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Developing search strategies for detecting high quality reviews in a hypertext test collection
1Division of Medical Informatics and Outcomes Research, Oregon Health Sciences University, Portland, USA.
Proceedings. AMIA Symposium
|February 3, 1999
Summary
Developing effective search strategies improves access to high-quality medical review articles on the World Wide Web (WWW). Advanced strategies enhance the retrieval of specific diagnostic, therapeutic, prognostic, and etiologic research.
Area of Science:
- Medical Informatics
- Information Retrieval
- Web Science
Background:
- Accessing high-quality medical review studies is crucial for evidence-based practice.
- The World Wide Web (WWW) contains a vast amount of medical information, but retrieving relevant, high-quality review articles can be challenging.
- Existing search strategies may not be optimal for identifying comprehensive review documents.
Purpose of the Study:
- To develop and evaluate search strategies for retrieving high-quality review studies.
- To identify effective methods for finding review articles on etiology, prognosis, therapy, and diagnosis.
- To enhance the discoverability of specific medical research topics within WWW medical documents.
Main Methods:
- An observational study was conducted on a collection of 1058 hypertext medical documents from governmental and academic WWW sites.
- Search strategies were developed based on terms found in high-quality review articles.
- The sensitivity and specificity of these strategies were determined by comparing them to a manual review of the document collection.
Main Results:
- Approximately 16% of the collected documents met the criteria for high-quality review articles.
- Identified search strategies demonstrated 87% sensitivity and 95% specificity for retrieving review documents.
- More complex strategies, utilizing terms from high-quality studies, were more sensitive (83-88%) than simple strategies (38-88%) for specific topics like diagnosis, therapy, prognosis, and etiology, and showed higher specificity for diagnosis and therapy.
Conclusions:
- Effective search strategies can be identified to improve the retrieval of review documents from WWW medical collections.
- These strategies enhance the ability to find review articles with a specific focus, such as diagnosis or therapy.
- The findings support the development of more sophisticated search techniques for medical literature on the web.