Term associations in query expansion : a structural linguistic perspective
Symonds, Michael, Zuccon, Guido, Koopman, Bevan, Bruza, Peter D., & Sitbon, Laurianne (2013) Term associations in query expansion : a structural linguistic perspective. In ACM International Conference on Information and Knowledge Management (CIKM 2013), ACM, San Francisco, CA.
Many successful query expansion techniques ignore information about the term dependencies that exist within natural language. However, researchers have recently demonstrated that consistent and significant improvements in retrieval effectiveness can be achieved by explicitly modelling term dependencies within the query expansion process. This has created an increased interest in dependency-based models.
State-of-the-art dependency-based approaches primarily model term associations known within structural linguistics as syntagmatic associations, which are formed when terms co-occur together more often than by chance. However, structural linguistics proposes that the meaning of a word is also dependent on its paradigmatic associations, which are formed between words that can substitute for each other without effecting the acceptability of a sentence. Given the reliance on word meanings when a user formulates their query, our approach takes the novel step of modelling both syntagmatic and paradigmatic associations within the query expansion process based on the (pseudo) relevant documents returned in web search. The results demonstrate that this approach can provide significant improvements in web re- trieval effectiveness when compared to a strong benchmark retrieval system.
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|Item Type:||Conference Paper|
|Keywords:||Query Expansion, Term dependencies, Tensor Encoding Model, Web Search|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > INFORMATION SYSTEMS (080600)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > INFORMATION SYSTEMS (080600) > Information Systems not elsewhere classified (080699)
|Divisions:||Current > QUT Faculties and Divisions > Science & Engineering Faculty|
|Copyright Owner:||Copyright 2013 ACM|
|Copyright Statement:||This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in The Proceedings of ACM International Conference on Information and Knowledge Management (CIKM 2013)|
|Deposited On:||01 Aug 2013 23:22|
|Last Modified:||01 Apr 2014 19:09|
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