Fuzzy Ontology Construction Based on Incomplete Knowledge

There exists widely incomplete knowledge all over the world, but incomplete knowledge still cannot be dealt with in the process of ontology construction. Hence, a method for fuzzy ontology construction based on incomplete knowledge is proposed. First, the calculation principle of the attribute weight of the ontology concept is presented, and the calculation function of the attribute weight is derived through experiments. Then, the membership degree of the incomplete individual to the concept is computed. Finally, the incomplete individual is classified according to the principle of the variable precision rough set model. The experimental results show that the average precision of the classification of the incomplete individuals is 81.7% when the common attributes are omitted and that it is difficult to classify the incomplete individuals correctly when the private attributes are omitted. This method is significant for handling incomplete knowledge in the process of ontology construction.

Ontology Engineering and Knowledge Services for Agriculture Domain

This paper presents a knowledge service system for the domain of agriculture. Three key issues for providing knowledge services are how to improve the access of unstructured and scattered information for the non-specialist users, how to provide adequate information to knowledge workers and how to provide the information requiring highly focused and related information. Cyber-Brain has been designed as a platform that combines approaches based on knowledge engineering and language engineering to gather knowledge from various sources and to provide the effective knowledge service. Based on specially designed ontology for practical service scenarios, it can aggregate knowledge from Internet, digital archives, expert, and other resources for providing one-stop-shop knowledge services. The domain specific and task oriented ontology also enables advanced search and allows the system ensures that knowledge service could improve the user benefit. Users are presented with the necessary information closely related to their information need and thus of potential high interest. This paper presents several service scenarios for different end-users and reviews ontology engineering and its life cycle for supporting AOS （Agricultural Ontology Services） Vocbench which is the heart of knowledge services in agriculture domain.

Construction of the Ontology-Based Agricultural Knowledge Management System

Ontology is the formal representation of concepts and their mutual relations. It has wide application potential in the classification of agricultural information, the construction of information and knowledge database, the research and development of intelligent search engine, as well as the realization of cooperative information service, etc. In this research, an ontology-based agricultural knowledge management system framework is proposed, which includes modules of ontology-based knowledge acquisition, knowledge representation, knowledge organization, and knowledge mining, etc. The key technologies, building tools and applications of the framework are explored. Future researches on the theoretical refinement and intelligent simulation knowledge service are also envisioned.

Construction of an ontology-based nursing knowledge system

This study proposes the establishment of a knowledge-system ontology in the nursing field. It uses advanced data mining techniques,digital publishing technologies, and new media concepts to comprehensively integrate and deepen nursing knowledge and to aggregate sources of knowledge in specialized technical fields. This study applies all forms of media and transmission channels, such as personal computers and mobile devices, to establish a knowledge-transmission system that provides knowledge services such as knowledge search, update retrieval, evaluation, questions and answers(Q&As), online viewing, information subscription, expert services, push notifications, review forums, and online learning. In doing so, this study creates an authoritative and foundational knowledge service engine for the nursing field, which provides convenient, flexible, and comprehensive knowledge services to members of the nursing industry in a digital format.

Knowledge Fusion and Synchronization over Ubiquitous Ontology Mapping

With the rapid development and popularization of web services, the available information types and structure are becoming more and more complex and challenging. Actually web services involve the need for dynamic integration and transparent knowledge integration, in light of the urgent information changing track. Under this situation, the traditional search engine and information integration cannot finish this challenge, thereby bringing the opportunity for knowledge fusion and synchronization. This paper proposes a multi-matching strategy ontology mapping method for web information, i.e., ubiquitous ontology mapping method (U-Mapping), which can be viewed as a base collection of information on multiple ontologies made to appear anytime and everywhere. This approach is usually built independently by different information providers, avoiding the grammatical and semantic conflict. Finally, the ontology case information can be utilized under the consolidation of the U-Mapping, concerning language technology and machine learning methods.

基于ontology的企业知识集成研究

针对企业中存在大量分布式异构知识源问题,提出了基于ontology的企业知识集成方法,探讨了知识需求和多ontology管理等关键技术.某航空研究所应用表明:该方法可以有效解决企业知识异构问题.

