Improving Toponym Disambiguation by Iteratively Enhancing Certainty of Extraction

Mena Badieh Habib, Maurice van Keulen

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

9 Citations (Scopus)
103 Downloads (Pure)

Abstract

Named entity extraction (NEE) and disambiguation (NED) have received much attention in recent years. Typical fields addressing these topics are information retrieval, natural language processing, and semantic web. This paper addresses two problems with toponym extraction and disambiguation (as a representative example of named entities). First, almost no existing works examine the extraction and disambiguation interdependency. Second, existing disambiguation techniques mostly take as input extracted named entities without considering the uncertainty and imperfection of the extraction process. It is the aim of this paper to investigate both avenues and to show that explicit handling of the uncertainty of annotation has much potential for making both extraction and disambiguation more robust. We conducted experiments with a set of holiday home descriptions with the aim to extract and disambiguate toponyms. We show that the extraction confidence probabilities are useful in enhancing the effectiveness of disambiguation. Reciprocally, retraining the extraction models with information automatically derived from the disambiguation results, improves the extraction models. This mutual reinforcement is shown to even have an effect after several automatic iterations.
Original languageUndefined
Title of host publicationProceedings of the 4th International Conference on Knowledge Discovery and Information Retrieval, KDIR 2012
Place of PublicationSpain
PublisherSCITEPRESS
Pages399-410
Number of pages12
ISBN (Print)978-989-8565-29-7
Publication statusPublished - Oct 2012
Event4th International Conference on Knowledge Discovery and Information Retrieval, KDIR 2012 - Barcelona, Spain
Duration: 4 Oct 20127 Oct 2012

Publication series

Name
PublisherSciTePress

Conference

Conference4th International Conference on Knowledge Discovery and Information Retrieval, KDIR 2012
Period4/10/127/10/12
Other4-7 Oct 2012

Keywords

  • METIS-289690
  • IR-81673
  • EWI-22241
  • ToponymsNamed Entity RecognitionNamed Entity LinkingNamed Entity ExtractionNamed Entity DisambiguationUncertain Annotations
  • Named Entity Extraction Named Entity Disambiguation Uncertain Annotations

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