Standardized mappings--a framework to combine different semantic mappers into a standardized web-API

Stud Health Technol Inform. 2015:212:23-6.

Abstract

Background: Automatic coding of medical terms is an important, but highly complicated and laborious task.

Objectives: To compare and evaluate different strategies a framework with a standardized web-interface was created. Two UMLS mapping strategies are compared to demonstrate the interface.

Methods: The framework is a Java Spring application running on a Tomcat application server. It accepts different parameters and returns results in JSON format. To demonstrate the framework, a list of medical data items was mapped by two different methods: similarity search in a large table of terminology codes versus search in a manually curated repository. These mappings were reviewed by a specialist.

Results: The evaluation shows that the framework is flexible (due to standardized interfaces like HTTP and JSON), performant and reliable. Accuracy of automatically assigned codes is limited (up to 40%).

Conclusion: Combining different semantic mappers into a standardized Web-API is feasible. This framework can be easily enhanced due to its modular design.

MeSH terms

  • Electronic Health Records / standards*
  • Germany
  • Internet / standards
  • Medical Record Linkage / standards
  • Natural Language Processing*
  • Pattern Recognition, Automated / standards
  • Semantics*
  • Software / standards*
  • Terminology as Topic*
  • Unified Medical Language System / standards*