1. Medical Text Indexing Joe Thomas Unit Supervisor Index Section, NLM

2. NLM INDEXING NLM’s web-based indexing system –All indexing performed via NLM’s web-based indexing, Data Creation and Maintenance System (DCMS) –MEDLINE indexing 30 NLM Staff 70 contractors (most work off site) Estimated 500,000 indexed articles this year

3. Created at NLM for Indexing and database maintenance Available where ever there is Internet access Interacts with MeSH and PubMed Allows for module integration, such as Medical Text Indexing and Gene Indexing DCMS

4. Indexing Initiative The objective of NLM’s Indexing Initiative is to investigate methods whereby automated indexing methods partially or completely substitute for current indexing practices http://ii.nlm.nih.gov/ http://www.lhncbc.nlm.nih.gov/ One product is Medical Text Indexing (MTI)

5. Medical Test Indexing (MTI) Under development at the Lister Hill Center The MTI system consists of software for applying alternative methods of discovering MeSH headings for citation titles and abstracts and then combining them into an ordered list of recommended indexing terms

6. Current MTI Testing Goals Indexer questionnaires 1.Improve quality of automated indexing terms 2.Overall indexer reaction to MTI –Increased productivity? –Useful indexing too –DCMS/MTI interface

7. DCMS article panel

8. DCMS main indexing panel

9. MTI indexing terms

10. Selected terms in MTI

11. Selected terms are validated MTI Indexing

12. Completed indexing record

13. First questionnaire - article level

15. Final MTI questionnaire