive model of boosting is analyzed,and the approach how to combine it with the prior knowledge model is presented.The approach is then applied to landmark image detection,where the multi-features are boosted to solve a series of problems,such as rotation,noises affected,etc.Results of real flight experiments demonstrate that for small training examples the boosted learning system using prior knowledge is dramatically better than the one driven by data only. 展开更多
关键词 BOOSTING Prior knowledge model Landmark detection
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Education Knowledge System Combination Model Based on the Components
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作者 CHEN Lei LI Dehua +1 位作者 LI Xiaojian WU Chunxiang 《Wuhan University Journal of Natural Sciences》 CAS 2007年第6期1013-1018,共6页
Resources are the base and core of education information, but current web education resources have no structure and it is still difficult to reuse them and make them can be self assembled and developed continually. Ac... Resources are the base and core of education information, but current web education resources have no structure and it is still difficult to reuse them and make them can be self assembled and developed continually. According to the knowledge structure of course and text, the relation among knowledge points, knowledge units from three levels of media material, we can build education resource components, and build TKCM (Teaching Knowledge Combination Model) based on resource components. Builders can build and assemble knowledge system structure and make knowledge units can be self assembled, thus we can develop and consummate them continually. Users can make knowledge units can be self assembled and renewed, and build education knowledge system to satisfy users' demand under the form of education knowledge system. 展开更多
关键词 knowledge unit components education knowledge system knowledge combination model
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Knowledge-Based Multifaceted Modeling Methodology for Open Complex Giant Systems
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作者 Qin, Shiyin 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 1997年第3期34-42,共9页
In this paper, the structure characteristics of open complex giant systems are concretely analysed in depth, thus the view and its significance to support the meta synthesis engineering with manifold knowledge models... In this paper, the structure characteristics of open complex giant systems are concretely analysed in depth, thus the view and its significance to support the meta synthesis engineering with manifold knowledge models are clarified. Furthermore, the knowledge based multifaceted modeling methodology for open complex giant systems is emphatically studied. The major points are as follows: (1) nonlinear mechanism and general information partition law; (2) from the symmetry and similarity to the acquisition of construction knowledge; (3) structures for hierarchical and nonhierarchical organizations; (4) the integration of manifold knowledge models; (5) the methodology of knowledge based multifaceted modeling. 展开更多
关键词 knowledge based multifaceted modeling Open complex giant systems Metasynthesis engineering Interpretive structural modeling.
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Information Comprehension Based on the New Knowledge Acquired by Cognitive Subject as the Fourth Dimension Set
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作者 Yanzhu Hu Yu Ren Xiaohong Wang 《Chinese Business Review》 2005年第4期68-73,共6页
On the basis of studying general comprehension model of information, this paper puts forward the Four Dimensions Set Information Comprehension Model (FDSICM) based on regarding the new knowledge acquired by cognitiv... On the basis of studying general comprehension model of information, this paper puts forward the Four Dimensions Set Information Comprehension Model (FDSICM) based on regarding the new knowledge acquired by cognitive subject as the fourth dimension set. Making use of the Four Dimension Set Information Comprehension Model (FDSICM), this paper analyzes the information attributes and expatiates from three levels the comprehension of the information meaning. 展开更多
关键词 information cognitive subject knowledge comprehension model
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Application of Binomial Option Pricing Model to the Appraisal of Knowledge Management Investment
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作者 Jing Sui Jinsheng He Jiancheng Yu 《Chinese Business Review》 2005年第3期1-5,共5页
This paper views knowledge management (KM) investment from the angle of real options, and demonstrates the utility of the real options approach to KM investment analysis. First, KM project has characteristics of unc... This paper views knowledge management (KM) investment from the angle of real options, and demonstrates the utility of the real options approach to KM investment analysis. First, KM project has characteristics of uncertainty, irreversibility and choice of timing, which suggests that we can appraise KM investment by real options theory. Second, the paper analyses corresponding states of real options in KM and finance options. Then, this paper sheds light on the way to the application of binomial pricing method to KM investment model, which includes modeling and conducting KM options. Finally, different results are shown of using DCF method and binomial model of option evaluation via a case. 展开更多
