Lingxiao Qu

SEP 9, 2026 · PREPRINT

Exact Degeneracy Under Balanced k-Shot Sampling:Consequences for Small-Sample Discriminant Analysis on LLM Embeddings

arXiv

This is a preprint describing a mathematical degeneracy in small-sample discriminant analysis on LLM embeddings, with empirical validation on few-shot text classification; the work is novel and methodologically sound but unreviewed, addresses a technical limitation rather than a clinical or practice outcome, and does not yet establish superiority of a proposed solution.