摘要
协作检索是分布式检索的研究热点。针对如何优化查询策略、以最小的代价实现协作查询问题,基于分布式信息聚类思想,提出了一种根据各个站点的特征向量来控制参与协作查询的站点数量的构想,并给出了一种协作检索算法。测试证明,该算法在基本不影响查询结果质量的前提下确实能降低查询代价。
To the question of how to make co-operative query with the lowest cost, it is put forward to minimize the cooperative site set based on information clustering by utilizing the characteristic vector of the sites. The corresponding algorithm for distributed cooperative query is also brought forward. As proved in simulative tests, it can efficiently optimize the cooperative query process.
出处
《微电子学与计算机》
CSCD
北大核心
2005年第5期32-35,共4页
Microelectronics & Computer
关键词
搜索引擎
分布式系统
协作检索
Search engine, Distributed system, Cooperative query
