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QueloDB: a Knowledge Based Visual Query System

机译:QueloDB:基于知识的可视化查询系统

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摘要

The construction of an intuitive visual interface that helps the user represents a necessary condition to gain user acceptance and confidence to the exploit of useful knowledge manager services. Towards this objective in the field of query formulation, we have developed QueloDB, a prototype tool for querying relational and object-oriented databases. Its most interesting features are based on its capability of reasoning on the semantics of the queries. These features are aimed at improving the interaction between inexpert users and complex databases, thanks to advanced knowledge management algorithms. Given a formal description of the conceptual model, QueloDB provides a simple, flexible, and intuitive visual interface that allow the user to: 1. interactively and iteratively build queries, exploring the semantic of database schemas via refinement and generalization of terms; 2. be prevented from making selections that would bring to semantically inconsistent queries.
机译:直观的可视界面的构建可帮助用户代表获得用户认可和对使用有用的知识管理器服务的信心的必要条件。为了实现查询表述这一目标,我们开发了QueloDB,这是用于查询关系数据库和面向对象数据库的原型工具。它最有趣的功能是基于其对查询语义进行推理的能力。由于先进的知识管理算法,这些功能旨在改善不熟练用户与复杂数据库之间的交互。在给出了概念模型的正式描述之后,QueloDB提供了一个简单,灵活和直观的可视界面,使用户可以:1.交互和迭代地构建查询,通过术语的细化和泛化来探索数据库模式的语义; 2.避免做出会带来语义上不一致的查询的选择。

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