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Vikrant Varma

2 accepted papers

2025

MONA: Myopic Optimization with Non-myopic Approval Can Mitigate Multi-step Reward Hacking

ICML 2025poster

Future advanced AI systems may learn sophisticated strategies through reinforcement learning (RL) that humans cannot understand well enough to safely evaluate. We propose a training method which avoids agents learning undesired multi-step plans that receive high reward (multi-step "reward hacks") ev…

Cited by 1SourcePDFScholar
2024

Improving Sparse Decomposition of Language Model Activations with Gated Sparse Autoencoders

NeurIPS 2024poster

Recent work has found that sparse autoencoders (SAEs) are an effective technique for unsupervised discovery of interpretable features in language models' (LMs) activations, by finding sparse, linear reconstructions of those activations. We introduce the Gated Sparse Autoencoder (Gated SAE), which ac…

Cited by 6SourcePDFScholar