Dynamic Index Maintenance for Text Search Engines

文本搜索引擎的动态索引维护

• 批准号: DP0452062
• 负责人: Prof Justin Zobel
• 金额: $ 22.98万
• 依托单位: RMIT University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-03-24 至 2007-03-24
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0452062
• 关键词: Dynamic; Index; Maintenance; Text; Search

Text retrieval systems such as internet search engines use high-performance indexes to rapidly locate documents that match user queries. In recent years there have been major improvements in query evaluation and index construction techniques. As the data changes, it is necessary to keep the index up to date, but current methods for maintaining indexes are slow and costly. The aim of this project is to develop methods that provide on-the-fly update at much lower cost, thereby improving the performance of text retrieval systems. This work involves both practical development and innovation in fundamental algorithms.

文本检索系统（如互联网搜索引擎）使用高性能索引来快速定位与用户查询匹配的文档。 近年来，在查询评估和索引构造技术方面有了很大的改进。 随着数据的变化，有必要使索引保持最新，但目前维护索引的方法既慢又昂贵。 这个项目的目的是开发方法，提供即时更新，以更低的成本，从而提高文本检索系统的性能。 这项工作既涉及实际的发展和创新的基本算法。