Desperately seeking data: knowledge base-database links. Academic Article uri icon

Overview

MeSH

  • Academic Medical Centers
  • Databases, Factual
  • Hospital Information Systems
  • Humans
  • New York City
  • Programming Languages
  • Software

MeSH Major

  • Artificial Intelligence
  • Computer Communication Networks

abstract

  • Linking a knowledge-based system (KBS) to a clinical database is a difficult task, but critical if such systems are to achieve widespread use. The Columbia-Presbyterian Medical Center's clinical event monitor provides alerts, interpretations, research screening, and quality assurance functions for the center. Its knowledge base consists of Arden Syntax Medical Logic Modules (MLMs). The knowledge base was analyzed in order to quantify the use and impact of KBS-database links. The MLM data slot, which contains the definition of these links, had almost as many statements (5.8 vs. 8.8, ns with p = 0.15) and more tokens (122 vs. 76, p = 0.037) than the logic slot, which contains the actual medical knowledge. The data slot underwent about twice as many modifications over time as the logic slot (3.0 vs. 1.6 modifications/version, p = 0.010). Database queries and updates accounted for 97.2% of the MLM's total elapsed execution time. Thus, KBS-database links consume substantial resources in an MLM knowledge base, in terms of coding, maintenance, and performance.

publication date

  • 1993

has subject area

  • Academic Medical Centers
  • Artificial Intelligence
  • Computer Communication Networks
  • Databases, Factual
  • Hospital Information Systems
  • Humans
  • New York City
  • Programming Languages
  • Software

Research

keywords

  • Journal Article

Identity

Language

  • eng

PubMed Central ID

  • PMC2850654

PubMed ID

  • 8130552

Additional Document Info

start page

  • 639

end page

  • 643