Type

Conference Proceedings

Authors

Yi-Xuan Liu
Jin-Tao Li
Gareth J. F. Jones
Bin Wang
Hao Lang

Subjects

Computer Science

Topics
individual queries ad hoc experimental information retrieval retrieval models dependency analysis term dependancy

An evaluation and analysis of incorporating term dependency for ad-hoc retrieval (2008)

Abstract 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.
Collections Ireland -> Dublin City University -> Publication Type = Conference or Workshop Item
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Engineering and Computing: School of Computing
Ireland -> Dublin City University -> Subject = Computer Science
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools
Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> Subject = Computer Science: Information retrieval
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Engineering and Computing

Full list of authors on original publication

Yi-Xuan Liu, Jin-Tao Li, Gareth J. F. Jones, Bin Wang, Hao Lang

Experts in our system

1
Gareth J. F. Jones
Dublin City University
Total Publications: 265