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

Marina Santini, Wiktor Strandqvist, Mikael Nyström, Marjan Alirezai, Arne Jönsson
2018 Communications in Computer and Information Science  
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
more » ... im that it is possible to assess the degree of domainspecificity, 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.
doi:10.1007/978-3-319-99133-7_17 fatcat:ncso5ksl5vfwvkrdeqehfqbuze