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Can We Quantify Domainhood? Exploring Measures to Assess Domain-Specificity in Web Corpora

  • Marina Santini
  • Wiktor Strandqvist
  • Mikael Nyström
  • Marjan Alirezai
  • Arne Jönsson
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 903)

Abstract

Web corpora are a cornerstone of modern Language Technology. Corpora built from the web are convenient because their creation is fast and inexpensive. Several studies have been carried out to assess the representativeness of general-purpose web corpora by comparing them to traditional corpora. Less attention has been paid to assess the representativeness of specialized or domain-specific web corpora. In this paper, we focus on the assessment of domain representativeness of web corpora and we claim that it is possible to assess the degree of domain-specificity, or domainhood, of web corpora. We present a case study where we explore the effectiveness of different measures - namely the Mann-Withney-Wilcoxon Test, Kendall correlation coefficient, Kullback–Leibler divergence, log-likelihood and burstiness - to gauge domainhood. Our findings indicate that burstiness is the most suitable measure to single out domain-specific words from a specialized corpus and to allow for the quantification of domainhood.

Notes

Acknowledgement

This research was supported by E-care@home, a “SIDUS - Strong Distributed Research Environment” project funded by the Swedish Knowledge Foundation. Project website: http://ecareathome.se/.

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Marina Santini
    • 1
  • Wiktor Strandqvist
    • 1
    • 2
  • Mikael Nyström
    • 1
    • 2
  • Marjan Alirezai
    • 3
  • Arne Jönsson
    • 1
    • 2
  1. 1.RISE SICSLinköpingSweden
  2. 2.Linköping UniversityLinköpingSweden
  3. 3.Örebro UniversityÖrebroSweden

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