Attention-head pruning partially lowers backdoor attack effects in BERT without trigger knowledge, but the best strategy depends on trigger type and the attack is weakened, not removed.
Cascalheira, Shah Muhammad Hamdi, Soukaina Filali Boubrahimi, and Jillian R
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Pruning Strategies for Backdoor Defense in LLMs
Attention-head pruning partially lowers backdoor attack effects in BERT without trigger knowledge, but the best strategy depends on trigger type and the attack is weakened, not removed.