Exploring models for semantic category verification

D. Roussinov, O. Turetken

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Many artificial intelligence tasks, such as automated question answering, reasoning, or heterogeneous database integration, involve verification of a semantic category (e.g. 'coffee' is a drink, 'red' is a color, while 'steak' is not a drink and 'big' is not a color). In this research, we explore completely automated on-the-fly verification of a membership in any arbitrary category which has not been expected a priori. Our approach does not rely on any manually codified knowledge (such as WordNet or Wikipedia) but instead capitalizes on the diversity of topics and word usage on the World Wide Web, thus can be considered 'knowledge-light' and complementary to the 'knowledge-intensive' approaches. We have created a quantitative verification model and established (1) what specific variables are important and (2) what ranges and upper limits of accuracy are attainable. While our semantic verification algorithm is entirely self-contained (not involving any previously reported components that are beyond the scope of this paper), we have tested it empirically within our fact seeking engine on the well known TREC conference test questions. Due to our implementation of semantic verification, the answer accuracy has improved by up to 16% depending on the specific models and metrics used.
Original languageEnglish
Pages (from-to)753-765
Number of pages13
JournalInformation Systems
Volume34
Issue number8
DOIs
Publication statusPublished - Dec 2009

Keywords

  • semantic category verification
  • automated question answering
  • text mining
  • world wide web
  • search engines

Fingerprint Dive into the research topics of 'Exploring models for semantic category verification'. Together they form a unique fingerprint.

  • Cite this