Departmental Papers (CIS)

Date of this Version

May 2005

Document Type

Journal Article


Reprinted from BMC Bioinformatics, Volume 6 (Suppl 1), Article Number S13, May 24, 2004, 7 pages.


Background: Document gene normalization is the problem of creating a list of unique identifiers for genes that are mentioned within a document. Automating this process has many potential applications in both information extraction and database curation systems. Here we present two separate solutions to this problem. The first is primarily based on standard pattern matching and information extraction techniques. The second and more novel solution uses a statistical classifier to recognize valid gene matches from a list of known gene synonyms.

Results: We compare the results of the two systems, analyze their merits and argue that the classification based system is preferable for many reasons including performance, simplicity and robustness. Our best systems attain a balanced precision and recall in the range of 74%–92%, depending on the organism.



Date Posted: 27 July 2006

This document has been peer reviewed.