Classification of large acoustic datasets using machine learning and crowdsourcing : application to whale calls
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Vocal communication is a primary communication method of killer and pilot whales, and is used for transmitting a broad range of messages and information for short and long distance. The large variation in call types of these species makes it challenging to categorize them. In this study, sounds recorded by audio sensors carried by ten killer whales and eight pilot whales close to the coasts of Norway, Iceland, and the Bahamas were analyzed using computer methods and citizen scientists as part of the Whale FM project. Results show that the computer analysis automatically separated the killer whales into Icelandic and Norwegian whales, and the pilot whales were separated into Norwegian long-finned and Bahamas short-finned pilot whales, showing that at least some whales from these two locations have different acoustic repertoires that can be sensed by the computer analysis. The citizen science analysis was also able to separate the whales to locations by their sounds, but the separation was somewhat less accurate compared to the computer method.
Shamir , L , Yerby , C , Simpson , R , Von Benda-Beckmann , A M , Tyack , P , Samarra , F , Miller , P & Wallin , J 2014 , ' Classification of large acoustic datasets using machine learning and crowdsourcing : application to whale calls ' Journal of the Acoustical Society of America , vol 135 , no. 2 , pp. 953-962 . DOI: 10.1121/1.4861348
Journal of the Acoustical Society of America
Copyright 2014 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in Journal of the Acoustical Society of America and may be found at http://scitation.aip.org/content/asa/journal/jasa/135/2/10.1121/1.4861348.
A.M.v.B.B. acknowledges support from the Sea Mammal Research Unit at the University of St. Andrews (Professor Ian Boyd) and Woods Hole Oceanographic Institution for the Whale FM project. P.T. received funding from the Marine Alliance for Science and Technology for Scotland (MASTS).
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