Evaluating Small Language Models for News Summarization: Implications and Factors Influencing Performance

• URL: http://arxiv.org/abs/2502.00641v2
• Date: Tue, 11 Feb 2025 13:12:16 GMT
• Title: Evaluating Small Language Models for News Summarization: Implications and Factors Influencing Performance
• Authors: Borui Xu, Yao Chen, Zeyi Wen, Weiguo Liu, Bingsheng He,
• Abstract summary: Small language models (SLMs) present a more accessible alternative to large language models (LLMs) This paper presents a comprehensive evaluation of 19 SLMs for news summarization across 2,000 news samples.
• Score: 31.38160018745285
• License:
• Abstract: The increasing demand for efficient summarization tools in resource-constrained environments highlights the need for effective solutions. While large language models (LLMs) deliver superior summarization quality, their high computational resource requirements limit practical use applications. In contrast, small language models (SLMs) present a more accessible alternative, capable of real-time summarization on edge devices. However, their summarization capabilities and comparative performance against LLMs remain underexplored. This paper addresses this gap by presenting a comprehensive evaluation of 19 SLMs for news summarization across 2,000 news samples, focusing on relevance, coherence, factual consistency, and summary length. Our findings reveal significant variations in SLM performance, with top-performing models such as Phi3-Mini and Llama3.2-3B-Ins achieving results comparable to those of 70B LLMs while generating more concise summaries. Notably, SLMs are better suited for simple prompts, as overly complex prompts may lead to a decline in summary quality. Additionally, our analysis indicates that instruction tuning does not consistently enhance the news summarization capabilities of SLMs. This research not only contributes to the understanding of SLMs but also provides practical insights for researchers seeking efficient summarization solutions that balance performance and resource use.

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