Revitalizing Saturated Benchmarks: A Weighted Metric Approach for Differentiating Large Language Model Performance

• URL: http://arxiv.org/abs/2503.05551v1
• Date: Fri, 07 Mar 2025 16:25:09 GMT
• Title: Revitalizing Saturated Benchmarks: A Weighted Metric Approach for Differentiating Large Language Model Performance
• Authors: Bryan Etzine, Masoud Hashemi, Nishanth Madhusudhan, Sagar Davasam, Roshnee Sharma, Sathwik Tejaswi Madhusudhan, Vikas Yadav,
• Abstract summary: Existing benchmarks are saturated and struggle to separate model performances due to factors like data contamination.<n>This paper introduces theEnhanced Model Differentiation Metric, a novel weighted metric that revitalizes benchmarks by enhancing model separation.
• Score: 3.666887868385651
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: Existing benchmarks are becoming saturated and struggle to separate model performances due to factors like data contamination and advancing LLM capabilities. This paper introduces EMDM (Enhanced Model Differentiation Metric), a novel weighted metric that revitalizes benchmarks by enhancing model separation. EMDM integrates final answer and Chain-of-Thought (CoT) reasoning correctness, assigning weights based on the complexity and reasoning depth required to solve a given sample in the evaluation data. Using a baseline LLM in two setups-Unguided, where the model has no prior exposure to test samples, and Guided, where the model has prior knowledge of the desired answer-EMDM distinguishes instances of varying difficulty. The CoT and answer correctness from these setups inform an optimization objective for weight assignment, resulting in a more nuanced evaluation of model performance. Compared to the exact match (EM) metric, which achieves 17% separation on ARC-Challenge, EMDM achieves 46%, demonstrating its effectiveness in differentiating models based on reasoning and knowledge requirements.

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