Lund Silje Marquardsen, Nielsen Jonas, Gammelgård Frej, Nielsen Maria Gytkjær, Jensen Trine Hammer, Pertoldi Cino
Department of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, 9220 Aalborg, Denmark.
Aalborg Zoo, Mølleparkvej 63, 9000 Aalborg, Denmark.
Animals (Basel). 2024 Sep 30;14(19):2820. doi: 10.3390/ani14192820.
This study investigates the possibility of using machine learning models created in DeepLabCut and Create ML to automate aspects of behavioral coding and aid in behavioral analysis. Two models with different capabilities and complexities were constructed and compared to a manually observed control period. The accuracy of the models was assessed by comparison with manually scoring, before being applied to seven nights of footage of the nocturnal behavior of two African elephants (). The resulting data were used to draw conclusions regarding behavioral differences between the two elephants and between individually observed nights, thus proving that such models can aid researchers in behavioral analysis. The models were capable of tracking simple behaviors with high accuracy, but had certain limitations regarding detection of complex behaviors, such as the stereotyped behavior sway, and displayed confusion when deciding between visually similar behaviors. Further expansion of such models may be desired to create a more capable aid with the possibility of automating behavioral coding.
本研究探讨了使用在DeepLabCut和Create ML中创建的机器学习模型来实现行为编码自动化并辅助行为分析的可能性。构建了两个具有不同能力和复杂度的模型,并与手动观察的对照期进行比较。在将模型应用于两头非洲象夜间行为的七个夜晚的视频之前,通过与手动评分进行比较来评估模型的准确性。所得数据用于得出关于两头大象之间以及各个观察夜晚之间行为差异的结论,从而证明此类模型可帮助研究人员进行行为分析。这些模型能够高精度地跟踪简单行为,但在检测复杂行为(如刻板行为摇摆)方面存在一定局限性,并且在区分视觉上相似的行为时表现出困惑。可能需要进一步扩展此类模型,以创建一种更强大的辅助工具,实现行为编码自动化。