Calibrated Inference for the Conditional Average Treatment Effect in the Few-Placebo Regime via Gaussian Processes

This arXiv batch includes multiple papers with security-relevant implications. The most relevant are: (1) “Evolving and Detecting Multi-Turn Deception using Geometric Signatures” — a method to generate realistic multi-turn deceptive prompt sequences via multi-objective genetic optimization and a lightweight detector using geometric embedding features (angular coverage, distance ratio, linearity plus pairwise similarities). The detector attains high recall (0.89) and test F1 in 0.74–0.86 across base, reworded and 3-turn truncations. (2) “Unsupervised Identification and Removal of Spurious Cor­-