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2023Nature

Faster sorting algorithms discovered using deep reinforcement learning

Daniel J. Mankowitz, Andrea Michi, Anton Zhernov et al.

What this work does

Learns policy/value-guided assembly-program search with separate correctness/latency value predictions and explicit instruction constraints.

Connection to discovery

A concrete long-horizon construction problem where dense correctness feedback, search and terminal performance have distinct roles.

Evidence

Inspected input-output correctness checking, training details, comparison with stochastic superoptimization and reported deployment of sorting routines.

Scope and limitations

Instruction sets and program sizes are bounded. Latency proxies may disagree with measured hardware performance; improvements of a subroutine are not whole-system speedups.

THE RESEARCH CONVERSATION

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