Modular Pluralism: Pluralistic Alignment via Multi-LLM Collaboration

Fuente: arXiv
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Main Authors: Feng, Shangbin, Sorensen, Taylor, Liu, Yuhan, Fisher, Jillian, Park, Chan Young, Choi, Yejin, Tsvetkov, Yulia
Format: Preprint
Published: 2024
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author Feng, Shangbin
Sorensen, Taylor
Liu, Yuhan
Fisher, Jillian
Park, Chan Young
Choi, Yejin
Tsvetkov, Yulia
author_facet Feng, Shangbin
Sorensen, Taylor
Liu, Yuhan
Fisher, Jillian
Park, Chan Young
Choi, Yejin
Tsvetkov, Yulia
contents While existing alignment paradigms have been integral in developing large language models (LLMs), LLMs often learn an averaged human preference and struggle to model diverse preferences across cultures, demographics, and communities. We propose Modular Pluralism, a modular framework based on multi-LLM collaboration for pluralistic alignment: it "plugs into" a base LLM a pool of smaller but specialized community LMs, where models collaborate in distinct modes to flexibility support three modes of pluralism: Overton, steerable, and distributional. Modular Pluralism is uniquely compatible with black-box LLMs and offers the modular control of adding new community LMs for previously underrepresented communities. We evaluate Modular Pluralism with six tasks and four datasets featuring questions/instructions with value-laden and perspective-informed responses. Extensive experiments demonstrate that Modular Pluralism advances the three pluralism objectives across six black-box and open-source LLMs. Further analysis reveals that LLMs are generally faithful to the inputs from smaller community LLMs, allowing seamless patching by adding a new community LM to better cover previously underrepresented communities.
format Preprint
id arxiv_https___arxiv_org_abs_2406_15951
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Modular Pluralism: Pluralistic Alignment via Multi-LLM Collaboration
Feng, Shangbin
Sorensen, Taylor
Liu, Yuhan
Fisher, Jillian
Park, Chan Young
Choi, Yejin
Tsvetkov, Yulia
Computation and Language
While existing alignment paradigms have been integral in developing large language models (LLMs), LLMs often learn an averaged human preference and struggle to model diverse preferences across cultures, demographics, and communities. We propose Modular Pluralism, a modular framework based on multi-LLM collaboration for pluralistic alignment: it "plugs into" a base LLM a pool of smaller but specialized community LMs, where models collaborate in distinct modes to flexibility support three modes of pluralism: Overton, steerable, and distributional. Modular Pluralism is uniquely compatible with black-box LLMs and offers the modular control of adding new community LMs for previously underrepresented communities. We evaluate Modular Pluralism with six tasks and four datasets featuring questions/instructions with value-laden and perspective-informed responses. Extensive experiments demonstrate that Modular Pluralism advances the three pluralism objectives across six black-box and open-source LLMs. Further analysis reveals that LLMs are generally faithful to the inputs from smaller community LLMs, allowing seamless patching by adding a new community LM to better cover previously underrepresented communities.
title Modular Pluralism: Pluralistic Alignment via Multi-LLM Collaboration
topic Computation and Language
url https://arxiv.org/abs/2406.15951