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The LexBIG package represents a compressive set of software and services to load, publish, and access vocabulary. Cancer Centers can use the LexBIG package to install the NCI Thesaurus and NCI Metathesaurus and query content via a rich application programming interface (API). LexBIG services can also be incorporated into numerous applications wherever vocabulary content is needed.

Q. How do I install the LexBIG software?

Refer to the Installation and Administration Guide, which can be downloaded from the Files tab of the GForge project.

Q. How do I load vocabularies into LexBIG?

Content can be loaded using either the administrative functions provided by the LexBIG Graphical User Interface (GUI) or counterpart command-line scripts. Refer to the Installation and Administration Guide, which can be downloaded from the Files tab of the GForge project or referenced in the /doc folder of the installed materials.

Q. How do I access LexBIG vocabularies in my programs?

Refer to the Programmer Guide, which can be downloaded from the Files tab of the GForge project or found in the /doc folder of the installed materials.

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  • If the goal is to interact through a graphical user interface, other options are available. The LexBIG GUI, as described in the programmer and administration guides, provides a basic API-centric way to query and visualize content. It is a development time tool written for audiences that are both technical and somewhat familiar with the LexBIG API.
  • If the goal is to provide a general purpose end-user interface, other options are available. One browser-based front end to LexBIG is BioPortal. The BioPortal code base originates as part of work done by the National Center for Biomedical Ontology (NCBO), and provides the basis for the NCI BioPortal. The NCI BioPortal is available from NCI at http://gforge.nci.nih.gov/projects/lex-browser/.

Q. Do I need to develop my own application client to create/update/search a concept and for imports/exports with LexBIG?

Searching can be accomplished by one of the browser interfaces described above. However, content creation and maintenance are considered out of scope for the current LexBIG API which addresses load, publish, and query of fully versioned ontologies. LexBIG can consume many types of file formats (e.g. XML, OBO, RRF, OWL) as versioned ontologies. Given any structured source, it should be possible to review these files and create a transform for load into the LexGrid repository.

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