Work

Who Taught You That? Tracing Teachers in Model Distillation

Year: 2025
Type: conference-paper
Abstract: Model distillation-using outputs from a large teacher model to teach a small student modelis a practical means of creating efficient models for a particular task.We ask: Can we identify a students' teacher based on its outputs?Such "footprints" left by teacher LLMs would be interesting artifacts.Beyond this, reliable teacher inference may have practical implications as actors seek to distill specific capabilities of massive proprietary LLMs into deployed smaller LMs, potentially violating terms of service. 1 We consider practical task distillation targets including summarization, question answering, and instruction-following.We assume a finite set of candidate teacher models, which we treat as blackboxes.We design discriminative models that operate over lexical features.We find that n-gram similarity alone is unreliable for identifying teachers, but part-of-speech (PoS) templates (Shaib et al., 2024b) preferred by student models mimic those of their teachers.
Language: English
Open Access status: gold
OpenAlex ID: W4412888874
FWCI: 1.009
Cites:
Cited by: 1
Related to: 10