Type

Conference Proceedings

Authors

Alan F. Smeaton
Aiden R. Doherty
Cathal Gurrin
Zhengwei Qiu

Subjects

Computer Science

Topics
information retrieval indexing dublin city university improvement ntcir algorithms location

DCU at NTCIR-8 GeoTime (2010)

Abstract In this report, we describe the experiments carried out by Dublin City University for NTCIR GeoTime 2009-10. In all we submitted five runs, which evaluated the benefit of including clustered location information when compared to a standard word-term text IR ranking. The baseline technique was the Lucene default and we developed three different algorithms to re-rank the results based on location occurrance. In conclusion we found that the inclusion of location information to re-rank documents only offered a minor improvement over the baseline. Our analysis leads us believe that larger gains can be made through including location information at the indexing and initial querying stage, and then refining the final ranked list by standard IR techniques.
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 Digital Video Processing (CDVP)
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools
Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: CLARITY: The Centre for Sensor Web Technologies
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

Alan F. Smeaton, Aiden R. Doherty, Cathal Gurrin, Zhengwei Qiu

Experts in our system

1
Alan F. Smeaton
Dublin City University
Total Publications: 450
 
2
Aiden R. Doherty
Dublin City University
Total Publications: 67
 
3
Cathal Gurrin
Dublin City University
Total Publications: 182
 
4
Zhengwei Qiu
Dublin City University
Total Publications: 18