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关系数据库上基于索引的Top-N关键词查询

Keywords: 为了实现关系数据库上自由态的查询,通过创建索引表并运用其存储的知识为每个属性赋予不同的权值来改进信息检索中传统的排序方法.对每个查询用索引表和改进的排序方法来获得Top-N答案.用实际数据集进行了实验,实验结果表明此方法在查询时间和准确性上是有效的.查询,索引,元组树,排序策略

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Abstract:

为了实现关系数据库上自由态的关键词查询,通过创建索引表并运用其存储的知识为每个属性赋予不同的权值来改进信息检索中传统的排序方法.对每个查询用索引表和改进的排序方法来获得Top-N答案.用实际数据集进行了实验,实验结果表明此方法在查询时间和准确性上是有效的.

References

[1]  BHALOTIA G,HULGERI A,NAKHE C,et al.Keyword searching and browsing in databases using BANKS[C]∥Proceedings of the 18th International Conference on Data Engineering.San Jose:IEEE Computer Society,2002:431-440.
[2]  AGRAWAL S,CHAUDHURI S,DAS G.DBX plorer:a system for keyword-based search over relational database[C]∥Proceedings of the 18th International Conference on Data Engineering.San Jose:IEEE Computer Society,2002:5-16.
[3]  ZHU L,MENG W,LIU C,et al.Processing Top-N relational queries by learning[J].J Intell Inf Syst,2010,34(1):21-55.
[4]  HRISTIDIS V,GRAVANO L,PAPAKONSTANTINOU Y.Efficient IR-style keyword search over relational databases[C]∥Proceedings of 29th International Conference on Very Large Data Bases.Berlin:Morgan Kaufmann,2003:850-861.
[5]  CORMEN T,LEISERSON C,RIVEST R,et al.Introduction to algorithms[M].2nd ed.Cambridga:MIT Press,2001:226-227.
[6]  GU J J,KITAGAWA H.Extending keyword search to metadata in relational databases[C]∥Information-Explosion and NextGeneration Search(INGS'08).Shenyang:IEEE Computer Society,2008:97-103.
[7]  KACHOLIA V,PANDIT S,CHAKRABARTI S,et al.Bidirectional expansion for keyword search on graph databases[C]∥Proceedings of the 31st International Conference on Very Large Data Bases.Trondheim:ACM,2005:505-516.
[8]  WANG S,PENG Z,ZHANG J,et al.NUITS:a novel user interface for efficient keyword search over databases[C]∥Proceedings of the 32nd International Conference on Very Large Data Bases.Seou:ACM,2006:1143-1146.
[9]  ZHU L,MA Q,LIU C,et al.Semantic-distance based evaluation of ranking queries over relational databases[J].J Intell InfSyst,2010,35(3):415-445.
[10]  LIU F,YU C,MENG W,et al.Effective keyword search in relational databases[C]∥Proceedings of the 26th ACMSIGMOD/PODS International Conference on Management of Data/Principles of Database Systems.Chicago:ACM,2006:563-574.
[11]  HRISTIDIS V,PAPAKONSTANTINOU Y.DISCOVER:keyword search in relational databases[C]∥Proceedings of the 28thInternational Conference on Very Large Data Bases.Hong Kong:Morgan Kaufmann,2002:670-681.
[12]  SU Q,WINDOM J.Indexing relational database content offline for efficient keyword-based search[C]∥9th InternationalDatabase Engineering&Application Symposium.Montreal:IEEE Computer Society,2005:297-306.
[13]  SINGHAL A.Modern information retrieval:a brief overview[J].IEEE Data Eng Bull,2001,24(4):35-43.
[14]  SINGHAL A,BUCKLEY C,MITRA M.Pivoted document length normalization[C]∥Proceedings of the 19th AnnualInternational ACM SIGIR Conference on Research and Development in Information Retrieval(SIGIR'96).Zurich:ACM,1996:21-29.

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