让自动实验系统主动发现未知现象,突破传统优化局限。
Beyond Optimization: Exploring Novelty Discovery in Autonomous Experiments
- 用新颖性评分+策略采样,主动探索未被覆盖的实验区域。
- 在真实扫描探针实验中,显著提升现象多样性。
- 适合追求意外发现的科研人员,推动科学深度突破。
自主实验(AEs)正通过融合人工智能与自动化平台,改变科学研究方式。现有AE主要聚焦于预设目标的优化,虽加速进程,却限制了对未知物理现象的发现。本文提出INS2ANE框架——集成新颖性评分-战略自主非光滑探索,包含两个核心组件:(1) 评估实验结果独特性的新颖性评分系统;(2) 即使在传统标准下看似不具前景,仍促进对低采样区域探索的策略性采样机制。我们在具有已知真值的图像-光谱对数据集上验证该方法,并应用于自主扫描探针显微镜实验。相比传统优化流程,INS2ANE显著提升了所探索现象的多样性,提高了发现此前未观测到现象的可能性。结果表明,该方法有望增强自主实验的科学发现深度,结合其高效性,可同步探索复杂实验空间以揭示新现象,加速科学研究进程。
原文摘要 · Abstract (English)
Autonomous experiments (AEs) are transforming how scientific research is conducted by integrating artificial intelligence with automated experimental platforms. Current AEs primarily focus on the optimization of a predefined target; while accelerating this goal, such an approach limits the discovery of unexpected or unknown physical phenomena. Here, we introduce a novel framework, INS2ANE (Integrated Novelty Score-Strategic Autonomous Non-Smooth Exploration), to enhance the discovery of novel phenomena in autonomous experimentation. Our method integrates two key components: (1) a novelty scoring system that evaluates the uniqueness of experimental results, and (2) a strategic sampling mechanism that promotes exploration of under-sampled regions even if they appear less promising by conventional criteria. We validate this approach on a pre-acquired dataset with a known ground truth comprising of image-spectral pairs. We further implement the process on autonomous scanning probe microscopy experiments. INS2ANE significantly increases the diversity of explored phenomena in comparison to conventional optimization routines, enhancing the likelihood of discovering previously unobserved phenomena. These results demonstrate the potential for AE to enhance the depth of scientific discovery; in combination with the efficiency provided by AEs, this approach promises to accelerate scientific research by simultaneously navigating complex experimental spaces to uncover new phenomena.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。