Author

Antonio Carta

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#artificial intelligence Preprint Oct 2026

How to Find and Reuse Policies for Continuous Adaptation in Lifelong Reinforcement Learning

In lifelong reinforcement learning, retaining previously learned policies is not sufficient for effective transfer to a new task. Useful knowledge may be distributed across several prior policies, and its relevance may change as the learner acquires experience. One hypothesis is that task similarity can be effectively...

Saptarshi Nath, Inish M. D'Souza, Antonio Carta et al. · 0 citations

Preprint Aug 2026

Z-PEFT: Zero-shot Backdoor Detection in Parameter-Efficient Fine-Tuning via Canonical Spectral Signatures

This work proposes Z-PEFT, a lightweight meta-classifier that relies exclusively on layer-wise spectral measures for classification, and achieves the best performance while maintaining low and scalable computational cost among weight-space detectors.

Nicola Pitzalis, Donald Shenaj, Giacomo Cignoni et al. · 0 citations