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Apivich Hemachandra

4 accepted papers

2025

PIED: Physics-Informed Experimental Design for Inverse Problems

ICLR 2025poster

In many science and engineering settings, system dynamics are characterized by governing partial differential equations (PDEs), and a major challenge is to solve inverse problems (IPs) where unknown PDE parameters are inferred based on observational data gathered under limited budget. Due to the hi…

2025

Uncovering Scaling Laws for Large Language Models via Inverse Problems

EMNLP 2025

Large Language Models (LLMs) are large-scale pretrained models that have achieved remarkable success across diverse domains. These successes have been driven by unprecedented complexity and scale in both data and computations. However, due to the high costs of training such models, brute-force trial

Cited by 0SourcePDFScholar
2024

PINNACLE: PINN Adaptive ColLocation and Experimental points selection

ICLR 2024spotlight

Physics-Informed Neural Networks (PINNs), which incorporate PDEs as soft constraints, train with a composite loss function that contains multiple training point types: different types of collocation points chosen during training to enforce each PDE and initial/boundary conditions, and experimental p…

2023

Training-Free Neural Active Learning with Initialization-Robustness Guarantees

ICML 2023poster

Existing neural active learning algorithms have aimed to optimize the predictive performance of neural networks (NNs) by selecting data for labelling. However, other than a good predictive performance, being robust against random parameter initializations is also a crucial requirement in safety-crit…