These tools will no longer be maintained as of December 31, 2024. Archived webpage can be found here. Indexing Initiative Github repository under development. Contact NLM Customer Service if you have questions.

TOOLS: MetaMap

CTB - Custom Taxonomy Builder

Introduction

For users interested in creating their vocabulary in an online Graphical User Interface (GUI), we developed a Custom Taxonomy Builder (CTB) that allows submitting a set of seed terms for a given task or phenotype, edit the automatically-generated taxonomy, and download the custom-built files for use with MetaMap Lite or MetaMap.

Description

Given a list of seed terms and a set of UMLS files, the Custom Taxonomy Builder (CTB) generates a set of new UMLS-like concept records along with a subset the of UMLS containing the supplied terms and their word-based variants. CTB attempts to use sub-synonymy to infer which concepts map to a term in the termlist. If a mapping can not be found a synthetic concept outside of the UMLS is used. The set of mappings generated by the tool is then displayed to the user in a tree editor were the can select which terms in each concept should be used in the custom dataset. The tool will generate UMLS-like MRCONSO and MRSTY files using the supplied terms and the selected set of term synonyms.

CTB Resources