USBD: Universal Structural Basis Distillation for Source-Free Graph Domain Adaptation

We propose USBD, a source-free graph domain adaptation framework that distills source graphs into a compact universal structural basis spanning diverse topological patterns, then uses a spectral-aware ensemble to improve adaptation under severe structural shifts.

Authors: Yingxu Wang*, Kunyu Zhang*, Mengzhu Wang, Siyang Gao, Nan Yin
* Equal contribution

Links: [Paper]