Kahen Lab

Research

2026 / PAPER / SOFTWARE

Can Compression Detect Model-Associated Signatures Across Held-Out Prompts?

A fixed-cohort study testing whether general-purpose compression detects model-associated signatures across held-out prompt sets in short continuations from 127 model endpoints and configurations. The results support candidate-ranking structure beyond exact response length, while character n-gram TF-IDF is stronger and the evidence does not establish open-set or forensic attribution.

2026 / PAPER / SOFTWARE

Testing EvoForest Beyond Structural Breaks: An Independent Evaluation on Atrial-Fibrillation Detection

An independent evaluation of an EvoForest architecture reimplementation on PhysioNet/CinC 2017 atrial-fibrillation detection. The study finds transferable signal from graph evolution, while a fixed random-convolution representation performs better and exposes redundancy, proposal failures, and computational costs.

2026 / PAPER / SOFTWARE

QALBench: A Tiered Audit Benchmark and Reference Implementation for Quantum Artificial-Life Claims

A preprint introducing a tiered audit benchmark for quantum artificial-life claims, separating artificial-life evidence, quantum-resource relevance, and computational nonclassicality.

2026 / PAPER / SOFTWARE

Population Digital Red Queen: A Model of LLM-Driven Coevolution in Program Ecosystems

A preprint and research artifact studying whether LLM-driven adversarial program evolution changes when the evolving object is a population rather than a single champion. The repository contains the manuscript, Core War pilot and benchmark harnesses, generated warrior artifacts, figures, tables, and reproducibility scripts.