Publications by authors named "Libby Zhang"

Article Synopsis
  • Keypoint tracking algorithms can analyze animal movement in various settings but struggle to convert continuous keypoint data into distinct actions due to noise and jitter.
  • Keypoint-MoSeq is a machine learning platform that autonomously identifies behavioral modules (or 'syllables') from keypoint data by distinguishing useful behavior from noise.
  • This platform outperforms traditional clustering methods in recognizing behavioral transitions, correlating behavior with neural activity, and is applicable across different species and behaviors from video recordings.
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Artificial intelligence (AI) and machine learning (ML) present revolutionary opportunities to enhance our understanding of animal behaviour and conservation strategies. Using elephants, a crucial species in Africa and Asia's protected areas, as our focal point, we delve into the role of AI and ML in their conservation. Given the increasing amounts of data gathered from a variety of sensors like cameras, microphones, geophones, drones and satellites, the challenge lies in managing and interpreting this vast data.

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Keypoint tracking algorithms have revolutionized the analysis of animal behavior, enabling investigators to flexibly quantify behavioral dynamics from conventional video recordings obtained in a wide variety of settings. However, it remains unclear how to parse continuous keypoint data into the modules out of which behavior is organized. This challenge is particularly acute because keypoint data is susceptible to high frequency jitter that clustering algorithms can mistake for transitions between behavioral modules.

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