1. cTAKES: Demo Clinical Text Analysis and Knowledge Extraction System
James Masanz
Mayo Clinic

2. UIMA CAS Visual Debugger (CVD)
Provided by / part of UIMA
Run a pipeline against free text
With appropriate 1st annotator, against XML such as CDA document
View annotations created (“debugger”)
Export annotations to XML (XCAS or XMI)

3. cTAKES: Components Sentence boundary detection (OpenNLP technology)
Tokenization (rule-based)
Morphologic normalization (NLM’s LVG)
POS tagging (OpenNLP technology)
Shallow parsing (OpenNLP technology)
Named Entity Recognition
Negation and context identification (NegEx)
Dependency parser
Drug Profile module
Smoking status classifier
CEM normalization module

4. Extend Earlier Example
Tamoxifen 20 mg po daily started on March 1, 2005 for 6 mo.
Aspirin prn.
Fx history of breast cancer. History of migraines.

5. Sentences

6. Tokens

7. Chunks

8. Windows for Lookup

9. Named Entity

11. Questions?

12. Live Demo of CVD