Unsupervised Terminological Ontology Learning based on Hierarchical Topic Modeling

29 Aug 2017 Xiaofeng Zhu Diego Klabjan Patrick Bless

In this paper, we present hierarchical relationbased latent Dirichlet allocation (hrLDA), a data-driven hierarchical topic model for extracting terminological ontologies from a large number of heterogeneous documents. In contrast to traditional topic models, hrLDA relies on noun phrases instead of unigrams, considers syntax and document structures, and enriches topic hierarchies with topic relations... (read more)

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