Learning-To-Measure: In-Context Active Feature Acquisition
Researchers have introduced Learning-to-Measure (L2M), a novel framework for active feature acquisition (AFA) that can learn across multiple tasks. L2M addresses the challenge of improving model performance by adaptively selecting features, particularly in scenarios with missing data and limited labels. The system utilizes uncertainty quantification and an acquisition agent that maximizes conditional mutual information, performing meta-AFA in-context without per-task retraining. Experiments show L2M matches or exceeds task-specific methods on synthetic and real-world tabular datasets. AI
IMPACT Introduces a more scalable approach to feature acquisition for AI models, especially in data-scarce environments.