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arXiv 1710.04419cs.DB
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图数据库中的最佳路径查询

Querying Best Paths in Graph Databases

Jakub Michaliszyn, Jan Otop, Piotr Wieczorek

摘要:

图数据库查询最近受到了广泛的关注。我们提出了一种新的方法来解决这个问题,它平衡了表达能力,语言清晰度和计算复杂性的竞争目标。我们的方法的一个显着特点是能够表达满足给定标准的最小(例如最短)和最大(例如最有价值)路径的属性。为了以模块化的方式表达复杂的属性,我们引入了标签生成本体。由此产生的形式主义是计算上的吸引力-查询可以回答在非确定性对数空间中的数据库的大小。

英文摘要:

Querying graph databases has recently received much attention. We propose a new approach to this problem, which balances competing goals of expressive power, language clarity and computational complexity. A distinctive feature of our approach is the ability to express properties of minimal (e.g. shortest) and maximal (e.g. most valuable) paths satisfying given criteria. To express complex properties in a modular way, we introduce labelling-generating ontologies. The resulting formalism is computationally attractive -- queries can be answered in non-deterministic logarithmic space in the size of the database.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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