Assertion Identifier

An Assertion identifier checks whether there is a negation related to a specific clinical concepts in the text. A negation means the absence or opposite of something positive. CLAMP-Cancer Assertion Identifier provides a mechanism to examine the real-world implications of annotations in a given clinical text. The defaultNegexDict.txt file which contains common negation patterns is used by CLAMP-Cancer to check for negation in a clinical text. You can either replace or edit this file by following the steps below. (See the picture below)

To replace the Negation list file:
1. Double click on config.conf file to open it
2. Click on the button with three dots to browse for your own file
3. Click on the open button
  
  Replace the Negation list file
To edit the current dictionary file:
1. Double click on the defaultNegexDict.txt file to open it
2. Add the terms that you want to include in the dictionary file
3. Click the Save button at the top of the page
  
  Edit the current dictionary file