ROW: An Approximate Query Processing System for Temporal Data
ROW:时态数据的近似查询处理系统
基本信息
- 批准号:9308494
- 负责人:
- 金额:$ 1.45万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:1993
- 资助国家:美国
- 起止时间:1993-08-01 至 1995-01-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
9308494 Vrbsky This is the first year funding of a three-year continuing award. A real-time system has specific time constraints for the processing of a database query as well as consistency requirements for its temporal data. If it is not possible to produce an exact answer to a database query by a specified deadline, approximate query processing can be used to provide an approximate answer within the time constraints, but it does not address the temporal dimension of the data. This project integrates the two areas of approximate query processing and temporal data models in order to design an approximate query processing system for temporal data. A new semantics of approximation is being developed to include the different types of temporal data and consistency requirements of a real-time database. The approximate relational algebra operations are extended to include new approximate temporal operations. The semantic information needed during approximate query processing to incorporate the temporal dimension and maintain consistency is being determined. The result of this project will provide a design for the implementation of an approximate query processing system that can be used in environments where data consistency must be maintained and deadlines must be met. ***
9308494 Vrbsky这是三年持续奖励的第一年资金。实时系统对于数据库查询的处理具有特定的时间约束以及对其时态数据的一致性要求。如果不可能在指定的截止日期前产生对数据库查询的准确答案,则可以使用近似查询处理在时间约束内提供近似答案,但它不涉及数据的时间维度。本课题将近似查询处理和时态数据模型两个领域结合起来,设计了一个时态数据近似查询处理系统。正在开发一种新的近似语义,以包括不同类型的时态数据和实时数据库的一致性要求。对近似关系代数运算进行了扩展,使其包含新的近似时态运算。正在确定在近似查询处理期间合并时间维度和保持一致性所需的语义信息。该项目的结果将为实施一个近似查询处理系统提供一个设计方案,该系统可用于必须保持数据一致性和必须在最后期限前完成的环境。***
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Susan Vrbsky其他文献
Susan Vrbsky的其他文献
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{{ truncateString('Susan Vrbsky', 18)}}的其他基金
S-STEM: Increasing Diversity in Next Generation Computing
S-STEM:增加下一代计算的多样性
- 批准号:
1154274 - 财政年份:2012
- 资助金额:
$ 1.45万 - 项目类别:
Standard Grant
IDIC: Increasing Diversity in Computing
IDIC:增加计算的多样性
- 批准号:
0806929 - 财政年份:2008
- 资助金额:
$ 1.45万 - 项目类别:
Standard Grant
Increasing Diversity in Computer Science and Mechanical Engineering
增加计算机科学和机械工程的多样性
- 批准号:
0422377 - 财政年份:2004
- 资助金额:
$ 1.45万 - 项目类别:
Standard Grant
RIA: Evaluation of Approximate Query Processing for Real- Time Databases
RIA:实时数据库近似查询处理的评估
- 批准号:
9409694 - 财政年份:1994
- 资助金额:
$ 1.45万 - 项目类别:
Continuing Grant
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