Type

Conference Proceedings

Authors

Gareth J. F. Jones
Liadh Kelly
Lorraine Goeuriot
Johannes Leveling

Subjects

Computer Science

Topics
domain specific information retrieval query performance ad hoc domain knowledge information retrieval concept based query expansion medical records retrieval domain adaptation

DCU@TRECMed 2012: Using ad-hoc baselines for domain-specific retrieval (2012)

Abstract This paper describes the first participation of DCU in the TREC Medical Records Track (TRECMed). We performed some initial experiments on the 2011 TRECMed data based on the BM25 retrieval model. Surprisingly, we found that the standard BM25 model with default parameters, performs comparable to the best automatic runs submitted to TRECMed 2011 and would have resulted in rank four out of 29 participating groups. We expected that some form of domain adaptation would increase performance. However, results on the 2011 data proved otherwise: concept-based query expansion decreased performance, and filtering and reranking by term proximity also decreased performance slightly. We submitted four runs based on the BM25 retrieval model to TRECMed 2012 using standard BM25, standard query expansion, result filtering, and concept-based query expansion. Official results for 2012 confirm that domain-specific knowledge does not increase performance compared to the BM25 baseline as applied by us.
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 = Research Initiatives and Centres: Centre for Next Generation Localisation (CNGL)
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
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres

Full list of authors on original publication

Gareth J. F. Jones, Liadh Kelly, Lorraine Goeuriot, Johannes Leveling

Experts in our system

1
Gareth J. F. Jones
Dublin City University
Total Publications: 297
 
2
Liadh Kelly
Dublin City University
Total Publications: 51
 
3
Lorraine Goeuriot
Dublin City University
Total Publications: 24
 
4
Johannes Leveling
Dublin City University
Total Publications: 66