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Diversity-Enhanced Reasoning for Subjective Questions

Yumeng Wang, Zhiyuan Fan, Jiayu Liu, Yi R. Fung

2025-07-29

Diversity-Enhanced Reasoning for Subjective Questions

Summary

This paper talks about Diversity-Enhanced Reasoning, a new approach that helps AI models think about subjective questions from many different points of view to give better and more diverse answers.

What's the problem?

The problem is that AI models usually try to find one single right answer for questions, but subjective questions often have many valid answers depending on perspective, culture, or opinion. This makes it hard for AI to give varied or accurate responses.

What's the solution?

The paper introduces a method called MultiRole-R1, which trains AI models to consider multiple roles or perspectives when reasoning. It uses techniques like creating diverse training examples without supervision and reinforcement learning that rewards the model for giving diverse answers, not just one correct answer.

Why it matters?

This matters because it makes AI better at handling complex, open-ended questions where different opinions matter. This improvement helps AI be more useful in conversations, decision-making, and understanding human feelings and viewpoints.

Abstract

A diversity-enhanced framework with multiple role perspectives improves accuracy and diversity in subjective reasoning tasks through unsupervised data construction and reinforcement learning with reward shaping.