title: Managing free text for secondary use of health data.
abstract: OBJECTIVE
  To summarize the best papers in the field of Knowledge Representation and Management (KRM).
  
  
  METHODS
  A comprehensive review of medical informatics literature was performed to select some of the most interesting papers of KRM and natural language processing (NLP) published in 2013.
  
  
  RESULTS
  Four articles were selected, one focuses on Electronic Health Record (EHR) interoperability for clinical pathway personalization based on structured data. The other three focus on NLP (corpus creation, de-identification, and co-reference resolution) and highlight the increase in NLP tools performances.
  
  
  CONCLUSIONS
  NLP tools are close to being seriously concurrent to humans in some annotation tasks. Their use could increase drastically the amount of data usable for meaningful use of EHR.
authors.forename: N
authors.initials: N
authors.lastname: Griffon
authors.forename: J
authors.initials: J
authors.lastname: Charlet
authors.forename: S J
authors.initials: SJ
authors.lastname: Darmoni
mesh_terms: D019091:Critical Pathways; D063045:Crowdsourcing; D000068240:Data Anonymization; D057286:Electronic Health Records / Q000458:organization & administration; D058436:Knowledge Management; D009323:Natural Language Processing; D009626:Terminology as Topic
keywords: Medical informatics; knowledge representation; natural language processing; ontology; semantic web