Leveraging LLMs for Title and Abstract Screening for Systematic Review: A Cost-Effective Dynamic Few-Shot Learning Approach

• URL: http://arxiv.org/abs/2512.11261v1
• Date: Fri, 12 Dec 2025 03:51:54 GMT
• Title: Leveraging LLMs for Title and Abstract Screening for Systematic Review: A Cost-Effective Dynamic Few-Shot Learning Approach
• Authors: Yun-Chung Liu, Rui Yang, Jonathan Chong Kai Liew, Ziran Yin, Henry Foote, Christopher J. Lindsell, Chuan Hong,
• Abstract summary: We propose a two-stage dynamic few-shot learning approach to improve the efficiency and performance of large language models (LLMs) in the title and abstract screening task.<n>We evaluated this approach across 10 systematic reviews, and the results demonstrate its strong generalizability and cost-effectiveness.
• Score: 4.746720136392869
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Systematic reviews are a key component of evidence-based medicine, playing a critical role in synthesizing existing research evidence and guiding clinical decisions. However, with the rapid growth of research publications, conducting systematic reviews has become increasingly burdensome, with title and abstract screening being one of the most time-consuming and resource-intensive steps. To mitigate this issue, we designed a two-stage dynamic few-shot learning (DFSL) approach aimed at improving the efficiency and performance of large language models (LLMs) in the title and abstract screening task. Specifically, this approach first uses a low-cost LLM for initial screening, then re-evaluates low-confidence instances using a high-performance LLM, thereby enhancing screening performance while controlling computational costs. We evaluated this approach across 10 systematic reviews, and the results demonstrate its strong generalizability and cost-effectiveness, with potential to reduce manual screening burden and accelerate the systematic review process in practical applications.

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