Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.
The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.
Updates regarding government operating status and resumption of normal operations can be found at OPM.gov.

Projects

The SPECIALIST Lexicon

The SPECIALIST lexicon is a large syntactic lexicon of biomedical and general English, designed to provide the information needed for the SPECIALIST Natural Language Processing System. Coverage includes both commonly occurring English words and biomedical vocabulary. The lexicon entry for each lexical item records syntactic, morphological, and orthographic information. The lexicon has been released as one of the UMLS Knowledge Sources since 1994.

Lexical Tools

The SPECIALIST lexical tools are a set of JAVA programs designed to help users manage lexical variation in biomedical text. The tools use information from the SPECIALIST lexicon and other data to generate lexical variants of words or terms appropriate for use in indexing and other NLP applications.

MEDLINE N-Gram Set

The MEDLINE n-gram set is used to retrieve multiwords for building the SPECIALIST lexicon. Lexical Systems Group (LSG) would like to share this n-gram set (n = 1 ~ 5) with NLP|MLP community. Please download from the following links.