Type

Conference Proceedings

Authors

Adenike M. Lam-Adesina
Eamonn Newman
Ke Zhang
Gareth J. F. Jones

Subjects

Computer Science

Topics
searching spontaneous speech transcriptions metadata information retrieval sources retrieval effectiveness field combination speech retrieval datafusion

Examining the contributions of automatic speech transcriptions and metadata sources for searching spontaneous conversational speech (2007)

Abstract The searching spontaneous speech can be enhanced by combining automatic speech transcriptions with semantically related metadata. An important question is what can be expected from search of such transcriptions and different sources of related metadata in terms of retrieval effectiveness. The Cross-Language Speech Retrieval (CL-SR) track at recent CLEF workshops provides a spontaneous speech test collection with manual and automatically derived metadata fields. Using this collection we investigate the comparative search effectiveness of individual fields comprising automated transcriptions and the available metadata. A further important question is how transcriptions and metadata should be combined for the greatest benefit to search accuracy. We compare simple field merging of individual fields with the extended BM25 model for weighted field combination (BM25F). Results indicate that BM25F can produce improved search accuracy, but that it is currently important to set its parameters suitably using a suitable training set.
Collections Ireland -> Dublin City University -> Publication Type = Conference or Workshop Item
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 -> Status = Published
Ireland -> Dublin City University -> Subject = Computer Science: Information retrieval
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres

Full list of authors on original publication

Adenike M. Lam-Adesina, Eamonn Newman, Ke Zhang, Gareth J. F. Jones

Experts in our system

1
Eamonn Newman
Dublin City University
Total Publications: 27
 
2
Gareth J. F. Jones
Dublin City University
Total Publications: 265