The RDF-3X engine for scalable management of RDF data----part2
本文由学者Thomas Neumann和Gerhard Weikum于2009/09/01在《The VLDB Journal 》联合发表 原文下载链接文末自取 选择性估计： 查询优化器依靠成本模型查找成本最低的执行计划，由于估计的基数及选择性对计划生成影响巨大，所以提出如下两种统计方法： 专用直方图，可处理任何类型的三重模式和联接，缺点是假设谓词间具有独立性，则谓词不包含在紧密耦合的三元模式。
相关文章
- 1. Unreal Engine Plugin management
- 2. The Engine Document of JustWeEngine
- 3. Intel Management Engine, Explained: The Tiny Computer Inside Your CPU
- 4. Blcokchain Meets IoTL:An Architecture for Scalable Access Management in IoT
- 5. The Best Open Source Game Engine: In Search Of Perfection
- 6. The Role of AI Planning in the Management of Future Internet(review)
- 7. How JavaScript works: an overview of the engine, the runtime, and the call stack
- 8. Rise of Kotlin: The Programming Language for the Next Generation
- 9. The Anatomy of a Large-Scale Hypertextual Web Search Engine
- 10. An Overview of the Tesseract OCR Engine译文
- 更多相关文章...
- • Scala for循环 - Scala教程
- • RDF 规则 - RDF 教程
- • 为了进字节跳动，我精选了29道Java经典算法题，带详细讲解
- • 使用Rxjava计算圆周率
相关标签/搜索
每日一句
-
每一个你不满意的现在，都有一个你没有努力的曾经。
欢迎关注本站公众号,获取更多信息
相关文章
- 1. Unreal Engine Plugin management
- 2. The Engine Document of JustWeEngine
- 3. Intel Management Engine, Explained: The Tiny Computer Inside Your CPU
- 4. Blcokchain Meets IoTL:An Architecture for Scalable Access Management in IoT
- 5. The Best Open Source Game Engine: In Search Of Perfection
- 6. The Role of AI Planning in the Management of Future Internet(review)
- 7. How JavaScript works: an overview of the engine, the runtime, and the call stack
- 8. Rise of Kotlin: The Programming Language for the Next Generation
- 9. The Anatomy of a Large-Scale Hypertextual Web Search Engine
- 10. An Overview of the Tesseract OCR Engine译文