CAREER: A Relational Database Interface to the World-Wide Web

职业：万维网的关系数据库接口

• 批准号: 9876309
• 负责人: Ellen Spertus
• 金额: $ 20万
• 依托单位: Mills College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-04-15 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9876309&HistoricalAwards=false
• 关键词: CAREER; Relational; Database; Interface; World

The World-Wide Web has the potential of being the world's largest knowledge base if its unique characteristics are properly utilized. While superficially similar to early hypertext and other information retrieval domains, the Web has important quantitative and qualitative differences that necessitate new tools and techniques. The quantitative differences are obvious: The tremendous size of the Web precludes storing a complete and up-to-date copy in a conventional database. The qualitative differences between the Web and earlier information retrieval domains are more subtle but no less important, including the various types of semi-structured information on the Web. Unifying the Web with relational databases, so it can be accessed through Structured Query Language (SQL) and other database tools, would apply one of the most popular data management tools to this challenging and important domain. A prototype implementation of just-in-time databases and the Squeal query environrnent appeared in the investigator's dissertation, proving that the Web could be queried as though it were in a local relational database. This was achieved by automatically retrieving information from the Web only when needed, allowing the construction of several simple but powerful structure-based information retrieval applications.This proposal is to build a powerful and efficient relational database interface to the Web that will be a valuable tool for the information retrieval community, supporting uniform access to many types of structural and other information on the Web, including inter-document structure, intra-document structure, forms, cookies, and new features as they arise. Efficient performance will require developing query optimization techniques, pre-fetch and refresh strategies, and techniques for sharing data among multiple users. As the system progresses, novel information retrieval applications will be developed and evaluated, to gain a better understanding of the benefits and limitations of using different types of available information toward various information retrieval problems. Throughout the process, the system itself will be evaluated, to better understand the powers and limits of providing a relational database interface to the Web.The primary educational goal is to increase computer science opportunities for women, an area in which the investigator has extensive experience and is well-positioned as a faculty member at a women's college with a strong undergraduate program and two graduate programs: a certificate program for people with college degrees who wish to change fields and an interdisciplinary master's program for combining computing with another area of experience. The investigator's plans (already in progress) include: Supervising undergraduate research, with the goal of preparing and motivating students for graduate education. Completely revising the architecture and operating systems sequence, including the creation of a hardware laboratory. Taking advantage of the school. Bay Area location to forge ties with industry leading to speakers, internships, permanent employment, and possible donations. Running a mentoring program for Mills students to prepare them for graduate school and employment. Recruiting transfer students from nearby community colleges, which has the added benefit of reaching economically underprivileged women. Improving the interdisciplinary master's program to more fully integrate students' other areas of interest with computer science.

如果万维网的独特特点得到适当利用，它有可能成为世界上最大的知识库。虽然表面上类似于早期的超文本和其他信息检索领域，但Web在数量和质量上都有重要的区别，需要新的工具和技术。数量上的差异是显而易见的：Web的巨大规模排除了在传统数据库中存储完整和最新的副本的可能性。Web和早期信息检索领域之间的质量差异更加微妙，但同样重要，包括Web上各种类型的半结构化信息。将Web与关系数据库统一起来，以便可以通过结构化查询语言(SQL)和其他数据库工具访问Web，将把最流行的数据管理工具之一应用到这个具有挑战性和重要的领域。作者在论文中给出了实时数据库的一个原型实现和尖叫查询环境，证明了Web可以像在本地关系数据库中一样被查询。这是通过仅在需要时从Web上自动检索信息来实现的，允许构建几个简单但强大的基于结构的信息检索应用程序。该建议是为了建立一个强大而高效的Web关系数据库接口，该接口将成为信息检索社区的宝贵工具，支持对Web上许多类型的结构化和其他信息的统一访问，包括文档间结构、文档内结构、表单、Cookie和出现的新功能。有效的性能将需要开发查询优化技术、预取和刷新策略以及在多个用户之间共享数据的技术。随着系统的发展，将开发和评估新的信息检索应用程序，以更好地了解使用不同类型的可用信息解决各种信息检索问题的好处和局限性。在整个过程中，将对系统本身进行评估，以更好地了解为网络提供关系数据库接口的能力和局限性。主要教育目标是增加女性在计算机科学领域的机会，在这个领域，研究人员拥有丰富的经验，并处于有利地位，是一所女子学院的教员，拥有强大的本科课程和两个研究生课程：一个是为希望转行的拥有大学学位的人提供的证书课程，另一个是将计算与另一个经验领域相结合的跨学科硕士课程。研究人员的计划(已经在进行中)包括：指导本科生的研究，目标是为研究生教育做准备和激励学生。完全修改体系结构和操作系统顺序，包括创建一个硬件实验室。利用学校的优势。位于旧金山湾区，与业界建立联系，带来演讲、实习、永久就业和可能的捐款。为米尔斯的学生提供指导计划，为他们进入研究生院和就业做准备。从附近的社区大学招收转学学生，这还有一个额外的好处，就是接触到经济上贫困的女性。改进跨学科硕士课程，更充分地将学生感兴趣的其他领域与计算机科学结合起来。