Indexing Initiative
Evaluation Analysis


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Date Information Available Precision (P) Recall (R) F1-Measure F2-Measure
November 2, 2001 0.2700 0.5400 0.3600 0.4583
March 14, 2007 0.3352 0.5593 0.4192 0.4933
January 5, 2010 0.3253 0.5984 0.4215 0.5124

Formulas Used:
   F1-Measure = 2 * ((P*R) / (P + R))
   F2-Measure = 5 * ((P*R) / ((4*P) + R))
   Old Wrong F2-Measure = 3 * ((P*R) / ((2*P) + R))


Last Modified: January 14, 2010 ii-public2
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NEW: Distributable version of the actual MetaMap program.
Indexing Initiative (II)
Investigating computer-assisted and fully automatic methodologies for indexing biomedical text. Includes the NLM Medical Text Indexer (MTI).
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Develop programs to provide usable semantic representation of biomedical text. Includes the MetaMap and SemRep programs.
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Java-Based distributable version of the MetaMap program.
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Test collection of manually curated MetaMap ambiguity resolution in support of word sense disambiguation research.
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Static MEDLINE® Baselines for use in research involving biomedical citations. Allows for query searches and test collection creation.
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Information about NLM's research on Structured Abstracts in the MEDLINE® Baselines.
 
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