Deep learning-assisted comparative analysis of animal trajectories with DeepHL

Takuya Maekawa (), Kazuya Ohara, Yizhe Zhang, Matasaburo Fukutomi, Sakiko Matsumoto, Kentarou Matsumura, Hisashi Shidara, Shuhei J. Yamazaki, Ryusuke Fujisawa, Kaoru Ide, Naohisa Nagaya, Koji Yamazaki, Shinsuke Koike, Takahisa Miyatake, Koutarou D. Kimura, Hiroto Ogawa, Susumu Takahashi and Ken Yoda
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Takuya Maekawa: Osaka University
Kazuya Ohara: Osaka University
Yizhe Zhang: Osaka University
Matasaburo Fukutomi: Hokkaido University
Sakiko Matsumoto: Nagoya University
Kentarou Matsumura: Okayama University
Hisashi Shidara: Hokkaido University
Shuhei J. Yamazaki: Osaka University
Ryusuke Fujisawa: Kyushu Institute of Technology
Kaoru Ide: Doshisha University
Naohisa Nagaya: Kyoto Sangyo University
Koji Yamazaki: Tokyo University of Agriculture
Shinsuke Koike: Tokyo University of Agriculture and Technology
Takahisa Miyatake: Okayama University
Koutarou D. Kimura: Osaka University
Hiroto Ogawa: Hokkaido University
Susumu Takahashi: Doshisha University
Ken Yoda: Nagoya University

Nature Communications, 2020, vol. 11, issue 1, 1-15

Abstract: Abstract A comparative analysis of animal behavior (e.g., male vs. female groups) has been widely used to elucidate behavior specific to one group since pre-Darwinian times. However, big data generated by new sensing technologies, e.g., GPS, makes it difficult for them to contrast group differences manually. This study introduces DeepHL, a deep learning-assisted platform for the comparative analysis of animal movement data, i.e., trajectories. This software uses a deep neural network based on an attention mechanism to automatically detect segments in trajectories that are characteristic of one group. It then highlights these segments in visualized trajectories, enabling biologists to focus on these segments, and helps them reveal the underlying meaning of the highlighted segments to facilitate formulating new hypotheses. We tested the platform on a variety of trajectories of worms, insects, mice, bears, and seabirds across a scale from millimeters to hundreds of kilometers, revealing new movement features of these animals.

Date: 2020
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DOI: 10.1038/s41467-020-19105-0

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