Ontology-based information extraction and information retrieval in health care domain

Tran Quoc Dung, Wataru Kameyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Ontology-based information extraction is considered as an effective method to improve the performance of information extraction (IE) systems. In order to build a better IE system using ontology-based technique, the two challenges should be most taken into account are semantic elements extraction, and ontology enhancement. Focusing on the two key points above, we propose an ontology-based information extraction system and its application information retrieval system in the health care domain. In ontology-based information extraction system, we propose a non part-of-speech based method for the semantic elements extraction and the ontology enhancement to overcome the above challenges. Experiments and Results show that all functions work well in the whole system. Many kinds of semantic elements can be extracted by the proposed extraction functions regardless parts-of-speech of words. High ratio of new semantic elements is detected for the ontology and database enrichment that yield very good results in information retrieval. The system is implemented in Vietnamese.

Original languageEnglish
Title of host publicationData Warehousing and Knowledge Discovery - 9th International Conference, DaWaK 2007, Proceedings
Pages323-333
Number of pages11
Publication statusPublished - 2007 Dec 1
Event9th International Conference on Data Warehousing and Knowledge Discovery, DaWaK 2007 - Regensburg, Germany
Duration: 2007 Sep 32007 Sep 7

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4654 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference9th International Conference on Data Warehousing and Knowledge Discovery, DaWaK 2007
CountryGermany
CityRegensburg
Period07/9/307/9/7

Keywords

  • Information extraction
  • Information retrieval
  • Ontology
  • Ontology enhancement

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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  • Cite this

    Dung, T. Q., & Kameyama, W. (2007). Ontology-based information extraction and information retrieval in health care domain. In Data Warehousing and Knowledge Discovery - 9th International Conference, DaWaK 2007, Proceedings (pp. 323-333). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 4654 LNCS).