Leia Dickerson

US Government Accountability Office (GAO)

Senior Librarian, Taxonomy & Research


Leia Dickerson is a Senior Librarian for Taxonomy and Research on GAO’s Applied Research and Methods team (ARM). There she contributes to and consults on performance audits through providing research and information services. She also acts as ARM librarian liaison to the Forensic Audits and Investigative Service and Health Care teams and serves as the business owner for the GAO’s taxonomy program.

Since joining GAO in 2009, Leia’s research work has touched hundreds of engagements and has spanned various subject areas, including rural health care, economic sanctions, behavioral health, and fraud risk management. She graduated with a Masters of Library Science from the University of Maryland, College Park and a BA in Political Science from Wellesley College.

Talks and Events

Combatting & Measuring Fraud: GAO’s Use of Ontology

Fraud hurts the integrity of US federal programs and erodes the public’s trust in the government. To assist agencies with combatting fraud and to improve its measurement through common definitions, GAO has developed the GAO Fraud Ontology. The model addresses the key elements of what occurs in a fraud scheme affecting the federal government, related elements, and its implications. It also serves as the basis for the AntiFraud Resource, a site focused on educating federal program officials about fraud and strategies for assessing and managing their fraud risks. This presentation will detail the process used to to develop the ontology, how it is supporting GAO work, and future directions the work may take.

Track: Ontologies, Taxonomies and Data Modeling

Session Topics:

  • Ontologies
  • Business Use Cases
  • Government/Public Sector
  • Fraud Risk Management