Hierarchical Web Catalog Integration with Conceptual Relationships in a Thesaurus Ing-Xiang Chen author Jui-Chi Ho author Cheng-Zen Yang author 2007-06 text International Journal of Computational Linguistics & Chinese Language Processing, Volume 12, Number 2, June 2007 conference publication chen-etal-2007-hierarchical https://aclanthology.org/O07-4003/ 2007-06 155 174