Loss Function
Loss functions are crucial components of machine learning models, guiding the learning process by quantifying the difference between predicted and actual values. Current research emphasizes developing loss functions tailored to specific challenges, such as class imbalance in classification (addressed through asymmetric losses and hyperparameter distributions) and robustness to noise and outliers (using bounded and smooth alternatives to standard functions like mean squared error). These advancements improve model accuracy, efficiency, and generalizability across diverse applications, including medical image analysis, time series prediction, and physics-informed neural networks. The ongoing exploration of loss function design directly impacts the performance and reliability of machine learning models in various scientific and engineering domains.
Papers
Agnostic PAC Learning of k-juntas Using L2-Polynomial Regression
Mohsen Heidari, Wojciech Szpankowski
Unimodal Distributions for Ordinal Regression
Jaime S. Cardoso, Ricardo Cruz, Tomé Albuquerque
Safe Robot Learning in Assistive Devices through Neural Network Repair
Keyvan Majd, Geoffrey Clark, Tanmay Khandait, Siyu Zhou, Sriram Sankaranarayanan, Georgios Fainekos, Heni Ben Amor