04:00
2026-10-07
machinebrief.com
artificial-intelligence
Learning to Decide, Not to Reason: Parameter-Efficient Decision Operators via Low-Rank Activation Steering
A new method called DecisionSteer trains a System-1 decision operator via behavior cloning using 330K parameters, matching a 1.33M-parameter reinforcement-learning-trained operator while collapsing 3,…