Simpson Matthew S, Demner-Fushman Dina, Thoma George R
Lister Hill National Center for Biomedical Communications, U.S. National Library of Medicine, Bethesda, MD 20894.
AMIA Annu Symp Proc. 2010 Nov 13;2010:752-6.
Images and their associated text are an essential source of information in biomedical articles. However, their use in providing evidence for clinical case descriptions has yet to be evaluated in the context of information retrieval. Given the complexity of case-based document retrieval, understanding the importance of images and image-related text is critical for future research into text- and content-based approaches to this problem. In this study, we compare the extent to which image-related text is useful in facilitating document retrieval for both case-based information requests and ad-hoc clinical questions in the domain of family practice. We show that case-based document retrieval is significantly improved with the use of image-related text whereas retrieval for clinical questions is largely unaffected. This suggests that visual evidence is more relevant for the case descriptions used in our study than the clinical questions.
图像及其相关文本是生物医学文章中重要的信息来源。然而，在信息检索的背景下，其在为临床病例描述提供证据方面的作用尚未得到评估。鉴于基于病例的文档检索的复杂性，理解图像和与图像相关的文本的重要性对于未来针对此问题的基于文本和内容的方法研究至关重要。在本研究中，我们比较了与图像相关的文本在促进家庭医学领域基于病例的信息请求和临时临床问题的文档检索方面的有用程度。我们表明，使用与图像相关的文本可显著改善基于病例的文档检索，而对临床问题的检索在很大程度上不受影响。这表明视觉证据与我们研究中使用的病例描述比与临床问题更相关。
