Constant-Target Energy Matching: A Unified Framework for Continuous and Discrete Density Estimation
Researchers introduce Constant-Target Energy Matching (CTEM), a unified framework for density estimation that handles continuous, discrete, and mixed-variable data types within a single objective function. CTEM replaces traditional density-ratio regression with a bounded energy-difference transform, eliminating instability issues and partition-function estimation requirements while delivering improved sample quality across diverse data domains.