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This section describes the steps to download and install a full version of the NCI Thesaurus for the LexEVS Service. 

The NCI Thesaurus differs from other OWL formatted resources and, as a result administrators usually take advantage of some of the custom loading resources available in LexEVS.  While users can download the Thesaurus.owl file from NCI and load it into LexEVS without it failing, many users will want to customize it with xml formatted manifest and preferences files. 

Note
titleNote

The NCI Thesaurus has grown large enough that it can no longer be loaded on many typical desktop machines. We recommend a 64-bit operating system running on a multiprocessor computer with a minimum of 4g of memory. Server class Linux machines are the typical target for these loads. The time to load NCI Thesaurus will vary depending on machine, memory, and disk speed. Expect a couple of hours for a higher end machine.

Step

Action

1

Using a web or ftp client go to the URL: ftp://ftp1.nci.nih.gov/pub/cacore/EVS/
screenshot of FTP directory

2

Select the version of NCI Thesaurus OWL you wish to download. Save the file to a directory on your machine.

3

Extract the OWL file from the zip download and save in a directory on your machine. This directory will be referred to as NCI_THESAURUS_DIRECTORY

4

(Optional) Create Manifest and Preferences file.

Manifests control coding scheme metadata and can make adjustments to names and alternate names, versions and many other things that the source normally wants to say about the coding scheme.  This is very useful when the source itself does not supply this information, but the user needs to record it in the terminology service representation. 

Preference files control how data is loaded and while they don’t add anything to the source the may change the representation of a terminology, by making choices as to what is loaded as a property, entity or association from the source.

5

Using the LexEVS utilities load the NCI Thesaurus:

Code Block
cd {LEXEVS_HOME}/admin

For Windows installation use the following command:

Code Block
LoadOWL.bat –in "file:///{NCI_THESAURUS_DIRECTORY}/Thesaurus_10.10d.owl

For Linux installation use the following command:

Code Block
LoadOWL.sh –in "file:///{NCI_THESAURUS_DIRECTORY}/Thesaurus_10.10d.owl

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