promotion/Llama-3.1-8B-TLDR-SurplusMaxMin-baseline

SurplusMaxMin on TL;DR

Matched game-aggregation control: same response pool, temperatures, disagreement point and optimiser budget as NBPO, differing only in how the objective weights are chosen.

• —Panel: TL;DR
• —Objectives: coverage, faithfulness, conciseness, helpfulness
• —Backbone / reference policy: meta-llama/Llama-3.1-8B-Instruct
• —Training budget: 300 optimiser updates, global batch 16
• —Reported in: Nash Bargaining Preference Optimization (NBPO), Table 2 (primary cross-method evaluation)

Evaluation protocol: independent objective-wise win rate against the common reference, judged by Llama-3.3-70B-Instruct on prompt-disjoint held-out prompts, both presentation orders.