1. Medical Natural Language Understanding now and tomorrow
Dr. W. Ceusters
Dir R&D
Language & Computing nv
Dr. W. Ceusters

2. semantic representations information processing
Language Engineering
speech
text
semantic representations
speech
recognition
TTS
language models
semantic models
dialogue models
speech models
natural
language
understanding
text
generation
information processing
Dr. W. Ceusters

3. Levels of language understanding
Morphology
Syntactic understanding
part of speech assignment (tagging)
sentence formation (syntactic parsing)
Semantic understanding
word meaning (lemmatization)
word group meaning (semantic indexing)
semantic representation
Pragmatics, speech acts, dialogue ...
Dr. W. Ceusters

4. The L&C approach L & C LinC Base Language A Proprietary Terminologies
Lexicon
Grammar
Language A
Proprietary Terminologies
Lexicon
Grammar
Language B
Others ...
ICPC
SNOMED
Formal Domain Ontology
ICD
Cassandra Linguistic Ontology
LinC Base
& L C
MedDRA
Dr. W. Ceusters

5. L&C’s LinCFactory
Dr. W. Ceusters

6. Reclassify: VOET-EXARTICULATIE
Definition given by domain-expert:
( ( VOETEXARTICULATIE )
{ [ IS_A ] ( EXARTICULATIE ) }
{ [ HAS_THEME ] ( VOET ) } )
Redefinition by automatic classifier
{ [ IS_A ] ( VOETAMPUTATIE ) }
{ [ IS_A ] ( EXARTICULATIE ) } )
Links removed during optimisation:
( VOETEXARTICULATIE ) { [ HAS_THEME ] ( VOET ) }
Dr. W. Ceusters

7. Technology currently available
Dr. W. Ceusters

8. Smart spellchecking servers
Dr. W. Ceusters

9. Contextual spellchecking
Dr. W. Ceusters

10. Contextual spellchecking
Dr. W. Ceusters

11. Integration of coding systems
Dr. W. Ceusters

12. Multi-lingual multisystem encoding
Dr. W. Ceusters

13. String indexing (bad practice)
Dr. W. Ceusters

14. String indexing (bad practice)
Dr. W. Ceusters

15. Semantic indexing (good practice)
Dr. W. Ceusters

16. Natural language drug prescription
Dr. W. Ceusters

17. Technology
for
tomorrow
Dr. W. Ceusters

18. The hidden computer
Dr. W. Ceusters

19. The “new” technology of tomorrow
Colles’ fracture
Smiths’ fracture
radius fracture
Pouteau fracture
fracture of arm
fracture of long bone
proximal radial
shaft fracture
fracture
SYSTEM Knowledge base
SYSTEM
Information
store
I/O Interface
GUI
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SPEECH
NLU
Dr. W. Ceusters