BOSS achieves tilde-O(N m sqrt(tau) + N^(2/3) tau^(2/3) d m^(1/3) + N d^2 + tau m d) meta-regret for sequential linear bandits with shared low-rank representations and no task diversity assumption.
Meta learning in bandits within shared affine subspaces, 2024
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Beyond Task Diversity: Provable Representation Transfer for Sequential Multi-Task Linear Bandits
BOSS achieves tilde-O(N m sqrt(tau) + N^(2/3) tau^(2/3) d m^(1/3) + N d^2 + tau m d) meta-regret for sequential linear bandits with shared low-rank representations and no task diversity assumption.