arXiv:2604.18083cs.LGcs.AI2026-04

用神经网络建模稀疏生态数据,实现连续环境场重建。

Implicit neural representations as a coordinate-based framework for continuous environmental field reconstruction from sparse ecological observations

论文配图:Implicit neural representations as a coordinate-based framework for continuous environmental field reconstruction from sparse ecological observations
图 1 · 摘自论文原文
  • 以坐标为输入,用隐式神经表示学习连续空间与时空场。
  • 在物种分布、物候动态等场景中表现稳定,计算成本可预测。
  • 适合处理不规则采样大数据,可无缝集成到生态模型流程中。

从稀疏且不规则的观测数据重建连续环境场仍是环境建模与生物多样性信息学中的核心挑战。许多生态数据在时空上具有异质性,使基于网格的方法难以扩展或跨领域泛化。本文评估了隐式神经表示(INRs)作为基于坐标的建模框架,直接从坐标输入中学习连续的空间与时空场。我们在三个典型建模场景中分析其表现:物种分布重建、物候动态建模,以及从开放生物多样性数据中提取的形态分割。除了预测性能外,还考察了插值行为、空间一致性及对环境建模工作流相关的计算特性,包括可扩展性、分辨率无关查询和架构归纳偏置。结果表明,神经场能提供稳定的连续表示,计算成本可预测,可补充经典平滑器与树模型方法。这些发现表明,基于坐标的神经场是一种灵活的表示层,可整合进环境建模流水线与探索性分析框架,适用于大规模、不规则采样数据集。

原文摘要 · Abstract (English)

Reconstructing continuous environmental fields from sparse and irregular observations remains a central challenge in environmental modelling and biodiversity informatics. Many ecological datasets are heterogeneous in space and time, making grid-based approaches difficult to scale or generalise across domains. Here, we evaluate implicit neural representations (INRs) as a coordinate-based modelling framework for learning continuous spatial and spatio-temporal fields directly from coordinate inputs. We analyse their behaviour across three representative modelling scenarios: species distribution reconstruction, phenological dynamics, and morphological segmentation derived from open biodiversity data. Beyond predictive performance, we examine interpolation behaviour, spatial coherence, and computational characteristics relevant for environmental modelling workflows, including scalability, resolution-independent querying, and architectural inductive bias. Results show that neural fields provide stable continuous representations with predictable computational cost, complementing classical smoothers and tree-based approaches. These findings position coordinate-based neural fields as a flexible representation layer that can be integrated into environmental modelling pipelines and exploratory analysis frameworks for large, irregularly sampled datasets.

神经场生态建模连续表示坐标基

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