基于Ontology的跨组织知识整合方法研究

从知识整合的实际需求和研究现状出发,给出了跨组织环境下基于Ontology技术的知识整合流程,并结合语义网技术实现了知识集的闭包、查询与标准化同构等算法,开发了跨组织知识整合的原型系统。通过一个钢铁企业跨组织知识整合案例展示了原型系统的功能,说明知识的整合可以达到"语义增值"的效果;通过两个实验给出了原型系统的性能。

基于Ontology的油田地质信息系统的研究与实现

为解决油田生产实践中多专业之间由于术语不统一,而造成的信息不能共享和重用的问题,基于本体知识的表示,构建了油田地质领域本体,对油田地质领域的概念、属性、关系等知识进行了规范化描述。建立了油田地质领域知识规则库,用于本体知识推理。设计了一个基于Jena API的本体查询和推理的知识管理系统,实现了油田地质知识的查询和集成,解决了油田地质领域的知识共享问题,为油田地质的相关服务提供知识管理的支撑平台。

基于Ontology的知识集成建模研究

采用分类和描述的思想方法,利用本体映射和多本体管理技术对知识集成的建模过程进行研究和分析;在此基础上,给出知识集成的结构模型,并利用实例验证建模过程;结果证明在建模过程中引入Ontology可以减少一词多义等缺陷,保证概念类之间的一致性。

Improving the Efficiency of Multi-Objective Grasshopper Optimization Algorithm to Enhance Ontology Alignment

Ontology alignment is an essential and complex task to integrate heterogeneous ontology.The meta-heuristic algorithm has proven to be an effective method for ontology alignment.However,it only applies the inherent advantages of metaheuristics algorithm and rarely considers the execution efficiency,especially the multi-objective ontology alignment model.The performance of such multi-objective optimization models mostly depends on the well-distributed and the fast-converged set of solutions in real-world applications.In this paper,two multi-objective grasshopper optimization algorithms(MOGOA)are proposed to enhance ontology alignment.One isε-dominance concept based GOA(EMO-GOA)and the other is fast Non-dominated Sorting based GOA(NS-MOGOA).The performance of the two methods to align the ontology is evaluated by using the benchmark dataset.The results demonstrate that the proposed EMO-GOA and NSMOGOA improve the quality of ontology alignment and reduce the running time compared with other well-known metaheuristic and the state-of-the-art ontology alignment methods.

Knowledge acquisition, semantic text mining, and security risks in health and biomedical informatics

Computational techniques have been adopted in medi-cal and biological systems for a long time. There is no doubt that the development and application of computational methods will render great help in better understanding biomedical and biological functions. Large amounts of datasets have been produced by biomedical and biological experiments and simulations. In order for researchers to gain knowledge from origi- nal data, nontrivial transformation is necessary, which is regarded as a critical link in the chain of knowledge acquisition, sharing, and reuse. Challenges that have been encountered include: how to efficiently and effectively represent human knowledge in formal computing models, how to take advantage of semantic text mining techniques rather than traditional syntactic text mining, and how to handle security issues during the knowledge sharing and reuse. This paper summarizes the state-of-the-art in these research directions. We aim to provide readers with an introduction of major computing themes to be applied to the medical and biological research.

Using the KISO's Framework to Integrate Knowledge Sources

In complicated application environment such as CIMS (Computer Integrated Manufacture System) enterprise, it will bring great benefits to integrate distributed knowledge sources. But the difficulties of knowledge sharing and reuse seriously encumbrance the implementation of knowledge integration. In this paper, we describe how a framework of knowledge-integrated system based on ontology (KISO) can be used to support integrating distributed knowledge sources.

Enhancing Domain Knowledge with Semantic Models of Web Documents

The paper considers the problem of semantic processing of web documents by designing an approach, which combines extracted semantic document model and domain- related knowledge base. The knowledge base is populated with learnt classification rules categorizing documents into topics. Classification provides for the reduction of the dimensio0ality of the document feature space. The semantic model of retrieved web documents is semantically labeled by querying domain ontology and processed with content-based classification method. The model obtained is mapped to the existing knowledge base by implementing inference algorithm. It enables models of the same semantic type to be recognized and integrated into the knowledge base. The approach provides for the domain knowledge integration and assists the extraction and modeling web documents semantics. Implementation results of the proposed approach are presented.

基于大语言模型的水工程调度知识图谱的构建与应用

随着水利事业的发展和信息化需求的增加,处理和表示海量水利数据变得复杂而繁琐。特别是调度文本数据通常以自然语言的形式存在,缺乏明确的结构和规范,并且处理和应用这些多样性的数据需要具备广泛的领域知识和专业背景。为此,提出了基于大语言模型的水工程调度知识图谱的构建方法。通过数据层的调度规则数据收集与预处理,再利用大语言模型挖掘和抽取数据中蕴藏的知识,完成概念层本体构建和实例层“三步法”提示策略抽取。在数据层、概念层、实例层的相互作用下,实现了规则文本的高性能抽取,完成了数据集和知识图谱的构建。实验结果表明,大语言模型抽取方法F1值达到85.5%,且通过消融实验验证了模型各模块的有效性和合理性。构建的水工程调度知识图谱整合了分散的水利规则信息,有效处理非结构化文本数据,并提供可视化查询和功能追溯功能。这有助于领域从业人员判断来水情况并选择适当的调度方案,为水利决策和智能推荐等提供了重要支持。

