【Key words】 NLIDB; query condition; query target; NLP; implicit knowledge of the database;
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空间查询目标 spatial target object
The query targets are classified and relevant changing ways of calculation are also proposed. The query target recognition mode of the query sentences based on semantics of the database is presented.
2.在查询目标的识别中,增强了对数据库隐含知识的处理能力,对查询目标进行了不同的分类,并给出了相关的变换算法。
参考来源 - 关于数据库汉语查询语句中查询信息的研究The medium language is composed of query link, concept link, query aim link and query condition tree etc.5.
该中间语言由查询成分链表querylink、复合概念等价变换链表conceptlink、实体队列entityqueue、查询目标链表queryaimlink、查询条件树queryconditiontree等构成。
参考来源 - 关于计算机理解自然查询语言的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
最后根据语义信息在代码知识库中定位查询目标。
为返回数据源中与查询目标节点相似的节点,首先提取出数据源中长度在固定范围内的所有路径,然后利用关系数据库系统将其与查询路径进行相似性连接,并按相似度从大到小返回所有结果。
To get the source nodes similar to the target query node, firstly the paths whose lengths were within an interval were extracted from the data source, then a similarity join process between them and.
如果已经选择了分解,那么接着选择一种最适合查询和报告需求的目标关系模式。
If you have decided to shred, pick a relational target schema that best fits the query and reporting requirements.
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