Title
Speaker Verification on Unbalanced Data with Genetic Programming.
Abstract
Automatic Speaker Verification (ASV) is a highly unbalanced binary classification problem, in which any given speaker must be verified against everyone else. We apply Genetic programming (GP) to this problem with the aim of both prediction and inference. We examine the generalisation of evolved programs using a variety of fitness functions and data sampling techniques found in the literature. A significant difference between train and test performance, which can indicate overfitting, is found in the evolutionary runs of all to-be-verified speakers. Nevertheless, in all speakers, the best test performance attained is always superior than just merely predicting the majority class. We examine which features are used in good-generalising individuals. The findings can inform future applications of GP or other machine learning techniques to ASV about the suitability of feature-extraction techniques.
Year
DOI
Venue
2016
10.1007/978-3-319-31204-0_47
Lecture Notes in Computer Science
Keywords
Field
DocType
Speaker verification,Unbalanced data,Genetic programming,Feature selection
Speaker verification,Feature selection,Binary classification,Inference,Generalization,Computer science,Genetic programming,Artificial intelligence,Overfitting,Data sampling,Machine learning
Conference
Volume
ISSN
Citations 
9597
0302-9743
1
PageRank 
References 
Authors
0.35
9
5
Name
Order
Citations
PageRank
Róisín Loughran1213.63
Alexandros Agapitos221122.88
Ahmed Kattan39613.23
Anthony Brabazon491898.60
Michael O'Neill5152.17