Unveiling Spectral Mechanisms in Training-Free LLM Text Detection

arXiv:2608.25944 · cs.CL · Submitted 2026-08-26 · Read on arXiv

cs.CL

Submitted: 2026-08-26

Updated: 2026-08-27

Code: https://github.com/TrustMedia-zju/Lastde_Detectorhttps:

Terminology

AUC — 28× in this paper · explained in 2 episodes
Accuracy — 7× in this paper · explained in 1 episode
Spectral Signature — 6× in this paper · explained in 2 episodes
Adaptation — 4× in this paper · explained in 1 episode
Benchmark — 4× in this paper · explained in 2 episodes
Consistency — 2× in this paper · explained in 3 episodes
Discrete Fourier Transform — 2× in this paper
Multiscale Diversity Entropy — 2× in this paper
Quantization — 2× in this paper · explained in 12 episodes
Robustness — 2× in this paper · explained in 5 episodes
Spectral Gap — 2× in this paper · explained in 5 episodes
Trace — 2× in this paper · explained in 2 episodes
Ablation — 1× in this paper · explained in 1 episode
Frequency-Domain Analysis — 1× in this paper · explained in 2 episodes
Generalization — 1× in this paper · explained in 13 episodes
Large Language Models (LLMs) — 1× in this paper · explained in 6 episodes
Perplexity — 1× in this paper · explained in 3 episodes
Score Function — 1× in this paper · explained in 4 episodes
Structural Integrity — 1× in this paper · explained in 3 episodes
Transformer — 1× in this paper · explained in 2 episodes
Verification — 1× in this paper · explained in 2 episodes

Sources

Related papers