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Knowledge Organization Systems for Systematic Chemical Assessments.

Paul Whaley1,2, Stephen W Edwards3, Andrew Kraft4

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This summary is machine-generated.

Knowledge Organization Systems (KOSs), including ontologies, enhance chemical assessments by improving information retrieval and overcoming the "streetlight effect." This leads to more accessible data on chemical exposure risks.

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Area of Science:

  • Environmental health sciences
  • Toxicology
  • Information science

Background:

  • Systematic reviews and evidence mapping improve chemical assessment transparency but face information retrieval challenges.
  • The "streetlight effect" in chemical assessments results from semantic and conceptual limitations in finding all relevant evidence.
  • Accurate evaluation of potential health effects from exposures is hindered by incomplete information retrieval.

Purpose of the Study:

  • To present Knowledge Organization Systems (KOSs) as a solution to the streetlight effect in chemical assessment information retrieval.
  • To illustrate how controlled vocabularies, thesauruses, and ontologies can form KOSs for systematic information access.
  • To demonstrate the potential of Adverse Outcome Pathways in developing a general KOS for chemical assessment.

Main Methods:

  • The commentary discusses the role of controlled vocabularies, thesauruses, and ontologies in overcoming information retrieval challenges.
  • The concept of Adverse Outcome Pathways is used as a model for a general KOS in chemical assessment.
  • The discussion outlines a four-step process for agreeing on and implementing ontologies in chemical assessment.

Main Results:

  • Knowledge Organization Systems (KOSs) offer a more systematic approach to accessing information relevant to chemical assessment.
  • Ontologies are identified as an underutilized component for effective knowledge organization in environmental health.
  • Implementing ontologies can significantly improve the accessibility of fragmented information on chemical exposure risks.

Conclusions:

  • Controlled vocabularies, thesauruses, and ontologies, as components of KOSs, are crucial for mitigating the streetlight effect in chemical assessments.
  • The development and implementation of ontologies present a tractable, albeit complex, pathway to enhance chemical risk assessment.
  • Successful ontology implementation can unlock computational methods for chemical assessment, leveraging comprehensive data from primary studies.