Time-frequency classification using a multiple hypotheses test: An application to the classification of humpback whale signals
We present a non-stationary signal classification algorithm based on a time-frequency representation and a multiple hypothesis test. The time-frequency representation is used to construct a time-dependent quadratic discriminant function. At selected points in time we evaluate the discriminant functi...
Main Authors: | , , |
---|---|
Format: | Conference Object |
Language: | English |
Published: |
I E E E, COMPUTER SOC PRESS
1997
|
Subjects: | |
Online Access: | https://espace.library.uq.edu.au/view/UQ:310414 |
id |
ftunivqespace:oai:espace.library.uq.edu.au:UQ:310414 |
---|---|
record_format |
openpolar |
spelling |
ftunivqespace:oai:espace.library.uq.edu.au:UQ:310414 2023-05-15T16:35:51+02:00 Time-frequency classification using a multiple hypotheses test: An application to the classification of humpback whale signals Roberts, G Zoubir, AM Boashash, B 1997-01-01 https://espace.library.uq.edu.au/view/UQ:310414 eng eng I E E E, COMPUTER SOC PRESS orcid:0000-0002-2404-9103 Acoustics Engineering Electrical & Electronic Conference Paper 1997 ftunivqespace 2020-08-05T07:35:35Z We present a non-stationary signal classification algorithm based on a time-frequency representation and a multiple hypothesis test. The time-frequency representation is used to construct a time-dependent quadratic discriminant function. At selected points in time we evaluate the discriminant function and form a set of statistics which are used to test the multiple hypotheses. The multiple hypotheses are treated simultaneously using the sequentially rejective Bonferroni test to control the probability of incorrect classification of one class. We show results for classifying three classes of humpback whale calls. The results demonstrate that this time-frequency method performs favourably when compared with a frequency domain method which assumes stationarity. Conference Object Humpback Whale The University of Queensland: UQ eSpace |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Acoustics Engineering Electrical & Electronic |
spellingShingle |
Acoustics Engineering Electrical & Electronic Roberts, G Zoubir, AM Boashash, B Time-frequency classification using a multiple hypotheses test: An application to the classification of humpback whale signals |
topic_facet |
Acoustics Engineering Electrical & Electronic |
description |
We present a non-stationary signal classification algorithm based on a time-frequency representation and a multiple hypothesis test. The time-frequency representation is used to construct a time-dependent quadratic discriminant function. At selected points in time we evaluate the discriminant function and form a set of statistics which are used to test the multiple hypotheses. The multiple hypotheses are treated simultaneously using the sequentially rejective Bonferroni test to control the probability of incorrect classification of one class. We show results for classifying three classes of humpback whale calls. The results demonstrate that this time-frequency method performs favourably when compared with a frequency domain method which assumes stationarity. |
format |
Conference Object |
author |
Roberts, G Zoubir, AM Boashash, B |
author_facet |
Roberts, G Zoubir, AM Boashash, B |
author_sort |
Roberts, G |
title |
Time-frequency classification using a multiple hypotheses test: An application to the classification of humpback whale signals |
title_short |
Time-frequency classification using a multiple hypotheses test: An application to the classification of humpback whale signals |
title_full |
Time-frequency classification using a multiple hypotheses test: An application to the classification of humpback whale signals |
title_fullStr |
Time-frequency classification using a multiple hypotheses test: An application to the classification of humpback whale signals |
title_full_unstemmed |
Time-frequency classification using a multiple hypotheses test: An application to the classification of humpback whale signals |
title_sort |
time-frequency classification using a multiple hypotheses test: an application to the classification of humpback whale signals |
publisher |
I E E E, COMPUTER SOC PRESS |
publishDate |
1997 |
url |
https://espace.library.uq.edu.au/view/UQ:310414 |
genre |
Humpback Whale |
genre_facet |
Humpback Whale |
op_relation |
orcid:0000-0002-2404-9103 |
_version_ |
1766026154778558464 |