关键词 knowledge management real options binomial option pricing model project appraisal
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Large Knowledge Model:Perspectives and Challenges
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作者 Huajun Chen 《Data Intelligence》 EI 2024年第3期587-620,共34页
Humankind's understanding of the world is fundamentally linked to our perception and cognition,with human languages serving as one of the major carriers of world knowledge.In this vein,Large Language Models(LLMs)l... Humankind's understanding of the world is fundamentally linked to our perception and cognition,with human languages serving as one of the major carriers of world knowledge.In this vein,Large Language Models(LLMs)like ChatGPT epitomize the pre-training of extensive,sequence-based world knowledge into neural networks,facilitating the processing and manipulation of this knowledge in a parametric space.This article explores large models through the lens of"knowledge".We initially investigate the role of symbolic knowledge such as Knowledge Graphs(KGs)in enhancing LLMs,covering aspects like knowledge-augmented language model,structure-inducing pretraining,knowledgeable prompts,structured CoT,knowledge editing,semantic tools for LLM and knowledgeable Al agents.Subsequently,we examine how LLMs can boost traditional symbolic knowledge bases,encompassing aspects like using LLM as KG builder and controller,structured knowledge pretraining,and LLM-enhanced symbolic reasoning.Considering the intricate nature of human knowledge,we advocate for the creation of Large Knowledge Models(LKM),specifically engineered to manage diversified spectrum of knowledge structures.This promising undertaking would entail several key challenges,such as disentangling knowledge base from language models,cognitive alignment with human knowledge,integration of perception and cognition,and building large commonsense models for interacting with physical world,among others.We finally propose a five-"A"principle to distinguish the concept of LKM. 展开更多
关键词 Large Language Model knowledge Graph Large knowledge Model knowledge Representation knowledge Augmentation
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Review on the Work of Agriculture Ontology Research Group 被引量:1
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作者 SU Xiao-lu LI Jing +2 位作者 CUI Yun-peng MENG Xian-xue WANG Yi-qian 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2012年第5期720-730,共11页
This paper introduces efforts and achievements of Agriculture Ontology Service Research Group of Agricultural Information Institute of Chinese Academy of Agriculture Sciences in last 10 years. It summarizes the resear... This paper introduces efforts and achievements of Agriculture Ontology Service Research Group of Agricultural Information Institute of Chinese Academy of Agriculture Sciences in last 10 years. It summarizes the research on ontology construction methodology, ontology management system, ontology application and etc. 展开更多
关键词 agriculture ontology service ontology search knowledge domain model ontology development
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A Practical Approach to Constructing a Geological Knowledge Graph:A Case Study of Mineral Exploration Data 被引量:2
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作者 Qinjun Qiu Bin Wang +3 位作者 Kai Ma Hairong Lü Liufeng Tao Zhong Xie 《Journal of Earth Science》 SCIE CAS CSCD 2023年第5期1374-1389,共16页
Open data initiatives have promoted governmental agencies and scientific organizations to publish data online for reuse.Research of geoscience focuses on processing georeferenced quantitative data(e.g.,rock parameters... Open data initiatives have promoted governmental agencies and scientific organizations to publish data online for reuse.Research of geoscience focuses on processing georeferenced quantitative data(e.g.,rock parameters,geochemical tests,geophysical surveys and satellite imagery)for discovering new knowledge.Geological knowledge is the cognitive result of human knowledge of the spatial distribution,evolution and interaction patterns of geological objects or processes.Knowledge graphs(KGs)can formalize unstructured knowledge into structured form and have been used in supporting decision-making recently.In this paper,we propose a novel framework that can extract the geological knowledge graph(GKG)from public reports relating to a modelling study.Based on the analysis of basic questions answered by geology,we summarize and abstract geological knowledge elements and then explore a geological knowledge representation model with three levels of“geological conceptsgeological entities-geological relations”to describe semantic units of geological knowledge and their logic relations.Finally,based on the characteristics of mineral resource reports,the geological knowledge representation model oriented to“object relationships”and the hierarchical geological knowledge representation model oriented to“process relationships”are proposed with reference to the commonly used geological knowledge graph representation.The research in this paper can provide some implications for the formalization and structured representation of geological knowledge graphs. 展开更多
关键词 mineral resource report geological knowledge knowledge graph ONTOLOGY hierarchical knowledge representation model
