古建筑领域本体的构建及应用研究

发布时间：2018-01-24 10:57

本文关键词： 古建筑领域本体语义问答系统智慧旅游新产品　出处：《广西师范大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着时代的发展,古人遗留下来的古建筑丰富多彩,古建筑带给人们的不仅是视觉上的体验,还有背后蕴含的文化知识,人们向往的也正是这些不同历史时期保存下来的文化名城与建筑包含的历史底蕴。人们对古建筑的追崇,以及互联网技术的发展与大数据时代的到来,使用户可以通过网络更便捷地查找旅游信息,但是通过网络查找经常存在查询结果不匹配的现象。结构化存储数据能够很好地规范海量信息,结构化知识库能让知识的划分更加专业规范。语义Web里的本体是一个公理集,描述逻辑是表达本体的有效工具,使用基于本体的问答系统会让查询结果变得更加准确。特定领域知识库规范了领域中的概念、对象属性、数据属性以及与其它概念之间的语义关联关系。现阶段国内外研究古建筑的知识多但分类不完善,所以本文利用本体结构化的优点来规范该领域知识。本文首先研究古建筑知识,构建古建筑本体并用描述逻辑形式化表示;其次对用户提出的问题进行语义分析,疑问词识别,并依据词性提取相应的语义关系;最后对知识库进行查询及推理得出结果,并将结果返回给客户端。本文研究的主要工作如下:(1)古建筑本体构建:借鉴软件工程中面向对象建模方法为指导方针构建本体。搜集古建筑数据,提取古建筑属性特征,对古建筑信息重新整合,分析概念之间内在的逻辑关系。利用可视化本体工具Prot6g6和OWL2编码语言,构建古建筑领域本体。定义原子概念和原子角色,运用描述逻辑表示古建筑领域本体。(2)古建筑本体查询规则定义和推理:使用基于语义依存分析算法对自然语言问句进行理解。使用Jena将数据资源标注,持久化存入数据库,形成带有语义信息的数据,为本体映射提供数据表。使用SPARQL语言进行语义查询与推理,自定义古建筑SWRL规则,增强对古建筑领域知识的推理能力。(3)古建筑知识查询移动APP平台设计:使用Jena解析概念的直接父类与子类来设计古建筑列表展示功能。提出计算古建筑实例的影响因子公式,计算实例在知识库中影响程度。在上述理论与算法的基础上,实现一个基于本体的古建筑问答系统原型,并将上述研究成果与移动设备结合起来,在手机上运行古建筑APP,创新智慧旅游产品,使用AJAX技术动态加载数据,最后验证并比较了问答的准确率。
[Abstract]:With the development of the times, the ancient buildings left by the ancients are rich and colorful. The ancient buildings bring people not only the visual experience, but also the cultural knowledge behind them. What people yearn for is the historical details of these famous cultural cities and buildings preserved in different historical periods, people's pursuit of ancient buildings, and the development of Internet technology and the arrival of big data era. So that users can find travel information more conveniently through the network, but through the network lookup often exists the phenomenon of query results mismatch. Structured storage data can well regulate the mass of information. Structured knowledge base can make the division of knowledge more professional. Ontology in semantic Web is an axiom set and description logic is an effective tool to express ontology. Using an ontology-based question-and-answer system will make the query results more accurate. The domain-specific knowledge base standardizes the concepts in the domain and the attributes of the objects. Data attributes and semantic relationships between data attributes and other concepts. At present, there is much knowledge about ancient architecture at home and abroad, but the classification is not perfect. So this paper makes use of the advantage of ontology structure to standardize the knowledge in this field. Firstly, this paper studies the ancient architecture knowledge, constructs the ancient architecture ontology and formalizes the description logic. Secondly, the semantic analysis of the questions raised by the user is carried out, the interrogative words are identified, and the corresponding semantic relations are extracted according to the part of speech. Finally, the results are obtained by querying and reasoning the knowledge base. The main work of this paper is as follows: 1) the construction of ancient architecture ontology: using object oriented modeling method in software engineering as guidelines to construct ontology and collect ancient building data. The attributes of ancient architecture are extracted, the information of ancient architecture is reintegrated, and the inherent logical relationship between concepts is analyzed. The visual ontology tools Prot6g6 and OWL2 coding language are used. Construct the domain ontology of ancient architecture. Define the atomic concept and atomic role. Using description Logic to represent the Ontology of Ancient Architecture. Ancient architecture ontology query rules definition and reasoning: based on semantic dependency analysis algorithm to understand natural language questions. Jena will be used to annotate data resources. Persistence is stored in the database to form data with semantic information and provide data tables for ontology mapping. Semantic query and reasoning are carried out by using SPARQL language, and the rules of ancient architecture SWRL are defined. Enhancing reasoning ability for knowledge in the field of ancient architecture. The design of mobile APP platform for ancient architecture knowledge query: the direct parent and subclass of Jena analytic concept are used to design the display function of ancient architecture list. Based on the above theories and algorithms, an ontology based ancient architecture question answering system prototype is implemented, and the above research results are combined with mobile devices. It runs the old building app on the mobile phone, innovates the intelligent tourism product, uses the AJAX technology to load the data dynamically, and finally verifies and compares the accuracy of the question and answer.
【学位授予单位】：广西师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP391.1

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