其次,它使关系和它们的语义变成显式的,而在标准的数据库模式中许多关系隐含在模式的设计中。
Second, it makes the relations and their semantics explicit, whereas in a standard database schema many relations are implicit in design of the schema.
这个知识库需要具备合适的语义,以及信息、用户和服务之间的关系。
This knowledge base needs to have proper semantics, with relationships defined between the information, users, and services.
执行任何关系的语义或者两对象间关系的引用完整性不需要CM IS知识库。
CMIS repositories are not required to enforce any semantics of relationships or enforce referential integrity between the two objects of a relationship.
逻辑模型、存储模型和服务器端jazzAPI的语义全都与特定的关系数据库系统选择无关。
The semantics of logical models, storage models, and server-side Jazz APIs are all independent of the particular choice of relational database system.
Triplify是一种小型的Web应用插件,它能够以rdf、JSON或者LinkedData格式提供数据库的内容,揭示出关系数据库中所保存的数据的语义结构。
Triplify is a small plugin for Web applications, which reveals the semantic structures encoded in relational databases by making database content available as RDF, JSON or Linked data.
本文描述一个分布式关系数据库系统中具有语义优化的查询处理算法。
In this paper, we describe an algorithm, for query processing with semantic optimization in distributed relational database systems.
为了增强关系数据库中的关键字搜索查询结果,考虑了多表之间以及元组之间的语义关系,提出了一种语义评分函数。
In order to enhance the search results of keyword search in relational databases, semantic relationship among relations and tuples is employed and a semantic ranking function is proposed.
本文研究关系数据库理论中空值在函数依赖中的语义问题,提出了带标志空值的关系中函数依赖的三种定义。
This paper deals with the semantics of null values in functional dependencies in database theory, and presents three different definitions of FDs in a single relation with marked nulls.
函数依赖对关系数据库和XML文档都是一种重要的语义表达。
Functional dependency is an important semantic representation both in relational databases and XML documents.
为了实现不完全信息的处理,以关系数据库中空值的完全语义为基础,阐述空值的存在对数据库操作的影响,并给出几种处理空值的方法。
Based on the semantics of null values in relational database, the article analyzes the affection of null values when we operate the database.
概念知识库包含两类知识元素:与专业领域相关的概念,概念之间的语义关系。
Conceptual knowledge base includes two categories of knowledge elements, i. e. subject-related concepts and semantic relations among concepts.
首先在UDDI系统中加入一个领域本体库,再为该uddi中的每个注册服务添加语义信息,并将服务和本体库的对应关系存入到UDDI的数据库中。
At first add a domain ontology base into the UDDI system, then add semantic information for every registered Web service.
提出了一种基于中医药语义本体知识库对中医药文献进行语义关系图发现的方法。
This paper proposed an ontology based TC; M semantic graph discovery of TCM Document, The core method includes three procedures.
运用关系数据库系统(rdbs)实现技术可以有效地解决OODB领域的许多问题,使得OODB无论从语义上还是效率上都有可能成为最有前途的数据库系统。
Can effectively solve a lot of problems in the area of OODB with the realizing technology of relation database system (RDBS), which likely make OODB, from either the apparent meaning or the...
实验部分将利用中医药语义本体知识库对中医药文献进行语义关系图的发现,验证提出的算法。
In the experiment section, the TCM ontology knowledge base was used to identify the semantic graph from TCM Documents, and verify the feasibility of the method of this paper.
实验部分将利用中医药语义本体知识库对中医药文献进行语义关系图的发现,验证提出的算法。
In the experiment section, the TCM ontology knowledge base was used to identify the semantic graph from TCM Documents, and verify the feasibility of the method of this paper.
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