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Effect of KAP Intervention Model on Resilience and Cancer-related Fatigue in Patients with Colorectal Cancer Undergoing Chemotherapy 被引量:1
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作者 Hui Zhang 《Journal of Clinical and Nursing Research》 2021年第1期94-96,共3页
Objective:To explore the effect of KAP intervention mode on resilience and cancer-related fatigue in patients with colorectal cancer undergoing chemotherapy.Methods:A prospective randomized trial was conducted.55 pati... Objective:To explore the effect of KAP intervention mode on resilience and cancer-related fatigue in patients with colorectal cancer undergoing chemotherapy.Methods:A prospective randomized trial was conducted.55 patients with colorectal cancer who received routine nursing from February 2018 to February 2019 were included in the control group,and 55 patients who received routine nursing+KAP intervention from March 2019 to March 2020 were included in the observation group.The scores of Resilience Scale and cancer-related fatigue scale(CFS)before and 6 months after intervention were compared between the two groups.Results:After 6 months of intervention,the score of resilience of the two groups was higher than that before intervention,and that of the observation group was higher than that of the control group,the difference was statistically significant(P<0.05);The CFS score of the two groups was lower than that before intervention,and that of the observation group was lower than that of the control group,the difference was statistically significant(P<0.05).Conclusion:KAP intervention model can improve the resilience of patients with colorectal cancer chemotherapy,reduce cancerrelated fatigue. 展开更多
关键词 Colorectal cancer knowledge attitude and practice model Psychological flexibility Cancer related fatigue
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Dictionary,Thesaurus or Ontology? Disentangling Our Choices in the Semantic Web Jungle
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作者 Armando Stellato 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2012年第5期710-719,共10页
The Semantic Web seems finally close to maintaining its promise about a real world-wide graph of interconnected resources. The SPARQL query language and protocols and the Linked Open Data initiative have laid the way ... The Semantic Web seems finally close to maintaining its promise about a real world-wide graph of interconnected resources. The SPARQL query language and protocols and the Linked Open Data initiative have laid the way for endless data endpoints sparse around the globe. However, for the Semantic Web to really happen, it does not suffice to get billions of triples out there: these must be shareable, interlinked and conform to widely accepted vocabularies. While more and more data are converted from already available large knowledge repositories of companies and organizations, the question whether these should be carefully converted to semantically consistent ontology vocabularies or find other shallow representations for their content naturally arises. The danger is to come up with massive amounts of useless data, a boomerang which could result to be contradictory for the success of the web of data. In this paper, I provide some insights on common problems which may arise when porting huge amount of existing data or conceptual schemes (very common in the agriculture domain) to resource description framwork (RDF), and will address different modeling choices, by discussing in particular the relationship between the two main modeling vocabularies offered by W3C: OWL and SKOS. 展开更多
关键词 ontologies THESAURI knowledge modeling linked open data
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An OWL-Based Specification of Database Management Systems
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作者 Sabin C.Buraga Daniel Amariei Octavian Dospinescu 《Computers, Materials & Continua》 SCIE EI 2022年第3期5537-5550,共14页
In the context of a proliferation of DatabaseManagement Systems(DBMSs),we have envisioned and produced an OWL 2 ontology able to provide a high-level machine-processable description of the DBMSs domain.This conceptual... In the context of a proliferation of DatabaseManagement Systems(DBMSs),we have envisioned and produced an OWL 2 ontology able to provide a high-level machine-processable description of the DBMSs domain.This conceptualization aims to facilitate a proper execution of various software engineering processes and database-focused administration tasks.Also,it can be used to improve the decision-making process for determining/selecting the appropriate DBMS,subject to specific requirements.The proposed model describes the most important features and aspects regarding the DBMS domain,including the support for various paradigms(relational,graph-based,key-value,tree-like,etc.),query languages,platforms(servers),plus running environments(desktop,Web,cloud),specific contexts—i.e.,focusing on optimizing queries,redundancy,security,performance,schema vs.schema-less approaches,programming languages/paradigms,and others.The process of populating the ontology with significant individuals(actual DBMSs)benefits from the existing knowledge exposed by free and open machine-processable knowledge bases,by using structured data fromWikipedia and related sources.The pragmatic use of our ontology is demonstrated by two educational software solutions based on current practices in Web application development,proving support for learning and experimenting key features of the actual semantic Web technologies and tools.This approach is also an example of using multiple knowledge from database systems,semanticWeb technologies,and software engineering areas. 展开更多