基于知识图谱的食品领域数智化研究进展

随着大数据和云计算等技术的发展,食品领域的数据规模正在以惊人的速度增长。这些数据不仅来源多样、结构复杂,且缺乏统一的术语标准,给食品数据的有效整合和利用带来了挑战。知识图谱作为实现通用人工智能的重要基石,以其在数据整合和语义理解方面的能力,为食品领域的数据组织、管理与应用提供了支持。通过总结近年来知识图谱在食品领域应用的研究成果,介绍了食品领域知识图谱的构建方法,涵盖本体构建、知识抽取、知识融合和加工等关键环节;重点梳理了当前食品领域知识图谱在食品营养与健康、食品创新与研发、食品安全与溯源3个方面的数智化应用;基于食品领域知识图谱的发展现状,从多模态数据融合技术、大语言模型构建以及食品领域工业设备智能化发展角度展望了食品领域知识图谱的未来发展方向。

缆机安全运行本体知识表示及复用方法

为解决缆机运行管理过程中,大量多源异构结构化和非结构化知识难以复用及知识管理效率低的问题,分析缆机安装和运维过程中积累的大量技术规范、专家经验等安全知识,提取缆机运行相关实体类,采用五元组模型结构化表达缆机安全运行本体知识,并建立类间二元关系,使用Protégé中的本体表达语言程序化表示;构建缆机实体、安全预警、应急预案3大领域本体知识库;采用3Dmax软件,构建缆机运行三维场景模型,导入Unity3D引擎,在用户界面和交互功能中,实现本体知识库知识检索;针对缆机各实体存在的安全隐患、事故实例、应急预案,构建完整的缆机安全运行知识检索三维可视化平台。结果表明:缆机安全运行本体知识库,能够集中统一管理各种缆机安全运行知识,结合知识检索平台,可实现知识的高效查询和复用。

数显量具族知识图谱的构建及其应用

数显量具种类及其关联信息的全面准确描述有助于对其深刻理解与正确选用,为此探索数显量具族知识图谱的构建与应用问题有重要意义。在数显量具本体的半自动化构建原理的基础上,采用综合算法相关度AR抽取概念,再结合词法模板、 Jaccard系数的多重聚类、 SAO结构的PPMI、 Dice测量强度等算法抽取概念关系,之后使用Protégé工具完成本体构建;提出融合实体关系类别的PRGC实体关系联合抽取模型提取语料中重叠三元组信息。设计原型系统自动化地从网页中抽取与数显量具结构和功能等相关的知识,半监督构建其知识图谱,进一步提供数显量具知识图谱的可视化与知识检索功能,从而提高数显量具知识管理的智能化程度。

知识关联视角下标准文档的多粒度知识组织方法研究

传统的文档组织方式无法应对标准数字化发展形势,有必要充分发掘标准文档中的多粒度知识单元及其语义关联,探索能够高效运用标准知识的新型组织方法,为优化标准供给提供参考。从知识关联视角出发,提出一种面向标准文档的多粒度、富语义的通用知识组织方法。首先,基于知识粒度理论,依据标准文档的知识内容和需求特征进行多粒度的知识划分与描述;其次,从知识层级、文档特征、文本逻辑、时空演化等方面认知和发现标准多粒度知识间的语义关联模式与类型;最后,采用本体构建方法实现标准文档的多粒度知识组织,并通过知识实例的添加来实现本体验证与价值阐述。多粒度知识关联的标准组织方法能够完整揭示标准文档中的多粒度知识单元,形成联通广泛的知识层次与关联,有助于标准知识在多种服务场景中被有效获取、共享与重用,既推进了适应数智时代的标准资源建设,又丰富了多粒度知识驱动的文档内容挖掘与利用。

基于知识图谱的高校智慧教学平台建设与实践

针对高职院校计算机专业课程存在的内容抽象,理解难度大,导致学生在学习过程中会丢失大量学习机会及专业指引等问题,本研究设计实现了一个基于知识图谱的高校智慧教学平台。通过引入知识图谱技术,主要实现了知识图谱显示、知识路径查询、知识点关系管理、习题推荐、资源推荐、智能问答等功能,有助于学生形成系统的学科知识体系。

基础地理实体关系的知识图谱构建方法研究

针对新型基础测绘中构建地理实体关联关系的问题,提出一种基础地理实体关系的知识图谱构建方法,利用江苏省基础地理实体库作为实验数据,结合本体构建、知识抽取、知识图谱存储和语义网表示等关键技术,实现了基础地理实体知识图谱的构建与应用。实验结果表明:与传统的库表属性关联方法相比,该方法降低了地理实体关联关系构建的复杂度,串联地理实体多源异构数据,实现结构化、半结构化数据的高效存储与快速索引,满足了新型基础测绘“一库多能,按需组装”的需求,为实景三维中国的建设提供了可靠、高效的服务基础。