在图3所示的场景中，先给形式自由的文本中的概念加注解，然后把它们与现有的结构化信息一起写到一个数据库表中。
Figure 3 depicts a scenario where concepts in free-form text are first annotated and later written to a database table together with existing structured information.
首先介绍的是传感数据库的概念、体系结构；
This paper firstly introduces the concept of sensor database and its architecture.
文章概述了移动数据库的基本概念，系统的体系结构，移动数据库的特性等。
This paper introduces the basic concepts, the system structure, and the characteristic of Mobile Database.
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