| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-08-27 |
| タイトル |
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|
タイトル |
Classification of sounds from Pacific white-sided dolphins using a convolutional neural network and a method to reduce false-positive detections |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| キーワード |
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主題 |
Bioacoustics of mammals, Bioacoustics of fish and crustaceans, Acoustic modeling, simulation and analysis, Acoustic ecology, Animal sounds, MATLAB, Convolutional neural network, Signal-to-noise ratio, Regression analysis, Statistical analysis |
| 資源タイプ |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
metadata only access |
| 著者 |
Mishima, Yuka
Kawakami, Mizuki
Igarashi, Takeshi
Kita, Yuki F.
Morisaka, Tadamichi
|
| 書誌情報 |
en : The Journal of the Acoustical Society of America
巻 157,
号 6,
p. 4217-4232,
発行日 2025-06-05
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| 抄録 |
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内容記述 |
An automatic detector for identifying the clicks and pulsed calls of Pacific white-sided dolphins (Lagenorhynchus obliquidens) was developed using a convolutional neural network architecture for passive acoustic monitoring, particularly in the areas surrounding the Mutsu and Funka Bays in Japan. Recordings were made at one site in each bay during the spring and early summer in both 2022 and 2023. The data exhibited different soundscapes, as broadband pulses, possibly attributed to snapping shrimp, were found far more frequently in Mutsu Bay than in Funka Bay. The developed detector showed a precision, recall, and accuracy of 0.94–0.95, 0.94, and 0.98, respectively, for both call types. Furthermore, considering the social and gregarious characteristics of the investigated species, an additional selection criterion using a two-process model was proposed to eliminate hours with few positive images. The selection criterion could remove 58%–84% of false-positive images, 0%–0.5% of true-positive images for clicks, 32%–96% of false-positives, and 6%–33% of true-positives for pulsed calls during the periods that were manually inspected. Processing using a combination of the detector and selection criterion can be applied to passive acoustic monitoring around these bays to reveal the migration patterns of Lagenorhynchus obliquidens. |
| 内容記述 |
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|
内容記述 |
公開日: 2025-06-05 |
| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
0001-4966 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00253792 |
| DOI |
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関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1121/10.0036843 |
| 情報源 |
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関連識別子 |
https://pubs.aip.org/asa/jasa/article/157/6/4217/3348984/Classification-of-sounds-from-Pacific-white-sided |
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関連名称 |
Publisher's Version/PDF (Open Access) |
| 情報源 |
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関連識別子 |
https://acousticalsociety.org/ |
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関連名称 |
Acoustical Society of America |
| 出版者 |
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出版者 |
The Acoustical Society of America |
| 科学研究費研究課題 |
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言語 |
ja |
|
主題 |
イルカのコンタクトコールを用いた受動的音響観測システムの確立 |
|
主題URI |
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20K19976/ |
| 科学研究費研究課題 |
|
|
言語 |
en |
|
主題 |
Establishment of a passive acoustic monitoring system utilizing dolphin contact calls |
|
主題URI |
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20K19976/ |
| 科学研究費研究課題 |
|
|
言語 |
ja |
|
主題 |
受動的音響観測を用いた青森県周辺海域におけるカマイルカの来遊時期・経路の推定 |
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主題URI |
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24K20938/ |
| 科学研究費研究課題 |
|
|
言語 |
ja |
|
主題 |
バイモーダルな感覚器官を使い分けるイルカの共同採餌行動 |
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主題URI |
https://kaken.nii.ac.jp/grant/KAKENHI-PUBLICLY-22H05651/ |
| 科学研究費研究課題 |
|
|
言語 |
en |
|
主題 |
Cooperative hunting in dolphins using bimodal sensory organs |
|
主題URI |
https://kaken.nii.ac.jp/en/grant/KAKENHI-PUBLICLY-22H05651/ |
| 研究課題番号 |
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内容記述 |
20K19976 |
| 研究課題番号 |
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|
内容記述 |
24K20938 |
| 研究課題番号 |
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内容記述 |
22H05651 |
