面向城市体检综合评估的知识建模——以广州市为例

Knowledge modeling for comprehensive evaluation of urban physical examination:A case study of Guangzhou

随着高质量发展时代的到来,人们对城市生活空间的品质提出了更高要求。城市体检评估作为实现城市高质量发展的重要手段已经在多个试点城市开展和实施。然而,目前城市体检评估基本内涵尚不明确,相关知识结构化工作较少,缺乏对城市体检评估知识模型的深入研究。本文以广州市为例,提出一种基于评估要素提取和关注要点解析与关联的方法,依托城市体检指标体系,通过评估要素提取、关注要点解析、关注要点关联和基本内涵凝练四个步骤,明确了21项城市体检综合评估的基本内涵。在此基础上,首先,通过结构化建模构建了城市体检综合评估知识体系;其次,从知识层级、地理知识和事件叙事的角度,对知识体系进行了关联化处理,形成了城市体检综合评估知识模型;最后,本文将知识模型应用于广州市城市体检综合评估知识服务系统研发,实现了城市体检综合评估知识的可视化展示、知识推荐、智能问答等应用。同时,文中探讨了本思路和方法的推广前景与存在问题,指出知识模型的构建和应用需要考虑的技术难点与实际需求,为城市体检综合评估知识服务提供了思路与经验。

With the advent of the era of high-quality development,people expect a more comfortable,healthier,and safer urban living space.Urban physical examination evaluation,as an important tool for achieving high-quality urban development,has been adopted and practiced by many pilot cities.However,at present,the basic connotation of urban physical examination evaluation is not clear,and the relevant knowledge structure work is insufficient.There is also a lack of research on the knowledge model of urban physical examination evaluation.The paper takes Guangzhou as an example and proposes a method based on the extraction of evaluation elements and the analysis and association of focus points.Relying on the urban physical examination evaluation indicator system,the method clarifies the basic connotation of urban physical examination evaluation through four steps:evaluation element extraction,focus point analysis,focus point association,and basic connotation refinement.A total of 21 basic connotations are identified,reflecting the urban development characteristics and needs of Guangzhou.Building upon this foundation,this paper first constructs the knowledge system of urban physical examination evaluation through structured modeling.Then,it performs the association of the knowledge system from the perspectives of knowledge hierarchy,geographic knowledge,and event knowledge.Utilizing cross-media means,the relevant spatiotemporal data and knowledge are associated,forming the knowledge model of urban physical examination evaluation.The knowledge model consists of five layers:theme layer,connotation layer,knowledge layer,indicator layer,and basic data layer,reflecting the overall goal,basic connotation,focus points,evaluation indicators,and spatiotemporal data of urban physical examination evaluation.The multi-level,multi-dimensional,and multi-granularity association processing enhances the expression ability and application value of knowledge.Finally,the paper applies the knowledge model to the development of the urban physical examination evaluation knowledge service system in Guangzhou,realizing knowledge service applications such as visualization,knowledge recommendation,and intelligent question answering of urban physical examination evaluation knowledge.It also discusses the promotion prospects and existing problems of this approach and method,pointing out the technical difficulties and practical needs that need to be considered in the construction and application of the knowledge model,providing ideas and experience for the knowledge service of urban physical examination evaluation.