LabelKAN提升鸟类物种分布预测,尤其擅长处理稀有物种与生态群落关系。
LabelKAN -- Kolmogorov-Arnold Networks for Inter-Label Learning: Avian Community Learning
- 基于柯尔莫戈洛夫-阿诺德网络学习物种间关联关系
- 对稀有物种预测准确率显著提升,空间模式置信度更高
- 适合关注生物多样性保护与群落结构分析的研究者
全球生物多样性丧失加速,推动《昆明-蒙特利尔全球生物多样性框架》等国际行动聚焦于遏制物种衰退。实现这一目标的关键挑战在于掌握物种分布及其在更广泛生态群落中的相互关系。近年来,联合物种分布建模的深度学习方法提升了预测性能,但有效整合物种间关系(而不仅是物种-环境关系)仍具挑战。我们提出LabelKAN,一种基于柯尔莫戈洛夫-阿诺德网络(KANs)的新框架,从各物种预测结果中学习跨标签连接。在鸟类分布建模中,LabelKAN在绝大多数物种上实现了显著性能提升,尤其在稀有及难预测物种上表现突出,这些物种在GBF等框架下设定保护目标时尤为关键。性能提升也带来更可信的空间分布预测和群落结构推断。以美国近年种群显著下降的大蓝鹭为例,该框架识别出纽约地区对大蓝鹭数量进一步减少最敏感的群落与物种。
原文摘要 · Abstract (English)
Global biodiversity loss is accelerating, prompting international efforts such as the Kunming-Montreal Global Biodiversity Framework (GBF) and the United Nations Sustainable Development Goals to direct resources toward halting species declines. A key challenge in achieving this goal is having access to robust methodologies to understand where species occur and how they relate to each other within broader ecological communities. Recent deep learning-based advances in joint species distribution modeling have shown improved predictive performance, but effectively incorporating community-level learning, taking into account species-species relationships in addition to species-environment relationships, remains an outstanding challenge. We introduce LabelKAN, a novel framework based on Kolmogorov-Arnold Networks (KANs) to learn inter-label connections from predictions of each label. When modeling avian species distributions, LabelKAN achieves substantial gains in predictive performance across the vast majority of species. In particular, our method demonstrates strong improvements for rare and difficult-to-predict species, which are often the most important when setting biodiversity targets under frameworks like GBF. These performance gains also translate to more confident predictions of the species spatial patterns as well as more confident predictions of community structure. We illustrate how the LabelKAN leads to qualitative and quantitative improvements with a focused application on the Great Blue Heron, an emblematic species in freshwater ecosystems that has experienced significant population declines across the United States in recent years. Using the LabelKAN framework, we are able to identify communities and species in New York that will be most sensitive to further declines in Great Blue Heron populations.
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