关键词 Database management systems knowledge model web engineering
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PRODUCT MODELING AND PROCESS PLANNING WITHIN CONCURRENT ENGINEERING ENVIRONMENT
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作者 Tang Renzhong(Zhejiang University) 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 1996年第4期265-270,共2页
A prodouct modeling and a process planning that are two essential basses of realizing concurrent engineering are investigated , a logical modeling technique , grammar representation scheme of technology knowledge and... A prodouct modeling and a process planning that are two essential basses of realizing concurrent engineering are investigated , a logical modeling technique , grammar representation scheme of technology knowledge and architecture of expert system for process planning within con- current engineering environment are proposed. They have been utilized in a real reaserch project. 展开更多
关键词 Concurrent engineering Logical modeling Process planning Representation of technology knowledge
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Weighted Heterogeneous Graph-Based Incremental Automatic Disease Diagnosis Method
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作者 田圆圆 金衍瑞 +2 位作者 李志远 刘金磊 刘成良 《Journal of Shanghai Jiaotong university(Science)》 EI 2024年第1期120-130,共11页
The objective of this study is to construct a multi-department symptom-based automatic diagnosis model.However,it is dificult to establish a model to classify plenty of diseases and collect thousands of disease-sympto... The objective of this study is to construct a multi-department symptom-based automatic diagnosis model.However,it is dificult to establish a model to classify plenty of diseases and collect thousands of disease-symptom datasets simultaneously.Inspired by the thought of"knowledge graph is model",this study proposes to build an experience-infused knowledge model by continuously learning the experiential knowledge from data,and incrementally injecting it into the knowledge graph.Therefore,incremental learning and injection are used to solve the data collection problem,and the knowledge graph is modeled and containerized to solve the large-scale multi-classification problems.First,an entity linking method is designed and a heterogeneous knowledge graph is constructed by graph fusion.Then,an adaptive neural network model is constructed for each dataset,and the data is used for statistical initialization and model training.Finally,the weights and biases of the learned neural network model are updated to the knowledge graph.It is worth noting that for the incremental process,we consider both the data and class increments.We evaluate the diagnostic effectiveness of the model on the current dataset and the anti-forgetting ability on the historical dataset after class increment on three public datasets.Compared with the classical model,the proposed model improves the diagnostic accuracy of the three datasets by 5%,2%,and 15%on average,respectively.Meanwhile,the model under incremental learning has a better ability to resist forgetting. 展开更多
关键词 knowledge graph disease diagnosis incremental learning adaptive neural network knowledge model
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Knowledge Model for Electric Power Big Data Based on Ontology and Semantic Web 被引量:19
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作者 Yanhao Huang Xiaoxin Zhou 《CSEE Journal of Power and Energy Systems》 SCIE 2015年第1期19-27,共9页
It is very important for the development of electric power big data technology to use the electric power knowledge.A new electric power knowledge theory model is proposed here to solve the problem of normalized modele... It is very important for the development of electric power big data technology to use the electric power knowledge.A new electric power knowledge theory model is proposed here to solve the problem of normalized modeled electric power knowledge for the management and analysis of electric power big data.Current modeling techniques of electric power knowledge are viewed as inadequate because of the complexity and variety of the relationships among electric power system data.Ontology theory and semantic web technologies used in electric power systems and in many other industry domains provide a new kind of knowledge modeling method.Based on this,this paper proposes the structure,elements,basic calculations and multidimensional reasoning method of the new knowledge model.A modeling example of the regulations defined in electric power system operation standard is demonstrated.Different forms of the model and related technologies are also introduced,including electric power system standard modeling,multi-type data management,unstructured data searching,knowledge display and data analysis based on semantic expansion and reduction.Research shows that the new model developed here is powerful and can adapt to various knowledge expression requirements of electric power big data.With the development of electric power big data technology,it is expected that the knowledge model will be improved and will be used in more applications. 展开更多
关键词 Electric power big data knowledge model ONTOLOGY semantic web
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