湖南大学学报（自然科学版）2009，Vol.36Issue(11)：73-77,5.
ORM中基于语义相似性的查询缓存替换策略
A Query Cache Replacement Scheme Based on Semantic Comparability Metric in ORM
摘要
Abstract
The SC (semantic comparability) cache replacement policy for semantic cache was proposed, which took into account the characteristic of query locality. This policy analyses the relativity between query items and caching items in several aspects, such as relation, condition and query attribute, and then collaborate with the data access frequency metric to determine the least similar item in cache. Performance testing results have validated that the SC replacement policy can achieve higher hit ratio and lesser query response time than the LRU policy when the queries are correlated and appear successively.关键词
面向对象编程/关系数据库系统/ORM(Object-Relational Mapping)/语义缓存/语义局部性Key words
object oriented programming relational database systems /ORM/ semantic cache/ semantic locality分类
信息技术与安全科学引用本文复制引用
周红静,杨金民..ORM中基于语义相似性的查询缓存替换策略[J].湖南大学学报（自然科学版）,2009,36(11):73-77,5.基金项目
国家自然科学基金资助项目(60703097, 60703155) （60703097, 60703155）
国家973资助项目(2007CB310702) （2007CB310702）
