@article{unsupervisedterminologicalontologylearni,
  title = {Unsupervised Terminological Ontology Learning based on Hierarchical Topic Modeling},
  author = {Xiaofeng Zhu and Diego Klabjan and Patrick Bless},
  year = {2017},
  eprint = {1708.09025},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1708.09025v1},
}