DFPE: A Diverse Fingerprint Ensemble for Enhancing LLM Performance

• URL: http://arxiv.org/abs/2501.17479v2
• Date: Thu, 06 Feb 2025 21:47:55 GMT
• Title: DFPE: A Diverse Fingerprint Ensemble for Enhancing LLM Performance
• Authors: Seffi Cohen, Niv Goldshlager, Nurit Cohen-Inger, Bracha Shapira, Lior Rokach,
• Abstract summary: We propose a novel ensemble method - Diverse Fingerprint Ensemble (DFPE) Our approach involves: (1) clustering models based on response "fingerprints" patterns, (2) applying a quantile-based filtering mechanism, and (3) assigning adaptive weights to remaining models. In experiments on the Massive Multitask Language Understanding (MMLU) benchmark, DFPE outperforms the best single model by 3% overall accuracy and 5% in discipline-level accuracy.
• Score: 11.753349115726952
• License:
• Abstract: Large Language Models (LLMs) have shown remarkable capabilities across various natural language processing tasks but often struggle to excel uniformly in diverse or complex domains. We propose a novel ensemble method - Diverse Fingerprint Ensemble (DFPE), which leverages the complementary strengths of multiple LLMs to achieve more robust performance. Our approach involves: (1) clustering models based on response "fingerprints" patterns, (2) applying a quantile-based filtering mechanism to remove underperforming models at a per-subject level, and (3) assigning adaptive weights to remaining models based on their subject-wise validation accuracy. In experiments on the Massive Multitask Language Understanding (MMLU) benchmark, DFPE outperforms the best single model by 3% overall accuracy and 5% in discipline-level accuracy. This method increases the robustness and generalization of LLMs and underscores how model selection, diversity preservation, and performance-driven weighting can effectively address challenging, multi-faceted language understanding tasks.

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