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An evaluation and analysis of incorporating term dependency for ad-hoc retrieval

Lang, Hao and Wang, Bin and Jones, Gareth J.F. and Li, Jintao and Liu, Yi-Xuan (2008) An evaluation and analysis of incorporating term dependency for ad-hoc retrieval. In: 30th European Conference on Information Retrieval Research (ECIR 2008), , 30 Mar - 3 Apr 2008, Glasgow, Scotland.

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Although many retrieval models incorporating term dependency have been developed, it is still unclear whether term dependency information can consistently enhance retrieval performance for different queries. We present a novel model that captures the main components of a topic and the relationship between those components and the power of term dependency to improve retrieval performance. Experimental results demonstrate that the power of term dependency strongly depends on the relationship between these components. Without relevance information, the model is still useful by predicting the components based on global statistical information. We show the applicability of the model for adaptively incorporating term dependency for individual queries.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Uncontrolled Keywords:term dependancy; queries
Subjects:Computer Science > Information retrieval
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Computing
Published in:Advances in Information Retrieval. Lecture Notes in Computer Science 4956. Springer-Verlag.
Official URL:
Copyright Information:© 2008 Springer-Verlag The original publication is available at
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:16508
Deposited On:18 Aug 2011 15:03 by Shane Harper. Last Modified 02 Nov 2016 15:59

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