Speculative Expansion
Speculative Expansion reduces sequential tree-search overhead by allowing workers to score from bounded-stale snapshots. Speculative Expansion reduced L=2 InfoTree overhead while keeping Mean@32 nearly unchanged. Speculative acceptance ave…
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Speculative Expansion reduces sequential tree-search overhead by allowing workers to score from bounded-stale snapshots. Speculative Expansion reduced L=2 InfoTree overhead while keeping Mean@32 nearly unchanged. Speculative acceptance averaged 92.3%, and policy-KL change explained most acceptance variance. Speculative expansions are accepted only if rescoring with the current Q-table keeps them within current top-K UUCB ranks.