Related Experiment Videos
Using unbound subheadings to increase recall in MEDLINE
Bulletin of the Medical Library Association
|July 1, 1983
Summary
Indexers frequently use subheadings over main headings. Searching subheadings independently can significantly improve information retrieval efficiency.
Area of Science:
- Medical Informatics
- Information Science
Background:
- Indexers often utilize subheadings more frequently than their main headings.
- Analysis of selected subheadings revealed a higher usage compared to equivalent main headings.
Purpose of the Study:
- To evaluate the impact of subheading usage in information retrieval.
- To determine the efficiency of searching subheadings independently.
Main Methods:
- Comparative analysis of subheading and main heading usage by indexers.
- Examination of search retrieval when subheadings are treated as unbound headings.
Main Results:
- A significant portion of subheadings were posted more frequently than their main headings.
- One-third of analyzed subheadings showed twice the postings of their equivalent exploded main headings.
Conclusions:
- Searching subheadings as unbound terms can enhance search retrieval.
- This strategy offers an efficient method for increasing the visibility of indexed information.