Title
Combining cohort and UBM models in open set speaker detection
Abstract
In speaker detection it is important to build an alternative model against which to compare scores from the `target' speaker model. Two alternative strategies for building an alternative model are to build a single global model by sampling from a pool of training data, the Universal Background (UBM), or to build a cohort of models from selected individuals in the training data for the target speaker. The main contribution in this paper is to show that these approaches can be unified by using a Support Vector Machine (SVM) to learn a decision rule in the score space made up of the output scores of the client, cohort and UBM model.
Year
DOI
Venue
2010
10.1007/s11042-009-0381-x
Multimedia Tools Appl.
Keywords
Field
DocType
Speaker detection,Speaker verification,Gaussian Mixture Models,Support Vector Machines,UBM,Cohort
Computer science,Artificial intelligence,Cohort,Open set,Decision rule,Pattern recognition,Support vector machine,Speech recognition,Sampling (statistics),Speaker detection,Machine learning,Mixture model,Global model
Journal
Volume
Issue
ISSN
48
1
1380-7501
Citations 
PageRank 
References 
6
0.46
25
Authors
2
Name
Order
Citations
PageRank
Anthony Brew1734.77
Pádraig Cunningham23086218.37